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SMCJ36CA-M3/9AT Equivalent & Substitute Parts
Part Overview
The SMCJ36CA-M3/9AT is a bidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 36V reverse standoff category with a 58.1V maximum clamping voltage and 25.8A peak pulse current rating. The device is designed for general-purpose transient protection applications and maintains active product status with full RoHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility within the DO-214AB (SMC) package family.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 36 | V |
| Voltage - Breakdown (Min) | 40 | V |
| Voltage - Clamping (Max) @ Ipp | 58.1 | V |
| Current - Peak Pulse (10/1000µs) | 25.8 | A |
| Power - Peak Pulse | 1500 | W |
| Operating Temperature Range | -55 to 150 | °C |
| Package / Case | DO-214AB, SMC | — |
| Mounting Type | Surface Mount | — |
| Type | Zener | — |
| Bidirectional Channels | 1 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the SMCJ36CA-M3/9AT are classified into three categories based on electrical and mechanical compatibility:
Direct Equivalents (Identical Electrical Specifications) Parts matching all critical electrical parameters: 36V reverse standoff, 40V minimum breakdown, 58.1V maximum clamping voltage, and 25.8A peak pulse current. These parts differ only in packaging format (Cut Tape vs. Tape & Reel) or manufacturer source. Direct equivalents include SMCJ36CA-E3/57T, 1SMC36CA TR13 PBFREE, SMCJ36CA-13-F, and SMCJ36CAE3/TR13.
Upgrade Options (Enhanced Power Handling) Parts with identical voltage specifications but increased current and power ratings. The 5.0SMDJ series (5.0SMDJ36CA and 5.0SMDJ36CA-T7) provide 86.1A peak pulse current and 5000W peak pulse power, suitable for applications requiring higher transient energy absorption. The SMLJ36CA offers 51.6A peak pulse current and 3000W peak pulse power as an intermediate upgrade.
Functional Equivalents (Packaging Variants) Parts manufactured by alternative suppliers (EVVO Semi, Diodes Incorporated, Microchip Technology, Central Semiconductor Corp, Micro Commercial Co, Bourns Inc., Littelfuse Inc., HY Electronic) maintaining the same electrical performance within the DO-214AB SMC package family.
Substitution is valid when the replacement part maintains or exceeds the voltage specifications (36V standoff minimum, 40V breakdown minimum, 58.1V clamping maximum) and current rating (minimum 25.8A peak pulse) of the original component.
Parameter Comparison
| Part Number | Manufacturer | Voltage Standoff (V) | Breakdown Min (V) | Clamping Max (V) | Peak Pulse Current (A) | Peak Pulse Power (W) | Temp Range (°C) | Packaging | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| SMCJ36CA-M3/9AT | Vishay | 36 | 40 | 58.1 | 25.8 | 1500 | -55 to 150 | Tape & Reel | ROHS3 |
| SMCJ36CA-E3/57T | Vishay | 36 | 40 | 58.1 | 25.8 | 1500 | -55 to 150 | Cut Tape | ROHS3 |
| 1SMC36CA TR13 PBFREE | Central Semiconductor | 36 | 40 | 58.1 | 25.8 | 1500 | -65 to 150 | Tape & Reel | ROHS3 |
| SMCJ36CA-13-F | Diodes Incorporated | 36 | 40 | 58.1 | 25.8 | 1500 | -55 to 150 | Cut Tape & Digi-Reel | ROHS3 |
| SMCJ36CAE3/TR13 | Microchip Technology | 36 | 40 | 58.1 | 25.8 | 1500 | -65 to 150 | Cut Tape | ROHS3 |
| SMCJ36CA | EVVO Semi | 36 | 40 | 58.1 | 25.9 | 1500 | -55 to 150 | Cut Tape & Digi-Reel | ROHS3 |
| SMCJ36CA-TP | Micro Commercial Co | 36 | 40 | 58.1 | 25.9 | 1500 | -55 to 175 | Tape & Reel | ROHS3 |
| 5.0SMDJ36CA | HY Electronic | 36 | 40 | 58.1 | 86.1 | 5000 | -65 to 150 | Surface Mount | ROHS3 |
| 5.0SMDJ36CA-T7 | Littelfuse Inc. | 36 | 40 | 58.1 | 86.1 | 5000 | -65 to 150 | Tape & Reel | ROHS3 |
| SMLJ36CA | Bourns Inc. | 36 | 40 | 58.1 | 51.6 | 3000 | -55 to 150 | Tape & Reel | ROHS3 |
Engineering Selection Recommendations
Direct Replacement (No Design Changes Required) SMCJ36CA-E3/57T, SMCJ36CA-13-F, SMCJ36CAE3/TR13, and 1SMC36CA TR13 PBFREE are direct electrical equivalents suitable for one-to-one substitution. All maintain ROHS3 compliance and MSL 1 rating. Selection between these options depends on packaging availability (Cut Tape vs. Tape & Reel) and supplier inventory. SMCJ36CA-TP from Micro Commercial Co offers extended operating temperature range to 175°C while maintaining identical electrical specifications.
Upgrade Path (Enhanced Protection) When circuit design permits higher transient energy absorption, 5.0SMDJ36CA-T7 (Littelfuse) and 5.0SMDJ36CA (HY Electronic) provide 3.3× higher peak pulse current (86.1A) and 3.3× higher peak pulse power (5000W). SMLJ36CA (Bourns) offers intermediate upgrade with 2× current (51.6A) and 2× power (3000W). These upgrades maintain voltage specifications and RoHS3 compliance but require verification of PCB layout and thermal management capability.
Supplier Alternatives EVVO Semi SMCJ36CA and Diodes Incorporated SMCJ36CA-13-F provide equivalent performance with different packaging options and extended inventory availability. All listed substitutes maintain active product status and full regulatory compliance.
Frequently Asked Questions (FAQ)
Q: Can SMCJ36CA-E3/57T replace SMCJ36CA-M3/9AT directly? A: Yes. Both parts share identical electrical specifications (36V standoff, 58.1V clamping, 25.8A peak pulse current, 1500W peak power). The difference is packaging format: SMCJ36CA-E3/57T uses Cut Tape while SMCJ36CA-M3/9AT uses Tape & Reel. Electrical performance and PCB footprint are identical.
Q: What is the difference between direct equivalents and upgrade options? A: Direct equivalents (SMCJ36CA-E3/57T, SMCJ36CA-13-F, SMCJ36CAE3/TR13) match all electrical parameters of the original part. Upgrade options (5.0SMDJ36CA-T7, SMLJ36CA) maintain voltage specifications but provide higher current and power ratings for enhanced transient protection. Upgrades require circuit validation to confirm compatibility.
Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts carry ROHS3 Compliant status. MSL rating is 1 (Unlimited) for all parts, indicating no moisture sensitivity restrictions during storage or handling.
Q: Can I use 5.0SMDJ36CA-T7 in place of SMCJ36CA-M3/9AT? A: Electrically yes, but design verification is required. The 5.0SMDJ36CA-T7 maintains identical voltage specifications and is pin-compatible in the DO-214AB SMC package. However, the higher peak pulse current (86.1A vs. 25.8A) and power rating (5000W vs. 1500W) may require PCB layout adjustments and thermal analysis to ensure proper heat dissipation.
Q: What is the operating temperature difference between SMCJ36CA-TP and other direct equivalents? A: SMCJ36CA-TP from Micro Commercial Co operates from -55°C to 175°C, compared to -55°C to 150°C for SMCJ36CA-M3/9AT. This 25°C extended upper temperature range may be beneficial in high-temperature applications, but electrical performance remains identical.
Q: Are there inventory considerations when selecting a substitute? A: Yes. Inventory levels vary significantly: EVVO Semi SMCJ36CA has 32,100 pieces available, while 5.0SMDJ36CA-T7 (Littelfuse) has 1,396 pieces. For high-volume production, verify substitute part availability with your supplier before design commitment.
Q: Can I mix different manufacturers' parts in the same production run? A: All listed substitutes are functionally equivalent and meet identical electrical and compliance specifications. However, manufacturing process variations may introduce minor performance differences. For critical applications, conduct qualification testing or maintain single-source commitment per design phase.
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