“ZNR” Transient/Surge Absorbers (Type P) “ZNR” Transient/Surge Absorbers Type : P ZNR Transient/Surge Absorber, Type P is a suitable device to protect various electric equipment and semiconductive devices from instantaneous over-voltages like switching surges and induced lightnings. The Type P is characterized by the unique construction of plug-in type with a deterioration indicator. ● RoHS compliant Recommended Applications Protection of semiconductor devices used for the electronic equipment includes: ● Broadcasting, communication equipment ● Traffic or railroad systems ● Automatic control devices for power distribution ● Waterworks ● Protection of motor coils, vacuum switches ■ As for Minimum Quantity / Packing Unit Please see Related Information Explanation of Part Numbers 1 2 3 4 E R Z A Product Code 5 Series 6 Element Size 7 8 P K Type Tolerance 9 10 11 Nominal Varistor Voltage 12 Design No. Ratings and Characteristics ● ● Operating Temperature Range : –25 to 70 °C Storage Temperature Range : –25 to 70 °C Part No. Varistor Voltage Maximum Allowable Voltage Maximum Clamping Voltage Maximum Peak Current (8/20 µs, 2 times) Energy (2 ms, 1 time) Typical Capacitance (Reference) V1 mA (V) ACrms (V) DC (V) V100 A (V) (A) (J) at 1 kHz (pF) ERZA20PK251 250±10 % 130 180 410 5000 90 1200 ERZA20PK501 500±10 % 260 360 825 5000 150 600 ERZA20PK102 1000±10 % 520 730 1650 5000 240 300 Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately. 03 Aug. 2015 “ZNR” Transient/Surge Absorbers (Type P) Dimensions in mm (not to scale) f 30 47 3 78 88 NP f9 66 Mounting pitch 16 7 Mounting hole f 4.5 M4 Life indicator Typical Characteristics Voltage vs. Current (ERA20PK251 to ERZA20PK102) Max. Leakage Current Max. Clamping Voltage 4000 3000 2000 Voltage (V) PK102 1000 900 800 700 600 ERZA20 102 0PK ZA2 ER 0PK501 ERZA2 500 400 501 0PK ZA2 ER 200 251 0PK ZA2 ER 1 0PK25 ERZA2 300 100 90 80 70 60 10-6 Test Current Waveform 10-6 to 10-3 A: Direct Current 10-1 to 104 A: 8/20 µs 10-5 10-4 10-3 10-2 10-1 1 10 102 103 104 105 Current (A) Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately. 03 Aug. 2015