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SMBJ64A-13 Transient Voltage Suppressor Equivalent & Substitute Parts
Part Overview
The SMBJ64A-13 is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated in SMB (DO-214AA) surface mount package. This component is designed for general-purpose transient voltage suppression applications with a 64V reverse standoff voltage and 103V maximum clamping voltage. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Reverse Standoff (Typ) | 64V |
| Voltage - Breakdown (Min) | 71.1V |
| Voltage - Clamping (Max) @ Ipp | 103V |
| Current - Peak Pulse (10/1000µs) | 5.8A |
| Power - Peak Pulse | 600W |
| Operating Temperature | -55°C ~ 150°C |
| Mounting Type | Surface Mount |
| Package / Case | DO-214AA (SMB) |
| Type | Zener |
| Unidirectional Channels | 1 |
Substitute Part Grouping Explanation
Substitution eligibility for the SMBJ64A-13 is determined by the following critical parameters:
- Voltage Rating Match: Reverse standoff voltage of 64V, breakdown minimum of 71.1V, and clamping voltage maximum of 103V
- Current Handling: Peak pulse current of 5.8A minimum at 10/1000µs pulse width
- Power Dissipation: 600W peak pulse power rating
- Package Compatibility: Surface mount configuration with DO-214AA (SMB) or equivalent footprint
- Temperature Range: Operating range of -55°C to 150°C
- Device Type: Unidirectional Zener TVS diode
Substitute parts are grouped into two categories based on package type: SMB package variants (direct footprint compatibility) and alternative surface mount packages (SOD-128) requiring board layout modification.
Parameter Comparison
| Parameter | SMBJ64A-13 (Diodes Inc.) | SMBJ64A (Meritek) | PTVS64VP1UP,115 (Nexperia) |
|---|---|---|---|
| Manufacturer | Diodes Incorporated | Meritek | Nexperia USA Inc. |
| Voltage - Reverse Standoff (Typ) | 64V | 64V | 64V |
| Voltage - Breakdown (Min) | 71.1V | 71.1V | 71.1V |
| Voltage - Clamping (Max) @ Ipp | 103V | 103V | 103V |
| Current - Peak Pulse (10/1000µs) | 5.8A | 5.83A | 5.8A |
| Power - Peak Pulse | 600W | 600W | 600W |
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C | -55°C ~ 150°C (TA) |
| Package / Case | DO-214AA (SMB) | DO-214AA (SMB) | SOD-128 |
| Product Status | Discontinued | Active | Active |
| RoHS Status | Non-compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
SMBJ64A (Meritek) is the primary substitute for SMBJ64A-13. This part maintains identical electrical specifications, matching voltage ratings, current handling, and power dissipation. The SMB package provides direct footprint compatibility without board redesign. Meritek's SMBJ64A is in active production status with ROHS3 compliance, addressing the RoHS non-compliance of the discontinued Diodes Incorporated original.
PTVS64VP1UP,115 (Nexperia) is an alternative substitute with equivalent electrical performance. This part is manufactured by Nexperia USA Inc. and carries AEC-Q101 automotive qualification. The SOD-128 package requires board layout modification and is not a direct footprint replacement. Selection of this alternative is appropriate when automotive-grade qualification is a design requirement or when SOD-128 package integration is feasible.
Both substitute parts maintain the critical electrical parameters: 64V reverse standoff, 71.1V minimum breakdown, 103V maximum clamping, and 5.8A peak pulse current. Both are ROHS3 compliant and in active production.
Frequently Asked Questions (FAQ)
Q: Can SMBJ64A (Meritek) be used as a direct replacement for SMBJ64A-13?
A: Yes. The Meritek SMBJ64A matches all critical electrical parameters and uses the identical SMB package. No board modifications are required.
Q: What is the difference between SMBJ64A and PTVS64VP1UP,115?
A: Both parts have identical voltage and current ratings. The primary difference is package type: SMBJ64A uses SMB (DO-214AA) while PTVS64VP1UP,115 uses SOD-128. The Nexperia part includes AEC-Q101 automotive qualification. Package selection depends on board layout constraints and application requirements.
Q: Does the peak pulse current difference between 5.8A and 5.83A affect substitution?
A: No. The 5.83A specification for Meritek SMBJ64A exceeds the 5.8A requirement, providing equivalent or superior performance within the same application envelope.
Q: Are there RoHS compliance implications when substituting?
A: The original SMBJ64A-13 is RoHS non-compliant. Both substitute parts (Meritek SMBJ64A and Nexperia PTVS64VP1UP,115) are ROHS3 compliant, meeting current environmental standards.
Q: Can PTVS64VP1UP,115 be used without board redesign?
A: No. The SOD-128 package has a different footprint than the SMB package. Board layout modification is required for this substitution.
Q: What is the inventory status of substitute parts?
A: Meritek SMBJ64A has 23,100 pieces in stock. Nexperia PTVS64VP1UP,115 has 4,129 pieces in stock. Both are actively manufactured and available.
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