Alternatives to onsemi 1N4004
onsemi 1N4004 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 1N4004onsemi | 1N4004GPDiotec Semiconductor |  1N4004RLGonsemi | +3more | |
|---|---|---|---|---|
| FFF Compatibility | Standard DO-41 axial package with identical pin functions (Cathode Pin 1, Anode Pin 2).Same DO-204AC / DO-41 dimensions and axial lead style.Matches the 400V, 1A rectified average current, and 1.1V forward voltage specs. | Standard axial package with standard 2-pin polarity layout.Identical DO-204AL (DO-41) footprint and mechanical outline.Perfect electrical match with 400V DC reverse voltage and 1A average current. | ||
 AI Summary | 1N4004 by onsemi: Diode 400 V 1A Through Hole DO-204AC (DO-41). | The 1N4004GP is the glass-passivated version from the same manufacturer (Diotec), serving as an ideal active drop-in replacement with enhanced junction protection. It retains the identical physical package size and matching electrical baselines.
| The onsemi 1N4004RLG is a premier industry-standard replacement. It matches all electrical and physical parameters perfectly while being backed by robust tier-1 supply chains and an active manufacturing status.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Diode 400 V 1A Through Hole DO-204AC (DO-41) | Diode 400 V 1A Through Hole DO-204AC (DO-41) | Diode 400 V 1A Through Hole Axial | |
| Manufacturer | onsemi | Diotec Semiconductor | onsemi | |
| Type | Diodes | Diodes | Diodes | |
| Datasheet | Open | Open | Open | |
| Lead Time | 7 weeks | 6 weeks | 12 weeks | |
| Country of Origin | CN | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8541.10.0080 | - | - | |
| Moisture Sensitivity Level | Not Applicable | - | - | |
| Speed | Standard Recovery >500ns, > 200mA (Io) | - | - | |
| Technology | Standard | - | - | |
| Mounting Type | Through Hole | - | - | |
| Package / Case | DO-204AC, DO-41, Axial | - | - | |
| Supplier Device Package | DO-204AC (DO-41) | - | - | |
| Reverse Recovery Time (trr) | 1.5 µs | - | - | |
| Current - Reverse Leakage @ Vr | 5 µA @ 400 V | - | - | |
| Voltage - DC Reverse (Vr) (Max) | 400 V | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 1N4007-TDiodes Incorporated | In stock | Obsolete | 5Alternatives availableSee Alternatives |
| 1N4007GDiodes Incorporated | In stock | Active | 9Alternatives availableSee Alternatives |
 1N4148Diodes Incorporated | In stock | Obsolete | 3Alternatives availableSee Alternatives |
| 1N4148-TDiodes Incorporated | In stock | Obsolete | 6Alternatives availableSee Alternatives |
| 1N4148WDiodes Incorporated | Non-stock | Obsolete | 7Alternatives availableSee Alternatives |
 1N4734Aonsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The onsemi 1N4004 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 onsemi 1N4004 are the 1N4004GP (Diotec Semiconductor) and the 1N4004RLG (onsemi), out of 5 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 1N4004 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 1N4004 (onsemi) 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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