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P6SMB13AHM3_A/I Equivalent & Substitute Parts
Part Overview
The P6SMB13AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for transient overvoltage protection in telecom applications, featuring a 13V nominal reverse standoff voltage and 18.2V maximum clamping voltage with 33A peak pulse current capability in a surface mount DO-214AA (SMB) package.
The P6SMB13AHM3_A/I is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Reverse Standoff (Typ) | 11.1V |
| Voltage - Breakdown (Min) | 12.4V |
| Voltage - Clamping (Max) @ Ipp | 18.2V |
| Current - Peak Pulse (10/1000µs) | 33A |
| Power - Peak Pulse | 600W |
| Operating Temperature Range | -65°C ~ 150°C (TJ) |
| Package / Case | DO-214AA (SMB) |
| Mounting Type | Surface Mount |
| Grade | Automotive |
| Qualification | AEC-Q101 |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the P6SMB13AHM3_A/I is determined by strict equivalence across the following critical parameters:
- Voltage - Reverse Standoff (Typ): 11.1V
- Voltage - Breakdown (Min): 12.4V
- Voltage - Clamping (Max) @ Ipp: 18.2V
- Current - Peak Pulse (10/1000µs): 33A
- Power - Peak Pulse: 600W
- Package / Case: DO-214AA (SMB)
- Operating Temperature Range: -65°C ~ 150°C (TJ)
- Automotive Grade and AEC-Q101 Qualification
The P6SMB13AHM3_B/I is identified as a manufacturer-recommended substitute. This part maintains identical electrical specifications and thermal performance while differing only in product status (Active vs. Obsolete) and packaging format (Tape & Reel vs. standard packaging).
Parameter Comparison
| Parameter | P6SMB13AHM3_A/I | P6SMB13AHM3_B/I |
|---|---|---|
| Manufacturer | Vishay General Semiconductor - Diodes Division | Vishay General Semiconductor - Diodes Division |
| Category | Transient Voltage Suppressors (TVS) | Transient Voltage Suppressors (TVS) |
| Series | P6SMB, TransZorb® | P6SMB, TransZorb® |
| Type | Zener | Zener |
| Unidirectional Channels | 1 | 1 |
| Voltage - Reverse Standoff (Typ) | 11.1V | 11.1V |
| Voltage - Breakdown (Min) | 12.4V | 12.4V |
| Voltage - Clamping (Max) @ Ipp | 18.2V | 18.2V |
| Current - Peak Pulse (10/1000µs) | 33A | 33A |
| Power - Peak Pulse | 600W | 600W |
| Operating Temperature | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) |
| Grade | Automotive | Automotive |
| Qualification | AEC-Q101 | AEC-Q101 |
| Package / Case | DO-214AA (SMB) | DO-214AA (SMB) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active |
| Packaging Format | Standard | Tape & Reel (TR) |
Engineering Selection Recommendations
The P6SMB13AHM3_B/I is the direct substitute for the obsolete P6SMB13AHM3_A/I. Both parts are manufactured by Vishay and maintain identical electrical and thermal specifications. The P6SMB13AHM3_B/I carries Active product status, ensuring continued availability and manufacturing support.
Both parts meet automotive-grade requirements and hold AEC-Q101 qualification, confirming suitability for automotive and telecom applications requiring transient overvoltage protection. ROHS3 compliance and equivalent environmental specifications ensure regulatory alignment.
The primary distinction is packaging format: the P6SMB13AHM3_B/I is supplied in Tape & Reel format, which is standard for high-volume production environments. Component selection should be based on procurement volume and assembly line requirements.
Frequently Asked Questions (FAQ)
Q: Can the P6SMB13AHM3_B/I be used as a direct replacement for the P6SMB13AHM3_A/I?
A: Yes. Both parts are electrically and thermally identical, with matching voltage ratings (11.1V reverse standoff, 18.2V clamping), current ratings (33A peak pulse), and power dissipation (600W). Both are housed in DO-214AA (SMB) surface mount packages and meet automotive AEC-Q101 qualification.
Q: What is the difference between the two part numbers?
A: The primary difference is product status and packaging format. The P6SMB13AHM3_A/I is obsolete, while the P6SMB13AHM3_B/I is active. The P6SMB13AHM3_B/I is supplied in Tape & Reel format, standard for production assembly.
Q: Are there any thermal or operating temperature differences?
A: No. Both parts operate across the identical temperature range of -65°C to 150°C (junction temperature) and maintain the same thermal performance characteristics.
Q: Do both parts meet the same compliance and qualification standards?
A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and hold AEC-Q101 automotive qualification. Both are suitable for telecom and automotive applications requiring transient voltage suppression.
Q: Can these parts be used interchangeably on the same PCB assembly?
A: Yes. Identical package specifications (DO-214AA/SMB) and mounting type (surface mount) ensure mechanical and electrical interchangeability on the same PCB layout without design modifications.
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