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SMCJ6.0C Transient Voltage Suppressor Equivalent & Substitute Parts
Part Overview
The SMCJ6.0C is a bidirectional Zener transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. Packaged in DO-214AB (SMC), this component provides 6V reverse standoff voltage with 10.82V maximum clamping voltage at peak pulse current of 145.7A and 1500W peak pulse power dissipation.
The SMCJ6.0C is classified as obsolete. Equivalent and substitute parts listed below are active products that maintain electrical and mechanical compatibility within specified parameter tolerances, enabling direct replacement in circuit designs.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 6 | V |
| Voltage - Breakdown (Min) | 6.32 | V |
| Voltage - Clamping (Max) @ Ipp | 10.82 | V |
| Current - Peak Pulse (10/1000µs) | 145.7 | 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 | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the SMCJ6.0C are grouped based on electrical parameter compatibility within the following criteria:
Primary Substitution Parameters:
- Voltage - Reverse Standoff: 6V (fixed)
- Voltage - Clamping (Max) @ Ipp: 10.3V to 10.82V range
- Current - Peak Pulse: 145.6A to 145.7A (standard rating)
- Power - Peak Pulse: 1500W (standard rating)
- Package / Case: DO-214AB, SMC (mechanical compatibility)
- Mounting Type: Surface Mount
- Type: Zener, Bidirectional
Secondary Substitution Parameters (Higher Power Rating):
- Current - Peak Pulse: 291.3A (double rating)
- Power - Peak Pulse: 3000W (double rating)
- All other electrical parameters maintained at 6V standoff, 10.3V clamping
Substitutes maintain the same reverse standoff voltage and clamping voltage range, ensuring circuit protection performance equivalence. Parts with higher peak pulse current and power ratings (SMLJ series) provide enhanced transient suppression capability while maintaining electrical compatibility.
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff (V) | Voltage - Clamping (Max) @ Ipp (V) | Current - Peak Pulse (A) | Power - Peak Pulse (W) | Operating Temperature (°C) | Package | Product Status |
|---|---|---|---|---|---|---|---|---|
| SMCJ6.0C | Littelfuse Inc. | 6 | 10.82 | 145.7 | 1500 | -55 to 150 | DO-214AB, SMC | Obsolete |
| SMCJ6.0CA | MDD | 6 | 10.3 | 145.7 | 1500 | -50 to 150 | DO-214AB, SMC | Active |
| SMCJ6.0CA-13-F | Diodes Incorporated | 6 | 10.3 | 145.6 | 1500 | -55 to 150 | DO-214AB, SMC | Active |
| SMCJ6.0CA-TP | Micro Commercial Co | 6 | 10.3 | 145.7 | 1500 | -55 to 175 | DO-214AB, SMC | Active |
| SMCJ6.0CAE3/TR13 | Microchip Technology | 6 | 10.3 | 145.6 | 1500 | -65 to 150 | DO-214AB, SMC | Active |
| SMCJ6.0CE3/TR13 | Microchip Technology | 6 | 11.4 | 131.6 | 1500 | -65 to 150 | DO-214AB, SMC | Active |
| SMCJ6V0CA | Fairchild Semiconductor | 6 | 10.3 | 145.6 | 1500 | — | DO-214AB, SMC | Active |
| SMLJ6.0CA | Bourns Inc. | 6 | 10.3 | 291.3 | 3000 | -55 to 150 | DO-214AB, SMC | Active |
| SMLJ6.0CA-TP | Micro Commercial Co | 6 | 10.3 | 291.3 | 3000 | -55 to 175 | DO-214AB, SMC | Active |
| SMLJ6.0CAE3/TR13 | Microchip Technology | 6 | 10.3 | 291.3 | 3000 | -55 to 150 | DO-214AB, SMC | Active |
Engineering Selection Recommendations
Standard Rating Substitutes (1500W, 145.6–145.7A):
SMCJ6.0CA (MDD), SMCJ6.0CA-13-F (Diodes Incorporated), SMCJ6.0CA-TP (Micro Commercial Co), SMCJ6.0CAE3/TR13 (Microchip Technology), and SMCJ6V0CA (Fairchild Semiconductor) are direct electrical equivalents to the SMCJ6.0C. All maintain 6V reverse standoff voltage, 10.3V clamping voltage, and 1500W peak pulse power rating. These parts are active products with ROHS3 compliance and MSL 1 rating. Selection among these substitutes depends on packaging format (Tape & Reel or Bulk) and operating temperature requirements. SMCJ6.0CA-TP and SMCJ6.0CAE3/TR13 support extended temperature ranges (-55°C to 175°C and -65°C to 150°C respectively).
Variant Substitute (1500W, 131.6A, 11.4V Clamping):
SMCJ6.0CE3/TR13 (Microchip Technology) maintains the same 6V reverse standoff voltage and 1500W power rating but exhibits 11.4V maximum clamping voltage and 131.6A peak pulse current. This variant is suitable for applications where slightly higher clamping voltage is acceptable and lower peak pulse current is sufficient.
Enhanced Rating Substitutes (3000W, 291.3A):
SMLJ6.0CA (Bourns Inc.), SMLJ6.0CA-TP (Micro Commercial Co), and SMLJ6.0CAE3/TR13 (Microchip Technology) provide double the peak pulse current (291.3A) and power dissipation (3000W) while maintaining 6V reverse standoff and 10.3V clamping voltage. These parts are suitable for applications requiring higher transient suppression capability. SMLJ6.0CA-TP supports extended temperature range to 175°C.
All substitute parts are ROHS3 compliant and MSL 1 rated, ensuring compatibility with standard manufacturing and storage conditions.
Frequently Asked Questions (FAQ)
Q: Can SMCJ6.0C be directly replaced with SMCJ6.0CA?
A: Yes. SMCJ6.0CA maintains identical reverse standoff voltage (6V), equivalent clamping voltage (10.3V vs. 10.82V), and matching peak pulse current (145.7A) and power rating (1500W). Both use DO-214AB SMC packaging. Operating temperature range differs slightly (-50°C to 150°C for SMCJ6.0CA vs. -55°C to 150°C for SMCJ6.0C), which is acceptable for most general-purpose applications.
Q: What is the difference between SMCJ and SMLJ series substitutes?
A: SMCJ series parts are rated for 1500W peak pulse power with 145.6–145.7A peak pulse current. SMLJ series parts are rated for 3000W peak pulse power with 291.3A peak pulse current. Both maintain 6V reverse standoff and 10.3V clamping voltage. SMLJ parts provide enhanced transient suppression for applications with higher energy transients.
Q: Are packaging differences between Tape & Reel and Bulk significant?
A: Packaging format (Tape & Reel or Bulk) affects handling and assembly processes but does not alter electrical performance. Selection depends on manufacturing requirements and component placement equipment compatibility.
Q: Does SMCJ6.0CE3/TR13 with 11.4V clamping voltage affect circuit protection?
A: SMCJ6.0CE3/TR13 exhibits higher clamping voltage (11.4V vs. 10.3V) while maintaining the same 6V reverse standoff voltage. This variant is suitable only for applications where the protected circuit can tolerate the higher clamping voltage. Verify circuit design specifications before substitution.
Q: Which substitute offers the widest operating temperature range?
A: SMCJ6.0CA-TP and SMLJ6.0CA-TP, both from Micro Commercial Co, support -55°C to 175°C operating temperature range. SMCJ6.0CAE3/TR13 from Microchip Technology supports -65°C to 150°C, providing the lowest minimum temperature rating.
Q: Are all substitutes ROHS3 compliant?
A: All listed substitute parts are ROHS3 compliant and MSL 1 rated, ensuring compatibility with standard manufacturing processes and environmental regulations.
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