Alternatives to onsemi 1N4734A
onsemi 1N4734A and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 1N4734Aonsemi |  1N4734ADiotec Semiconductor |  1N4734A,113Nexperia USA Inc. | +2more | |
|---|---|---|---|---|
| FFF Compatibility | Both parts share the standard DO-41 (DO-204AL) axial package with identical pin assignments (Pin 1: Cathode indicated by band, Pin 2: Anode).Both devices share the standard axial through-hole format with compatible package length and diameter.Perfectly matches the 5.6 V nominal Zener voltage, 1 W power dissipation, 5 Ohms maximum dynamic impedance, and 5% tolerance. | Standard 2-pin axial DO-41 (SOD66) package with identical cathode band placement and pin assignments.Identical through-hole axial form factor and dimensions.Identical 5.6 V nominal Zener voltage, 1 W power dissipation, 5% tolerance, and thermal specifications. | ||
 AI Summary | 1N4734A by onsemi: Zener Diode 5.6 V 1 W ±5% Through Hole DO-204AL (DO-41). | A direct JEDEC-standard 1N4734A second source from Diotec with an active lifecycle status and identical electrical, thermal, and physical parameters, making it a seamless drop-in replacement.
| Nexperia's 1N4734A,113 is an active second-source equivalent of the JEDEC standard 1N4734A. It provides a direct drop-in alternative with zero physical or electrical compromises.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Zener Diode 5.6 V 1 W ±5% Through Hole DO-204AL (DO-41) | Zener Diode 5.6 V 1 W ±5% Through Hole DO-204AL (DO-41) | Zener Diode 5.6 V 1 W ±5% Through Hole DO-41 | |
| Manufacturer | onsemi | Diotec Semiconductor | Nexperia USA Inc. | |
| Type | Diodes | Diodes | Diodes | |
| Datasheet | Open | Open | Open | |
| Lead Time | 33 weeks | 6 weeks | 8 weeks | |
| Country of Origin | CN | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8541.10.0050 | - | - | |
| Moisture Sensitivity Level | - | - | - | |
| Tolerance | ±5% | - | - | |
| Power - Max | 1 W | - | - | |
| Mounting Type | Through Hole | - | - | |
| Package / Case | DO-204AL, DO-41, Axial | - | - | |
| Impedance (Max) (Zzt) | 5 Ohms | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 1N4148Diodes Incorporated | In stock | Obsolete | 3Alternatives availableSee Alternatives |
 1N4148WSDiodes Incorporated | In stock | Obsolete | 7Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The onsemi 1N4734A 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 1N4734A are the 1N4734A (Diotec Semiconductor) and the 1N4734A,113 (Nexperia USA Inc.), out of 4 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 1N4734A 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 1N4734A (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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