| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
108 pcs
|
108 pcs | On Request | 1 | On Request | On Request | 11+ | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Applications | |
| Current | |
| ESD Protection | |
| Forward Voltage | |
| Lead Style | |
| Mounting Type | |
| Operating Temperature | |
| Peak Forward Surge Current | |
| Power | |
| Power Line Protection | |
| SVHC Present | |
| Storage Temperature | |
| Supplier Device Package | |
| Tape & Reel | |
| Type | |
| Unidirectional Channels | |
| Voltage |
The SMAJ18A is a 400W unidirectional transient voltage suppressor diode from Bourns, designed to protect sensitive electronics from voltage transients induced by lightning, ESD, and other surge events. It features a reverse standoff voltage of 18V and a clamping voltage of 29.2V at a peak pulse current of 13.7A.
This device offers a typical response time of less than 1.0 ps from 0V to minimum breakdown voltage, making it suitable for high-speed signal line protection. It complies with IEC 61000-4-2 ESD (Level 4), IEC 61000-4-4 EFT, and IEC 61000-4-5 surge standards, and is UL recognized under file E153537.
The SMAJ18A is housed in a compact DO-214AC (SMA) surface mount package, which is compatible with standard pick-and-place equipment. It operates over a junction temperature range of -55°C to +150°C and has a maximum steady state power dissipation of 1.0W at 75°C lead temperature.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.52 | $0.52 |
| 10+ | $0.32 | $0.32 |
| 100+ | $0.20 | $0.20 |
| 500+ | $0.15 | $0.15 |
| 1,000+ | $0.14 | $0.14 |
| 2,000+ | $0.12 | $0.12 |
| 5,000+ | $0.11 | $0.11 |
| 10,000+ | $0.10 | $0.10 |
| 15,000+ | $0.09 | $0.09 |
| 25,000+ | $0.09 | $0.09 |
| 35,000+ | $0.08 | $0.08 |
| 50,000+ | $0.08 | $0.08 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The reverse standoff voltage is 18V.
The clamping voltage is 29.2V at a peak pulse current of 13.7A.
The SMAJ18A is available in a DO-214AC (SMA) surface mount package.
The minimum peak pulse power dissipation is 400W for a 1 ms pulse.
The operating junction temperature range is -55°C to 150°C.