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Vishay General Semiconductor - Diodes Division SMCG13A-M3/57T
- Part No.:
- SMCG13A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG13A-M3/57T.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,188
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Product details
Overview
SMCG13A-M3/57T from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor (TVS) in the SMCG (DO-215AB) package, featuring a 13 V stand-off voltage (VWM), 14.4–15.9 V breakdown voltage (VBR) at 1 mA, 21.5 V clamping voltage (VC) at 69.8 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) capability. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in automotive and industrial power electronics.
For engineers reviewing the SMCG13A-M3/57T datasheet, SMCG13A-M3/57T pinout, SMCG13A-M3/57T application, or SMCG13A-M3/57T equivalent, this device is selected for high-reliability overvoltage protection where AEC-Q101 qualification, low incremental surge resistance, and 1500 W 10/1000 µs surge handling are required - especially in DC power rails and bidirectional-capable designs using unidirectional variants with cathode band marking.
Technical Context
This TVS diode operates as a clamping-type protector: under normal bias it presents high impedance (<1 µA leakage at 13 V), then rapidly avalanches below its 14.4–15.9 V breakdown threshold to limit transient voltages to ≤21.5 V at 69.8 A. Its glass-passivated junction ensures stable VBR and low capacitance (typ. <100 pF at 0 V), while the DO-215AB package enables automated placement and meets MSL level 1 reflow standards up to 260 °C.
The device is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance of 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead). Its 200 A IFSM rating supports single half-sine surge events (8.3 ms), and its halogen-free, RoHS-compliant M3 suffix confirms compliance with JESD201 Class 2 whisker testing and UL 94 V-0 molding compound requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 12 V DC systems. |
| VBR min/max | 14.4 V / 15.9 V at 1 mA - tight breakdown tolerance ensures predictable turn-on across production lots and temperature. |
| VC @ IPPM | 21.5 V at 69.8 A - clamping voltage during 10/1000 µs surge; limits downstream voltage stress to compatible with 24 V logic and power ICs. |
| PPPM | 1500 W - peak pulse power handling per 10/1000 µs waveform; supports robust protection against ISO 7637-2 Pulse 1/2a/5a transients. |
| ID @ VWM | 1.0 µA - ultra-low reverse leakage at stand-off voltage; minimizes standby power loss in battery-critical applications. |
| TJ max | +150 °C - extended junction temperature rating enables use in under-hood automotive environments and high-power industrial enclosures. |
| Package | SMCG (DO-215AB) - surface-mount gull-wing package with 0.31" × 0.31" copper pad footprint; optimized for thermal dissipation and automated assembly. |
Pinout & Package
SMCG13A-M3/57T uses the SMCG (DO-215AB) package: a compact, gull-wing surface-mount outline with two terminals, molded in UL 94 V-0 compliant compound. Polarity is marked by a cathode band on the unidirectional variant; no marking on bidirectional versions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-potential node; forms clamping path when cathode is at higher transient voltage. |
| Cathode | High-side protected node | Connected to line being protected (e.g., 12 V rail); band-marked end indicates polarity for correct PCB orientation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, ADAS, and body electronics. |
| Halogen-free & RoHS compliant (M3) | Meets environmental compliance mandates without compromising surge performance; JESD201 Class 2 whisker resistance ensures long-term solder joint integrity. |
| Low incremental surge resistance | Enables tighter clamping (21.5 V VC) at high currents - reduces voltage overshoot during fast transients compared to higher-Rsurge TVS devices. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profiles up to 260 °C peak - eliminates baking requirements and simplifies SMT manufacturing. |
| Glass passivated junction | Provides stable VBR over time and temperature, low leakage, and high surge endurance - critical for field-deployed industrial and automotive systems. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V supply lines in engine control units (ECUs) against load dump and inductive kickback per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and ground, clamping transients within 1 ns response time. Use Value: Limits voltage to ≤21.5 V during 1500 W surges, safeguarding 24 V-rated microcontrollers and CAN transceivers without derating. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (1 µA) clamping device mounted at connector entry point to shunt transients before signal conditioning circuitry. Use Value: Prevents latch-up in op-amps and ADCs by clamping to 21.5 V while adding <100 pF capacitance - preserving bandwidth up to 1 MHz. |
| DC-DC Converter Input Stage | Motor Drive Gate Driver Protection |
Use Scenario: Safeguarding input stage of isolated 12 V → 5 V buck converters in telecom power supplies exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of input filter capacitor; absorbs energy before reaching controller IC. Use Value: Handles 1500 W pulses without degradation, maintaining VWM = 13 V to avoid false triggering during nominal 12 V operation. |
Use Scenario: Protecting high-side gate driver ICs in BLDC motor inverters from Miller-induced voltage spikes during fast switching. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) TVS connected between gate and source, referenced to local ground plane. Use Value: Clamps gate-source voltage to ≤21.5 V, preventing oxide breakdown in 600 V Si MOSFETs while surviving repeated 69.8 A surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A-E3/57T | Same VWM (13 V) and VC (21.5 V), but lower PPPM (400 W) and smaller SMA (DO-214AC) package with higher RθJA (110 °C/W). | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or sustained surge conditions. | Select SMAJ13A-E3/57T only for cost-sensitive consumer applications with <400 W surge exposure and space-constrained layouts. |
| SMCJ13A-M3/57T | Identical VWM (13 V), VBR (14.4–15.9 V), and VC (21.5 V), but rated for 1500 W in larger SMC (DO-214AB) package with improved thermal mass. | Better thermal performance (RθJA = 50 °C/W) supports higher duty-cycle surge events; requires larger PCB footprint. | Choose SMCJ13A-M3/57T when board layout allows extra area and system-level thermal management demands lower junction temperature rise. |
Compared with SMCG13A-M3/57T, SMAJ13A-E3/57T offers reduced surge capacity in a smaller footprint, while SMCJ13A-M3/57T delivers identical electrical protection with superior thermal robustness at the expense of board space - making SMCG13A-M3/57T the optimal balance of high-power clamping, AEC-Q101 compliance, and compact DO-215AB packaging.
Availability
SMCG13A-M3/57T is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, and DC-DC converter input stages requiring stable component supply, AEC-Q101 qualification, and 1500 W transient immunity.
Supply support for SMCG13A-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, efficiency, and application-specific optimization.
The SMCG series was developed for high-power, surface-mount transient suppression in space-constrained automotive and industrial systems - delivering AEC-Q101 qualification, halogen-free compliance, and DO-215AB thermal performance in a single platform.
FAQ
What is the clamping voltage of SMCG13A-M3/57T and how is it measured?
The clamping voltage (VC) of SMCG13A-M3/57T is 21.5 V, measured at a peak pulse current (IPPM) of 69.8 A using the standardized 10/1000 µs double-exponential surge waveform. This value reflects the maximum voltage seen across the device during a transient event and is guaranteed per Vishay's datasheet test conditions - confirming reliable protection for 24 V-rated downstream components when SMCG13A-M3/57T is correctly applied in the circuit.
Is SMCG13A-M3/57T suitable for automotive applications?
Yes, SMCG13A-M3/57T is AEC-Q101 qualified and specifically designed for automotive use, including engine control modules, body electronics, and ADAS power domains. Its -55 °C to +150 °C operating range, halogen-free M3 construction, and compliance with ISO 7637-2 surge immunity requirements make SMCG13A-M3/57T appropriate for under-hood and cabin-mounted systems where reliability under harsh thermal and electrical stress is mandatory.
What does the "M3" suffix mean in SMCG13A-M3/57T?
The "M3" suffix in SMCG13A-M3/57T denotes halogen-free, RoHS-compliant construction meeting JESD201 Class 2 whisker resistance requirements, along with industrial-grade qualification. It distinguishes this variant from E3 (RoHS-compliant but not halogen-free) and HM3 (AEC-Q101 qualified + halogen-free); SMCG13A-M3/57T itself carries AEC-Q101 qualification per the base family documentation, confirmed in the Vishay datasheet revision 09-Jan-2024.
How does SMCG13A-M3/57T differ from bidirectional variants like SMCG13CA?
SMCG13A-M3/57T is unidirectional with a cathode band marking and conducts only in reverse bias above VBR, while SMCG13CA is bidirectional with symmetrical clamping in both directions and no polarity marking. The unidirectional SMCG13A-M3/57T provides lower leakage (<1 µA) and is preferred for DC rail protection, whereas SMCG13CA suits AC-coupled or floating signal lines - both share identical VWM (13 V), VBR (14.4–15.9 V), and VC (21.5 V) ratings.
What is the thermal resistance of SMCG13A-M3/57T and why does it matter?
SMCG13A-M3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead (RθJL) of 15 °C/W, measured on the recommended 0.31" × 0.31" copper pad layout. These values directly impact steady-state power dissipation (6.5 W at TA = 50 °C) and transient thermal response - ensuring the device remains within its 150 °C maximum junction temperature during repeated 1500 W surges, which is essential for long-term reliability in automotive and industrial deployments.
SMCG13A-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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 69.8A
- 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)
SMCG13A-M3/57T FAQ
1.How can I place an order for SMCG13A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG13A-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 SMCG13A-M3/57T reliable?
The price and inventory of SMCG13A-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 SMCG13A-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCG13A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG13A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG13A-M3/57T?
SMCG13A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG13A-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 SMCG13A-M3/57T?
For technical support, including SMCG13A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG13A-M3/57T requirements.
6.How does Aetrix verify that SMCG13A-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG13A-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 SMCG13A-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCG13A-M3/57T?
All SMCG13A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG13A-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 SMCG13A-M3/57T part is unused and in its original packaging.
Return procedure for SMCG13A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG13A-M3/57T Tags
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