Outlines
- With small size, contributing to mount space saving in power supply circuits in ECU
- Conforming to load dump surge test of JASO A-1, ISO7637-2
- Conforming to AEC Q-200
- Conforming to ISO/TS16949
- Achieving high reliability suitable for in-vehicle installation
High temperature load: 2000hours at125℃
Heat cycle： within the range of -40 to 125℃ - Applicable to flow, reflow and hand soldering
Examples
Various usage in ECU
Control mechanism
・ Load dump surge is generated when the battery line is disconnected while the alternator is generating power. →Bypass the surge current to the GND to protect ECU
Characteristics of products
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Appearance /Structure
Molded with resin
Absorb large energy with small body
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Basic characteristic
The characteristics:
same as Zener diode and having no polarity
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Replacing TVS with Varistor
Contributing to the reduction in size and weight of ECU
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Characteristics of products JASO A-1 test (P/N：ERZHF2M220D)
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Characteristics of products ISO7637-2 test
■Test Pulse 5a (12V system)
Elemental technology
Increasing effective volume and surge tolerance realizes
miniaturization and weight reduction of components.
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Zener diode
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ＥＲＺＨＦ2Ｍ220Ｄ
Product Specifications
| Parts No. | Varistor Voltage V1mA (V) |
Maximum Allowable Voltage DC (V) |
Short Time Over-voltage |
Clamping Voltage Ip 5(A) (V) |
Load Dump Surge |
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|---|---|---|---|---|---|---|---|---|---|---|---|
| ERZHF2M220D | 20～ 23.2 | 16 | DC24(V) 5 min. | 35(V) max. | JASO A Category: A-1 70 V, 1 time |
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| ERZHF2M270 | 27±20 % | 43(V) max. |
