Alternatives to STMicroelectronics 1.5KE440CA
STMicroelectronics 1.5KE440CA and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 1.5KE440CASTMicroelectronics |  1.5KE440CALittelfuse Inc. | 1.5KE440CATaiwan Semiconductor Corporation | +2more | |
|---|---|---|---|---|
| FFF Compatibility | Both parts use a standard 2-pin bidirectional axial configuration in a DO-201 package.Both parts utilize the identical DO-201/DO-27 axial through-hole package dimensions.Matches the original 376V reverse standoff voltage, 418V minimum breakdown voltage, 602V maximum clamping voltage, and 1500W peak pulse power ratings. | Both parts use a standard 2-pin bidirectional axial configuration in a DO-201 package.Both parts utilize the identical DO-201/DO-27 axial through-hole package dimensions.Fully matches the original 376V reverse standoff, 418V minimum breakdown voltage, 602V maximum clamping voltage, and 1500W peak pulse power ratings. | ||
 AI Summary | 1.5KE440CA by STMicroelectronics: 602V Clamp 2.5A Ipp Tvs Diode Through Hole DO-201. | This is a high-reliability direct drop-in replacement from Littelfuse that matches all critical electrical constraints of the obsolete STMicroelectronics part. It offers a wider operating temperature limits and an improved peak pulse current handling capability.
| This Taiwan Semiconductor device is a direct second-source alternative matching the core specifications and package of the legacy STMicroelectronics part. It serves as a reliable second source with an active product lifecycle.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | 602V Clamp 2.5A Ipp Tvs Diode Through Hole DO-201 | 602V Clamp 3.1A Ipp Tvs Diode Through Hole DO-201 | 602V Clamp 2.5A Ipp Tvs Diode Through Hole DO-201 | |
| Manufacturer | STMicroelectronics | Littelfuse Inc. | Taiwan Semiconductor Corporation | |
| Type | Transient Voltage Suppressors (TVS) | Transient Voltage Suppressors (TVS) | Transient Voltage Suppressors (TVS) | |
| Datasheet | Open | Open | Open | |
| Lead Time | 25 weeks | 14 weeks | 16 weeks | |
| 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) | - | - | |
| Operating Temperature | -55°C ~ 150°C | - | - | |
| Power Line Protection | Yes | - | - | |
| Bidirectional Channels | 1 | - | - |
Unlock all 4 alternatives
- Find & compare verified second sources
- Spot risk early with real-time part monitoring
- Stay compliant and production-ready
Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 1.5KE540ALittelfuse | In stock | Active | 4Alternatives availableSee Alternatives |
 1.5KE47CATaiwan Semiconductor | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 1.5KE43Aonsemi | In stock | Obsolete | 7Alternatives availableSee Alternatives |
| 1.5KE220ASTMicroelectronics | In stock | Obsolete | 4Alternatives availableSee Alternatives |
| 1.5KE36CASTMicroelectronics | In stock | Obsolete | 6Alternatives availableSee Alternatives |
| 1.5KE62CASTMicroelectronics | In stock | Obsolete | 5Alternatives availableSee Alternatives |
You searched one part. Parter watches your whole BOM.
All your BOM, at once
Parter maps every line to live stock, lead time, lifecycle and compliance data across the entire market — not part by part.
Hear about problems before they hit production
Allocation, EOL and last-time-buy notices surface the moment they appear, not when your buyer's PO bounces.
Qualified replacements in minutes, not days
Every at-risk line gets form-fit-function matches like the ones above — deltas flagged, evidence attached. Review, push to your BOM, and Parter starts watching the new part too.
Frequently asked questions
Yes. The STMicroelectronics 1.5KE440CA 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 1.5KE440CA are the 1.5KE440CA (Littelfuse Inc.) and the 1.5KE440CA (Taiwan Semiconductor Corporation), 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 1.5KE440CA 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 1.5KE440CA (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.
Schedule a demo
See Parter in action
Discover how Parter can help your hardware team:
- Streamline your hardware operations with AI
- Detect and prevent lifecycle disruptions
- Accelerate product development
- Stay compliant and production-ready