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SMLJ36CE3/TR13 Equivalent & Substitute Parts
Part Overview
The SMLJ36CE3/TR13 is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This bidirectional Zener diode operates with a 36V reverse standoff voltage and provides peak pulse current handling of 46.6A with a maximum clamping voltage of 64.3V at peak pulse current. The device is packaged in DO-214AB (SMC) surface mount configuration and is supplied on tape and reel. Product status is active with full RoHS3 compliance and unlimited moisture sensitivity level rating.
Equivalent and substitute parts are necessary when the original part number becomes unavailable, when alternative manufacturers offer improved performance characteristics, or when design requirements necessitate enhanced electrical specifications such as higher peak pulse current capacity or lower clamping voltages.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 36 | V |
| Voltage - Breakdown (Min) | 40 | V |
| Voltage - Clamping (Max) @ Ipp | 64.3 | V |
| Current - Peak Pulse (10/1000µs) | 46.6 | A |
| Power - Peak Pulse | 300 | W |
| Operating Temperature Range | -55 to 150 | °C (TJ) |
| Package / Case | DO-214AB, SMC | — |
| Mounting Type | Surface Mount | — |
| Type | Zener | — |
| Bidirectional Channels | 1 | — |
Substitute Part Grouping Explanation
Substitute parts for the SMLJ36CE3/TR13 are qualified based on the following critical parameters that must align with the original specification:
Mandatory Matching Parameters:
- Voltage - Reverse Standoff (Typ): 36V
- Voltage - Breakdown (Min): 40V
- Package / Case: DO-214AB, SMC
- Mounting Type: Surface Mount
- Type: Zener
- Bidirectional Channels: 1
- RoHS3 Compliance: Required
Performance Parameters (Allowable Variation):
- Voltage - Clamping (Max) @ Ipp: 58.1V to 64.3V (lower clamping voltage represents improved performance)
- Current - Peak Pulse (10/1000µs): 25.8A to 86.1A (higher current capacity represents enhanced capability)
- Power - Peak Pulse: 1500W to 5000W (higher power rating represents enhanced capability)
- Operating Temperature Range: -65°C to 175°C (extended range acceptable)
Substitute parts are grouped into two categories: direct equivalents with comparable electrical performance and enhanced-performance alternatives offering superior current handling or power dissipation characteristics.
Parameter Comparison
| Manufacturer 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 |
|---|---|---|---|---|---|---|---|---|
| SMLJ36CE3/TR13 | Microchip Technology | 36 | 40 | 64.3 | 46.6 | 300 | -55 to 150 | DO-214AB, SMC |
| 5.0SMDJ36CA | HY Electronic (Cayman) Limited | 36 | 40 | 58.1 | 86.1 | 5000 | -65 to 150 | DO-214AB, SMC |
| 5.0SMDJ36CA-T7 | Littelfuse Inc. | 36 | 40 | 58.1 | 86.1 | 5000 | -65 to 150 | DO-214AB, SMC |
| SMC3K36CAHM3/57 | Vishay General Semiconductor - Diodes Division | 36 | 40 | 58.1 | 51.6 | 3000 | -55 to 150 | DO-214AB, SMC |
| SMCJ36CA | EVVO Semi | 36 | 40 | 58.1 | 25.9 | 1500 | -55 to 150 | DO-214AB, SMC |
| SMCJ36CA-13-F | Diodes Incorporated | 36 | 40 | 58.1 | 25.8 | 1500 | -55 to 150 | DO-214AB, SMC |
| SMCJ36CA-TP | Micro Commercial Co | 36 | 40 | 58.1 | 25.9 | 1500 | -55 to 175 | DO-214AB, SMC |
| SMDJ36CA | Alpha & Omega Semiconductor Inc. | 36 | 40 | 58.1 | 51.7 | 3000 | -55 to 150 | DO-214AB, SMC |
| SMDJ36CA-T7 | Littelfuse Inc. | 36 | 40 | 58.1 | 51.6 | 3000 | -65 to 150 | DO-214AB, SMC |
Engineering Selection Recommendations
For Direct Equivalent Replacement (Comparable Performance):
SMCJ36CA-TP (Micro Commercial Co) and SMDJ36CA (Alpha & Omega Semiconductor Inc.) provide electrical performance within acceptable tolerance of the original SMLJ36CE3/TR13. Both devices maintain the 36V standoff voltage, 40V minimum breakdown voltage, and DO-214AB SMC package configuration. SMCJ36CA-TP offers extended operating temperature range to 175°C, providing additional thermal margin for high-temperature applications. Both parts carry RoHS3 compliance and active product status.
For Enhanced Performance Applications:
5.0SMDJ36CA (HY Electronic) and 5.0SMDJ36CA-T7 (Littelfuse Inc.) deliver superior peak pulse current handling (86.1A) and peak pulse power dissipation (5000W), representing an 85% increase in current capacity and 1567% increase in power handling compared to the original part. These devices maintain identical voltage specifications and package configuration. Both are RoHS3 compliant with active product status. The Littelfuse variant extends operating temperature to -65°C minimum.
For Automotive-Grade Applications:
SMC3K36CAHM3/57 (Vishay General Semiconductor - Diodes Division) is qualified to AEC-Q101 automotive standard with TransZorb® series designation. This part provides 51.6A peak pulse current and 3000W peak pulse power, representing a 10% increase over the original specification. Operating temperature range matches the original (-55°C to 150°C). RoHS3 compliance and active product status are confirmed.
For Cost-Optimized Applications:
SMCJ36CA (EVVO Semi) and SMCJ36CA-13-F (Diodes Incorporated) provide functional equivalence with lower peak pulse current ratings (25.8A to 25.9A) and reduced power dissipation (1500W). These parts are suitable for applications where the original 46.6A specification exceeds system requirements. Both maintain full RoHS3 compliance and active product status.
Frequently Asked Questions (FAQ)
Q: Can I substitute SMCJ36CA-TP for SMLJ36CE3/TR13 in my design?
A: Yes. SMCJ36CA-TP maintains identical voltage specifications (36V standoff, 40V breakdown), package configuration (DO-214AB SMC), and mounting type (surface mount). The clamping voltage is lower (58.1V vs. 64.3V), which represents improved performance. Operating temperature range extends to 175°C. RoHS3 compliance is confirmed. This part is suitable for direct replacement.
Q: What is the difference between the 1500W and 3000W rated parts?
A: Peak pulse power rating indicates the maximum energy the device can dissipate during a transient event. Parts rated at 3000W (SMDJ36CA, SMDJ36CA-T7, SMC3K36CAHM3/57) handle twice the energy of 1500W-rated parts (SMCJ36CA, SMCJ36CA-13-F, SMCJ36CA-TP). Selection depends on the expected transient energy in your application. Higher power ratings provide additional margin for severe overvoltage events.
Q: Is the 5.0SMDJ36CA-T7 compatible with my existing PCB layout designed for SMLJ36CE3/TR13?
A: Yes. Both devices use identical DO-214AB SMC package configuration and surface mount mounting type. PCB footprints are compatible. The 5.0SMDJ36CA-T7 provides enhanced performance with 86.1A peak pulse current and 5000W power dissipation. Extended operating temperature range (-65°C to 150°C) offers additional thermal capability.
Q: What does RoHS3 compliance mean for my application?
A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. All substitute parts listed carry RoHS3 compliance, ensuring regulatory compliance for consumer and industrial applications in regulated markets.
Q: Can I use SMC3K36CAHM3/57 in automotive applications?
A: Yes. SMC3K36CAHM3/57 carries AEC-Q101 automotive qualification and TransZorb® series designation from Vishay. This part is specifically qualified for automotive-grade reliability and environmental stress testing. Use this part when automotive-grade certification is required by design specifications or customer requirements.
Q: What is the difference between tape and reel (TR) and cut tape (CT) packaging?
A: Tape and reel packaging supplies components on continuous carrier tape wound on reels, suitable for high-volume automated assembly. Cut tape supplies components on cut segments of carrier tape, suitable for lower-volume or manual assembly. SMLJ36CE3/TR13 is supplied on tape and reel. Equivalent parts are available in both packaging formats. Verify packaging compatibility with your assembly process.
Q: Why does SMCJ36CA-TP have a higher maximum operating temperature (175°C) than the original part (150°C)?
A: Operating temperature range reflects the device's thermal design and qualification testing. SMCJ36CA-TP is qualified to 175°C junction temperature, providing additional thermal margin. This extended range does not affect electrical performance at standard operating temperatures and may provide benefits in high-temperature environments.
Q: Are all substitute parts in active product status?
A: Yes. All substitute parts listed carry active product status, indicating current manufacturing and availability. This ensures long-term supply continuity and ongoing manufacturer support for technical documentation and quality assurance.
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