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SMCJ160CA-M3/9AT Equivalent & Substitute Parts
Part Overview
The SMCJ160CA-M3/9AT is a bidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the DO-214AB (SMC) package and provides transient overvoltage protection for general-purpose applications. The part is Active status and RoHS3 compliant, making it suitable for modern electronic designs requiring surge and ESD protection.
Substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when alternative manufacturers offer equivalent electrical performance with improved availability or cost efficiency.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 160 | V |
| Voltage - Breakdown (Min) | 178 | V |
| Voltage - Clamping (Max) @ Ipp | 259 | V |
| Current - Peak Pulse (10/1000µs) | 5.8 | A |
| Power - Peak Pulse | 1500 | W |
| Operating Temperature Range | -55 to 150 | °C |
| Mounting Type | Surface Mount | - |
| Package / Case | DO-214AB, SMC | - |
| Bidirectional Channels | 1 | - |
| Type | Zener | - |
Substitute Part Grouping Explanation
Substitute parts for the SMCJ160CA-M3/9AT are classified based on strict electrical and mechanical parameter matching:
Primary Substitutes (Electrical & Mechanical Equivalents): Parts that maintain identical or equivalent specifications across all critical parameters: 160V reverse standoff voltage, 178V minimum breakdown voltage, 259V maximum clamping voltage, 5.8A peak pulse current, 1500W peak pulse power, DO-214AB SMC package, and -55°C to 150°C operating temperature range.
Secondary Substitutes (Enhanced Performance): Parts that exceed the original specifications in peak pulse current and power dissipation while maintaining voltage parameters and package compatibility. These provide superior transient protection capability within the same form factor.
Compatibility Criteria:
- Voltage ratings (standoff, breakdown, clamping) must match or exceed specified values
- Peak pulse current and power must be equal or greater
- Package must be DO-214AB or SMC equivalent
- Operating temperature range must encompass or match the original specification
- Surface mount configuration required
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff (V) | Voltage - Breakdown Min (V) | Voltage - Clamping Max (V) | Current - Peak Pulse (A) | Power - Peak Pulse (W) | Operating Temp (°C) | Package | Availability |
|---|---|---|---|---|---|---|---|---|---|
| SMCJ160CA-M3/9AT | Vishay General Semiconductor | 160 | 178 | 259 | 5.8 | 1500 | -55 to 150 | DO-214AB (SMC) | 1127 Pcs |
| SMCJ160CA-E3/57T | Vishay General Semiconductor | 160 | 178 | 259 | 5.8 | 1500 | -55 to 150 | DO-214AB (SMCJ) | 34400 Pcs |
| SMCJ160CA | Fairchild Semiconductor | 160 | 178 | 259 | 5.8 | 1500 | -55 to 150 | DO-214AB (SMC) | 23100 Pcs |
| SMCJ160CA-TP | Micro Commercial Co | 160 | 178 | 259 | 5.8 | 1500 | -55 to 175 | DO-214AB (SMC) | 3728 Pcs |
| SMCJ160CA-13-F | Diodes Incorporated | 160 | 178 | 259 | 5.8 | 1500 | -55 to 150 | DO-214AB (SMC) | 3886 Pcs |
| SMDJ160CA | Alpha & Omega Semiconductor Inc. | 160 | 178 | 259 | 11.6 | 3000 | -55 to 150 | DO-214AB (SMC) | 7200 Pcs |
| 5.0SMDJ160CA | MDE Semiconductor Inc | 160 | 178 | 259 | 19.3 | 5000 | -55 to 150 | DO-214AB (SMCJ) | 9100 Pcs |
Engineering Selection Recommendations
Direct Equivalents (Recommended for 1:1 Replacement):
SMCJ160CA-E3/57T from Vishay General Semiconductor offers the highest inventory availability (34400 Pcs) with identical electrical specifications and RoHS3 compliance. This part is the preferred substitute when supply of the original SMCJ160CA-M3/9AT is constrained.
SMCJ160CA from Fairchild Semiconductor provides equivalent performance with substantial inventory (23100 Pcs) and maintains all critical voltage and current parameters. Packaging is specified as Bulk rather than Tape & Reel.
SMCJ160CA-13-F from Diodes Incorporated delivers identical electrical performance with RoHS3 and REACH compliance certification, suitable for applications requiring full regulatory documentation.
Enhanced Performance Alternatives:
SMDJ160CA from Alpha & Omega Semiconductor Inc. doubles the peak pulse current (11.6A) and power dissipation (3000W) while maintaining voltage specifications and package compatibility. This part is suitable for applications requiring higher transient energy absorption.
5.0SMDJ160CA from MDE Semiconductor Inc. provides the highest performance envelope with 19.3A peak pulse current and 5000W power dissipation. This part accommodates more severe transient events within the same DO-214AB form factor.
SMCJ160CA-TP from Micro Commercial Co. extends the operating temperature range to 175°C, providing thermal margin for high-temperature applications while maintaining standard electrical specifications.
All substitute parts maintain RoHS3 compliance and Moisture Sensitivity Level 1 (Unlimited) rating, ensuring compatibility with modern manufacturing processes.
Frequently Asked Questions (FAQ)
Q: Can SMCJ160CA-E3/57T replace SMCJ160CA-M3/9AT directly?
A: Yes. Both parts share identical electrical specifications (160V standoff, 259V clamping, 5.8A peak pulse, 1500W power) and DO-214AB SMC package configuration. The primary difference is packaging format (Tape & Reel vs. Tape & Reel variant) and inventory source. SMCJ160CA-E3/57T is a direct functional equivalent.
Q: What is the difference between SMDJ160CA and SMCJ160CA-M3/9AT?
A: SMDJ160CA maintains identical voltage ratings and package but provides double the peak pulse current (11.6A vs. 5.8A) and power dissipation (3000W vs. 1500W). This enhanced performance allows the part to suppress larger transient events. Both are surface mount DO-214AB components suitable for the same circuit topology.
Q: Is 5.0SMDJ160CA compatible with the original design?
A: Yes, from an electrical and mechanical standpoint. The part maintains 160V standoff and 259V clamping voltages with DO-214AB SMC packaging. However, it provides significantly higher peak pulse current (19.3A) and power (5000W). Compatibility depends on circuit design; the enhanced performance does not create incompatibility but may be unnecessary for applications requiring only 5.8A suppression capability.
Q: Does operating temperature range affect substitution?
A: SMCJ160CA-TP operates to 175°C versus 150°C for the original part. This extended range is compatible with the original design and provides additional thermal margin. All other substitute parts maintain the -55°C to 150°C range matching the original specification.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts carry RoHS3 compliance certification, ensuring compatibility with modern manufacturing and environmental regulations. Moisture Sensitivity Level 1 (Unlimited) is maintained across all alternatives.
Q: What packaging formats are available?
A: Substitute parts are available in Tape & Reel (TR) and Bulk packaging. SMCJ160CA-E3/57T and SMCJ160CA-TP are supplied in Tape & Reel format suitable for automated assembly. SMCJ160CA from Fairchild is available in Bulk packaging. Package selection depends on production volume and assembly process requirements; electrical performance is independent of packaging format.
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