Request Quote
(Ships tomorrow)
SMDJ60 Transient Voltage Suppressor Diode - Equivalent & Substitute Parts
Part Overview
The SMDJ60 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. Specified with a 60V reverse standoff voltage, 101.64V maximum clamping voltage, and 31A peak pulse current capability in a DO-214AB (SMC) package, this component is classified as obsolete. Due to its obsolete status, equivalent substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term supply chain reliability.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Reverse Standoff Voltage (Typ) | 60 | V |
| Breakdown Voltage (Min) | 63.18 | V |
| Clamping Voltage (Max) @ Ipp | 101.64 | V |
| Peak Pulse Current (10/1000µs) | 31 | A |
| Peak Pulse Power | 3000 | W |
| Operating Temperature Range | -65 to 150 | °C |
| Package Type | DO-214AB (SMC) | — |
| Mounting Type | Surface Mount | — |
| Diode Type | Zener | — |
| Channels | 1 (Unidirectional) | — |
Substitute Part Grouping Explanation
Substitution of the SMDJ60 is determined by strict electrical and mechanical compatibility criteria:
Primary Substitution Criteria:
- Reverse standoff voltage: 60V (exact match required)
- Package type: DO-214AB / SMC (mechanical compatibility)
- Mounting type: Surface Mount (PCB assembly compatibility)
- Diode configuration: Unidirectional (functional equivalence)
Secondary Electrical Parameters:
- Breakdown voltage range: 63.18V to 66.7V (acceptable tolerance band)
- Clamping voltage: 96.8V to 101.64V (performance envelope)
- Peak pulse current: 15.5A to 31A (application-dependent selection)
- Peak pulse power: 1500W to 3000W (thermal capability)
Substitute parts are grouped into two categories based on peak pulse current rating: full-rated (31A / 3000W) and reduced-rated (15.5A / 1500W) alternatives. Selection depends on circuit protection requirements and thermal design constraints.
Parameter Comparison
| Part Number | Manufacturer | Standoff Voltage (V) | Breakdown Voltage (V) | Clamping Voltage (V) | Peak Pulse Current (A) | Peak Pulse Power (W) | Operating Temp (°C) | Status |
|---|---|---|---|---|---|---|---|---|
| SMDJ60 | Littelfuse Inc. | 60 | 63.18 | 101.64 | 31 | 3000 | -65 to 150 | Obsolete |
| SMDJ60A | Alpha & Omega Semiconductor | 60 | 66.7 | 96.8 | 31 | 3000 | -55 to 150 | Active |
| SMCJ60A | Fairchild Semiconductor | 60 | 66.7 | 96.8 | 15.5 | 1500 | -55 to 150 | Active |
| SMCJ60A-E3/9AT | Vishay General Semiconductor | 60 | 66.7 | 96.8 | 15.5 | 1500 | -55 to 150 | Active |
| SMCJ60A-TP | Micro Commercial Co | 60 | 66.7 | 96.8 | 15.5 | 1500 | -55 to 175 | Active |
| SMCJ60AE3/TR13 | Microchip Technology | 60 | 66.7 | 96.8 | 15.5 | 1500 | -65 to 150 | Active |
| SMLJ60A | Bourns Inc. | 60 | 66.7 | 96.8 | 31 | 3000 | -55 to 150 | Active |
| SMLJ60A-TP | Micro Commercial Co | 60 | 66.7 | 96.8 | 31 | 3000 | -55 to 175 | Active |
| SMLJ60AE3/TR13 | Microchip Technology | 60 | 66.7 | 96.8 | 31 | 3000 | -55 to 150 | Active |
| TV30C600J-G | Comchip Technology | 60 | 66.7 | 96.8 | 30.99 | 3000 | -55 to 150 | Active |
Engineering Selection Recommendations
Full-Rated Substitutes (31A / 3000W):
SMDJ60A (Alpha & Omega Semiconductor) provides direct electrical equivalence with identical peak pulse current and power ratings. This part maintains the original performance envelope and is recommended as the primary substitute for applications requiring full 31A protection capability.
SMLJ60A (Bourns Inc.) and SMLJ60A-TP (Micro Commercial Co) offer equivalent 31A / 3000W ratings with active product status and ROHS3 compliance. SMLJ60A-TP extends the operating temperature range to 175°C, providing enhanced thermal margin for high-temperature environments.
SMLJ60AE3/TR13 (Microchip Technology) delivers 31A / 3000W performance with extended lower temperature rating (-55°C to 150°C) and ROHS3 compliance, suitable for wide temperature range applications.
TV30C600J-G (Comchip Technology) provides 30.99A peak pulse current with 3000W power rating, delivering near-equivalent performance with active status and ROHS3 compliance.
Reduced-Rated Substitutes (15.5A / 1500W):
SMCJ60A (Fairchild Semiconductor), SMCJ60A-E3/9AT (Vishay General Semiconductor), SMCJ60A-TP (Micro Commercial Co), and SMCJ60AE3/TR13 (Microchip Technology) all provide 15.5A / 1500W ratings. These parts are suitable only for applications where circuit protection requirements do not exceed 15.5A peak pulse current. SMCJ60A-TP and SMCJ60AE3/TR13 offer extended temperature ranges (-55°C to 175°C and -65°C to 150°C respectively), providing flexibility for temperature-constrained designs.
All substitute parts maintain ROHS3 compliance and are classified as active products, ensuring long-term availability and supply chain continuity.
Frequently Asked Questions (FAQ)
Q: Can I use a 15.5A rated substitute (SMCJ60A series) in place of the original SMDJ60?
A: Only if your circuit protection requirements do not exceed 15.5A peak pulse current. The SMDJ60 is rated for 31A, so reduced-rated substitutes are suitable only for lower-current applications. Verify your circuit's maximum transient current before selecting a reduced-rated part.
Q: What is the difference between SMLJ60A and SMCJ60A?
A: Both maintain the same 60V standoff voltage and DO-214AB package, but differ in peak pulse current rating. SMLJ60A is rated for 31A / 3000W (equivalent to SMDJ60), while SMCJ60A is rated for 15.5A / 1500W. Select based on your circuit's transient current requirements.
Q: Are all substitute parts RoHS3 compliant?
A: Yes, all listed substitute parts are RoHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing.
Q: Does the clamping voltage difference between SMDJ60 (101.64V) and substitutes (96.8V) affect circuit protection?
A: The lower clamping voltage in substitute parts (96.8V vs. 101.64V) provides slightly more aggressive overvoltage suppression. This is within acceptable tolerance for general-purpose TVS applications and does not compromise circuit protection.
Q: Which substitute offers the widest operating temperature range?
A: SMCJ60A-TP and SMLJ60A-TP both extend to 175°C maximum junction temperature, compared to the original SMDJ60 specification of 150°C. These parts are recommended for high-temperature environments.
Q: Can I mix different substitute part numbers in the same design?
A: All listed substitutes are mechanically and electrically compatible within their respective current ratings. However, for design consistency and supply chain management, select a single substitute part number for production use.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts