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Vishay General Semiconductor - Diodes Division SMCG13AHE3/9AT
- Part No.:
- SMCG13AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG13AHE3/9AT.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,858
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Product details
Overview
SMCG13AHE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) surface-mount package, designed for robust overvoltage protection of sensitive electronics. It features 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) with a 10/1000 µs waveform - deployed in automotive power line and sensor interface protection.
For engineers reviewing the SMCG13AHE3/9AT datasheet, SMCG13AHE3/9AT pinout, SMCG13AHE3/9AT application, or SMCG13AHE3/9AT equivalent, this device is evaluated for AEC-Q101 qualified surge immunity in 12 V/24 V automotive subsystems, ESD-prone signal lines, and industrial I/O interfaces where low clamping voltage and fast response (<1 ns) are critical to IC survivability.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-anode polarity marked by a band on the SMCG package. Its glass-passivated junction delivers stable breakdown behavior under repetitive transients, and its low incremental surge resistance ensures minimal voltage overshoot during high-current surges up to 200 A (IFSM, 8.3 ms half-sine).
Thermally, it exhibits RθJA = 75 °C/W and RθJL = 15 °C/W, enabling reliable operation up to TJ = +150 °C when mounted on 8.0 mm × 8.0 mm copper pads per terminal. The device meets J-STD-020 MSL Level 1 and is qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - maximum continuous reverse operating voltage before clamping begins; defines safe working range for 12 V automotive systems. |
| VBR (min/max) | 14.4 V / 15.9 V at IT = 1 mA - tight breakdown tolerance ensures predictable turn-on across temperature and production lot. |
| VC @ IPPM | 21.5 V at 69.8 A (10/1000 µs) - low clamping voltage protects downstream MOSFETs and microcontrollers from destructive overvoltage. |
| PPPM | 1500 W - enables suppression of high-energy transients such as ISO 7637-2 Pulse 1/2a/5a without failure. |
| ID @ VWM | 1.0 µA - ultra-low leakage preserves battery life in always-on automotive modules. |
| TJ max. | +150 °C - supports under-hood placement in engine control units and body electronics. |
| Package | SMCG (DO-215AB) - low-profile SMD footprint compatible with automated pick-and-place and reflow soldering. |
Pinout & Package
SMCG13AHE3/9AT uses the DO-215AB (SMCG) surface-mount package: dual-leaded, gull-wing configuration with cathode identified by a band. Leads are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to ground or low-impedance return path | Provides reference node for clamping action; must be routed with low-inductance path to minimize voltage spike during surge. |
| Cathode | Current exit point in forward bias; marked with band; connects to protected line | Directly interfaces with the vulnerable signal or power rail (e.g., LIN bus, CAN stub, 12 V supply); determines polarity of protection. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - required for ECUs and ADAS sensors. |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage under thermal stress and humidity exposure, critical for 15-year automotive service life. |
| MSL Level 1 rating | Allows unlimited floor life and reflow at peak 260 °C without preconditioning - simplifies manufacturing and eliminates bake-out steps. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes let-through voltage during surge events, reducing risk of latch-up or gate oxide damage in protected ICs. |
| 1500 W peak pulse power | Supports compliance with ISO 7637-2 and ISO 16750-2 transient immunity requirements for passenger vehicle power networks. |
Applications
| Automotive Power Line Protection | LIN Bus Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails in engine control units against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery input and DC-DC converter input stage. Use Value: Clamps transients up to 1500 W without degradation, maintaining system uptime during ISO 7637-2 Pulse 5a events. |
Use Scenario: Safeguarding LIN transceivers from ESD and coupling noise in door module wiring harnesses. IC Role / Device Role / Timing Role: Low-capacitance (≈30 pF) unidirectional clamp on LIN data line referenced to local ground. Use Value: Sub-22 V clamping prevents transceiver latch-up while preserving signal integrity at 19.2 kbps baud rate. |
| Industrial Sensor Signal Conditioning | Motor Drive Gate Driver Protection |
Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Standoff-rated TVS on 4–20 mA loop outputs, placed adjacent to connector entry point. Use Value: 1.0 µA leakage at 13 V avoids measurement error; 21.5 V VC ensures ADC input stays within safe common-mode range. |
Use Scenario: Protecting high-side gate driver inputs from Miller-induced spikes in BLDC motor inverters. IC Role / Device Role / Timing Role: Fast-response unidirectional clamp between gate driver VDD and GND, near IC pin. Use Value: <1 ns response time limits voltage overshoot during switching transitions, preventing false turn-on of power MOSFETs. |
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), but lower PPPM (400 W); SMA (DO-214AC) package; RθJA = 95 °C/W | Not AEC-Q101 qualified; suitable only for non-automotive industrial use with lower surge energy demands | Select when cost sensitivity outweighs automotive qualification and 1500 W surge margin is unnecessary. |
| 1.5KE13A | Through-hole (DO-201AD); higher VBR tolerance (13.7–15.2 V); same VC (21.5 V); 1500 W rating | Larger footprint and manual assembly required; not suitable for high-density SMT layouts or automated production | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required. |
Compared with SMAJ13A-E3/57T and 1.5KE13A, SMCG13AHE3/9AT uniquely combines AEC-Q101 qualification, 1500 W SMT capability, and DO-215AB's compact gull-wing leadform - making it the only option for volume automotive PCBs requiring zero layout change and full compliance.
Availability
SMCG13AHE3/9AT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and motor drive gate protection requiring stable component supply, AEC-Q101 traceability, and 13" tape-and-reel logistics support.
Supply support for SMCG13AHE3/9AT 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 automotive-grade validation.
The SMCG series was engineered specifically for high-power, space-constrained automotive and industrial transient suppression - delivering AEC-Q101 performance in the smallest possible DO-215AB footprint.
FAQ
What is the clamping voltage of SMCG13AHE3/9AT and how is it measured?
The SMCG13AHE3/9AT has a maximum clamping voltage (VC) of 21.5 V, measured at a peak pulse current (IPPM) of 69.8 A using the standardized 10/1000 µs double-exponential waveform. This value reflects the actual voltage seen by protected circuitry during surge events and is guaranteed across temperature and production lots per Vishay's 88457 specification.
Is SMCG13AHE3/9AT suitable for bidirectional transient protection?
No - SMCG13AHE3/9AT is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay offers the SMCG13CA variant. Using SMCG13AHE3/9AT in bidirectional applications risks forward conduction and failure during negative transients.
Does SMCG13AHE3/9AT require derating at elevated ambient temperatures?
Yes - SMCG13AHE3/9AT must be derated above TA = 25 °C per Figure 2 in the datasheet. At 85 °C ambient, its peak pulse power drops to ~70 % of 1500 W (≈1050 W), and at 125 °C, it falls to ~40 % (≈600 W). Thermal design must account for RθJA = 75 °C/W and mounting pad size.
What does the "HE3/9AT" suffix mean in SMCG13AHE3/9AT?
The "HE3" denotes RoHS-compliant, AEC-Q101-qualified construction (halogen-free base material, matte tin leads), while "9AT" specifies packaging in 13-inch diameter tape-and-reel with 3500 units per reel - optimized for high-volume SMT assembly lines requiring traceability and automotive compliance documentation.
Can SMCG13AHE3/9AT replace SMAJ13A in an existing design?
SMCG13AHE3/9AT is not a drop-in replacement for SMAJ13A due to different packages (DO-215AB vs. DO-214AC), thermal resistance (75 vs. 95 °C/W), and qualification level (AEC-Q101 vs. industrial). Layout, thermal relief, and compliance validation must be re-evaluated before substitution - especially in automotive applications.
SMCG13AHE3/9AT 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG13AHE3/9AT FAQ
1.How can I place an order for SMCG13AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG13AHE3/9AT 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 SMCG13AHE3/9AT reliable?
The price and inventory of SMCG13AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG13AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG13AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG13AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG13AHE3/9AT?
SMCG13AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG13AHE3/9AT 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 SMCG13AHE3/9AT?
For technical support, including SMCG13AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG13AHE3/9AT requirements.
6.How does Aetrix verify that SMCG13AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG13AHE3/9AT 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 SMCG13AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG13AHE3/9AT?
All SMCG13AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG13AHE3/9AT, 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 SMCG13AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG13AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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