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Vishay General Semiconductor - Diodes Division SM15T36CA-M3/57T
- Part No.:
- SM15T36CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T36CA-M3/57T.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,564
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Product details
Overview
SM15T36CA-M3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 36 V standoff voltage (VWM), and clamping voltage of 49.9 V at 30 A peak pulse current. It protects signal lines and power rails in automotive sensor units and industrial I/O interfaces against lightning-induced and switching transients.
For engineers reviewing the SM15T36CA-M3/57T datasheet, SM15T36CA-M3/57T pinout, SM15T36CA-M3/57T application, or SM15T36CA-M3/57T equivalent, key selection criteria include bidirectional clamping capability, 30 A IPPM at 49.9 V, halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification readiness via HM3 variant.
Technical Context
This bidirectional TVS operates symmetrically across both polarities with identical breakdown (VBR = 34.2–37.8 V) and clamping characteristics in either direction. Its low-inductance SMC package and glass-passivated junction enable fast response (<1 ns) to transients while sustaining 200 A non-repetitive forward surge (IFSM) in unidirectional test mode.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, supporting operation from –65 °C to +150 °C. The device meets MSL Level 1 (260 °C peak reflow) and is qualified per JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30.8 V - Maximum continuous reverse operating voltage before leakage exceeds 1 μA; sets upper limit for safe DC bias in protected circuits. |
| VBR (min/max) | 34.2 V / 37.8 V - Breakdown occurs within this band at 1 mA test current; defines threshold for clamping onset in both directions. |
| VC @ IPPM | 49.9 V at 30 A - Clamped voltage during 10/1000 μs transient; determines maximum stress imposed on downstream ICs or MOSFETs. |
| PPPM | 1500 W - Peak pulse power handling with 10/1000 μs waveform; enables protection against lightning surges and inductive switch-off spikes. |
| IPPM | 30 A - Peak pulse current corresponding to VC = 49.9 V; used with source impedance to verify system-level threat compliance. |
| TJ max | +150 °C - Maximum junction temperature; supports under-hood automotive and high-ambient industrial deployments without derating. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant (M3 suffix), matte tin-plated leads solderable per J-STD-002/JESD22-B102. No polarity marking for bidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (unmarked) | Transient current return path in unidirectional mode | Bidirectional symmetry eliminates functional cathode/anode distinction; terminals are electrically interchangeable for surge conduction. |
| Anode (unmarked) | Transient current return path in unidirectional mode | Same physical terminal as cathode in bidirectional configuration; enables symmetrical clamping regardless of voltage polarity. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables robust protection against IEC 61000-4-5 Level 4 (4 kV) surges when system source impedance limits current to ≤30 A. |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes overvoltage stress on protected ICs-e.g., keeps 3.3 V or 5 V logic inputs below absolute maximum ratings during transients. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements prior to placement. |
| AEC-Q101 qualification path (HM3 variant) | Facilitates drop-in qualification for automotive applications including body control modules and ADAS sensor interfaces. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed at connector interface to shunt surge energy before it reaches signal conditioning circuitry. Use Value: Maintains VC ≤ 49.9 V during 30 A transients, ensuring protected transceivers remain within 5.5 V absolute max rating and avoid latch-up or damage. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DIN-rail mounted I/O modules, installed between terminal block and optocoupler input stage. Use Value: Limits transient voltage to 49.9 V at 30 A, preventing optocoupler LED overvoltage failure and enabling reliable 24 V signal detection under harsh factory conditions. |
| Telecom Line Interface | Consumer Power Adapter ESD/Surge |
Use Scenario: Shielding Ethernet PHY magnetics and PoE injectors from induced surges on outdoor cabling in security camera systems. IC Role / Device Role / Timing Role: Secondary-level TVS on secondary-side data/power lines, coordinated with primary-side GDT or MOV for staged protection. Use Value: Fast <1 ns response and low VC ensure Ethernet signal integrity is preserved during 10/1000 μs threats up to 1500 W without packet loss or link drop. |
Use Scenario: Adding surge immunity to USB-C PD and 12 V adapter outputs exposed to accidental AC mains contact or lightning-coupled noise. IC Role / Device Role / Timing Role: Final-stage clamp on DC output rail, placed after DC-DC converter and before connector to absorb residual transients. Use Value: Halogen-free M3 construction meets IEC 62368-1 flammability and environmental requirements while clamping to 49.9 V to protect connected devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA | Lower PPPM = 600 W; same VWM = 30.8 V, VC = 58.1 V at 10.3 A; SMB package (smaller footprint, higher RθJA). | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy threats like ESD or local switching noise. | Select SMBJ36CA only when board space is constrained and surge threat level is ≤600 W. |
| SMCJ36CA | Identical PPPM = 1500 W, VWM = 30.8 V, VC = 49.9 V at 30 A; same SMC package but E3/M3 suffix options differ in halogen content and qualification status. | No functional difference in clamping or thermal behavior; E3 variant lacks halogen-free certification and AEC-Q101 path. | Choose SMCJ36CA-M3 if identical specs are required and Vishay's SM15T series lifecycle or documentation preference drives sourcing. |
Compared with SMBJ36CA and SMCJ36CA, SM15T36CA-M3/57T provides identical surge capability and clamping in a halogen-free, RoHS-compliant package with documented MSL Level 1 reflow compatibility and direct AEC-Q101 qualification pathway-making it optimal for automotive and high-reliability industrial designs requiring full compliance traceability.
Availability
SM15T36CA-M3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter surge immunity requiring stable component supply and full halogen-free compliance.
Supply support for SM15T36CA-M3/57T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, power handling, and automotive-grade qualification.
The SM15T Series was designed specifically for high-energy transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure-where 1500 W surge capability and bidirectional symmetry are mandatory.
FAQ
What is the clamping voltage of SM15T36CA-M3/57T at its rated peak pulse current?
The SM15T36CA-M3/57T has a maximum clamping voltage (VC) of 49.9 V when subjected to its rated peak pulse current (IPPM) of 30 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88380 and defines the upper voltage limit imposed on protected circuitry during surge events.
Is SM15T36CA-M3/57T suitable for automotive applications?
Yes, SM15T36CA-M3/57T is halogen-free and RoHS-compliant, and its base family is AEC-Q101 qualified-available in HM3 variants. While SM15T36CA-M3/57T itself carries the commercial M3 suffix, it shares identical electrical and thermal specifications with AEC-Q101 versions, making it suitable for automotive use pending final qualification validation per customer requirements.
What does the "CA" suffix indicate in SM15T36CA-M3/57T?
The "CA" suffix in SM15T36CA-M3/57T denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional "A" variants, CA devices have no polarity marking and exhibit matched VBR and VC in either direction.
What is the thermal resistance from junction to ambient for SM15T36CA-M3/57T?
The typical thermal resistance from junction to ambient (RθJA) for SM15T36CA-M3/57T is 75 °C/W when mounted on 0.31" x 0.31" (8.0 mm x 8.0 mm) copper pads per terminal, as specified in Vishay document 88380. This value assumes standard SMC footprint layout and guides thermal design for continuous power dissipation up to 6.5 W.
How does the M3 suffix affect the compliance profile of SM15T36CA-M3/57T?
The M3 suffix in SM15T36CA-M3/57T indicates halogen-free, RoHS-compliant construction with matte tin-plated leads meeting JESD201 Class 2 whisker resistance. It also confirms compliance with UL 94 V-0 flammability standards for the molding compound-critical for safety-certified end equipment.
SM15T36CA-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- SM15T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 30A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SM15T36CA-M3/57T FAQ
1.How can I place an order for SM15T36CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T36CA-M3/57T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SM15T36CA-M3/57T reliable?
The price and inventory of SM15T36CA-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T36CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SM15T36CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T36CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T36CA-M3/57T?
SM15T36CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T36CA-M3/57T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SM15T36CA-M3/57T?
For technical support, including SM15T36CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T36CA-M3/57T requirements.
6.How does Aetrix verify that SM15T36CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T36CA-M3/57T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SM15T36CA-M3/57T meets industry standards.
7.What is the process for return or replacement of SM15T36CA-M3/57T?
All SM15T36CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T36CA-M3/57T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SM15T36CA-M3/57T part is unused and in its original packaging.
Return procedure for SM15T36CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T36CA-M3/57T Tags
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