Diodes Incorporated 1N4148
1N4148 variants from Diodes Incorporated
1N4148 Overview
What changes between part numbers, and what to check before you lock the BOM — Rectifier Diodes.
Key Features
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
- 12 distinct suffix patternsExamples: W-13-F, W-7-F, WQ-13-F, WQ-7-F, WS-13-F (+7 more). Decode suffix meaning in the ordering notes under the variant table.
Target Applications
- Rectifier Diodes — design-in and field replacement
- BOM scrub where only the base prefix is known but suffix is TBD
- Second-source checks when the original MPN is constrained
Ordering Variants
Compare 12 1N4148 part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|
| 1N4148W-13-F | DIODE GEN PURP 100V 300MA SOD123 | Diodes Incorporated | Active | Compliant | In Stock | |
| 1N4148W-7-F | DIODE GEN PURP 100V 300MA SOD123 | Diodes Incorporated | Active | Compliant | In Stock | |
| 1N4148WQ-13-F | DIODE GP 100V 300MA SOD123 10K | Diodes Incorporated | Active | Compliant | In Stock | |
| 1N4148WQ-7-F | Diode Small Signal Switching 100V 0.3A 2-Pin SOD-123 T/R Automotive AEC-Q101 | Diodes Incorporated | Active | Compliant | In Stock | |
| 1N4148WS-13-F | DIODE GEN PURP 75V 150MA SOD323 | Diodes Incorporated | Active | Compliant | In Stock | |
| 1N4148WS-7-F-89 | Discrete Semiconductors--Diodes--Rectifiers--Single Diodes | Diodes Incorporated | Active | Compliant | In Stock | |
| 1N4148WSF | Diode Small Signal Switching 75V 0.15A 2-Pin SOD-323F | Diodes Incorporated | Active | Compliant | In Stock | |
| 1N4148WSF-7 | DIODE GP 100V 250MA SOD323F | Diodes Incorporated | Active | Compliant | In Stock | |
| 1N4148WSQ-13-F | DIODE GP 75V 150MA SOD323 T&R | Diodes Incorporated | Active | Compliant | In Stock | |
| 1N4148WSQ-7-F | DIODE GEN PURP 75V 150MA SOD323 | Diodes Incorporated | Active | Compliant | In Stock | |
| 1N4148WT-7 | DIODE GEN PURP 80V 125MA SOD523 | Diodes Incorporated | Active | Compliant | In Stock | |
| 1N4148WTQ-7 | DIODE GEN PURP 80V 125MA SOD523 | Diodes Incorporated | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on 1N4148 map to package, grade, and reel options.
How to Choose the Right 1N4148 Rectifier Diodes
Match the footprint first
Pull the exact package drawing for your MPN — base-number swaps fail most often at the footprint, not the schematic.
Electrical headroom
Compare voltage and current columns in the variant table. For 1N4148, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.
Temp grade letter matters
Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.
Copy the full MPN
Do not BOM only "1N4148" — include the full suffix (e.g. W-13-F, W-7-F, WQ-13-F). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for 1N4148 product family
Identity
Variant Parameters
Source 1N4148 with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 12 ordering variants from Diodes Incorporated. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the 1N4148 product family.