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SMCJ5.0C Transient Voltage Suppressor Diode - Equivalent & Substitute Parts
Part Overview
The SMCJ5.0C is a bidirectional Zener transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 5V reverse standoff voltage, 9.66V maximum clamping voltage, and 163A peak pulse current capability in a DO-214AB (SMC) package. The SMCJ5.0C is classified as obsolete product status. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 5 | V |
| Voltage - Breakdown (Min) | 6.03 | V |
| Voltage - Clamping (Max) @ Ipp | 9.66 | V |
| Current - Peak Pulse (10/1000µs) | 163 | A |
| Power - Peak Pulse | 1500 | W |
| Operating Temperature Range | -55 to 150 | °C |
| Package / Case | DO-214AB, SMC | — |
| Mounting Type | Surface Mount | — |
| Type | Zener | — |
| Bidirectional Channels | 1 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution eligibility for the SMCJ5.0C is determined by the following critical parameters:
- Reverse standoff voltage: 5V (required match)
- Zener diode type with bidirectional protection (1 channel)
- DO-214AB / SMC surface-mount package
- Peak pulse current: 163A minimum
- Clamping voltage: 9.2V to 9.66V range acceptable
- Power dissipation: 1500W (1.5kW)
- Operating temperature: -55°C to 150°C minimum
- RoHS3 compliance and MSL 1 rating
Substitute parts are grouped into two categories based on clamping voltage specification:
Category A (9.2V Clamping): SMCJ5.0CA, SMCJ5.0CA-13-F, SMCJ5.0CA-M3/57T, SMCJ5.0CA-M3/9AT, SMCJ5.0CA-TP, SMCJ5.0CAE3/TR13, SMCJ5V0CA
Category B (9.6V Clamping): SMCJ5.0CE3/TR13
All substitute parts maintain the same 5V reverse standoff voltage, 1500W peak pulse power, DO-214AB/SMC package configuration, and general-purpose application profile as the original SMCJ5.0C.
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff (V) | Voltage - Clamping (Max) @ Ipp (V) | Current - Peak Pulse (A) | Power - Peak Pulse (W) | Operating Temperature (°C) | Product Status | Package |
|---|---|---|---|---|---|---|---|---|
| SMCJ5.0C | Littelfuse Inc. | 5 | 9.66 | 163 | 1500 | -55 to 150 | Obsolete | DO-214AB, SMC |
| SMCJ5.0CA | Taiwan Semiconductor Corporation | 5 | 9.2 | 171 | 1500 | -55 to 150 | Active | DO-214AB, SMC |
| SMCJ5.0CA-13-F | Diodes Incorporated | 5 | 9.2 | 163 | 1500 | -55 to 150 | Active | DO-214AB, SMC |
| SMCJ5.0CA-M3/57T | Vishay General Semiconductor - Diodes Division | 5 | 9.2 | 163 | 1500 | -55 to 150 | Active | DO-214AB, SMC |
| SMCJ5.0CA-M3/9AT | Vishay General Semiconductor - Diodes Division | 5 | 9.2 | 163 | 1500 | -55 to 150 | Active | DO-214AB, SMC |
| SMCJ5.0CA-TP | Micro Commercial Co | 5 | 9.2 | 163 | 1500 | -55 to 175 | Active | DO-214AB, SMC |
| SMCJ5.0CAE3/TR13 | Microchip Technology | 5 | 9.2 | 163 | 1500 | -65 to 150 | Active | DO-214AB, SMC |
| SMCJ5.0CE3/TR13 | Microchip Technology | 5 | 9.6 | 156.2 | 1500 | -65 to 150 | Active | DO-214AB, SMC |
| SMCJ5V0CA | Taiwan Semiconductor Corporation | 5 | 9.2 | 163 | 1500 | — | Active | DO-214AB, SMC |
Engineering Selection Recommendations
All listed substitute parts are classified as active product status, ensuring long-term availability and manufacturing support. All substitutes maintain RoHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating, matching the original SMCJ5.0C specifications.
Primary substitutes: SMCJ5.0CA (Taiwan Semiconductor Corporation), SMCJ5.0CA-M3/57T (Vishay), and SMCJ5.0CA-TP (Micro Commercial Co) are recommended for direct replacement. These parts maintain identical reverse standoff voltage, peak pulse power, and package configuration with active product status and established supply chain availability.
Extended temperature range option: SMCJ5.0CAE3/TR13 (Microchip Technology) and SMCJ5.0CE3/TR13 (Microchip Technology) provide expanded operating temperature ranges (-65°C to 150°C), suitable for applications requiring enhanced low-temperature performance.
Clamping voltage consideration: SMCJ5.0CE3/TR13 specifies 9.6V maximum clamping voltage, closely matching the original SMCJ5.0C specification of 9.66V. This part is appropriate for designs with strict clamping voltage requirements.
Frequently Asked Questions (FAQ)
Q: Can SMCJ5.0CA be used as a direct replacement for SMCJ5.0C?
A: Yes. Both parts share identical 5V reverse standoff voltage, 1500W peak pulse power, DO-214AB/SMC package, and general-purpose application profile. SMCJ5.0CA is active product status with higher peak pulse current (171A vs. 163A), providing improved margin. Clamping voltage differs slightly (9.2V vs. 9.66V), which is acceptable within typical circuit tolerance.
Q: What is the difference between SMCJ5.0CA and SMCJ5V0CA?
A: Both parts are manufactured by Taiwan Semiconductor Corporation with identical electrical specifications: 5V reverse standoff, 9.2V clamping voltage, 163A peak pulse current, and 1500W power dissipation in DO-214AB/SMC package. SMCJ5V0CA does not specify operating temperature range in the provided data. SMCJ5.0CA is recommended for applications requiring documented temperature specifications.
Q: Are Vishay TransZorb® parts (SMCJ5.0CA-M3/57T, SMCJ5.0CA-M3/9AT) compatible with the SMCJ5.0C?
A: Yes. Both Vishay parts maintain the required 5V reverse standoff voltage, 9.2V clamping voltage, 163A peak pulse current, 1500W power dissipation, and DO-214AB/SMC package. Operating temperature range is -55°C to 150°C, matching the original specification. Packaging format differs (Tape & Reel vs. unspecified original), but electrical compatibility is confirmed.
Q: What is the significance of the clamping voltage variation between substitutes?
A: The SMCJ5.0C specifies 9.66V maximum clamping voltage. Most substitutes (SMCJ5.0CA series) specify 9.2V, which is lower and provides tighter voltage clamping. SMCJ5.0CE3/TR13 specifies 9.6V, closely matching the original. For applications with strict clamping voltage requirements, SMCJ5.0CE3/TR13 is preferred. For general-purpose protection, the 9.2V clamping variants are acceptable.
Q: Does operating temperature range affect substitution eligibility?
A: Operating temperature range does not disqualify substitution. The original SMCJ5.0C specifies -55°C to 150°C. Substitutes with identical or extended ranges (such as SMCJ5.0CAE3/TR13 at -65°C to 150°C) are fully compatible. Substitutes with identical ranges are directly equivalent. Extended range options provide additional design margin for low-temperature applications.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts are RoHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, matching the original SMCJ5.0C environmental specifications.
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