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SMBJ6.5AE3/TR13 Equivalent & Substitute Parts
Part Overview
The SMBJ6.5AE3/TR13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology. This surface mount component operates in the 6.5V reverse standoff voltage class and provides transient protection for general-purpose applications. The device is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1).
Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity. Substitutes maintain electrical and mechanical compatibility within the defined parameter tolerances for this TVS diode category.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 6.5 | V |
| Voltage - Breakdown (Min) | 7.22 | V |
| Voltage - Clamping (Max) @ Ipp | 11.2 | V |
| Current - Peak Pulse (10/1000µs) | 53.6 | A |
| Power - Peak Pulse | 600 | W |
| Package / Case | DO-214AA, SMB | - |
| Mounting Type | Surface Mount | - |
| Operating Temperature Range | -65 to 150 | °C (TJ) |
| Type | Zener | - |
| Unidirectional Channels | 1 | - |
| RoHS Status | ROHS3 Compliant | - |
| MSL Rating | 1 (Unlimited) | - |
Substitute Part Grouping Explanation
Substitution of the SMBJ6.5AE3/TR13 is determined by strict equivalence across the following critical parameters:
Voltage Parameters: Reverse standoff voltage of 6.5V, breakdown voltage minimum of 7.22V, and clamping voltage maximum of 11.2V must be maintained. These parameters define the protection threshold and response characteristics of the TVS diode.
Current and Power Ratings: Peak pulse current must be within the range of 53.6A to 56A at 10/1000µs pulse duration. Peak pulse power rating of 600W is consistent across all qualified substitutes.
Package and Mounting: All substitutes use DO-214AA (SMB) surface mount package with identical mechanical footprint and land pattern compatibility.
Compliance and Environmental: All substitutes maintain RoHS3 compliance, MSL 1 rating, and REACH unaffected status. Operating temperature range of -55°C to 150°C or -65°C to 150°C is acceptable.
Device Type: All substitutes are unidirectional Zener-type TVS diodes with single channel configuration.
Substitutes are classified as Direct Manufacturer equivalents or Similar alternatives based on parameter alignment and manufacturer designation.
Parameter Comparison
| Part Number | Manufacturer | Vwm (V) | Vb Min (V) | Vc Max (V) | Ipp (A) | Ppk (W) | Temp Range (°C) | Package | Classification |
|---|---|---|---|---|---|---|---|---|---|
| SMBJ6.5AE3/TR13 | Microchip Technology | 6.5 | 7.22 | 11.2 | 53.6 | 600 | -65 to 150 | DO-214AA, SMB | Main Part |
| SMBJ6.5A | Taiwan Semiconductor Corporation | 6.5 | 7.22 | 11.2 | 56 | 600 | -55 to 150 | DO-214AA, SMB | Direct Equivalent |
| SMBJ6.5A-13-F | Diodes Incorporated | 6.5 | 7.22 | 11.2 | 53.6 | 600 | -55 to 150 | DO-214AA, SMB | Direct Equivalent |
| SMBJ6.5A-E3/52 | Vishay General Semiconductor - Diodes Division | 6.5 | 7.22 | 11.2 | 53.6 | 600 | -55 to 150 | DO-214AA, SMB | Direct Equivalent |
| SMBJ6V5A | Taiwan Semiconductor Corporation | 6.5 | 7.22 | 11.2 | 53.6 | 600 | -55 to 150 | DO-214AA, SMB | Direct Equivalent |
| SMBJ6.5A-TR | STMicroelectronics | 6.5 | 7.2 | 11.2 | 56 | 600 | -55 to 150 | DO-214AA, SMB | Similar |
| SZ1SMB6.5AT3G | Littelfuse Inc. | 6.5 | 7.22 | 11.2 | 53.6 | 600 | -65 to 150 | DO-214AA, SMB | Similar |
Engineering Selection Recommendations
Direct Equivalent Selection: SMBJ6.5A (Taiwan Semiconductor Corporation), SMBJ6.5A-13-F (Diodes Incorporated), SMBJ6.5A-E3/52 (Vishay General Semiconductor), and SMBJ6V5A (Taiwan Semiconductor Corporation) are direct functional equivalents. These parts maintain identical voltage parameters, package specifications, and compliance certifications. Peak pulse current ratings of 53.6A to 56A fall within acceptable tolerance for this application class.
Similar Alternative Selection: SMBJ6.5A-TR (STMicroelectronics) and SZ1SMB6.5AT3G (Littelfuse Inc.) are classified as similar alternatives. Both maintain all critical voltage and power parameters. The SZ1SMB6.5AT3G includes automotive-grade qualification (AEC-Q101) and extended temperature range matching the original part (-65°C to 150°C), providing additional environmental robustness for demanding applications.
Compliance Verification: All substitute parts maintain RoHS3 compliance, MSL 1 rating, and REACH unaffected status, ensuring regulatory alignment with the original SMBJ6.5AE3/TR13.
Inventory Availability: Selection should consider current stock levels. Taiwan Semiconductor Corporation SMBJ6.5A offers highest inventory availability (17,957 pcs), while Littelfuse SZ1SMB6.5AT3G provides automotive-qualified alternative with 870 pcs in stock.
Frequently Asked Questions (FAQ)
Q: Can SMBJ6.5A (Taiwan Semiconductor Corporation) directly replace SMBJ6.5AE3/TR13 in production?
A: Yes. SMBJ6.5A maintains identical voltage parameters (6.5V Vwm, 7.22V Vb, 11.2V Vc), equivalent peak pulse current (56A vs. 53.6A), and identical package specification (DO-214AA, SMB). Operating temperature range is -55°C to 150°C versus -65°C to 150°C on the original part. For applications operating above -55°C, this substitution is fully compatible.
Q: What is the difference between SMBJ6.5A-E3/52 and SMBJ6.5AE3/TR13?
A: Both parts are manufactured to the same electrical specifications (6.5V Vwm, 11.2V Vc, 53.6A Ipp, 600W Ppk). The primary difference is manufacturer (Vishay vs. Microchip) and packaging designation (Cut Tape & Digi-Reel vs. Tape & Reel). Electrical performance and mechanical compatibility are equivalent.
Q: Is SZ1SMB6.5AT3G suitable for automotive applications?
A: SZ1SMB6.5AT3G is qualified to AEC-Q101 automotive standard and maintains operating temperature range of -65°C to 150°C, matching the original SMBJ6.5AE3/TR13. This part is appropriate for automotive-grade transient protection applications.
Q: Do all substitute parts use the same DO-214AA package?
A: Yes. All listed substitutes use DO-214AA (SMB) surface mount package with identical mechanical footprint, land pattern, and mounting compatibility. No PCB layout modifications are required for substitution.
Q: What is the peak pulse current tolerance across substitute parts?
A: Peak pulse current (Ipp) ranges from 53.6A to 56A across all substitutes. This variation is within acceptable tolerance for TVS diode application requirements and does not affect functional compatibility.
Q: Are all substitutes RoHS3 compliant?
A: Yes. All listed substitute parts maintain RoHS3 compliance, MSL 1 (Unlimited) moisture sensitivity rating, and REACH unaffected status, ensuring regulatory alignment with the original SMBJ6.5AE3/TR13.
Q: Can SMBJ6.5A-TR (STMicroelectronics) be used in place of the original part?
A: Yes. SMBJ6.5A-TR maintains all critical electrical parameters (6.5V Vwm, 11.2V Vc, 56A Ipp, 600W Ppk) and identical DO-214AA package specification. Breakdown voltage minimum is 7.2V versus 7.22V on the original part, which is within acceptable tolerance. Operating temperature range is -55°C to 150°C.
Q: What inventory considerations should guide substitute selection?
A: SMBJ6.5A (Taiwan Semiconductor Corporation) offers the highest current inventory at 17,957 pcs. SMBJ6.5A-TR (STMicroelectronics) provides 10,400 pcs. For applications requiring automotive qualification, SZ1SMB6.5AT3G (Littelfuse) is available with 870 pcs. Selection should balance availability with application-specific requirements.
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