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SMBJ75E3/TR13 Equivalent & Substitute Parts
Part Overview
The SMBJ75E3/TR13 is an active-status Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This unidirectional zener-type TVS diode operates within a -65°C to 150°C temperature range and is packaged in the DO-214AA (SMB) form factor. Alternative equivalent parts are necessary to address inventory constraints, supply chain disruptions, or specific packaging requirements while maintaining electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 75 | V |
| Voltage - Breakdown (Min) | 83.3 | V |
| Voltage - Clamping (Max) @ Ipp | 134 | V |
| Current - Peak Pulse (10/1000µs) | 4.5 | A |
| Power - Peak Pulse | 600 | W |
| Operating Temperature Range | -65°C ~ 150°C | TJ |
| Package / Case | DO-214AA, SMB | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the SMBJ75E3/TR13 are qualified based on the following criteria:
Electrical Compatibility Parameters:
- Voltage - Reverse Standoff (Typ): 75V (exact match required)
- Voltage - Breakdown (Min): 83.3V (exact match required)
- Current - Peak Pulse (10/1000µs): minimum 4.5A
- Power - Peak Pulse: 600W (minimum)
- Unidirectional channels: 1
- Type: Zener
Mechanical and Physical Compatibility Parameters:
- Package / Case: DO-214AA (SMB)
- Mounting Type: Surface Mount
- Moisture Sensitivity Level (MSL): 1 (Unlimited)
Compliance and Status Requirements:
- Product Status: Active
- RoHS Status: ROHS3 Compliant
- REACH Status: REACH Unaffected
The identified substitute parts meet all mandatory electrical specifications and mechanical requirements necessary for direct circuit application without design modifications.
Parameter Comparison
| Parameter | SMBJ75E3/TR13 (Microchip) | SMBJ75A (Meritek) | SMBJ75A-13-F (Diodes Inc.) |
|---|---|---|---|
| Voltage - Reverse Standoff (Typ) | 75V | 75V | 75V |
| Voltage - Breakdown (Min) | 83.3V | 83.3V | 83.3V |
| Voltage - Clamping (Max) @ Ipp | 134V | 121V | 121V |
| Current - Peak Pulse (10/1000µs) | 4.5A | 4.96A | 4.9A |
| Power - Peak Pulse | 600W | 600W | 600W |
| Operating Temperature Range | -65°C ~ 150°C | -55°C ~ 150°C | -55°C ~ 150°C |
| Package / Case | DO-214AA, SMB | DO-214AA (SMB) | DO-214AA, SMB |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Unidirectional Channels | 1 | 1 | 1 |
| Type | Zener | Zener | Zener |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active | Active |
Engineering Selection Recommendations
SMBJ75A (Meritek) and SMBJ75A-13-F (Diodes Incorporated) are electrically and mechanically compatible substitutes for the SMBJ75E3/TR13. All three parts are ROHS3 Compliant and REACH Unaffected, meeting current regulatory standards for electronic components. Both substitute parts maintain the same 75V reverse standoff voltage and 83.3V minimum breakdown voltage as the original part.
The SMBJ75A-13-F (Diodes Incorporated) variant is available in higher inventory volume (29,446 pcs) with identical packaging specification (Tape & Reel) matching the original part's distribution format. The SMBJ75A (Meritek) offering provides 4,335 pcs of available inventory with marginally higher peak pulse current capability (4.96A vs. 4.5A). Both substitute parts are suitable for direct replacement based on active product status and equivalent electrical specifications.
Frequently Asked Questions (FAQ)
Q: Can SMBJ75A (Meritek) or SMBJ75A-13-F (Diodes Incorporated) be used as direct replacements for SMBJ75E3/TR13?
A: Yes. Both substitute parts share the same 75V reverse standoff voltage, 83.3V breakdown voltage, 600W peak pulse power rating, DO-214AA (SMB) package, and surface-mount configuration. All three parts are ROHS3 Compliant and MSL 1 rated.
Q: What are the differences in clamping voltage between the original and substitute parts?
A: The SMBJ75E3/TR13 clamps at 134V maximum, while both SMBJ75A variants clamp at 121V maximum. The lower clamping voltage provides slightly tighter voltage protection margins and represents the primary electrical distinction between these parts.
Q: Do the substitute parts have the same temperature operating range?
A: The SMBJ75E3/TR13 operates from -65°C to 150°C. Both SMBJ75A variants operate from -55°C to 150°C. The substitute parts have a narrower lower temperature specification by 10°C. Applications requiring operation below -55°C require the original SMBJ75E3/TR13 specification.
Q: Are the substitute parts available in the same packaging format?
A: The SMBJ75A-13-F is supplied in Tape & Reel (TR) packaging matching the original part's distribution format. The SMBJ75A (Meritek) variant does not specify a packaging format in available data.
Q: Do all three parts comply with current environmental regulations?
A: All three parts are ROHS3 Compliant and REACH Unaffected, meeting current electronic component environmental standards.
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