Alternatives to onsemi BZX55C2V7
onsemi BZX55C2V7 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 BZX55C2V7onsemi | BZX55C2V7-TAPVishay General Semiconductor - Diodes Division | 1N5223Bonsemi | +1more | |
|---|---|---|---|---|
| FFF Compatibility | Both parts utilize the standard 2-pin DO-35 axial leaded package with identical dimensions, lead pitch, and standard cathode band orientation.The physical dimensions, axial shape, and through-hole mounting type are completely interchangeable.The electrical parameters match perfectly, with a 2.7 V Zener voltage, 500 mW maximum power dissipation, and identical reverse leakage current. | Both components use the standard DO-35 axial package, allowing drop-in mechanical placement.The mechanical envelope and mounting profiles are identical.Both share the same 2.7 V nominal Zener voltage and 500 mW power rating, though leakage characteristics differ slightly. | ||
 AI Summary | BZX55C2V7 by onsemi: Zener Diode 2.7 V 500 mW ±7% Through Hole DO-204AH (DO-35). | This is a direct, active drop-in replacement from a top-tier manufacturer. It shares the exact electrical specifications, physical DO-35 axial package, and target performance parameters of the obsolete Fairchild part.
| The 1N5223B is a highly reliable JEDEC-standard alternative that fits seamlessly into the same DO-35 footprint. It offers a much lower dynamic impedance for tighter voltage regulation, albeit with a higher specified maximum reverse leakage.
| |
| Lifecycle Status | Obsolete | Unknown | Active | |
| Market Availability | In stock | Unknown | In stock | |
| REACH | Unknown | Unknown | REACH | |
| RoHS | RoHS | Unknown | RoHS | |
| Description | Zener Diode 2.7 V 500 mW ±7% Through Hole DO-204AH (DO-35) | This is a direct, active drop-in replacement from a top-tier manufacturer. It shares the exact electrical specifications, physical DO-35 axi | Zener Diode 2.7 V 500 mW ±5% Through Hole DO-35 | |
| Manufacturer | onsemi | Vishay General Semiconductor - Diodes Division | onsemi | |
| Type | Diodes | Component | Diodes | |
| Datasheet | Open | N/A | Open | |
| Lead Time | 7 days | Unknown | 18 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8541.10.0050 | - | - | |
| Moisture Sensitivity Level | - | - | - | |
| Tolerance | ±7% | - | - | |
| Power - Max | 500 mW | - | - | |
| Mounting Type | Through Hole | - | - | |
| Package / Case | DO-204AH, DO-35, Axial | - | - | |
| Impedance (Max) (Zzt) | 85 Ohms | - | - | |
| Operating Temperature | -65°C ~ 200°C | - | - | |
| Supplier Device Package | DO-204AH (DO-35) | - | - | |
| Voltage - Zener (Nom) (Vz) | 2.7 V | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 BZX84-C5V6onsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The onsemi BZX55C2V7 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 BZX55C2V7 are the BZX55C2V7-TAP (Vishay General Semiconductor - Diodes Division) and the 1N5223B (onsemi), out of 3 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 BZX55C2V7 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 BZX55C2V7 (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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