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SMCJ15CA-M3/9AT Equivalent & Substitute Parts
Part Overview
The SMCJ15CA-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 is designed for general-purpose transient voltage protection applications. The part is Active status and ROHS3 compliant, making it suitable for modern electronic designs requiring ESD and surge protection. Equivalent and substitute parts are identified based on matching electrical characteristics and package compatibility to ensure functional interchangeability in circuit protection applications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 15 | V |
| Voltage - Breakdown (Min) | 16.7 | V |
| Voltage - Clamping (Max) @ Ipp | 24.4 | V |
| Current - Peak Pulse (10/1000µs) | 61.5 | A |
| Power - Peak Pulse | 1500 | W |
| Operating Temperature Range | -55 to 150 | °C |
| Mounting Type | Surface Mount | - |
| Package / Case | DO-214AB, SMC | - |
| Type | Zener | - |
| Bidirectional Channels | 1 | - |
| RoHS Status | ROHS3 Compliant | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | - |
Substitute Part Grouping Explanation
Substitute parts for the SMCJ15CA-M3/9AT are grouped based on the following electrical and mechanical criteria:
Group 1: Direct Electrical Equivalents (Same Electrical Specifications)
- Voltage - Reverse Standoff: 15V
- Voltage - Breakdown (Min): 16.7V
- Voltage - Clamping (Max) @ Ipp: 24.4V
- Current - Peak Pulse (10/1000µs): 61.5A
- Power - Peak Pulse: 1500W
- Package / Case: DO-214AB, SMC
- Operating Temperature: -55°C to 150°C
Parts meeting all Group 1 criteria:
- SMCJ15CA-E3/57T (Vishay, Cut Tape packaging)
- SMCJ15CA (EVVO Semi, Cut Tape & Digi-Reel packaging)
- SMCJ15CA-13-F (Diodes Incorporated, Tape & Reel packaging)
Group 2: Higher Performance Equivalents (Enhanced Specifications)
- Voltage - Reverse Standoff: 15V
- Voltage - Breakdown (Min): 16.7V
- Voltage - Clamping (Max) @ Ipp: 24.4V
- Current - Peak Pulse (10/1000µs): 123A (doubled)
- Power - Peak Pulse: 3000W (doubled)
- Package / Case: DO-214AB, SMC
- Operating Temperature: -55°C to 150°C or higher
Parts meeting Group 2 criteria:
- SMDJ15CA (Alpha & Omega Semiconductor Inc., Tape & Reel packaging)
- SMLJ15CA-TP (Micro Commercial Co, Tape & Reel packaging)
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff (V) | Voltage - Breakdown Min (V) | Voltage - Clamping Max @ Ipp (V) | Current - Peak Pulse (A) | Power - Peak Pulse (W) | Operating Temp (°C) | Package | Packaging Type |
|---|---|---|---|---|---|---|---|---|---|
| SMCJ15CA-M3/9AT | Vishay General Semiconductor | 15 | 16.7 | 24.4 | 61.5 | 1500 | -55 to 150 | DO-214AB, SMC | Tape & Reel |
| SMCJ15CA-E3/57T | Vishay General Semiconductor | 15 | 16.7 | 24.4 | 61.5 | 1500 | -55 to 150 | DO-214AB, SMC | Cut Tape |
| SMCJ15CA | EVVO Semi | 15 | 16.7 | 24.4 | 61.5 | 1500 | -55 to 150 | DO-214AB, SMC | Cut Tape & Digi-Reel |
| SMCJ15CA-13-F | Diodes Incorporated | 15 | 16.7 | 24.4 | 61.5 | 1500 | -55 to 150 | DO-214AB, SMC | Tape & Reel |
| SMDJ15CA | Alpha & Omega Semiconductor Inc. | 15 | 16.7 | 24.4 | 123 | 3000 | -55 to 150 | DO-214AB, SMC | Tape & Reel |
| SMLJ15CA-TP | Micro Commercial Co | 15 | 16.7 | 24.4 | 123 | 3000 | -55 to 175 | DO-214AB, SMC | Tape & Reel |
Engineering Selection Recommendations
Direct Substitution (Group 1 Parts): SMCJ15CA-E3/57T, SMCJ15CA, and SMCJ15CA-13-F provide identical electrical performance to the SMCJ15CA-M3/9AT. All are Active status products with ROHS3 compliance and MSL 1 rating. Selection among these parts depends on packaging availability and procurement requirements. SMCJ15CA-E3/57T maintains Vishay manufacturer continuity. SMCJ15CA offers higher inventory availability through EVVO Semi. SMCJ15CA-13-F is available through Diodes Incorporated.
Enhanced Performance Substitution (Group 2 Parts): SMDJ15CA and SMLJ15CA-TP provide doubled peak pulse current (123A) and power dissipation (3000W) while maintaining identical voltage characteristics. These parts are suitable for applications requiring higher transient energy absorption. SMLJ15CA-TP extends the operating temperature range to 175°C. Both parts are Active status with ROHS3 compliance. Selection of Group 2 parts is appropriate when circuit protection margins require enhanced surge handling capability.
Frequently Asked Questions (FAQ)
Q: Can SMCJ15CA-E3/57T replace SMCJ15CA-M3/9AT directly? A: Yes. Both parts share identical electrical specifications: 15V reverse standoff, 16.7V breakdown minimum, 24.4V clamping maximum, and 61.5A peak pulse current. The difference is packaging type (Cut Tape vs. Tape & Reel). Both are ROHS3 compliant with MSL 1 rating.
Q: What is the difference between Group 1 and Group 2 substitute parts? A: Group 1 parts (SMCJ15CA-E3/57T, SMCJ15CA, SMCJ15CA-13-F) match the original part's 61.5A peak pulse current and 1500W power rating. Group 2 parts (SMDJ15CA, SMLJ15CA-TP) provide doubled performance: 123A peak pulse current and 3000W power rating. Voltage characteristics remain identical across both groups.
Q: Does packaging type affect electrical performance? A: No. Packaging type (Tape & Reel, Cut Tape, Digi-Reel) affects procurement and assembly logistics only. Electrical performance is determined by the part's internal die and design, not packaging format.
Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant. SMCJ15CA-M3/9AT, SMCJ15CA-E3/57T, SMCJ15CA, SMCJ15CA-13-F, SMDJ15CA, and SMLJ15CA-TP all meet ROHS3 requirements.
Q: Can SMLJ15CA-TP be used in place of SMCJ15CA-M3/9AT? A: Yes, with consideration for enhanced specifications. SMLJ15CA-TP provides identical voltage protection (15V standoff, 24.4V clamping) but with doubled current and power handling (123A, 3000W vs. 61.5A, 1500W). Operating temperature extends to 175°C. This substitution is valid and provides improved protection margins.
Q: What does MSL 1 (Unlimited) mean for these parts? A: MSL 1 indicates the lowest moisture sensitivity level. These parts have unlimited shelf life and do not require special moisture control during storage or handling, simplifying inventory management.
Q: Are there any REACH or ECCN restrictions on these parts? A: All listed parts are REACH Unaffected or have REACH status not specified as restricted. All parts are classified as ECCN EAR99, indicating standard commercial classification without export restrictions.
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