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SMAJ6.0A-13 TVS Diode Equivalent & Substitute Parts
Part Overview
The SMAJ6.0A-13 is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated in the DO-214AC (SMA) surface mount package. This component provides 6V reverse standoff voltage with 10.3V maximum clamping voltage and 38.8A peak pulse current capability for general-purpose transient voltage suppression applications.
The SMAJ6.0A-13 is currently discontinued at DiGi Electronics. Equivalent and substitute parts are available from multiple manufacturers with identical or comparable electrical specifications, offering active product status and improved compliance certifications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 6 | V |
| Voltage - Breakdown (Min) | 6.67 | V |
| Voltage - Clamping (Max) @ Ipp | 10.3 | V |
| Current - Peak Pulse (10/1000µs) | 38.8 | A |
| Power - Peak Pulse | 400 | W |
| Operating Temperature Range | -55 to 150 | °C |
| Package / Case | DO-214AC, SMA | — |
| Mounting Type | Surface Mount | — |
| Type | Zener | — |
| Unidirectional Channels | 1 | — |
Substitute Part Grouping Explanation
Substitute parts for the SMAJ6.0A-13 are classified based on strict electrical and mechanical compatibility criteria:
Primary Substitutes (Identical Electrical Specifications) Parts meeting all key parameters: 6V reverse standoff voltage, 6.67V minimum breakdown voltage, 10.3V maximum clamping voltage, 38.8A peak pulse current, 400W peak pulse power, DO-214AC (SMA) package, and surface mount configuration. These parts differ only in manufacturer, packaging format (tape & reel vs. cut tape), or RoHS compliance status.
Package-Compatible Substitutes (Different Package) The PTVS6V0S1UR,115 maintains identical electrical specifications but uses the SOD-123W package instead of DO-214AC (SMA). This substitute requires PCB layout modification and is suitable only when space constraints or design requirements permit package change.
Performance-Variant Substitutes (Higher Clamping Voltage) The SMA6J6.0A-TR and SMAJ6.0A-TR exhibit higher clamping voltages (13.7V) and different peak pulse current ratings compared to the original specification. These parts are not direct substitutes and require circuit re-evaluation.
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff (V) | Voltage - Clamping (Max) @ Ipp (V) | Current - Peak Pulse (A) | Power - Peak Pulse (W) | Package | Operating Temp (°C) | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| SMAJ6.0A-13 | Diodes Incorporated | 6 | 10.3 | 38.8 | 400 | DO-214AC, SMA | -55 to 150 | Discontinued | Non-compliant |
| SMAJ6.0A-13-F | Diodes Incorporated | 6 | 10.3 | 38.8 | 400 | DO-214AC, SMA | -55 to 150 | Active | ROHS3 Compliant |
| SMAJ6.0A | MDD | 6 | 10.3 | 38.8 | 400 | DO-214AC, SMA | -50 to 150 | Active | ROHS3 Compliant |
| SMAJ6.0A-E3/5A | Vishay General Semiconductor - Diodes Division | 6 | 10.3 | 38.8 | 400 | DO-214AC, SMA | -55 to 150 | Active | ROHS3 Compliant |
| SMAJ6.0A-E3/61 | Vishay General Semiconductor - Diodes Division | 6 | 10.3 | 38.8 | 400 | DO-214AC, SMA | -55 to 150 | Active | ROHS3 Compliant |
| SMAJ6.0A-TP | Micro Commercial Co | 6 | 10.3 | 38.8 | 400 | DO-214AC, SMA | -55 to 175 | Active | ROHS3 Compliant |
| PTVS6V0S1UR,115 | Nexperia USA Inc. | 6 | 10.3 | 38.8 | 400 | SOD-123W | -55 to 150 | Active | ROHS3 Compliant |
| SMA6J6.0A-TR | STMicroelectronics | 6 | 13.7 | 290 (8/20µs) | 600 | DO-214AC, SMA | -55 to 175 | Active | ROHS3 Compliant |
| SMAJ6.0A-TR | STMicroelectronics | 6 | 13.7 | 170 (8/20µs) | 400 | DO-214AC, SMA | -55 to 150 | Active | ROHS3 Compliant |
Engineering Selection Recommendations
Direct Replacement (Identical Specifications)
SMAJ6.0A-13-F (Diodes Incorporated) is the direct replacement for SMAJ6.0A-13. Both parts share identical electrical parameters and package configuration. SMAJ6.0A-13-F is active in production and ROHS3 compliant, addressing the compliance gap of the discontinued original part.
SMAJ6.0A-E3/5A and SMAJ6.0A-E3/61 (Vishay General Semiconductor - Diodes Division) provide equivalent electrical performance with active product status and ROHS3 compliance. These parts are available in higher inventory quantities.
SMAJ6.0A-TP (Micro Commercial Co) offers identical electrical specifications with extended operating temperature range (-55 to 175°C) and active product status.
Alternative Manufacturer Option
SMAJ6.0A (MDD) provides equivalent electrical performance with active status and ROHS3 compliance. Operating temperature range is -50 to 150°C, which is acceptable for most applications requiring the original -55 to 150°C range, with the exception of extreme low-temperature environments below -50°C.
Package-Variant Substitute
PTVS6V0S1UR,115 (Nexperia USA Inc.) maintains identical electrical specifications but uses SOD-123W package instead of DO-214AC (SMA). This substitute requires PCB redesign and is suitable only when package footprint change is acceptable. The part includes AEC-Q101 automotive qualification.
Non-Recommended Substitutes
SMA6J6.0A-TR and SMAJ6.0A-TR (STMicroelectronics) exhibit 13.7V clamping voltage and higher peak pulse current specifications. These parts do not meet the original 10.3V clamping voltage requirement and require full circuit re-evaluation before use.
Frequently Asked Questions (FAQ)
Q: Can SMAJ6.0A-13-F be used as a direct replacement for SMAJ6.0A-13?
A: Yes. SMAJ6.0A-13-F is the direct equivalent with identical electrical specifications (6V standoff, 10.3V clamping, 38.8A peak pulse current), DO-214AC (SMA) package, and surface mount configuration. The primary difference is active product status and ROHS3 compliance.
Q: What is the difference between SMAJ6.0A-E3/5A and SMAJ6.0A-E3/61?
A: Both parts are manufactured by Vishay and share identical electrical specifications and package configuration. The suffix designates different packaging formats or tape reel specifications. Electrical performance is equivalent for circuit applications.
Q: Can PTVS6V0S1UR,115 replace SMAJ6.0A-13 in existing designs?
A: PTVS6V0S1UR,115 provides identical electrical specifications but uses SOD-123W package instead of DO-214AC (SMA). Direct PCB substitution is not possible without layout modification. This part is suitable only when package change is acceptable and PCB redesign is feasible.
Q: Why are SMA6J6.0A-TR and SMAJ6.0A-TR not recommended as substitutes?
A: These parts exhibit 13.7V clamping voltage compared to the original 10.3V specification. Higher clamping voltage may result in inadequate transient suppression in circuits designed for 10.3V maximum clamp level. Full circuit re-evaluation is required before use.
Q: What is the temperature range difference between SMAJ6.0A (MDD) and SMAJ6.0A-13?
A: SMAJ6.0A (MDD) operates from -50 to 150°C, while SMAJ6.0A-13 operates from -55 to 150°C. The 5°C difference at the lower temperature limit is acceptable for most applications. Use SMAJ6.0A (MDD) only if circuit operation below -50°C is not required.
Q: Are all substitute parts ROHS3 compliant?
A: All active substitute parts listed are ROHS3 compliant. The original SMAJ6.0A-13 is RoHS non-compliant. Compliance upgrade is achieved through all recommended substitutes.
Q: What inventory levels are available for each substitute?
A: SMAJ6.0A (MDD) offers the highest inventory at 20,400 pieces. SMAJ6.0A-E3/61 provides 32,400 pieces. SMAJ6.0A-13-F offers 7,689 pieces. Verify current availability with your supplier before design finalization.
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