Alternatives to Diodes Incorporated 1N4148-T
Diodes Incorporated 1N4148-T and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 1N4148-TDiodes Incorporated |  1N4148TAonsemi |  1N4148-TAPVishay General Semiconductor - Diodes Division | +4more | |
|---|---|---|---|---|
| FFF Compatibility | Both parts use the standard 2-pin axial DO-35 package and share the exact same physical footprint and lead dimensions.Identical DO-35 through-hole physical dimensions and package style.Meets or exceeds all critical electrical parameters including breakdown voltage, forward current, and switching speed. | Standard DO-35 axial leaded through-hole layout requiring no PCB layout changes.Standard DO-204AH / DO-35 glass package envelope.Slightly slower reverse recovery time of 8ns compared to the original's 4ns, which may affect highly timing-sensitive RF or high-frequency switching circuits. | ||
 AI Summary | 1N4148-T by Diodes Incorporated: Diode 75 V 150mA Through Hole DO-35. | The 1N4148TA from onsemi is a highly reliable, active drop-in replacement that meets or exceeds all electrical performance specs of the original Diodes Inc. part, offering higher voltage and current safety margins.
| The Vishay 1N4148-TAP is an active, robust alternative that provides an excellent current rating boost, though its slightly slower reverse recovery time makes it a partial functional match.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Diode 75 V 150mA Through Hole DO-35 | Diode 100 V 200mA Through Hole DO-35 | Diode 75 V 300mA Through Hole DO-204AH (DO-35) | |
| Manufacturer | Diodes Incorporated | onsemi | Vishay General Semiconductor - Diodes Division | |
| Type | Diodes | Diodes | Diodes | |
| Datasheet | Open | Open | Open | |
| Lead Time | 11 weeks | 7 days | 28 weeks | |
| Country of Origin | CN | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8541.10.0070 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Speed | Small Signal =< 200mA (Io), Any Speed | - | - | |
| Technology | Standard | - | - | |
| Mounting Type | Through Hole | - | - | |
| Package / Case | DO-204AH, DO-35, Axial | - | - | |
| Capacitance @ Vr, F | 4pF @ 0V, 1MHz | - | - | |
| Supplier Device Package | DO-35 | - | - | |
| Reverse Recovery Time (trr) | 4 ns | - | - | |
| Current - Reverse Leakage @ Vr | 5 µA @ 75 V | - | - |
Unlock all 6 alternatives
- Find & compare verified second sources
- Spot risk early with real-time part monitoring
- Stay compliant and production-ready
Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 1N4148Diodes Incorporated | In stock | Obsolete | 3Alternatives availableSee Alternatives |
| 1N4148WDiodes Incorporated | Non-stock | Obsolete | 7Alternatives availableSee Alternatives |
 1N4148WSDiodes Incorporated | In stock | Obsolete | 7Alternatives availableSee Alternatives |
 1N4004onsemi | In stock | Obsolete | 5Alternatives availableSee Alternatives |
 1N4007-TDiodes Incorporated | In stock | Obsolete | 5Alternatives availableSee Alternatives |
 1N4371Aonsemi | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
You searched one part. Parter watches your whole BOM.
All your BOM, at once
Parter maps every line to live stock, lead time, lifecycle and compliance data across the entire market — not part by part.
Hear about problems before they hit production
Allocation, EOL and last-time-buy notices surface the moment they appear, not when your buyer's PO bounces.
Qualified replacements in minutes, not days
Every at-risk line gets form-fit-function matches like the ones above — deltas flagged, evidence attached. Review, push to your BOM, and Parter starts watching the new part too.
Frequently asked questions
Yes. The Diodes Incorporated 1N4148-T is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.
The closest qualified second sources for the Diodes Incorporated 1N4148-T are the 1N4148TA (onsemi) and the 1N4148-TAP (Vishay General Semiconductor - Diodes Division), out of 6 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the 1N4148-T are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The 1N4148-T (Diodes Incorporated) is a part in the Diodes category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
Schedule a demo
See Parter in action
Discover how Parter can help your hardware team:
- Streamline your hardware operations with AI
- Detect and prevent lifecycle disruptions
- Accelerate product development
- Stay compliant and production-ready