Request Quote
(Ships tomorrow)
SMC3K28CA-M3/57 Equivalent & Substitute Parts
Part Overview
The SMC3K28CA-M3/57 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 protection applications. The part is active in production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical performance parameters: 28V reverse standoff voltage, 31.1V minimum breakdown voltage, 45.4V maximum clamping voltage at peak pulse current, and 3000W peak pulse power rating.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Reverse Standoff Voltage (Typ) | 28V |
| Breakdown Voltage (Min) | 31.1V |
| Clamping Voltage (Max) @ Ipp | 45.4V |
| Peak Pulse Current (10/1000µs) | 66.1A |
| Peak Pulse Power | 3000W |
| Operating Temperature Range | -55°C to 150°C (TJ) |
| Package / Case | DO-214AB, SMC |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitute parts for the SMC3K28CA-M3/57 are grouped based on strict electrical parameter matching. The primary substitution criteria are:
- Reverse standoff voltage: 28V
- Breakdown voltage minimum: 31.1V
- Clamping voltage maximum at Ipp: 45.4V
- Package type: DO-214AB or SMC equivalent
- Surface mount configuration
- Bidirectional, single-channel topology
Parts are classified into two categories:
Direct Equivalents (3000W Peak Pulse Power): Parts matching all electrical parameters including the 66.1A peak pulse current specification and 3000W power rating. These provide one-to-one functional replacement.
Higher-Performance Alternatives (5000W Peak Pulse Power): Parts with identical voltage specifications but enhanced current handling (110A peak pulse) and 5000W power rating. These provide superior transient suppression capability while maintaining voltage compatibility.
Parameter Comparison
| Part Number | Manufacturer | Reverse Standoff (V) | Breakdown Min (V) | Clamp Max (V) | Peak Pulse Current (A) | Peak Power (W) | Temp Range (°C) | Package | Grade |
|---|---|---|---|---|---|---|---|---|---|
| SMC3K28CA-M3/57 | Vishay | 28 | 31.1 | 45.4 | 66.1 | 3000 | -55 to 150 | DO-214AB | General |
| SMC3K28CAHM3/57 | Vishay | 28 | 31.1 | 45.4 | 66.1 | 3000 | -55 to 150 | DO-214AB | Automotive (AEC-Q101) |
| SM30T33CAY | STMicroelectronics | 28 | 31.1 | 45.4 | 66.1 | 3000 | -55 to 175 | DO-214AB | Automotive (AEC-Q101) |
| SMDJ28CA | Alpha & Omega Semiconductor | 28 | 31.1 | 45.4 | 66.1 | 3000 | -55 to 150 | DO-214AB | General |
| 3SMC28CA TR13 PBFREE | Central Semiconductor | 28 | 31.1 | 45.4 | 66 | 3000 | -65 to 150 | DO-214AB | General |
| SMC30J28CA | STMicroelectronics | 28 | 31.1 | 45.4 | 66 | 3000 | -55 to 175 | DO-214AB | General |
| SMCJ28CA | Fairchild Semiconductor | 28 | 31.1 | 45.4 | 33.1 | 1500 | -55 to 150 | DO-214AB | General |
| 5.0SMDJ28CA | MDE Semiconductor | 28 | 31.1 | 45.4 | 110 | 5000 | -55 to 150 | DO-214AB | General |
| 5.0SMDJ28CA-T7 | Littelfuse | 28 | 31.1 | 45.4 | 110 | 5000 | -65 to 150 | DO-214AB | General |
| ATV50C280JB-HF | Comchip Technology | 28 | 31.1 | 45.4 | 110.1 | 5000 | -55 to 150 | DO-214AB | Automotive (AEC-Q101) |
Engineering Selection Recommendations
For Direct Replacement (Identical Electrical Performance):
Use SMC3K28CAHM3/57 (Vishay automotive grade) or SM30T33CAY (STMicroelectronics automotive grade) when AEC-Q101 qualification is required. Both maintain the 66.1A peak pulse current and 3000W power rating with extended temperature range to 175°C (SM30T33CAY). SMDJ28CA (Alpha & Omega Semiconductor) and SMC30J28CA (STMicroelectronics) provide equivalent general-purpose alternatives with full RoHS3 compliance.
For Enhanced Performance (Higher Current Capacity):
Use 5.0SMDJ28CA (MDE Semiconductor), 5.0SMDJ28CA-T7 (Littelfuse), or ATV50C280JB-HF (Comchip Technology) when higher transient suppression capability is needed. These parts maintain identical voltage specifications while providing 110A peak pulse current and 5000W power rating. ATV50C280JB-HF includes automotive AEC-Q101 qualification for regulated applications.
Not Recommended for Direct Substitution:
SMCJ28CA (Fairchild Semiconductor) exhibits reduced peak pulse current (33.1A) and power rating (1500W), making it unsuitable as a direct equivalent despite matching voltage parameters.
Frequently Asked Questions (FAQ)
Q: Can I use a higher-power rated TVS diode (5000W) in place of the 3000W SMC3K28CA-M3/57?
A: Yes. The 5.0SMDJ28CA, 5.0SMDJ28CA-T7, and ATV50C280JB-HF maintain identical voltage specifications (28V standoff, 45.4V clamp) while providing enhanced current handling and power dissipation. This substitution improves transient protection margin without affecting circuit compatibility.
Q: Are automotive-grade alternatives (AEC-Q101) compatible with general-purpose applications?
A: Yes. Automotive-qualified parts (SMC3K28CAHM3/57, SM30T33CAY, ATV50C280JB-HF) meet or exceed general-purpose requirements and provide additional reliability assurance through qualification testing. They are suitable for any application requiring the SMC3K28CA-M3/57.
Q: What is the significance of the DO-214AB package designation?
A: DO-214AB is the industry-standard surface mount package for TVS diodes in this voltage and power class. All listed substitutes use DO-214AB or equivalent SMC package configuration, ensuring mechanical and electrical compatibility with existing PCB layouts and assembly processes.
Q: Does operating temperature range affect substitution suitability?
A: Operating temperature range affects application suitability but not electrical equivalence. The SMC3K28CA-M3/57 operates -55°C to 150°C. SM30T33CAY and SMC30J28CA extend to 175°C, providing margin for high-temperature environments. 3SMC28CA and 5.0SMDJ28CA-T7 extend to -65°C for low-temperature applications.
Q: Why does SMCJ28CA show lower peak pulse current (33.1A) than the main part?
A: SMCJ28CA is a lower-power variant (1500W) within the same voltage family. While it maintains voltage compatibility, the reduced current capacity makes it unsuitable as a direct equivalent for applications requiring the full 66.1A transient suppression capability of the SMC3K28CA-M3/57.
Q: Are all listed substitutes RoHS3 compliant?
A: Yes. All substitute parts listed carry RoHS3 compliance certification, meeting environmental and material restriction requirements equivalent to the main part.
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