"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. Recommended Applications Note: Ask our factory for Product Specification before use. 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 RoHS compliant Minimum Quantity / Packing Unit Please see Related Information Explanation of Part Numbers 1 2 3 4 & 3 ; " Product Code 5 Series 6 Element Size 7 8 1 , 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 Energy Peak Current (2 ms, 1 time) (8/20 s, 2 times) Typical Capacitance (Reference) V1 mA (V) ACrms (V) DC (V) V100 A (V) (A) (J) at 1 kHz (pF) ERZA20PK251 25010 % 130 180 410 5000 90 1200 ERZA20PK501 50010 % 260 360 825 5000 150 600 ERZA20PK102 100010 % 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. 01 Aug. 2012 - 57 - "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) .BY-FBLBHF$VSSFOU .BY$MBNQJOH7PMUBHF 4000 3000 2000 Voltage (V) 1, 1000 900 800 700 600 &3;" 1, ;" &3 400 1, ;" &3 1, &3;" 300 200 1, &3;" 500 1, ;" &3 100 90 80 70 60 10-6 Test Current Waveform 10-6 to 10-3 A: Direct Current 10-1 to 104 A: 8/20 s 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. 01 Aug. 2012 - 58 -