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SMCJ60C Equivalent & Substitute Parts
Part Overview
The SMCJ60C is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 60V reverse standoff voltage with a 101.64V maximum clamping voltage and 15.5A peak pulse current capability in a DO-214AB (SMC) package. The SMCJ60C is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Reverse Standoff (Typ) | 60V |
| Voltage - Breakdown (Min) | 63.18V |
| Voltage - Clamping (Max) @ Ipp | 101.64V |
| Current - Peak Pulse (10/1000µs) | 15.5A |
| Power - Peak Pulse | 1500W |
| Operating Temperature Range | -55°C to 150°C (TJ) |
| Package / Case | DO-214AB, SMC |
| Mounting Type | Surface Mount |
| Type | Zener |
| Bidirectional Channels | 1 |
Substitute Part Grouping Explanation
Substitution of the SMCJ60C is determined by the following critical parameters:
- Voltage - Reverse Standoff: Must be 60V
- Package / Case: Must be DO-214AB (SMC) for mechanical and thermal compatibility
- Mounting Type: Must be Surface Mount
- Type: Must be Zener TVS diode
- Bidirectional Channels: Must be 1
- Current - Peak Pulse (10/1000µs): Minimum 15.5A
- Power - Peak Pulse: Minimum 1500W
- Operating Temperature Range: Must support at least -55°C to 150°C
Substitute parts are grouped into two categories based on clamping voltage performance:
Category A (Clamping Voltage 96.8V): SMCJ60CA, SMCJ60CA-13-F, SMCJ60CA-E3/9AT, SMCJ60CAE3/TR13, SMLJ60CA, SMLJ60CA-TP, 5.0SMLJ60CA-TP
Category B (Clamping Voltage 107V): SMCJ60CE3/TR13
All substitute parts maintain the 60V reverse standoff voltage and DO-214AB package specification. Differences exist in clamping voltage, peak pulse current, and power dissipation capabilities.
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff | Voltage - Breakdown (Min) | Voltage - Clamping (Max) @ Ipp | Current - Peak Pulse (10/1000µs) | Power - Peak Pulse | Operating Temperature | Product Status |
|---|---|---|---|---|---|---|---|---|
| SMCJ60C | Littelfuse Inc. | 60V | 63.18V | 101.64V | 15.5A | 1500W | -55°C to 150°C | Obsolete |
| SMCJ60CA | Fairchild Semiconductor | 60V | 66.7V | 96.8V | 15.5A | 1500W | -55°C to 150°C | Active |
| SMCJ60CA-13-F | Diodes Incorporated | 60V | 66.7V | 96.8V | 15.5A | 1500W | -55°C to 150°C | Active |
| SMCJ60CA-E3/9AT | Vishay General Semiconductor - Diodes Division | 60V | 66.7V | 96.8V | 15.5A | 1500W | -55°C to 150°C | Active |
| SMCJ60CAE3/TR13 | Microchip Technology | 60V | 66.7V | 96.8V | 15.5A | 1500W | -65°C to 150°C | Active |
| SMCJ60CE3/TR13 | Microchip Technology | 60V | 66.7V | 107V | 14A | 1500W | -65°C to 150°C | Active |
| SMLJ60CA | Bourns Inc. | 60V | 66.7V | 96.8V | 31A | 3000W | -55°C to 150°C | Active |
| SMLJ60CA-TP | Micro Commercial Co | 60V | 66.7V | 96.8V | 31A | 3000W | -55°C to 175°C | Active |
| 5.0SMLJ60CA-TP | Micro Commercial Co | 60V | 66.7V | 96.8V | 51.7A | 5000W | -55°C to 175°C | Active |
Engineering Selection Recommendations
Direct Electrical Equivalents (Recommended Primary Substitutes)
SMCJ60CA (Fairchild Semiconductor), SMCJ60CA-13-F (Diodes Incorporated), and SMCJ60CA-E3/9AT (Vishay General Semiconductor - Diodes Division) provide the closest electrical match to the SMCJ60C. These parts maintain identical reverse standoff voltage (60V), peak pulse current (15.5A), and power dissipation (1500W) specifications. All three are active products with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).
Enhanced Performance Alternatives
SMLJ60CA (Bourns Inc.) and SMLJ60CA-TP (Micro Commercial Co) offer increased peak pulse current (31A) and power dissipation (3000W) while maintaining the same 60V reverse standoff voltage and DO-214AB package. These parts are suitable for applications requiring higher transient energy absorption. SMLJ60CA-TP extends the operating temperature range to 175°C.
High-Power Option
5.0SMLJ60CA-TP (Micro Commercial Co) provides the highest peak pulse current (51.7A) and power dissipation (5000W) capability. This part is appropriate for applications with severe transient conditions and operates across -55°C to 175°C.
Extended Temperature Range
SMCJ60CAE3/TR13 (Microchip Technology) and SMCJ60CE3/TR13 (Microchip Technology) support an extended lower operating temperature limit of -65°C, compared to -55°C for most alternatives. SMCJ60CE3/TR13 features a higher clamping voltage of 107V with slightly reduced peak pulse current (14A).
All substitute parts are active products with ROHS3 compliance and REACH unaffected or unaffected status, ensuring regulatory compliance for new designs.
Frequently Asked Questions (FAQ)
Q: Can SMCJ60CA directly replace SMCJ60C in existing designs?
A: Yes. SMCJ60CA maintains the same 60V reverse standoff voltage, 15.5A peak pulse current, 1500W power dissipation, and DO-214AB package as the SMCJ60C. The primary difference is a lower clamping voltage (96.8V vs. 101.64V), which is acceptable for most general-purpose overvoltage protection applications. SMCJ60CA is an active product, whereas SMCJ60C is obsolete.
Q: What is the difference between SMCJ60CA and SMLJ60CA?
A: Both parts share the same 60V reverse standoff voltage and DO-214AB package. SMLJ60CA provides higher peak pulse current (31A vs. 15.5A) and power dissipation (3000W vs. 1500W). Select SMLJ60CA for applications requiring greater transient energy absorption capability.
Q: Why do some substitutes have different clamping voltages?
A: Clamping voltage variation reflects different semiconductor designs and manufacturing processes across manufacturers. The SMCJ60C specifies 101.64V maximum clamping voltage, while most active substitutes (SMCJ60CA series, SMLJ60CA series) specify 96.8V. SMCJ60CE3/TR13 specifies 107V. All maintain the critical 60V reverse standoff voltage specification. Verify clamping voltage compatibility with your circuit design requirements.
Q: Are all substitute parts RoHS compliant?
A: Yes. All listed substitute parts are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components.
Q: What packaging options are available for substitutes?
A: All substitute parts use the DO-214AB (SMC) surface-mount package, ensuring mechanical and thermal compatibility with SMCJ60C footprints. Some parts are supplied in tape and reel (TR) packaging for automated assembly, while others are available in bulk. Verify packaging format with your supplier for procurement requirements.
Q: Can SMCJ60CE3/TR13 replace SMCJ60C?
A: SMCJ60CE3/TR13 maintains the 60V reverse standoff voltage and DO-214AB package but differs in clamping voltage (107V vs. 101.64V) and peak pulse current (14A vs. 15.5A). This part is suitable only if your circuit design tolerates the higher clamping voltage and lower peak pulse current specifications.
Q: Which substitute offers the widest operating temperature range?
A: SMLJ60CA-TP and 5.0SMLJ60CA-TP both support -55°C to 175°C, compared to -55°C to 150°C for most other substitutes. SMCJ60CAE3/TR13 and SMCJ60CE3/TR13 extend the lower temperature limit to -65°C.
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