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Vishay General Semiconductor - Diodes Division SMCG10A-M3/57T
- Part No.:
- SMCG10A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG10A-M3/57T.pdf
- Description:
- TVS DIODE 10VWM 17VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,093
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Product details
Overview
SMCG10A-M3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 17.0 V clamping voltage (VC) at 88.2 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with a 10/1000 µs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMCG10A-M3/57T datasheet, SMCG10A-M3/57T pinout, SMCG10A-M3/57T application, or SMCG10A-M3/57T equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, halogen-free RoHS compliance, thermal resistance (RθJA = 75 °C/W), and bidirectional variant compatibility - all critical for ESD/surge co-design in high-reliability embedded systems.
Technical Context
The SMCG10A-M3/57T operates as a unidirectional avalanche diode with glass-passivated junction, optimized for fast response (<1 ns) to transients induced by inductive load switching or lightning surges. Its low incremental surge resistance and 1500 W PPPM rating enable effective clamping without thermal runaway under repetitive surge stress.
Designed for surface-mount assembly on 8.0 mm × 8.0 mm copper pads per terminal, it meets J-STD-020 MSL Level 1 (260 °C peak reflow), supports 200 A IFSM (8.3 ms half-sine), and maintains stable operation across –55 °C to +150 °C junction temperature range - making it suitable for under-hood automotive and industrial control environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC rail margin for 12 V systems. |
| VBR (min/max) | 11.1 V / 12.3 V at 1 mA - guaranteed avalanche onset window; ensures predictable turn-on during transient events. |
| VC @ IPPM | 17.0 V at 88.2 A - clamped voltage under 10/1000 µs surge; limits downstream IC stress to sub-18 V levels. |
| PPPM | 1500 W - peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge immunity. |
| ID @ VWM | 5.0 µA - ultra-low reverse leakage at rated stand-off; minimizes standby power loss in battery-powered sensors. |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance on standard PCB pad layout; enables thermal budgeting for 6.5 W PD derating. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
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 cathode band marking for polarity identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected circuit ground or low-side return path. | Provides reference node for unidirectional clamping; must be routed with low-inductance path to minimize voltage overshoot. |
| Cathode | Current exit point in forward bias; marked with band; connected to line/rail being protected. | Acts as the "hot" terminal for transient shunting; placement adjacent to IC power pin reduces loop inductance during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS sensors, and infotainment power supplies. |
| Halogen-free & RoHS compliant (M3 suffix) | Meets global environmental regulations without compromising surge robustness or thermal performance. |
| Glass-passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced degradation in harsh environments. |
| MSL Level 1 rating | Enables single-pass reflow without moisture-related popcorning; eliminates pre-bake requirement in SMT lines. |
| Low RθJL (15 °C/W) | Facilitates efficient heat transfer from junction to PCB leads, supporting sustained surge duty cycles in compact layouts. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and LDO input to clamp spikes above 17 V within nanoseconds. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers during vehicle cranking or alternator field collapse. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: TVS mounted at connector interface to divert ESD (IEC 61000-4-2 ±8 kV contact) and surge energy away from precision ADC front-end. Use Value: Maintains signal integrity and avoids calibration drift by limiting transient-induced offset errors below 0.1% FS. |
| Telecom Interface Surge Suppression | Consumer Device USB Port Protection |
Use Scenario: Safeguarding RS-485 transceiver pins in base station backhaul modules exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Bidirectional-capable variant (e.g., SMCG10CA) used in differential pair protection; SMCG10A-M3/57T serves as unidirectional alternative for single-ended bias rails. Use Value: Enables compliance with ITU-T K.21 Basic Protection Level (4 kV line-earth) without adding series impedance to data path. |
Use Scenario: Adding secondary overvoltage protection on VBUS line of USB-C ports in portable medical monitors and smart home hubs. IC Role / Device Role / Timing Role: Standoff voltage (10 V) aligns with USB 2.0/3.0 VBUS tolerance; clamps >15 V transients before they reach USB controller or PMIC. Use Value: Eliminates need for external crowbar circuits while maintaining <1 µA leakage to preserve battery runtime in always-on devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Same VWM (10 V) and VC (17.0 V), but lower PPPM (400 W); SMA (DO-214AC) package with higher RθJA (110 °C/W). | Limited to lower-energy transients (e.g., ESD-only); unsuitable for ISO 7637-2 load dump or IEC 61000-4-5 surges. | Select SMAJ10A only when space constraints prohibit DO-215AB footprint and surge requirements are ≤400 W. |
| SMCG10CA | Bidirectional version with identical VWM (10 V), VBR (11.1–12.3 V), and VC (17.0 V); same SMCG package and AEC-Q101 qualification. | Required for AC-coupled or floating signal lines (e.g., Ethernet PHY, audio jacks); not usable where polarity-sensitive DC rail protection is needed. | Choose SMCG10CA when protecting symmetric interfaces; SMCG10A-M3/57T remains optimal for unidirectional DC power rails. |
Compared with SMAJ10A and SMCG10CA, the SMCG10A-M3/57T uniquely combines 1500 W surge capacity, AEC-Q101 qualification, halogen-free compliance, and DO-215AB thermal performance - making it the preferred choice for automotive and industrial DC rail protection where both energy handling and regulatory conformance are mandatory.
Availability
SMCG10A-M3/57T is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom infrastructure projects requiring stable component supply with full traceability and lifecycle management.
Supply support for SMCG10A-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, efficiency, and application-specific optimization.
The SMCG series was engineered for high-energy transient suppression in space-constrained, thermally demanding environments - targeting automotive, industrial, and telecom applications where AEC-Q101 validation and 1500 W surge capability are essential.
FAQ
What is the clamping voltage of SMCG10A-M3/57T and how does it protect downstream ICs?
The SMCG10A-M3/57T has a maximum clamping voltage (VC) of 17.0 V at 88.2 A peak pulse current (10/1000 µs waveform). This ensures that during surge events, the voltage seen by downstream components - such as microcontrollers or CAN transceivers - remains safely below their absolute maximum ratings. The low clamping ratio (VC/VWM ≈ 1.7) reflects strong suppression efficiency, directly limiting transient-induced overstress in 12 V automotive and industrial power domains.
Is SMCG10A-M3/57T qualified for automotive use?
Yes, SMCG10A-M3/57T is AEC-Q101 qualified, having passed rigorous stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC specification. Its halogen-free (M3) construction and DO-215AB package with MSL Level 1 rating further support deployment in under-hood ECUs, body control modules, and ADAS sensor nodes where long-term reliability under thermal and mechanical stress is mandatory.
How does the SMCG10A-M3/57T differ from the SMCG10CA variant?
The SMCG10A-M3/57T is unidirectional, with cathode band marking and intended for DC rail protection (e.g., 12 V battery input), while SMCG10CA is bidirectional - identical in VWM, VBR, and VC but symmetrical for AC or floating signal lines like RS-485 or audio jacks. Both share the same SMCG package, AEC-Q101 qualification, and 1500 W PPPM, but polarity and application scope differ fundamentally.
What is the thermal resistance of SMCG10A-M3/57T and why does it matter in PCB layout?
The SMCG10A-M3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. This value directly impacts power dissipation capability: at 6.5 W rated power, junction temperature rise reaches ~488 °C without derating - hence proper pad sizing and copper area are critical. Layouts using smaller pads will exceed TJ max (150 °C) under repeated surges, risking parametric shift or failure.
Can SMCG10A-M3/57T replace SMAJ10A in an existing design?
SMCG10A-M3/57T is not a drop-in replacement for SMAJ10A due to different packages (DO-215AB vs. DO-214AC), higher power rating (1500 W vs. 400 W), and lower RθJA (75 vs. 110 °C/W). While electrical parameters like VWM and VC match, PCB footprint, thermal management, and surge capability differ significantly. Redesign of mounting pads and thermal relief is required; the upgrade is beneficial only if higher energy suppression is needed and board space allows.
SMCG10A-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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 88.2A
- 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)
SMCG10A-M3/57T FAQ
1.How can I place an order for SMCG10A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG10A-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 SMCG10A-M3/57T reliable?
The price and inventory of SMCG10A-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 SMCG10A-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCG10A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG10A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG10A-M3/57T?
SMCG10A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG10A-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 SMCG10A-M3/57T?
For technical support, including SMCG10A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG10A-M3/57T requirements.
6.How does Aetrix verify that SMCG10A-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG10A-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 SMCG10A-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCG10A-M3/57T?
All SMCG10A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG10A-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 SMCG10A-M3/57T part is unused and in its original packaging.
Return procedure for SMCG10A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG10A-M3/57T Tags
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