PolySwitch Resettable Devices

Transcription

1 PolySwitch Resettable evices Strap attery evices Raychem ircuit Protection, pioneer of polymeric PT resettable devices, has developed several material platforms specifically tailored to help protect battery applications. ach of these material platforms offers different performance characteristics, allowing the engineer greater design flexibility. Raychem ircuit Protection s battery protection family includes SRP, LTP, LR4, VTP, VLP, and VLR series, disc, and special application strap devices. Strap attery evices enefits Many material platforms and device form factors give engineers more design flexibility ompatible with high-volume electronics assembly ssists in meeting regulatory requirements Low resistance devices increase battery operating time pplications Mobile phone battery packs ordless phone battery packs Mobile radio packs eatures RoHS compliant Lead free versions of all devices are available upon request road range of resettable devices available urrent ratings from 0.7 to 4. Voltage ratings from 2V to 30V gency recognition, UL, S, TÜV ast time-to-trip Low resistance omputer battery packs amcorder battery packs P battery packs 5

2 Protection pplication Selection Guide for Strap attery evices The guide below lists PolySwitch devices which are typically used in these applications. The following pages contain the specifications for the part numbers recommended below. Once a device is selected, the user should evaluate and test each product for its intended application. PolySwitch Resettable evices Key evice Selection riteria Protection pplication dditional omments Installation Method Lowest Resistance Lowest Thermal ut-off Mobile phone battery packs NiMH ylindrical VLP20 VTP70 ( cell) lexprint minism90 Prismatic VLP270 VLR230 VTP20G LR4-260 Li-ion lexprint minism90 Surface Mount refer to Surface Mount section of this atabook Prismatic VLP270 VLR75 VTP20G ordless phone battery packs NiMH ylindrical VLP20 VTP70 SRP75 Mobile radio packs NiMH ylindrical LR4-380 LTP340 SRP350 omputer battery packs NiMH ylindrical LR4-900 Li-ion ylindrical LR4-40 Prismatic onsult local Rep onsult local Rep amcorder battery packs NiMH or Li-ion Prismatic VLP270 VTP20G LR4-380 P Li-ion Prismatic VLP220 VLR75 VTP75 Power tools (charge line) Nid or NiMH ylindrical custom LR4 custom VTP PolySwitch Resettable evices Table - Product Series - urrent Rating, Voltage Rating/Typical Resistance for Strap attery evices VLR VLP VTP LTP SRP LR4 minism Hold Typical ctivation Temperature urrent () V/0.5Ω.00 24V/0.Ω.0 6V/0.054Ω.20 5V/0.23Ω.70 2V/0.025Ω 6V/0.04Ω 5V/0.06Ω.75 2V/0.024Ω 6V/0.040Ω 5V/0.070Ω.80 24V/0.054Ω.90 24V/0.044Ω 5V/0.056Ω 6V/0.032Ω V/0.03Ω 30V/0.045Ω 2.0 6V/0.024Ω 6V/0.024Ω V/0.023Ω V/0.05Ω V/0.020Ω V/0.034Ω 5V/0.03Ω V/0.05Ω V/0.023Ω V/0.022Ω V/0.024Ω V/0.020Ω V/0.08Ω V/0.06Ω V/0.0Ω V/0.0Ω V/0.009Ω V/0.085Ω V/0.008Ω.00 20V/0.006Ω V/0.004Ω Strap attery evices 52

3 Table 2 - Thermal erating for Strap attery evices [Hold urrent () at mbient Temperature ( )] Part Number Maximum mbient Temperature mps 85 Typical ctivation VLR* VLR VLR70L VLR70U VLR VLR75L VLR75U VLR VLR VLR230U Typical ctivation VLP* VLP VLP Typical ctivation VTP* VTP VTP VTP70SS VTP70X VTP70XS VTP VTP75L VTP75U VTP200G VTP200U VTP20G VTP20S VTP20SL VTP20SS VTP Strap attery evices 0 Typical ctivation LTP LTP LTP070S LTP LTPS LTPSL LTPSS LTP LTP80L LTP80S LTP LTP LTP LTP minism minism * Product electrical characteristics determined at 25 53

4 Table 2 - Thermal erating for Strap attery evices [Hold urrent () at mbient Temperature ( )]... Maximum mbient Temperature Part Number mps 25 Typical ctivation LR4 LR4-70U LR LR4-90S LR LR4-260S LR LR4-380X LR LR LR LR4-600X LR LR4-880SS LR LR4-00SS SRP SRP SRP20L SRP20S SRP SRP75L SRP75S SRP75SS SRP SRP SRP ont'd PolySwitch Resettable evices igure - Thermal erating urve % of Rated Hold and Trip urrent = LR4 = SRP = LTP = VTP, VLP = VLR Strap attery evices Temperature ( ) 54

5 Table 3 - lectrical haracteristics for Strap attery evices I H I T V Max I Max P TYP Max. Time-to-trip R Min R TYP R Max R Tripped TYP R Max igure for Part Number () () (V ) () (W) () (s) (Ω) (Ω) (Ω) (Ω) (Ω) imension 85 Typical ctivation* VLR VLR VLR70L VLR70U VLR VLR75L VLR75U VLR VLR VLR230U Typical ctivation* VLP VLP VLP Typical ctivation* VTP VTP VTP VTP70X VTP70XS VTP VTP75L VTP75U VTP200G VTP200U VTP20G VTP20S VTP20SL VTP20SS VTP Strap attery evices 0 Typical ctivation LTP LTP LTP070S LTP LTPS LTPSL LTPSS LTP LTP80L LTP80S LTP LTP LTP LTP * Product electrical characteristics determined at 25 55

6 Table 3 - lectrical haracteristics for Strap attery evices... ont'd I H I T V Max I Max P TYP Max. Time-to-trip R Min R TYP R Max R Tripped TYP R Max igure for Part Number () () (V ) () (W) () (s) (Ω) (Ω) (Ω) (Ω) (Ω) imension minism minism Typical ctivation LR4 LR4-70U LR LR4-90S LR LR4-260S LR LR4-380X LR LR LR LR4-600X LR LR4-880SS LR LR4-00SS PolySwitch Resettable evices SRP SRP SRP20L SRP20S SRP SRP75L SRP75S SRP75SS SRP SRP SRP Notes: I H I T V MX I MX P R MIN R TYP R Trippped Typ R MX = Hold current: maximum current device will pass without interruption in 20 still air unless otherwise specified. = Trip current: minimum current that will switch the device from low resistance to high resistance in 20 still air unless otherwise specified. = Maximum voltage device can withstand without damage at rated current. = Maximum fault current device can withstand without damage at rated voltage. = Power dissipated from device when in the tripped state in 20 still air unless otherwise specified. = Minimum resistance of device as supplied at 20 unless otherwise specified. = Typical resistance of device as supplied at 20 unless otherwise specified. = Typical resistance, measured at 20 unless otherwise specified, of device one hour after being tripped the first time. = Maximum resistance of device as supplied at 20 unless otherwise specified. * = Product electrical characteristics determined at 25. = R max value for this device is the maximum resistance of the device at 20 one hour after reflow. Strap attery evices 56

7 igures imension igures for Strap attery evices igure 5 igure 6 igure 7 igure igure 2 igure igure 4 igure 5 igure 4 igure 0 igure 2 igure 8 igure 3 igure 9 Strap attery evices 57

8 Table 4 - imensions for Strap attery evices in Millimeters (Inches) imension Part Number Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. igure 85 Typical ctivation VLR VLR (0.82) (0.9) (0.03) (0.4) (0.5) (0.8) (0.26) (0.8) (0.26) (0.09) (0.0) VLR70L (.53) (.62) (0.03) (0.4) (0.5) (0.34) (0.4) (0.74) (0.80) (0.09) (0.0) VLR70U (0.8) (0.9) (0.03) (0.4) (0.5) (0.2) (0.26) (0.2) (0.26) (0.09) (0.0) VLR (0.9) (0.96) (0.03) (0.) (0.) (0.9) (0.28) (0.5) (0.2) (0.09) (0.0) VLR75L (.5) (.25) (0.03) (0.) (0.) (0.2) (0.27) (0.39) (0.49) (0.09) (0.0) VLR75U (0.9) (0.96) (0.03) (0.) (0.2) (0.20) (0.30) (0.7) (0.22) (0.09) (0.0) VLR (0.82) (0.9) (0.03) (0.9) (0.2) (0.6) (0.23) (0.6) (0.23) (0.5) (0.6) VLR (0.0) (.09) (0.03) (0.4) (0.5) (0.4) (0.22) (0.4) (0.22) (0.) (0.2) VLR230U (0.82) (0.9) (0.03) (0.9) (0.20) (0.6) (0.24) (0.6) (0.24) (0.5) (0.6) 90 Typical ctivation VLP VLP (0.83) (0.92) (0.02) (0.03) (0.) (0.5) (0.20) (0.27) (0.20) (0.27) (0.) (0.2) VLP (0.82) (0.9) (0.02) (0.03) (0.9) (0.2) (0.6) (0.23) (0.6) (0.23) (0.5) (0.6) 90 Typical ctivation VTP VTP (0.93) (.0) (0.03) (0.) (0.) (0.28) (0.32) (0.28) (0.32) (0.09) (0.0) VTP (0.606) (0.689) (0.02) (0.03) (0.275) (0.292) (0.57) (0.244) (0.57) (0.244) (0.5) (0.6) VTP70SS (0.606) (0.689) (0.02) (0.03) (0.275) (0.292) (0.57) (0.244) (0.57) (0.244) (0.54) (0.6) VTP70X (0.82) (0.90) (0.02) (0.03) (0.9) (0.2) (0.23) (0.34) (0.23) (0.34) (0.5) (0.6) VTP70XS (0.82) (0.90) (0.02) (0.03) (0.9) (0.2) (0.23) (0.34) (0.23) (0.34) (0.5) (0.6) VTP (0.83) (0.9) (0.03) (0.4) (0.5) (0.8) (0.26) (0.8) (0.26) (0.) (0.2) VTP75L (.02) (.) (0.03) (0.) (0.5) (0.22) (0.29) (0.34) (0.4) (0.09) (0.0) VTP75U (0.83) (0.9) (0.03) (0.) (0.5) (0.22) (0.27) (0.22) (0.27) (0.) (0.2) VTP200G (0.82) (0.9) (0.03) (0.6) (0.8) (0.) (0.9) (0.) (0.9) (0.) (0.2) VTP200U (0.82) (0.9) (0.03) (0.6) (0.7) (0.6) (0.2) (0.6) (0.2) (0.) (0.2) VTP20G (0.82) (0.9) (0.02) (0.03) (0.9) (0.2) (0.6) (0.23) (0.6) (0.23) (0.5) (0.6) VTP20S (0.82) (0.9) (0.02) (0.03) (0.9) (0.2) (0.6) (0.23) (0.6) (0.23) (0.5) (0.6) VTP20SL (.4) (.26) (0.02) (0.03) (0.9) (0.2) (0.) (0.23) (0.49) (0.57) (0.5) (0.6) VTP20SS (0.82) (0.9) (0.02) (0.03) (0.9) (0.2) (0.6) (0.23) (0.6) (0.23) (0.5) (0.6) VTP (0.93) (.03) (0.03) (0.9) (0.2) (0.) (0.23) (0.) (0.23) (0.5) (0.6) 0 Typical ctivation LTP LTP (0.783) (0.870) (0.027) (0.048) (0.92) (0.205) (0.26) (0.296) (0.26) (0.296) (0.53) (0.62) LTP070S (0.783) (0.870) (0.027) (0.048) (0.92) (0.205) (0.26) (0.296) (0.26) (0.296) (0.53) (0.62) LTP (0.82) (0.9) (0.02) (0.04) (0.9) (0.20) (0.6) (0.22) (0.6) (0.22) (0.5) (0.6) PolySwitch Resettable evices Strap attery evices 58

9 Table 4 - imensions for Strap attery evices in Millimeters (Inches)... ont'd Strap attery evices imension Part Number Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. igure 0 Typical ctivation LTP LTPS (0.82) (0.9) (0.02) (0.04) (0.9) (0.20) (0.6) (0.22) (0.6) (0.22) (0.5) (0.6) LTPSL (.4) (.26) (0.02) (0.04) (0.9) (0.20) (0.) (0.22) (0.49) (0.57) (0.5) (0.6) LTPSS (0.82) (0.9) (0.02) (0.04) (0.9) (0.20) (0.6) (0.22) (0.6) (0.22) (0.5) (0.6) LTP (0.94) (.02) (0.02) (0.04) (0.9) (0.20) (0.6) (0.22) (0.6) (0.22) (0.5) (0.6) LTP80L (.40) (.48) (0.02) (0.04) (0.9) (0.20) (0.38) (0.44) (0.38) (0.44) (0.5) (0.6) LTP80S (0.94) (.02) (0.02) (0.04) (0.9) (0.20) (0.6) (0.22) (0.6) (0.22) (0.5) (0.6) LTP (0.84) (0.92) (0.02) (0.04) (0.40) (0.43) (0.20) (0.30) (0.20) (0.30) (0.9) (0.2) LTP (0.94) (.02) (0.02) (0.04) (0.43) (0.47) (0.20) (0.28) (0.20) (0.28) (0.23) (0.24) LTP (.2) (.25) (0.02) (0.04) (0.5) (0.53) (0.25) (0.35) (0.25) (0.35) (0.24) (0.26) LTP (0.94) (.02) (0.02) (0.04) (0.58) (0.63) (0.6) (0.20) (0.6) (0.20) (0.23) (0.24) minism minism (0.439) (0.453) (0.0) (0.02) (0.9) (0.2) (0.02) (0.04) 25 Typical ctivation LR4 LR4-70U (0.75) (0.83) (0.02) (0.03) (0.5) (0.6) (0.2) (0.26) (0.2) (0.26) (0.) (0.2) LR (0.78) (0.87) (0.02) (0.04) (0.9) (0.22) (0.22) (0.30) (0.22) (0.30) (0.5) (0.6) LR4-90S (0.78) (0.87) (0.02) (0.04) (0.9) (0.22) (0.22) (0.30) (0.22) (0.30) (0.5) (0.6) LR (0.82) (0.9) (0.02) (0.04) (0.9) (0.22) (0.6) (0.22) (0.6) (0.22) (0.5) (0.6) LR4-260S (0.82) (0.9) (0.02) (0.04) (0.9) (0.22) (0.6) (0.22) (0.6) (0.22) (0.5) (0.6) LR (0.94) (.02) (0.02) (0.04) (0.27) (0.30) (0.6) (0.22) (0.6) (0.22) (0.9) (0.20) LR4-380X (.27) (.4) (0.02) (0.04) (0.9) (0.22) (0.22) (0.30) (0.22) (0.30) (0.5) (0.6) LR (0.94) (.02) (0.02) (0.04) (0.4) (0.39) (0.2) (0.26) (0.2) (0.26) (0.23) (0.24) LR (.38) (.46) (0.02) (0.04) (0.27) (0.30) (0.2) (0.26) (0.2) (0.26) (0.9) (0.20) LR (0.95) (.02) (0.02) (0.04) (0.55) (0.57) (0.6) (0.22) (0.6) (0.22) (0.23) (0.24) LR4-600X (.59) (.68) (0.02) (0.04) (0.27) (0.30) (0.20) (0.27) (0.20) (0.27) (0.9) (0.20) LR (.06) (.5) (0.02) (0.04) (0.54) (0.57) (0.6) (0.22) (0.6) (0.22) (0.23) (0.24) LR4-880S (2.47) (2.57) (0.02) (0.04) (0.3) (0.33) (0.39) (0.47) (0.39) (0.47) (0.23) (0.24) LR (.79) (.87) (0.04) (0.05) (0.3) (0.33) (0.8) (0.24) (0.8) (0.24) (0.23) (0.24) LR4-00SS (0.42) (2.62) (0.04) (0.05) (0.37) (0.39) (0.20) (0.30) (0.20) (0.30) (0.23) (0.24) SRP SRP (0.78) (0.87) (0.02) (0.04) (0.9) (0.20) (0.22) (0.30) (0.22) (0.30) (0.5) (0.6) SRP20L (0.98) (.07) (0.02) (0.04) (0.9) (0.20) (0.22) (0.30) (0.4) (0.49) (0.5) (0.6) SRP20S (0.78) (0.87) (0.02) (0.04) (0.9) (0.20) (0.22) (0.30) (0.22) (0.30) (0.5) (0.6) SRP (0.82) (0.9) (0.02) (0.04) (0.9) (0.20) (0.6) (0.22) (0.6) (0.22) (0.5) (0.6) 59

10 Table 4 - imensions for Strap attery evices in Millimeters (Inches) imension Part Number Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. igure SRP SRP75L (.8) (.26) (0.02) (0.04) (0.9) (0.20) (0.22) (0.30) (0.4) (0.49) (0.5) (0.6) SRP75S (0.82) (0.9) (0.02) (0.04) (0.9) (0.20) (0.6) (0.22) (0.6) (0.22) (0.5) (0.6) SRP75SS (0.82) (0.9) (0.02) (0.04) (0.9) (0.20) (0.6) (0.22) (0.6) (0.22) (0.5) (0.6) SRP (0.84) (0.92) (0.02) (0.04) (0.40) (0.43) (0.20) (0.30) (0.20) (0.30) (0.9) (0.2) SRP (.2) (.25) (0.02) (0.04) (0.53) (0.5) (0.25) (0.35) (0.25) (0.35) (0.24) (0.26) SRP (.20) (.28) (0.02) (0.04) (0.5) (0.54) (0.20) (0.30) (0.20) (0.30) (0.24) (0.26)... ont'd PolySwitch Resettable evices igures Typical Time-to-trip urves at 20 for Strap attery evices VLR (data at 25 ) = VLR70 = VLR75 = VLR230 igure 6 0 Time-to-trip (s) ault urrent () VLP (data at 25 ) = VLP20 = VLP220 = VLP270 igure 7 Time-to-trip (s) 0 0. Strap attery evices ault urrent () 60

11 igures Typical Time-to-trip urves at 20 for Strap attery evices... ont'd VTP (data at 25 ) = VTP70 igure 8 = VTP75 = VTP200 = VTP20G = VTP240 Time-to-trip (s) ault urrent () LTP = LTP070 igure 9 = LTP = LTP80 = LTP90 0 G = LTP260 = LTP300 G = LTP340 Time-to-trip (s) 0. G ault urrent () Strap attery evices LR4 = LR4-70U = LR4-90 = LR4-260 = LR4-380 = LR4-450 = LR4-550 G = LR4-600 H = LR4-730 I = LR4-880 igure 20 Typical time-to-trip (s) 0 0. G H J H L K I G L K J I J = LR4-900 K = LR L = LR4-40 ault urrent () 6

12 igures Typical Time-to-trip urves at 20 for Strap attery evices SRP = SRP20 = SRP75 = SRP200 = SRP350 = SRP420 igure 2 Typical time-to-trip (s) ault urrent ()... ont'd PolySwitch Resettable evices minism = minism90 igure 22 0 Typical time-to-trip (s) ault urrent () Table 5 - Physical haracteristics and nvironmental Specifications for Strap attery evices VLR Physical haracteristics Lead material Tape material VLR nvironmental Specifications 0.25mm nominal thickness, quarter-hard nickel Polyester Test onditions Resistance hange Passive aging -40, 0 hours ±5% 60, 0 hours ±20% Humidity aging 60 /95% RH, 0 hours ±30% Thermal shock 85, -40 (0 times) ±5% Vibration MIL-ST-883, Method 2026 No change Strap attery evices 62

13 Table 5 - Physical haracteristics and nvironmental Specifications for Strap attery evices... ont'd VLP and VTP Physical haracteristics Lead material Tape material 0.25mm nominal thickness, quarter-hard nickel Polyester VLP and VTP nvironmental Specifications Test onditions Resistance hange Passive aging -40, 0 hours ±5% 60, 0 hours ±0% Humidity aging 60 /95% RH, 0 hours ±0% Thermal shock 85, -40 (0 times) ±5% Vibration MIL-ST-883, Method 2026 No change LTP Physical haracteristics Lead material Tape material 0.25mm nominal thickness, quarter-hard nickel Polyester LTP nvironmental Specifications Test onditions Resistance hange Passive aging 70, 0 hours ±0% Humidity aging 85 /85% RH, 7 days ±5% Vibration MIL-ST-883, Test ondition No change LR4 Physical haracteristics Lead material Tape material 0.25mm nominal thickness, quarter-hard nickel Polyester LR4 nvironmental Specifications Strap attery evices Test onditions Resistance hange Passive aging 70, 0 hours ±0% Humidity aging 85 /85% RH, 7 days ±5% Vibration MIL-ST-883, Method 2026 No change SRP Physical haracteristics Lead material Tape material SRP nvironmental Specifications 0.25mm nominal thickness, quarter-hard nickel Polyester Test onditions Resistance hange Passive aging 70, 0 hours ±0% Humidity aging 85 /85% RH, 7 days ±5% Vibration MIL-ST-883, Test ondition No change 63

14 Table 5 - Physical haracteristics and nvironmental Specifications for Strap attery evices minism Physical haracteristics Termination pad materials Solder-plated copper Termination pad solderability Meets I specification RS86-9, NSI/J-ST-002 ategory 3 minism nvironmental Specifications Test onditions Resistance hange Passive aging 60, 0 hours ±5% typical 85, 0 hours ±5% typical Humidity aging 85 /85% RH, days ±5% typical Thermal shock 85, -40 (20 times) -33% typical 25, -55 (0 times) -33% typical Vibration MIL-ST-883, Method 2026 No change Reflow conditions 260 for 0-20 seconds Less than R Tape and reel specifications Per I 48- N/ Note: Storage conditions: 40 max., 70% RH max.; devices should remain in original sealed bags prior to use. evices may not meet specified values if these storage conditions are exceeded.... ont'd PolySwitch Resettable evices Table 6 - Packaging and Marking Information/gency Recognition for Strap attery evices Part Number ag Quantity Tape & Reel Quantity Standard Package Part Marking gency Recognition 85 Typical ctivation VLR VLR70,000 0,000 R7 UL, S,TÜV VLR70L,000 0,000 R7 UL, S,TÜV VLR70U,000 0,000 UL, S,TÜV VLR75,000 0,000 RX UL, S,TÜV VLR75L,000 0,000 RX UL, S,TÜV VLR75U,000 0,000 UL, S,TÜV VLR230,000 0,000 R23 UL, S,TÜV VLR230-36,000 0,000 R23 UL, S,TÜV VLR230U,000 0,000 UL, S,TÜV 90 Typical ctivation VLP VLP220,000 0,000 W22 UL, S, TÜV VLP270,000 0,000 W27 UL, S, TÜV 90 Typical ctivation VTP VTP0,000 0,000 UL, S, TÜV VTP70,000 0,000 V7 UL, S, TÜV VTP70SS,000 0,000 V7 UL, S, TÜV VTP70X,000 0,000 V7 UL, S, TÜV VTP70XS,000 0,000 V7 UL, S, TÜV VTP75,000 0,000 VX UL, S, TÜV VTP75U,000 0,000 UL, S, TÜV VTP75L,000 0,000 VX UL, S, TÜV VTP200G,000 0,000 V20 UL, S, TÜV VTP200U,000 0,000 UL, S, TÜV VTP20G,000 0,000 V2 UL, S, TÜV VTP20GU,000 0,000 UL, S, TÜV VTP20S,000 0,000 V2 UL, S, TÜV VTP20SL,000 0,000 V2 UL, S, TÜV VTP20SS,000 0,000 V2 UL, S, TÜV VTP240,000 0,000 V24 UL, S, TÜV Strap attery evices 64

15 Table 6 - Packaging and Marking Information/gency Recognition for Strap attery evices... ont'd Part Number ag Quantity Tape & Reel Quantity Standard Package Part Marking gency Recognition Strap attery evices 0 Typical ctivation LTP, minism LTP070 2,000 0,000 L07 UL, S, TÜV LTP070S 2,000 0,000 L07 UL, S, TÜV LTP 2,000 0,000 L0 UL, S, TÜV LTPS 2,000 0,000 L0 UL, S, TÜV LTPSL 2,000 40,000 L0 UL, S, TÜV LTPSS 2,000 0,000 L0 UL, S, TÜV LTP80 2,000 0,000 L8 UL, S, TÜV LTP80L 500 0,000 L8 UL, S, TÜV LTP80S 2,000 0,000 L8 UL, S, TÜV LTP ,000 L9 UL, S, TÜV LTP260,000 0,000 L26 UL, S, TÜV LTP ,000 L30 UL, S, TÜV LTP ,000 L34 UL, S, TÜV minism90-2 5,000 5,000 9 UL, S, TÜV 25 Typical ctivation LR4, SRP LR4-70U 2,000 0,000 N UL, S, TÜV LR4-90 2,000 0,000 9 UL, S, TÜV LR4-90S 2,000 0,000 9 UL, S, TÜV LR4-260,000 0, UL, S, TÜV LR4-260S,000 0, UL, S, TÜV LR4-380,000 0, UL, S, TÜV LR4-380X,000 0,000 3X UL, S, TÜV LR4-450,000 0, UL, S, TÜV LR4-550,000 0, UL, S, TÜV LR4-600,000 0, UL, S, TÜV LR4-600X,000 0, UL, S, TÜV LR4-730,000 0, UL, S, TÜV LR4-73X 500 0,000 7X UL, S, TÜV LR4-880SS 250 8, (UL, S, TÜV pending) LR , UL, S, TÜV LR4-00SS 250 0,000 X3 UL, S, TÜV SRP20 2,000 0, UL, S, TÜV SRP20L,000 0, UL, S, TÜV SRP20S 2,000 0, UL, S, TÜV SRP75 2,000 0, UL, S, TÜV SRP75L,000 0, UL, S, TÜV SRP75S 2,000 0, UL, S, TÜV SRP75SS 2,000 0, UL, S, TÜV SRP , UL, S, TÜV SRP , UL, S, TÜV SRP , UL, S, TÜV Installation Guidelines for the Strap amily Polymeric PT devices operate by thermal expansion of the conductive polymer. If devices are placed under pressure or installed in spaces that would prevent thermal expansion, they may not properly protect against fault conditions. esigns must be selected in such a manner that adequate space is maintained over the life of the product. Twisting, bending, or placing the Polymeric PT device in tension will decrease the ability of the device to protect against electrical faults. No residual force should remain on device after installation. Mechanical damage to Polymeric PT chip may affect device performance and should be avoided. hemical contamination of Polymeric PT devices should be avoided. ertain greases, solvents, hydraulic fluids, fuels, industrial cleaning agents, volatile components of adhesives, silicones, and electrolytes can have an adverse effect on device performance. Polymeric PT strap devices are designed to be resistance welded to battery cells or to pack interconnect straps, yet some precautions must be taken when doing so. In order for the Polymeric PT device to exhibit its specified performance, weld placement should be a minimum of 2mm from the edge of the Polymeric PT chip, weld splatter must not touch the Polymeric PT chip, and welding conditions must not heat the Polymeric PT device above its maximum operating temperature. Polymeric PT strap devices are not designed for applications where reflow onto flex circuits or rigid circuit boards is required. The polyester tape on PolySwitch strap devices is intended for marking and indentification purposes only, not for electrical insulation. 65

16 gency Recognition for Strap attery evices UL ile # S ile # 7865 TÜV ertificate number available on request Part Numbering System for Strap attery evices LTP 90 SS Modifier = Lead-free version G = Global design (standard product) L = Long lead or leads S = Slit lead SS = oth leads slit X = Rotated chip U = Untaped Hold urrent Indicator Product series PolySwitch Resettable evices VTP 20 SL 9.2/ /5.8 = Maximum length of leads (mm) Modifier = Lead-free version G = Global design (standard product) L = Long lead or leads S = Slit lead SS = oth leads slit X = Rotated chip U = Untaped Hold urrent Indicator Product series WRNING: Operation beyond the maximum ratings or improper use may result in device damage and possible electrical arcing and flame. The devices are intended for protection against occasional overcurrent or overtemperature fault conditions and should not be used when repeated fault conditions or prolonged trip events are anticipated. ontamination of the PPT material with certain silicon based oils or some aggressive solvents can adversely impact the performance of the devices. evice performance can be impacted negatively if devices are handled in a manner inconsistent with recommended electronic, thermal, and mechanical procedures for electronic components. Operation in circuit with a large inductance can generate a circuit voltage (L di/ dt ) above the rated voltage of the PolySwitch resettable device. Strap attery evices 66