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| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
5,370 pcs
|
5370 pcs | On Request | 1 | On Request | On Request | On Request | On Request | 2026-02-16 21:33:16 |
| Category | |
| Manufacturer Name | |
| AEC Qualified | |
| AEC-Q101 | |
| Applications | |
| Automotive Grade | |
| Breakdown Voltage (Minimum/Maximum) | |
| Current | |
| Halogen Free | |
| Industrial Grade | |
| Mounting Type | |
| Operating Temperature | |
| Peak Forward Surge Current | |
| Power | |
| Power - Steady State | |
| Power Line Protection | |
| Storage Temperature | |
| Supplier Device Package | |
| Tape & Reel | |
| Terminals | |
| Type | |
| Unidirectional Channels | |
| Voltage | |
| Voltage - Reverse Standoff (Typ) |
The SMAJ550HM3_B/H is a surface-mount unidirectional Transient Voltage Suppressor (TVS) diode from Vishay, part of the TRANSZORB family. It is designed to protect sensitive electronic circuits from voltage transients induced by inductive load switching, lightning, and other surge events.
Key electrical specifications include a typical reverse standoff voltage of 495 V, a breakdown voltage range of 530 V (minimum) to 550 V (maximum), and a maximum clamping voltage of 760 V at a peak pulse current of 400 mA (10/1000 µs waveform). The device can handle a peak pulse power of 300 W and a steady-state power dissipation of 2.5 W. Operating junction temperature can reach up to 150 °C.
This TVS diode features a glass passivated chip junction, very fast response time, and low incremental surge resistance. It is suitable for use in automotive, industrial, consumer, and telecommunication applications where reliable transient protection is required. The HM3 suffix indicates AEC-Q101 qualification for automotive applications.
The component is housed in a DO-214AC (SMA) surface-mount package with matte tin plated leads. It meets MSL level 1 and is halogen-free (M3 suffix coding).
| Qty | Low | High |
|---|---|---|
| 1+ | $0.91 | $0.91 |
| 10+ | $0.56 | $0.56 |
| 100+ | $0.37 | $0.37 |
| 500+ | $0.28 | $0.28 |
| 1,000+ | $0.25 | $0.25 |
| 1,800+ | $0.22 | $0.22 |
| 3,600+ | $0.21 | $0.21 |
| 9,000+ | $0.20 | $0.20 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
495 V typical.
530 V minimum to 550 V maximum.
760 V at 400 mA peak pulse current.
400 mA for a 10/1000 µs waveform.
DO-214AC (SMA) surface mount package.
Yes, the HM3 suffix indicates AEC-Q101 qualification.
Maximum junction temperature is 150°C; operating range is -55°C to 150°C.