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Vishay General Semiconductor - Diodes Division SMCG36A-M3/57T
- Part No.:
- SMCG36A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG36A-M3/57T.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,767
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Product details
Overview
SMCG36A-M3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, with a 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), and 25.8 A peak pulse current (IPPM) under 10/1000 µs waveform - designed for robust overvoltage protection of automotive and industrial power rails and signal lines.
For engineers reviewing the SMCG36A-M3/57T datasheet, SMCG36A-M3/57T pinout, SMCG36A-M3/57T application, or SMCG36A-M3/57T equivalent, key selection criteria include clamping voltage (VC = 58.1 V at IPPM), AEC-Q101 qualification, halogen-free RoHS compliance (M3 suffix), and DO-215AB thermal performance (RθJA = 75 °C/W).
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior and fast response (<1 ns). Its 1500 W PPPM rating is validated on 8.0 mm × 8.0 mm copper pads per terminal, and it supports surge immunity up to 200 A IFSM (8.3 ms half-sine) in unidirectional configurations.
The SMCG36A-M3/57T is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020 (260 °C reflow peak), and exhibits low incremental surge resistance - enabling effective suppression of transients from inductive switching, load dump, and ESD events in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 40.0 V / 44.2 V at 1.0 mA - guaranteed avalanche onset range defining turn-on threshold |
| VC @ IPPM | 58.1 V at 25.8 A (10/1000 µs) - clamped voltage during worst-case surge, limiting stress on downstream ICs |
| PPPM | 1500 W - peak transient energy absorption capability under standardized surge waveform |
| ID @ VWM | 1.0 µA - ultra-low leakage ensuring minimal standby power loss and signal integrity |
| TJ max. | +150 °C - enables use in under-hood automotive and high-temperature industrial enclosures |
| RθJA | 75 °C/W - thermal resistance indicating required PCB copper area for safe power dissipation |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, low-profile gull-wing leaded case with matte tin-plated terminals, UL 94 V-0 molding compound, and AEC-Q101 qualification. Dimensions: 7.87 mm × 9.64 mm × 2.41 mm (L × W × H); mounting pad layout per Vishay spec requires 8.0 mm × 8.0 mm copper pads per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection in unidirectional configuration | Reverse-biased during normal operation; conducts only during overvoltage to clamp to ground or rail |
| Anode | Ground or return path reference | Provides low-impedance surge current path to common reference plane; must be routed with minimal inductance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics including engine control, body modules, and ADAS sensor interfaces |
| Halogen-free & RoHS compliant (M3) | Meets global environmental regulations without compromising thermal or surge performance |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without preconditioning |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during transients, protecting 3.3 V/5 V/12 V logic and power stages |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 16750-2) and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp transients above 36 V. Use Value: Limits peak rail voltage to ≤58.1 V during 1500 W surges, preventing damage to MCU power supplies and CAN transceivers. | Use Scenario: Shielding analog outputs (e.g., 4–20 mA current loops) in factory automation sensors from ESD and cable discharge. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; SMCG36A-M3/57T serves as unidirectional rail-to-ground clamp on supply side. Use Value: 1.0 µA leakage preserves loop accuracy; 58.1 V clamping prevents op-amp input saturation during ±8 kV contact ESD events. |
| Telecom DC Power Input Protection | Consumer Power Adapter Output Clamping |
Use Scenario: Safeguarding PoE-powered switches and base stations from induced lightning surges on 48 V DC inputs. IC Role / Device Role / Timing Role: Primary TVS on DC input stage, coordinated with upstream fuse and downstream DC/DC converter. Use Value: 1500 W PPPM handles multi-pulse surge tests (IEC 61000-4-5); 75 °C/W RθJA allows thermal design with standard 2 oz copper. | Use Scenario: Preventing overvoltage failure in USB-C PD adapters during output short-circuit recovery or feedback loop faults. IC Role / Device Role / Timing Role: Secondary-side clamp across regulated 20 V output to absorb regulator overshoot and transformer ringing. Use Value: 40.0–44.2 V VBR aligns with 20 V output derating margin; 58.1 V VC ensures downstream USB-PD controller remains within ABS max rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/57T | Same VWM (36 V), lower PPPM (400 W), SMA (DO-214AC) package, non-AEC-Q101 | Limited to consumer/industrial grade; unsuitable for automotive under-hood deployment | Select when cost sensitivity outweighs surge margin and automotive qualification requirements |
| SMCJ36A-M3/57T | Same VWM (36 V), higher PPPM (1500 W), identical DO-215AB package, AEC-Q101 qualified | Functionally identical but lacks M3 halogen-free designation; uses standard RoHS-compliant plating | Choose if halogen-free compliance is not mandated by end-customer environmental policy |
Compared with SMAJ36A-E3/57T and SMCJ36A-M3/57T, the SMCG36A-M3/57T uniquely combines AEC-Q101 qualification, halogen-free construction, and DO-215AB thermal performance - making it optimal for automotive Tier-1 suppliers requiring full regulatory alignment and high-energy surge resilience.
Availability
SMCG36A-M3/57T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SMCG36A-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, MOSFETs, and protection devices with emphasis on reliability, automotive qualification, and high-power handling.
The SMCG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in space-constrained, thermally demanding applications such as automotive electronics and industrial controls.
FAQ
What is the clamping voltage of the SMCG36A-M3/57T under a 10/1000 µs surge?
The SMCG36A-M3/57T has a maximum clamping voltage (VC) of 58.1 V when subjected to its rated peak pulse current of 25.8 A using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards and reflects the actual voltage seen by protected circuitry during worst-case transient events - critical for verifying compatibility with downstream IC absolute maximum ratings.
Is the SMCG36A-M3/57T suitable for automotive applications?
Yes, the SMCG36A-M3/57T is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its -55 °C to +150 °C operating junction temperature range, MSL Level 1 reflow compatibility, and validation against ISO 16750-2 load dump conditions make it appropriate for ECUs, body control modules, and ADAS sensor power rails.
What does the "M3" suffix indicate in SMCG36A-M3/57T?
The "M3" suffix denotes halogen-free, RoHS-compliant construction with matte tin-plated leads meeting JESD 201 Class 2 whisker resistance. It distinguishes the SMCG36A-M3/57T from E3 (standard RoHS) and HM3 (AEC-Q101 + halogen-free) variants - confirming full environmental compliance without sacrificing surge performance or thermal reliability.
How does the SMCG36A-M3/57T differ from the SMAJ36A series?
The SMCG36A-M3/57T offers 1500 W peak pulse power in the larger DO-215AB package versus 400 W for the SMAJ36A in DO-214AC. It also carries AEC-Q101 qualification and M3 halogen-free compliance - whereas SMAJ36A is industrial-grade only. The SMCG36A-M3/57T delivers superior thermal dissipation (RθJA = 75 °C/W vs. ~100 °C/W) and higher surge endurance.
What is the recommended PCB layout for optimal thermal performance of SMCG36A-M3/57T?
Vishay specifies mounting the SMCG36A-M3/57T on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal to achieve rated PPPM and thermal resistance (RθJA = 75 °C/W). Use minimum 2 oz copper, avoid thermal reliefs on pads, and ensure symmetric trace routing to minimize inductance - especially critical for high-di/dt surge current paths to ground.
SMCG36A-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AB, SMC Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 25.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG36A-M3/57T FAQ
1.How can I place an order for SMCG36A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG36A-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 SMCG36A-M3/57T reliable?
The price and inventory of SMCG36A-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 SMCG36A-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCG36A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG36A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG36A-M3/57T?
SMCG36A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG36A-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 SMCG36A-M3/57T?
For technical support, including SMCG36A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG36A-M3/57T requirements.
6.How does Aetrix verify that SMCG36A-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG36A-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 SMCG36A-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCG36A-M3/57T?
All SMCG36A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG36A-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 SMCG36A-M3/57T part is unused and in its original packaging.
Return procedure for SMCG36A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG36A-M3/57T Tags
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