“ZNR” Transient/Surge Absorbers (Type D) Performance Characteristics (Series E) Characteristics Test Methods/Description Specifications Standard Test Condition Electrical measurements (initial/after tests) shall be conducted at temperature of 5 to 35 °C, relative humidity of maximum 85 % ——— Varistor Voltage The voltage betwen two terminals with the specified measuring current 1mA DC applied is called V1 or V1mA. The measurement shall be made as fast as possible to avoid heat affection. Maximum Allowable Voltage The maximum sinusoidal RMS voltage or maximum DC voltage that can be applied continuously. The maximum voltage between two terminals with the specified standard impulse current (8/20 µs) illustrated below applied. Clamping Voltage Current(%) 100 90 50 10 0 8 µs Rated Power Maximum Energy 20 µs Time To meet the specified value. The power that can be applied in the specified ambient temperature. The maximum energy within the varistor voltage change of ±10 % when a single impulse current of 2 ms or 10/1000 µs is applied. Electrical The maximum current within the varistor voltage change of ±10 % Maximum 2 times when a standard impulse current of 8/20 µs is applied two times Peak with an interval of 5 minutes. Current (Withstanding The maximum current within the varistor voltage change of ±10 % Surge 1 time with a single standard impulse current of 8/20 µs is applied. Current) Temperature Coef ficient of Varistor Voltage Capacitance V1mA at 85 °C – V1mA at 25 °C 1 × × 100 (%/°C) 60 V1mA at 25 °C Capacitance shall be measured at 1 kHz ±10 %, 1 Vrms max. (1 MHz ±10 % below 100 pF), 0 V bias and 20±2 °C. 0 to -0.05 %/°C max. To meet the specified value AC 1500 Vrms shall be applied between both terminals of the Withstanding Voltage specimen connected together and metal foil closely wrapped No breakdown (Body Insulation) round its body for 1 minute. The change of VC shall be measured after the impulse current listed below is applied 10000 or 100000 times continuously with the interval of 10 seconds at room temperature. Impulse Life Item Times Part No. Current ERZE05A201 to ERZE05A471 ERZE07A201 to ERZE07A621 ERZE08A201 to ERZE08A751 ERZE10A201 to ERZE10A112 ERZE11A201 to ERZE11A112 ERZE14A201 to ERZE14A112 Impulse Life (I) Impulse Life (II) 4 5 ×10 Times ×10 Times Impulse Current 50 A (8/20 µs) 35 A (8/20 µs) 100 A (8/20 µs) 70 A (8/20 µs) 150 A (8/20 µs) 85 A (8/20 µs) 170 A (8/20 µs) 90 A (8/20 µs) 200 A (8/20 µs) 110 A (8/20 µs) 250 A (8/20 µs) 120 A (8/20 µs) ΔV1mA/V1mA < 0 to 20 % 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. 04 Jan. 2015 “ZNR” Transient/Surge Absorbers (Type D) Performance Characteristics (Series E) Characteristics Test Methods Robustness of Terminations (Bending) The unit shall be secured with its terminal kept vertical and the force specified below shall be applied in the axial direction. The terminal shall gradually be bent by 90 ° in one direction, then 90 ° No remarkable in the opposite direction, and again back to the original position. mechanical damage The damage of the terminal shall be visually examined. Terminal diameter Force 4.9 N 00.6 mm 4.9 N 00.8 mm 9.8 N 01.0 mm Vibration After repeadly applying a single harmonic vibration (amplitude: 0.75 mm, double amplitude: 1.5 mm) with 1 minute vibration frequency cycles (10 Hz to 55 Hz to 10 Hz) to each of three perpendicular directions for 2 hours. Thereafter, the unit shall be visually examined. Solderability After dipping the terminals to a depth of approximately 3 mm from the body in a soldering bath of 235±5°C for 2±0.5 seconds, the terminal shall be visually examined. Resistance to Soldering Heat After each lead shall be dipped into a solder bath having a temperature of 260±5 °C to a point 2.0 to 2.5 mm from the body of the unit, using ΔV1mA/V1mA < ±5 % shielding board (t=1.5 mm), be held there for 10±1 s and then be stored No remarkable at room temperature and normal humidity for 1 to 2 hours. The change mechanical damage of VCmA and mechanical damages shall be examined. High Temperature Storage/ Dry Heat The specimen shall be subjected to 125±2 °C for 1000 hours in a thermostatic bath without load and then stored at room temperature ΔV1mA/V1mA < ±5 % and normal humidity for 1 to 2 hours. Thereafter, the change of VCmA shall be measured. Humidity The specimen shall be subjected to 40±2 °C, 90 to 95 % RH for 1000 hours without load and then stored at room temperature and ΔV1mA/V1mA < ±5 % normal humidity for 1 to 2 hours. Thereafter, the change of VCmA shall be measured. Mechanical Robustness of Terminations (Tensile) After gradually applying the force specified below and keeping the unit fixed for 10 seconds, the terminal shall be visually examined for any damage. Terminal diameter Force 9.8 N 00.6 mm 9.8 N 00.8 mm 19.6 N 01.0 mm The temperature cycle shown below shall be repeated five cycles and then stored at room temperature and normal humidity for 1 to 2 hours. The change of VCmA and mechanical damage shall be examined. Environmental Specifications Temperature Cycle Step 1 2 3 4 Temperature (°C) Period (minutes) –40±3 30±3 Room temperature 15±3 125±2 30±3 Room temperature 15±3 Approximately 95 % of the termainals shall be covered with new solder uniformly. ΔV1mA/V1mA < ±5 % No remarkable mechanical damage High Temperature Load/ Dry Heat Load After being continuously applied the Maximum Allowable Voltage at 85±2 °C for 1000 hours, the specimen shall be stored at room temperature and normal humidity for 1 to 2 hours. Thereafter, the change of VCmA shall be measured. Damp Heat Load/ Humidity Load The specimen shall be subjected to 40±2 °C, 90 to 95 % RH and the Maximum Allowable Voltage for 1000 hours and then stored at room temperature and normal humidity for 1 to 2 hours. Thereafter, the change of VCmA shall be measured. Low Temperature Storage/Cold The specimen shall be subjected to –40±2 °C without load for 1000 hours and then stored at room temperature and normal humidity for ΔV1mA/V1mA < ±5 % 1 to 2 hours. Thereafter, the change of VCmA shall be measured. ΔV1mA/V1mA < ±10 % 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. 04 Jan. 2015