Alternatives to Diodes Incorporated 1N4148
Diodes Incorporated 1N4148 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 1N4148Diodes Incorporated |  1N4148onsemi | 1N4148Diotec Semiconductor | +1more | |
|---|---|---|---|---|
| FFF Compatibility | Both parts utilize the identical DO-35 axial through-hole package with a standard 2-pin anode/cathode pinout configuration.Both components match the physical dimensions and axial lead style of the DO-35 package.The onsemi part meets or exceeds all electrical parameters of the original, providing 100 V reverse voltage, 200 mA forward current, and an identical 4 ns reverse recovery time. | Both parts utilize the identical DO-35 axial through-hole package with a standard 2-pin anode/cathode pinout configuration.Both parts share the physical dimensions and axial lead style of the DO-35 package.The Diotec part matches the original with a 75 V reverse voltage, 4 ns recovery time, and provides a slightly higher forward current rating of 200 mA. | ||
 AI Summary | 1N4148 by Diodes Incorporated: Diode 75 V 150mA Through Hole DO-35. | This is a high-confidence, direct drop-in replacement from onsemi. It is currently active and in production, offering slightly improved voltage (100 V) and current (200 mA) handling compared to the obsolete Diodes Inc. part.
| This is an active, direct second-source replacement from Diotec Semiconductor. It preserves the classic DO-35 axial footprint and exact electrical parameters, ensuring seamless system operation.
| |
| 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 75 V 200mA Through Hole DO-35 | Diode 75 V 200mA Through Hole DO-35 | |
| Manufacturer | Diodes Incorporated | onsemi | Diotec Semiconductor | |
| Type | Diodes | Diodes | Diodes | |
| Datasheet | Open | Open | Open | |
| Lead Time | 13 weeks | 6 weeks | 6 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8541.10.0070 | - | - | |
| Moisture Sensitivity Level | - | - | - | |
| 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 | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 1N4148WSDiodes Incorporated | In stock | Obsolete | 7Alternatives availableSee Alternatives |
 LL4148onsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 1N4734Aonsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Diodes Incorporated 1N4148 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 are the 1N4148 (onsemi) and the 1N4148 (Diotec Semiconductor), out of 3 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Yes. The leading alternatives to the 1N4148 are fit-, form- and function-compatible — the same package and pinout with matching key electrical specifications — so they drop in without PCB changes. Always confirm the parameters critical to your design against the alternative's datasheet before committing.
The 1N4148 (Diodes Incorporated) is a part in the Diodes category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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