
1N4148
1N4148 Switching Diode
High-speed switching diode with short reverse recovery time, ideal for signal detection and logic protection.
- SOD-123
- Signal Detection / Logic Circuits / High-Speed Switching
- Diode

Product Description
The 1N4148 is a classic high-speed switching diode with a reverse recovery time of just 4ns. Its compact SOD-123 package makes it ideal for high-density layouts. Commonly used for signal detection, clamping, and logic circuit protection.
Specifications
| Reverse Voltage | 100 V |
|---|---|
| Forward Current | 200 mA |
| Package Form | SOD-123 |
| Reverse recovery time | 4 ns |
| Operating Temperature Range | -65 ℃ ~ +175 ℃ |
The parameters shown represent general category ranges. Actual supply shall be based on the specification confirmed at the time of order.
Supply Notes
- Supports both small-batch and bulk supply
- Can be bundled with other diodes.
- Samples available for standard models.
Alternative Models
The following models are compatible alternatives with similar specifications or pinouts. Please verify details in the datasheet.
This table includes series-level reference items. Please confirm package, ratings, and fuse characteristics with engineering before bulk procurement.
1N148WS
- Package
- —
- Rating
- —/ —
High-speed switching diode, SOD-323 package, identical specifications
BAV99
- Package
- —
- Rating
- —/ —
Dual-channel switch diode, SOT-23 package; replaces single-channel applications
1N148W
- Package
- —
- Rating
- —/ —
High-speed switching diode, SOD-123 package, pin-compatible
Alternative models are for reference only. Confirm actual selection based on application requirements and datasheets. For further suggestions, submit an inquiry.
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