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Vishay General Semiconductor - Diodes Division 1.5SMC36A-M3/57T
- Part No.:
- 1.5SMC36A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC36A-M3/57T.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:4,922
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Product details
Overview
1.5SMC36A-M3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 36 V breakdown voltage (VBR = 34.2–37.8 V at 1 mA), 30.8 V stand-off voltage (VWM), clamps to ≤49.9 V at 30.1 A peak pulse current, and delivers 1500 W peak pulse power with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces against lightning-induced transients and inductive switching surges.
For engineers reviewing the 1.5SMC36A-M3/57T datasheet, 1.5SMC36A-M3/57T pinout, 1.5SMC36A-M3/57T application, or 1.5SMC36A-M3/57T equivalent, this device offers halogen-free, RoHS-compliant construction in SMC (DO-214AB) package with AEC-Q101 qualification option, low incremental surge resistance, and fast response time critical for automotive and industrial power rail protection.
Technical Context
The 1.5SMC36A-M3/57T operates as a unidirectional clamping TVS diode, leveraging a glass-passivated silicon junction to achieve stable avalanche breakdown behavior under transient overvoltage events. Its design targets single-pulse energy absorption per IEC 61000-4-5 and ISO 7637-2 standards, with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W enabling reliable operation up to TJ = 150 °C.
It exhibits <1 ns response time, low clamping ratio (VC/VBR ≈ 1.32), and reverse leakage <1 µA at VWM, ensuring minimal system loading during normal operation while maintaining tight voltage control during surge events on DC power rails and low-speed data lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 34.2 V / 37.8 V at 1 mA - defines precise avalanche initiation window for repeatable clamping threshold |
| VWM | 30.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | ≤49.9 V at 30.1 A - clamped voltage during 1500 W 10/1000 µs surge, limiting stress on downstream components |
| PPPM | 1500 W - peak pulse power handling capability with 0.01% duty cycle, suitable for infrequent high-energy transients |
| IFSM | 200 A - 8.3 ms half-sine surge current rating, supporting inrush and fault-current immunity in power supplies |
| TJ max. | +150 °C - maximum junction temperature enabling use in under-hood automotive and industrial environments |
| Package | SMC (DO-214AB) - standardized surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal management |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 (260 °C reflow peak), polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to protected circuit ground or low-side reference | Provides low-impedance path to ground during reverse-transient clamping; must be routed with minimal inductance |
| Cathode | Current exit terminal in forward bias; connected to protected line (e.g., +12 V rail) | Marked with band; reverse-biased during normal operation; avalanche conduction initiates here during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 µs) | Enables protection against severe lightning-induced surges (IEC 61000-4-5 Level 4) without derating in standard PCB layouts |
| Low clamping voltage (VC ≤ 49.9 V) | Keeps protected ICs and MOSFETs within safe absolute maximum ratings during 30.1 A transient events |
| Glass passivated junction | Ensures long-term stability of VBR and leakage performance across temperature and lifetime cycling |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for automotive and industrial end equipment without compromising surge robustness |
| MSL Level 1 moisture sensitivity | Allows direct placement without baking, reducing manufacturing cost and handling risk in high-volume SMT lines |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs and body control modules from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp transients before they reach LDOs and microcontrollers. Use Value: Withstands 200 A 8.3 ms surge and clamps to ≤49.9 V, preventing latch-up or gate oxide damage in downstream semiconductors. |
Use Scenario: Safeguarding analog outputs and digital I/O lines of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt ESD (IEC 61000-4-2) and fast transient bursts (IEC 61000-4-4). Use Value: Sub-1 ns response and <1 µA leakage at 30.8 V ensure signal integrity during normal operation and immediate clamping during ±8 kV contact ESD events. |
| DC Power Supply Input Stage | Telecom Line Card Surge Protection |
Use Scenario: Front-end protection for AC/DC adapters and PoE-powered devices exposed to AC line transients and hot-swap surges. IC Role / Device Role / Timing Role: Primary clamping device on +5 V/+12 V/+24 V input rails, coordinated with upstream fuses and common-mode chokes. Use Value: 1500 W rating and 30.1 A IPPM allow it to absorb multiple Class III surge events without degradation per UL 497B. |
Use Scenario: Overvoltage protection on RJ45 Ethernet ports and RS-485 communication lines in base station remote units. IC Role / Device Role / Timing Role: Unidirectional TVS on each differential pair supply rail (VCC/VDD) referenced to chassis ground. Use Value: Tight VBR tolerance (±5%) and low VC/VBR ratio preserve signal margin while meeting GR-1089-CORE telecom surge requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A-T3G | Lower peak power (600 W), smaller SMB package (DO-214AA), higher VC (58.1 V @ 10.3 A) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a load dump | Select when board space is constrained and surge threat level is limited to IEC 61000-4-4/5 Level 2 |
| 1.5KE36A | Through-hole TO-204AE (DO-201AD) package, identical VBR/VC specs, same 1500 W rating | Requires wave soldering or hand assembly; not compatible with automated SMT lines | Choose only for legacy through-hole designs or prototyping where rework flexibility outweighs production efficiency |
Compared with SMBJ36A-T3G and 1.5KE36A, the 1.5SMC36A-M3/57T uniquely balances high 1500 W surge capacity, SMC's superior thermal dissipation over SMB, and halogen-free RoHS compliance - making it optimal for new automotive and industrial SMT designs requiring AEC-Q101 readiness and long-term supply stability.
Availability
1.5SMC36A-M3/57T is available at Aetrix Electronics and suitable for automotive ECU power rails, industrial sensor interfaces, DC power supply inputs, and telecom line card surge protection requiring stable component supply across multi-year production cycles.
Supply support for 1.5SMC36A-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, TVS devices, and optoelectronics with emphasis on reliability, ruggedness, and application-specific validation.
The 1.5SMC Series was developed for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where compact size, high surge robustness, and AEC-Q101 qualification are mandatory.
FAQ
What is the breakdown voltage range of the 1.5SMC36A-M3/57T?
The 1.5SMC36A-M3/57T has a guaranteed breakdown voltage (VBR) range of 34.2 V to 37.8 V at a test current of 1 mA, measured per ANSI/IEEE C62.35. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage protection design for 36 V nominal systems.
Is the 1.5SMC36A-M3/57T suitable for automotive applications?
Yes - the 1.5SMC36A-M3/57T is halogen-free and RoHS-compliant (M3 suffix), and an AEC-Q101 qualified version is available under ordering code 1.5SMC36AHM3_A/H. Its 1500 W surge rating, 200 A IFSM, and operation up to +150 °C make it appropriate for under-hood and chassis-mounted automotive electronics per ISO 7637-2 and ISO 16750-2 requirements.
What is the maximum clamping voltage of the 1.5SMC36A-M3/57T during a surge event?
The 1.5SMC36A-M3/57T clamps to a maximum of 49.9 V at its rated peak pulse current of 30.1 A (10/1000 µs waveform). This clamping voltage is measured under standardized test conditions with 8.0 mm × 8.0 mm copper pads, ensuring predictable protection margin for downstream 50 V-rated components.
Does the 1.5SMC36A-M3/57T have polarity marking, and how is it oriented in circuit?
Yes - the 1.5SMC36A-M3/57T is unidirectional and marked with a cathode band on the SMC (DO-214AB) package. During normal operation, the cathode connects to the protected line (e.g., +12 V rail) and the anode to ground; during a positive transient, it conducts in reverse avalanche mode to clamp voltage.
What is the thermal resistance and maximum junction temperature of the 1.5SMC36A-M3/57T?
The 1.5SMC36A-M3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-leads (RθJL) of 15 °C/W when mounted on recommended 8.0 mm × 8.0 mm copper pads. Its maximum operating junction temperature is +150 °C, supporting reliable operation in high-temperature enclosures and engine bay environments.
1.5SMC36A-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 30.1A
- 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)
1.5SMC36A-M3/57T FAQ
1.How can I place an order for 1.5SMC36A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC36A-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 1.5SMC36A-M3/57T reliable?
The price and inventory of 1.5SMC36A-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 1.5SMC36A-M3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC36A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC36A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC36A-M3/57T?
1.5SMC36A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC36A-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 1.5SMC36A-M3/57T?
For technical support, including 1.5SMC36A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC36A-M3/57T requirements.
6.How does Aetrix verify that 1.5SMC36A-M3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC36A-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 1.5SMC36A-M3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC36A-M3/57T?
All 1.5SMC36A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC36A-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 1.5SMC36A-M3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC36A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC36A-M3/57T Tags
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