Surge protective device module (SPD-M) is an onboard lightning protection module that integrates functions, such as thermal protection, overvoltage protection, and remote signaling, and others. A single module can meet common-mode, differential-mode or full-mode protection requirements.SPD-M, an integrated solution, can simplify the design and selection of surge protection modules for users, and is suitable for surge protection of low-voltage AC or DC power supply equipment. Surge protective device module (SPD-M) has the characteristics of small board space, high level of integration, and complete protection functions and solutions.
● Telecom Equipment
● AC / DC Power Supply
● Uninterruptable Power Supply (UPS)
● Surge Protective Device (SPD)
● Embedded power supply
● Telecom Power Supply
8/20 Current Impulse
Current impulse with a nominal virtual front time of 8 µs and a nominal time to half-value of 20 µs. ---- IEC 61643-11
1.2/50 Voltage Impulse
Voltage impulse with a nominal virtual front time of 1.2 µs and a nominal time to half-value of 50 µs. ---- IEC 61643-11
Maximum Continuous Operating Voltage
Maximum r.m.s. voltage, which may be continuously applied to the SPD's mode of protection. ---- IEC 61643-11
Nominal Discharge Current
Crest value of the current through the SPD having a current waveshape of 8/20 µs. ---- IEC 61643-11
Impulse Discharge Current for Class I Test
Crest value of a discharge current through the SPD with specified charge transfer Q and specified energy W/R in the specified time.
---- IEC 61643-11
Maximum Discharge Current
Crest value of a current through the SPD having an 8/20 µs waveshape and magnitude according to the manufacturers specification. Imax is equal to or greater than In. ---- IEC 61643-11
Modes of protection
An intended current path, between terminals that contains protective components, e.g. line-to-line, line-to-earth, line-to-neutral, neutral-to-earth. ---- IEC 61643-11
Voltage Protection Level
Maximum voltage to be expected at the SPD terminals due to an impulse stress with defined voltage steepness and an impulse stress with a discharge current with given amplitude and wave shape. ---- IEC 61643-11
Short Circuit Current Rating
The suitability of an SPD for use on an AC power circuit that is capable of delivering not more than a declared rms symmetrical current at a declared voltage during a short circuit condition. ----UL 1449
A non-resettable device incorporating a THERMAL ELEMENT which will open a circuit once only when exposed for a sufficient length of time to a temperature in excess of that for which it has been designed. ----IEC 60691
Alloy Type Thermal-Link, Alloy is the thermal element.
1. Frequency range is from 47 Hz to 63 Hz.
2. The voltage applied continuously to the SPD module must not exceed its maximum continuous operating voltage Uc.
3. When atmosphere press is from 80 kPa to 106 kPa, the related altitude shall be from 2000 meters to - 500 meters.
4. Do not touch the product body or pins directly when power is on, to avoid electric shock.
As SPD module is a non-repairable product, for safety sake, please use the same type of SPD module for replacement.
Do not store SPD module at high temperature, high humidity or corrosive gas environment, to avoid oxidation of the lead wires. Use them up within 1 year after receiving the goods.
Do not install SPD module to the place that may suffer severe vibration.
Recommended Hand-Soldering Parameters
The wave soldering parameters are for reference only. Before SPD module is for practice usage, relative validation is recommended.