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P6SMB27AHM3_A/I Equivalent & Substitute Parts
Part Overview
The P6SMB27AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for telecom applications requiring transient voltage protection with a 23.1V reverse standoff voltage and 37.5V maximum clamping voltage. The part is currently classified as obsolete, necessitating identification of active equivalent components that maintain identical electrical and mechanical specifications for continued system support and new designs.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Reverse Standoff (Typ) | 23.1V |
| Voltage - Breakdown (Min) | 25.7V |
| Voltage - Clamping (Max) @ Ipp | 37.5V |
| Current - Peak Pulse (10/1000µs) | 16A |
| Power - Peak Pulse | 600W |
| Package / Case | DO-214AA (SMB) |
| Unidirectional Channels | 1 |
| Operating Temperature Range | -65°C ~ 150°C (TJ) |
| Grade | Automotive |
| Qualification | AEC-Q101 |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution of the P6SMB27AHM3_A/I is determined by strict equivalence across the following critical parameters:
- Voltage - Reverse Standoff: 23.1V (Typ)
- Voltage - Breakdown: 25.7V (Min)
- Voltage - Clamping: 37.5V (Max) @ Ipp
- Current - Peak Pulse: 16A (10/1000µs)
- Power - Peak Pulse: 600W
- Package: DO-214AA (SMB) surface mount
- Unidirectional configuration (1 channel)
- Automotive grade with AEC-Q101 qualification
- Operating temperature range: -65°C ~ 150°C (TJ)
The P6SMB27AHM3_B/I maintains all specified electrical characteristics and mechanical parameters, differing only in product status (active vs. obsolete) and packaging format (Tape & Reel vs. standard packaging).
Parameter Comparison
| Parameter | P6SMB27AHM3_A/I (Main) | P6SMB27AHM3_B/I (Substitute) |
|---|---|---|
| Manufacturer | Vishay General Semiconductor - Diodes Division | Vishay General Semiconductor - Diodes Division |
| Series | P6SMB, TransZorb® | P6SMB, TransZorb® |
| Type | Zener | Zener |
| Voltage - Reverse Standoff (Typ) | 23.1V | 23.1V |
| Voltage - Breakdown (Min) | 25.7V | 25.7V |
| Voltage - Clamping (Max) @ Ipp | 37.5V | 37.5V |
| Current - Peak Pulse (10/1000µs) | 16A | 16A |
| Power - Peak Pulse | 600W | 600W |
| Package / Case | DO-214AA (SMB) | DO-214AA (SMB) |
| Unidirectional Channels | 1 | 1 |
| Operating Temperature | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) |
| Grade | Automotive | Automotive |
| Qualification | AEC-Q101 | AEC-Q101 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active |
| Packaging Format | Standard | Tape & Reel (TR) |
Engineering Selection Recommendations
The P6SMB27AHM3_B/I is the direct equivalent substitute for the obsolete P6SMB27AHM3_A/I. Both components are manufactured by Vishay and maintain identical electrical performance specifications. The substitute part carries active product status, ensuring continued availability and manufacturing support. Both parts maintain automotive-grade qualification with AEC-Q101 certification and ROHS3 compliance, meeting regulatory requirements for automotive and telecom applications. The primary distinction is packaging format: the substitute is supplied in Tape & Reel configuration, which is standard for high-volume production environments. Component selection should be based on procurement requirements and assembly process specifications.
Frequently Asked Questions (FAQ)
Q: Can P6SMB27AHM3_B/I be used as a direct replacement for P6SMB27AHM3_A/I?
A: Yes. Both parts are electrically and mechanically identical across all specified parameters. The substitute maintains the same voltage ratings (23.1V standoff, 37.5V clamping), current handling (16A peak pulse), power dissipation (600W), package format (DO-214AA SMB), and automotive qualifications (AEC-Q101).
Q: What is the difference between the two part numbers?
A: The primary differences are product status and packaging format. The P6SMB27AHM3_A/I is obsolete, while the P6SMB27AHM3_B/I is active. The substitute is supplied in Tape & Reel packaging, which is standard for automated assembly processes.
Q: Are there any thermal or operating condition differences?
A: No. Both parts operate across the identical temperature range of -65°C to 150°C (junction temperature) and maintain the same electrical characteristics across this range.
Q: Does the Tape & Reel packaging affect circuit performance?
A: No. Packaging format does not affect electrical performance. The component itself is identical; only the delivery and handling format differs.
Q: Are both parts compliant with current regulatory standards?
A: Yes. Both the P6SMB27AHM3_A/I and P6SMB27AHM3_B/I are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.
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