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Vishay General Semiconductor - Diodes Division SMCG22A-E3/57T
- Part No.:
- SMCG22A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG22A-E3/57T.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,672
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Product details
Overview
SMCG22A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 22 V stand-off voltage (VWM), 24.4–26.9 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (PPPM), 42.3 A peak pulse current (IPPM), and clamps to 35.5 V at IPPM - ideal for protecting MOSFETs, ICs, and sensor signal lines in automotive and industrial power rails.
For engineers reviewing the SMCG22A-E3/57T datasheet, SMCG22A-E3/57T pinout, SMCG22A-E3/57T application, or SMCG22A-E3/57T equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), DO-215AB mechanical dimensions, and real-world protection use cases - all aligned with Vishay's 88457 specification document dated 09-Jan-2024.
Technical Context
This TVS diode operates as a clamping device in unidirectional configuration, with cathode-band polarity marking and glass-passivated junction for stable surge response. Its low incremental surge resistance and fast response time enable effective suppression of 10/1000 µs transients induced by inductive switching or ESD events.
Rated for -55 °C to +150 °C junction temperature, it meets MSL Level 1 per J-STD-020 and supports reflow soldering up to 260 °C peak. The device is AEC-Q101 qualified and RoHS compliant (E3 suffix), making it suitable for automotive-grade power rail and interface line protection where reliability under thermal and surge stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin. |
| VBR (min/max) | 24.4 V / 26.9 V at IT = 1 mA - guaranteed breakdown threshold range; ensures predictable turn-on during transients. |
| VC @ IPPM | 35.5 V at 42.3 A - clamping voltage under 10/1000 µs surge; determines maximum stress imposed on protected circuitry. |
| PPPM | 1500 W - peak transient power handling capability; enables protection against high-energy lightning or load-dump surges. |
| ID @ VWM | 1.0 µA - ultra-low reverse leakage at rated stand-off; minimizes standby power loss and avoids false triggering. |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance on 8.0 mm × 8.0 mm copper pads; informs PCB thermal design requirements. |
| AEC-Q101 | Qualified - validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
Pinout & Package
Package: SMCG (DO-215AB) - low-profile, surface-mount gull-wing package with matte tin-plated leads, UL 94 V-0 molding compound, and 0.220–0.245 inch (5.59–6.22 mm) body length. Mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal per Vishay's recommended layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected circuit ground or low-side return path. | Enables unidirectional clamping from cathode to anode during positive transients; must be tied to system reference plane. |
| Cathode | Marked end (band); current exit point in forward bias; connected to line being protected. | Defines polarity-sensitive placement - reverse connection disables clamping function; critical for correct surge path routing. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and temperature; eliminates parameter drift due to moisture or contamination ingress. |
| MSL Level 1 rating | Supports standard SMT reflow without baking; compatible with automated assembly at peak 260 °C per J-STD-020. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection fidelity for high-speed interfaces. |
| AEC-Q101 qualification | Validated for automotive underhood and cabin environments including thermal cycling, humidity, and mechanical shock. |
| RoHS-compliant E3 suffix | Meets industrial-grade environmental compliance with matte tin plating and JESD201 Class 2 whisker resistance. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control modules against ISO 7637-2 load dump pulses (up to 120 V, 400 ms). IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery rail and DC-DC input stage. Use Value: Limits transient voltage to ≤35.5 V during 1500 W surges, preventing damage to downstream regulators and microcontrollers. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors exposed to relay coil kickback. IC Role / Device Role / Timing Role: Low-leakage (1.0 µA) TVS mounted directly at connector interface to suppress <100 ns spikes. Use Value: Maintains signal integrity with minimal DC error while clamping sub-microsecond transients before they reach ADC front-end. |
| Consumer Device USB Port Protection | Telecom Base Station DC Feeder Protection |
Use Scenario: Adding secondary overvoltage defense on VBUS line of USB-C ports in portable medical monitors. IC Role / Device Role / Timing Role: Standby-mode TVS with 22 V VWM placed upstream of USB PD controller to absorb hot-swap surges. Use Value: Prevents latch-up in USB interface ICs during plug-in events while maintaining <1 µA quiescent leakage. |
Use Scenario: Protecting -48 V DC feeder lines feeding remote radio units in 5G base stations from lightning-induced surges. IC Role / Device Role / Timing Role: High-power (1500 W) TVS installed at outdoor cabinet entry point, coordinated with upstream GDT. Use Value: Absorbs multi-kA transients without degradation, leveraging 150 °C max junction temperature for sustained outdoor operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A-E3/57T | Same VWM (22 V) and PPPM (400 W), but lower power rating and SMA (DO-214AC) package. | Limited to lower-energy transients; not AEC-Q101 qualified; unsuitable for automotive underhood use. | Select when cost or board space is constrained and surge energy remains below 400 W. |
| SMCJ22A-E3/57T | Same VWM (22 V) and DO-214AB package, but higher PPPM (1500 W) and AEC-Q101 qualified - identical clamping (35.5 V) and thermal specs. | Functionally interchangeable in most layouts; differs only in case outline (SMCJ uses DO-214AB vs. SMCG's DO-215AB). | Choose if existing PCB uses DO-214AB footprint; verify pad layout compatibility before substitution. |
Compared with SMCG22A-E3/57T, SMAJ22A-E3/57T offers reduced surge capacity and no automotive qualification, while SMCJ22A-E3/57T matches key electrical performance but requires mechanical validation for DO-214AB vs. DO-215AB land patterns.
Availability
SMCG22A-E3/57T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feeder surge suppression requiring stable component supply across extended production lifecycles.
Supply support for SMCG22A-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, rectifiers, and protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The SMCG series was engineered specifically for high-energy transient suppression in space-constrained automotive and industrial applications, combining AEC-Q101 compliance with industry-leading 1500 W PPPM in the DO-215AB form factor.
FAQ
What is the clamping voltage of SMCG22A-E3/57T under maximum surge conditions?
The SMCG22A-E3/57T clamps to 35.5 V when subjected to its rated 10/1000 µs peak pulse current of 42.3 A. This value is measured per IEC 61000-4-5 and defines the upper voltage limit imposed on protected circuitry during worst-case transients. The clamping behavior is repeatable and stable across temperature due to the device's glass-passivated junction structure.
Is SMCG22A-E3/57T suitable for automotive applications?
Yes, SMCG22A-E3/57T is AEC-Q101 qualified and explicitly rated for automotive use, including underhood and cabin environments. Its 150 °C maximum junction temperature, MSL Level 1 reflow compatibility, and validation across thermal cycling, humidity, and mechanical shock make it appropriate for engine control units, body control modules, and ADAS sensor interfaces.
How does the E3 suffix affect SMCG22A-E3/57T compliance and assembly?
The E3 suffix indicates RoHS-compliant, industrial-grade construction with matte tin-plated leads that meet J-STD-002 and JESD22-B102 solderability standards. It also satisfies JESD201 Class 2 whisker resistance testing. This ensures compatibility with lead-free reflow processes peaking at 260 °C and supports long-term reliability in high-vibration applications.
What is the thermal resistance of SMCG22A-E3/57T, and how does it impact PCB layout?
SMCG22A-E3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. To maintain safe junction temperatures under repeated surges, PCB designs must allocate sufficient copper area and consider thermal vias - especially in high-temperature ambient environments like automotive underhood locations.
Can SMCG22A-E3/57T be used in bidirectional configurations?
No - SMCG22A-E3/57T is a unidirectional TVS diode, identified by the "A" suffix and cathode band marking. For bidirectional operation, Vishay specifies the SMCG22CA variant (with "CA" suffix), which provides symmetrical clamping in both polarities and no polarity marking. Using SMCG22A-E3/57T in reverse-biased mode will result in forward conduction rather than clamping.
SMCG22A-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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 42.3A
- 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)
SMCG22A-E3/57T FAQ
1.How can I place an order for SMCG22A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG22A-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 SMCG22A-E3/57T reliable?
The price and inventory of SMCG22A-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 SMCG22A-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCG22A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG22A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG22A-E3/57T?
SMCG22A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG22A-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 SMCG22A-E3/57T?
For technical support, including SMCG22A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG22A-E3/57T requirements.
6.How does Aetrix verify that SMCG22A-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG22A-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 SMCG22A-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCG22A-E3/57T?
All SMCG22A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG22A-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 SMCG22A-E3/57T part is unused and in its original packaging.
Return procedure for SMCG22A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG22A-E3/57T Tags
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