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P6SMB10CA-M3/52 Equivalent & Substitute Parts
Part Overview
The P6SMB10CA-M3/52 is a transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This bidirectional Zener diode operates in the DO-214AA (SMB) surface mount package and is designed for general-purpose transient voltage suppression applications. The device features an 8.55V reverse standoff voltage with a 14.5V maximum clamping voltage at peak pulse current of 41.4A, delivering 600W peak pulse power dissipation across an operating temperature range of -65°C to 150°C.
The P6SMB10CA-M3/52 maintains Active product status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are necessary when the original part number becomes unavailable, when alternative packaging formats are required, or when sourcing from different manufacturers is preferred while maintaining electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 8.55 | V |
| Voltage - Breakdown (Min) | 9.5 | V |
| Voltage - Clamping (Max) @ Ipp | 14.5 | V |
| Current - Peak Pulse (10/1000µs) | 41.4 | A |
| Power - Peak Pulse | 600 | W |
| Package / Case | DO-214AA, SMB | — |
| Mounting Type | Surface Mount | — |
| Operating Temperature Range | -65°C to 150°C | TJ |
| Type | Zener | — |
| Bidirectional Channels | 1 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution eligibility for the P6SMB10CA-M3/52 is determined by the following critical parameters:
Primary Matching Criteria:
- Voltage - Reverse Standoff (Typ): 8.55V ± tolerance
- Voltage - Clamping (Max) @ Ipp: 14.5V ± tolerance
- Current - Peak Pulse (10/1000µs): ≥ 41.4A
- Power - Peak Pulse: 600W
- Package / Case: DO-214AA or SMB equivalent
- Mounting Type: Surface Mount
- Bidirectional Channels: 1
- Type: Zener
Secondary Compatibility Factors:
- Operating Temperature Range: minimum -55°C to 150°C
- RoHS Compliance: RoHS3 or RoHS Compliant
- Moisture Sensitivity Level: MSL 1
Substitute parts are grouped into two categories based on electrical performance alignment:
Group A - Direct Electrical Equivalents: Parts with clamping voltage of 14.4V to 14.5V and peak pulse current of 41.4A to 42.1A. These parts maintain identical voltage regulation characteristics and are fully interchangeable.
Group B - Functional Alternatives: Parts with higher clamping voltages (18.6V to 19.5V) and higher peak pulse currents (215A at 8/20µs). These parts provide enhanced transient suppression capability and are suitable for applications requiring greater protection margin, though they operate at different voltage thresholds.
Parameter Comparison
| Part Number | Manufacturer | Reverse Standoff (V) | Breakdown Min (V) | Clamping Max @ Ipp (V) | Peak Pulse Current (A) | Peak Pulse Power (W) | Package | Temp Range (°C) | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| P6SMB10CA-M3/52 | Vishay | 8.55 | 9.5 | 14.5 | 41.4 | 600 | DO-214AA | -65 to 150 | ROHS3 |
| P6SMB10CA | Eaton | 8.55 | 9.5 | 14.5 | 42.1 | 600 | SMB | -55 to 150 | RoHS |
| SM6T10CA | STMicroelectronics | 8.55 | 9.5 | 18.6 | 215 (8/20µs) | 600 | DO-214AA | -55 to 150 | ROHS3 |
| SM6T10CAY | STMicroelectronics | 8.55 | 9.5 | 18.6 | 215 (8/20µs) | 600 | DO-214AA | -55 to 150 | ROHS3 |
| SMBJ8.5CA-13-F | Diodes Incorporated | 8.5 | 9.44 | 14.4 | 41.7 | 600 | SMB | -55 to 150 | ROHS3 |
| SMBJ8.5CA-TR | STMicroelectronics | 8.5 | 9.4 | 19.5 | 41.7 | 600 | DO-214AA | -55 to 150 | ROHS3 |
| SMBJ8V5CA | Fairchild Semiconductor | 8.5 | 9.44 | 14.4 | 41.7 | 600 | DO-214AA | -55 to 150 | — |
| SMBJP6KE10CA-TP | Micro Commercial Co | 8.55 | 9.5 | 14.5 | 42.1 | 600 | DO-214AA | -55 to 175 | ROHS3 |
Engineering Selection Recommendations
Direct Replacement (Group A - Preferred):
The P6SMB10CA (Eaton), SMBJ8.5CA-13-F (Diodes Incorporated), SMBJ8V5CA (Fairchild Semiconductor), and SMBJP6KE10CA-TP (Micro Commercial Co) are direct electrical equivalents with clamping voltages between 14.4V and 14.5V and peak pulse currents between 41.4A and 42.1A. These parts maintain identical voltage regulation performance and are fully interchangeable in applications designed for the P6SMB10CA-M3/52.
The SMBJP6KE10CA-TP offers the extended operating temperature range of -55°C to 175°C, providing additional thermal margin for high-temperature applications. All Group A substitutes maintain RoHS3 compliance and MSL 1 rating.
Alternative Selection (Group B - Enhanced Protection):
The SM6T10CA and SM6T10CAY (STMicroelectronics) and SMBJ8.5CA-TR (STMicroelectronics) feature higher clamping voltages (18.6V to 19.5V) and significantly higher peak pulse currents (215A at 8/20µs). These parts are suitable for applications requiring enhanced transient suppression capability beyond the original specification. The SM6T10CAY carries AEC-Q101 automotive qualification, making it appropriate for automotive-grade applications.
Packaging Considerations:
All substitute parts are available in DO-214AA or SMB surface mount packages compatible with the original P6SMB10CA-M3/52 footprint. Packaging format differences (Tape & Box, Tape & Reel, Cut Tape, Bulk) do not affect electrical performance and are determined by procurement and assembly requirements.
Compliance and Certification:
All recommended substitutes maintain RoHS3 compliance or equivalent RoHS certification. MSL 1 (Unlimited) moisture sensitivity is consistent across all parts, eliminating moisture-related handling concerns.
Frequently Asked Questions (FAQ)
Q: Can I use SMBJ8.5CA-13-F as a direct replacement for P6SMB10CA-M3/52?
A: Yes. The SMBJ8.5CA-13-F operates at 8.5V reverse standoff with 14.4V clamping voltage and 41.7A peak pulse current, matching the electrical performance of the P6SMB10CA-M3/52 within acceptable tolerance. Both devices are rated for 600W peak pulse power and operate across -55°C to 150°C. The 0.05V difference in reverse standoff voltage (8.55V vs 8.5V) is within normal manufacturing tolerance for this device category.
Q: What is the difference between Group A and Group B substitutes?
A: Group A substitutes (P6SMB10CA, SMBJ8.5CA-13-F, SMBJ8V5CA, SMBJP6KE10CA-TP) maintain the same clamping voltage (14.4V to 14.5V) and peak pulse current (41.4A to 42.1A) as the original part, providing identical voltage regulation. Group B substitutes (SM6T10CA, SM6T10CAY, SMBJ8.5CA-TR) feature higher clamping voltages (18.6V to 19.5V) and significantly higher peak pulse currents (215A), offering enhanced transient suppression for applications requiring greater protection margin.
Q: Are all substitute parts available in the same package as the original P6SMB10CA-M3/52?
A: Yes. All substitute parts are available in DO-214AA or SMB surface mount packages, which are mechanically and electrically equivalent. The original part uses DO-214AA (SMBJ) packaging. Packaging format variations (Tape & Box, Tape & Reel, Cut Tape, Bulk) refer to supply method and do not affect component performance or PCB compatibility.
Q: Does the operating temperature range affect substitution eligibility?
A: The original P6SMB10CA-M3/52 operates from -65°C to 150°C. Most substitutes operate from -55°C to 150°C, which is acceptable for most applications. The SMBJP6KE10CA-TP extends to -55°C to 175°C, providing additional thermal margin. If your application requires operation below -55°C, the original part or a custom specification is necessary.
Q: What does RoHS3 compliance mean for substitution?
A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. All recommended substitutes maintain RoHS3 or equivalent RoHS certification, ensuring environmental and regulatory compliance. This does not affect electrical performance or interchangeability.
Q: Can I use SM6T10CA in place of P6SMB10CA-M3/52 if my circuit can tolerate higher clamping voltage?
A: Yes, if your circuit design permits. The SM6T10CA operates at 18.6V clamping voltage compared to 14.5V for the original part. This higher clamping voltage means the device allows transient voltages to reach 18.6V before clamping, compared to 14.5V for the original. Use this substitute only if your protected circuit components can withstand the higher voltage transient. The significantly higher peak pulse current (215A vs 41.4A) provides enhanced surge handling capability.
Q: What is MSL 1 (Unlimited) moisture sensitivity?
A: MSL 1 indicates the component has unlimited shelf life and does not require special moisture-control handling during storage or assembly. All recommended substitutes carry MSL 1 rating, eliminating moisture-related procurement or assembly constraints.
Q: Are there any certifications that distinguish certain substitutes?
A: Yes. The SM6T10CAY carries AEC-Q101 automotive qualification, making it suitable for automotive-grade applications requiring enhanced reliability testing and traceability. This certification is relevant only if your application requires automotive-level component qualification.
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