Alternatives to Diodes Incorporated 1N4148WS
Diodes Incorporated 1N4148WS and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
Equivalent and substitute parts for Diodes Incorporated 1N4148WS
 1N4148WSDiodes Incorporated |  1N4148WS-7-FDiodes Incorporated |  1N4148WSonsemi | +5more | |
|---|---|---|---|---|
| FFF Compatibility | Both parts are in the standard 2-pin SOD-323 package with identical pinout (Pin 1 Cathode, Pin 2 Anode).Identical SMD SOD-323 dimensions.Identical electrical characteristics: 75V DC Reverse Voltage and 150mA Average Rectified Current. | Both are standard 2-pin diodes where Pin 1 is Cathode and Pin 2 is Anode.SOD-323F package features flat leads but uses a footprint highly compatible with SOD-323.Matches the 75V Vr and 150mA forward current specifications. | ||
 AI Summary | 1N4148WS by Diodes Incorporated: Diode 75 V 150mA Surface Mount SOD-323. | This is the official direct, active, and RoHS-compliant upgrade replacement from the original manufacturer (Diodes Inc), ensuring perfect FFF compatibility.
| This is an active industry-standard equivalent from onsemi in a highly compatible SOD-323F package, offering excellent second-source reliability.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| ——— ———— | ————— ——— ———— | ———— —————— | —— ————— ——— | |
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| —— ————— | ———— —————— | —— ————— ——— | ——————— ———— |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
| 1N4148WDiodes Incorporated | Non-stock | Obsolete | 7Alternatives availableSee Alternatives |
 1N4148Diodes Incorporated | In stock | Obsolete | 3Alternatives availableSee Alternatives |
| 1N4148-TDiodes Incorporated | In stock | Obsolete | 6Alternatives availableSee Alternatives |
 LS4148Taiwan Semiconductor | In stock | Obsolete | 5Alternatives availableSee Alternatives |
 LL4148onsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 1N4004onsemi | In stock | Obsolete | 5Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Diodes Incorporated 1N4148WS 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 1N4148WS are the 1N4148WS-7-F (Diodes Incorporated) and the 1N4148WS (onsemi), out of 7 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 1N4148WS 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 1N4148WS (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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