Alternatives to STMicroelectronics 1.5KE220A
STMicroelectronics 1.5KE220A and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 1.5KE220ASTMicroelectronics | 1.5KE220ALittelfuse Inc. |  1.5KE220A-E3/54Vishay General Semiconductor - Diodes Division | +2more | |
|---|---|---|---|---|
| FFF Compatibility | Both are 2-pin axial through-hole DO-201 / DO-201AA components with the exact same Cathode (Pin 1) and Anode (Pin 2) pinout.Both share the standard DO-201AA (also known as DO-27) physical dimensions and axial through-hole mounting type.Meets or exceeds all performance specifications with a 1500W peak pulse power capacity, 185V reverse standoff voltage, and a 209V minimum breakdown voltage. | Exactly matches the 2-pin axial through-hole layout of the original part (Pin 1 Cathode with band indicator, Pin 2 Anode).Utilizes the exact same industry-standard 1.5KE package with matching body and lead dimensions.Identical electrical performance specs including 1500W peak power rating, 185V standoff, and 209V breakdown voltage. | ||
 AI Summary | 1.5KE220A by STMicroelectronics: 388V Clamp 26A (8/20µs) Ipp Tvs Diode Through Hole DO-201. | This is a direct, industry-standard drop-in replacement from Littelfuse with active lifecycle status. It features the exact same package dimensions, pinout, and key electrical characteristics as the obsolete STMicroelectronics component.
| The TransZorb series from Vishay is an exceptionally reliable second-source drop-in replacement. It is fully active, matches the target part in fit and form, and offers identical electrical surge parameters.
| |
| Lifecycle Status | Obsolete | Active | Unknown | |
| Market Availability | In stock | In stock | Unknown | |
| REACH | REACH | REACH | Unknown | |
| RoHS | RoHS | RoHS | Unknown | |
| Description | 388V Clamp 26A (8/20µs) Ipp Tvs Diode Through Hole DO-201 | 328V Clamp 4.6A Ipp Tvs Diode Through Hole DO-201 | The TransZorb series from Vishay is an exceptionally reliable second-source drop-in replacement. It is fully active, matches the target part | |
| Manufacturer | STMicroelectronics | Littelfuse Inc. | Vishay General Semiconductor - Diodes Division | |
| Type | Transient Voltage Suppressors (TVS) | Transient Voltage Suppressors (TVS) | Component | |
| Datasheet | Open | Open | N/A | |
| Lead Time | 25 weeks | 14 weeks | Unknown | |
| Country of Origin | CN | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8541.10.0080 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Type | Zener | - | - | |
| Applications | General Purpose | - | - | |
| Mounting Type | Through Hole | - | - | |
| Package / Case | DO-201AA, DO-27, Axial | - | - | |
| Power - Peak Pulse | 1500W (1.5kW) | - | - | |
| Power Line Protection | No | - | - | |
| Capacitance @ Frequency | 625pF @ 1MHz | - | - | |
| Supplier Device Package | DO-201 | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 1.5KE62Aonsemi | Discontinued | Obsolete | 8Alternatives availableSee Alternatives |
 1.5KE540ALittelfuse | In stock | Active | 4Alternatives availableSee Alternatives |
 1.5KE62CASTMicroelectronics | In stock | Obsolete | 5Alternatives availableSee Alternatives |
| 1.5KE440CASTMicroelectronics | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 1.5KE15Aonsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
| 1.5KE43Aonsemi | In stock | Obsolete | 7Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The STMicroelectronics 1.5KE220A 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 STMicroelectronics 1.5KE220A are the 1.5KE220A (Littelfuse Inc.) and the 1.5KE220A-E3/54 (Vishay General Semiconductor - Diodes Division), out of 4 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 1.5KE220A 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 1.5KE220A (STMicroelectronics) is a part in the Transient Voltage Suppressors (TVS) category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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