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Vishay General Semiconductor - Diodes Division SMCG110A-E3/57T
- Part No.:
- SMCG110A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG110A-E3/57T.pdf
- Description:
- TVS DIODE 110VWM 177VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,661
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Product details
Overview
SMCG110A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for high-energy surge protection. It features a 110 V stand-off voltage (VWM), 122–135 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (10/1000 µs), 8.5 A maximum clamping current (IPPM), and clamps to 177 V at IPPM. It is AEC-Q101 qualified and used to protect automotive power rails and industrial sensor interfaces against inductive switching transients.
For engineers reviewing the SMCG110A-E3/57T datasheet, SMCG110A-E3/57T pinout, SMCG110A-E3/57T application, or SMCG110A-E3/57T equivalent, key selection criteria include unidirectional polarity, DO-215AB thermal performance (RθJA = 75 °C/W), 1500 W surge rating, AEC-Q101 qualification, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping device in parallel with protected circuitry, activating when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), enabling suppression of ESD and lightning-induced surges before downstream ICs are damaged.
The SMCG110A-E3/57T is rated for TJ = −55 °C to +150 °C, supports 200 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), and meets J-STD-020 MSL Level 1 with 260 °C reflow peak. Its low incremental surge resistance and 177 V clamping voltage at 8.5 A ensure predictable overvoltage limiting under standardized transient waveforms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V–48 V automotive and industrial power rails. |
| VBR (min/max) | 122 V / 135 V at 1 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction during normal operation. |
| VC @ IPPM | 177 V at 8.5 A - Clamping voltage under 10/1000 µs surge; determines maximum stress imposed on protected load during transient events. |
| PPPM | 1500 W - Peak pulse power handling capability; enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on DC lines. |
| ID @ VWM | ≤1.0 µA - Reverse leakage current at stand-off voltage; critical for low-power sensor and battery-backed circuits where standby current must be minimized. |
| TJ max. | +150 °C - Maximum junction temperature; supports under-hood automotive deployment and high-ambient industrial environments. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on standard 8.0 mm × 8.0 mm copper pads; informs heatsinking requirements for sustained power dissipation. |
Pinout & Package
Package: SMCG (DO-215AB) - Surface-mount gull-wing package with matte tin-plated leads, UL 94 V-0 molding compound, and polarity indicated by cathode band. Compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to ground or lower-potential node in unidirectional configuration. | Provides low-impedance path to ground during surge events; must be routed with minimal inductance to preserve clamping speed. |
| Cathode | Current exit terminal in forward bias; marked with band; connected to protected line (e.g., 12 V supply rail). | Defines polarity-sensitive placement; incorrect orientation disables protection and may cause catastrophic short-circuit failure. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance-enables use in engine control units and ADAS power domains. |
| Glass-passivated junction | Ensures stable VBR and low leakage across temperature and lifetime; eliminates risk of parametric drift due to moisture or contamination ingress. |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak, eliminating bake requirements and supporting high-yield automated assembly. |
| Low-profile DO-215AB footprint | 0.220–0.245 inch body length with 0.038–0.058 inch lead span enables dense PCB layouts while maintaining >1.27 mm creepage/clearance for 110 V systems. |
| 1500 W 10/1000 µs rating | Supports full IEC 61000-4-5 surge immunity up to 4 kV on 2 Ω source impedance without derating-reduces need for cascaded protection stages. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs and lighting modules from load-dump and jump-start transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional shunt clamping device placed directly at power input connector to limit voltage excursion below 177 V. Use Value: Prevents latch-up or gate oxide damage in downstream PMICs and microcontrollers by clamping within 1 ns and sustaining 1500 W surge energy. |
Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in factory automation PLCs exposed to relay coil flyback. IC Role / Device Role / Timing Role: Standoff-mode protector between sensor signal line and ground, activated only during >122 V transients. Use Value: Maintains <1.0 µA leakage at 110 V nominal, preserving sensor accuracy and enabling direct connection to 16-bit ADC reference rails. |
| Telecom DC Power Feeds | Motor Drive Control Signal Lines |
|
Use Scenario: Securing -48 V telecom rectifier outputs against lightning-induced surges entering central office equipment. IC Role / Device Role / Timing Role: High-power unidirectional TVS mounted upstream of DC-DC converters to absorb multi-kW transients. Use Value: Delivers 177 V clamping at 8.5 A with RθJA = 75 °C/W, enabling operation without heatsink in forced-air-cooled 19-inch rack systems. |
Use Scenario: Shielding isolated gate driver enable signals in servo motor inverters from cross-talk and IGBT switching noise. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF) shunt clamp on 5 V logic lines, referenced to local ground plane. Use Value: Fast response (<1 ns) prevents false triggering of gate drivers while maintaining signal integrity up to 10 MHz edge rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ110A-E3/57T | Same VWM (110 V) and PPPM (400 W), but lower 400 W rating and SMA (DO-214AC) package with higher RθJA (105 °C/W). | Limited to lower-energy transients (IEC 61000-4-5 Level 2); unsuitable for automotive load-dump where 1500 W is required. | Select SMCG110A-E3/57T when 1500 W surge handling and AEC-Q101 qualification are mandatory; choose SMAJ110A-E3/57T only for cost-sensitive, space-constrained consumer designs. |
| SMCJ110A-E3/57T | Identical VWM (110 V), VBR (122–135 V), and PPPM (1500 W), but in larger SMC (DO-214AB) package with RθJA = 40 °C/W and 0.310" body length. | Better thermal performance allows higher duty-cycle operation; requires 30% more PCB area than SMCG's DO-215AB footprint. | Choose SMCG110A-E3/57T for high-density automotive modules where board space is constrained; select SMCJ110A-E3/57T when thermal management dominates layout priorities. |
Compared with SMAJ110A-E3/57T and SMCJ110A-E3/57T, the SMCG110A-E3/57T uniquely balances 1500 W surge capability, AEC-Q101 qualification, and compact DO-215AB packaging-making it optimal for space-limited, high-reliability automotive and industrial power protection where both performance and footprint matter.
Availability
SMCG110A-E3/57T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feed surge suppression requiring stable component supply and long-term lifecycle continuity.
Supply support for SMCG110A-E3/57T 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SMCG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy, surface-mount transient suppression in automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and 1500 W surge capacity are essential.
FAQ
What is the maximum clamping voltage of the SMCG110A-E3/57T under a 10/1000 µs surge?
The SMCG110A-E3/57T clamps to 177 V at its rated peak pulse current of 8.5 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 09-Jan-2024. The clamping voltage defines the upper voltage limit imposed on protected circuitry during surge events, making it critical for ensuring downstream ICs remain within absolute maximum ratings. Designers must verify that 177 V does not exceed the withstand voltage of connected loads.
Is the SMCG110A-E3/57T suitable for automotive applications?
Yes, the SMCG110A-E3/57T 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 temperature cycling, HTRB, and surge endurance meet automotive reliability requirements. The SMCG110A-E3/57T is commonly deployed in engine control units, body control modules, and ADAS power supplies where ISO 7637-2 load-dump immunity is required.
What does the "E3/57T" suffix indicate in SMCG110A-E3/57T?
The "E3" suffix denotes RoHS-compliant, industrial-grade construction with matte tin-plated leads, while "57T" specifies the preferred packaging: 7-inch diameter plastic tape and reel containing 850 units. This format supports automated SMT placement and is compatible with standard pick-and-place equipment. The E3/57T variant is distinct from HE3/57T (AEC-Q101 qualified) and M3/57T (halogen-free), confirming that SMCG110A-E3/57T meets RoHS but is not automotive-qualified unless specified with HE3.
How does the SMCG110A-E3/57T compare to bidirectional TVS diodes like SMCG110CA?
The SMCG110A-E3/57T is unidirectional and intended for DC line protection with defined polarity (cathode band), whereas SMCG110CA is bidirectional and used for AC or floating signal lines. Both share identical VWM (110 V), VBR (122–135 V), and PPPM (1500 W), but the unidirectional SMCG110A-E3/57T exhibits lower leakage (<1.0 µA vs. ≤2.0 µA for CA types) and supports forward surge current (IFSM = 200 A), which bidirectional variants do not. Use SMCG110A-E3/57T for 12 V/24 V power rails; choose SMCG110CA only for differential bus or transformer-coupled interfaces.
What PCB pad layout is recommended for optimal thermal and electrical performance of the SMCG110A-E3/57T?
Vishay specifies a minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad for each terminal to achieve the rated RθJA of 75 °C/W and sustain 1500 W surge power. Thermal vias under pads are recommended to enhance heat transfer to inner layers or ground planes. The SMCG110A-E3/57T must be placed with the cathode band oriented correctly per schematic polarity, and traces to protected nodes should be short and wide to minimize inductance-critical for preserving sub-nanosecond response time during fast transients.
SMCG110A-E3/57T 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):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 177V
- Current - Peak Pulse (10/1000µs):
- 8.5A
- 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)
SMCG110A-E3/57T FAQ
1.How can I place an order for SMCG110A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG110A-E3/57T 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 SMCG110A-E3/57T reliable?
The price and inventory of SMCG110A-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG110A-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCG110A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG110A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG110A-E3/57T?
SMCG110A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG110A-E3/57T 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 SMCG110A-E3/57T?
For technical support, including SMCG110A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG110A-E3/57T requirements.
6.How does Aetrix verify that SMCG110A-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG110A-E3/57T 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 SMCG110A-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCG110A-E3/57T?
All SMCG110A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG110A-E3/57T, 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 SMCG110A-E3/57T part is unused and in its original packaging.
Return procedure for SMCG110A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG110A-E3/57T Tags
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