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Vishay General Semiconductor - Diodes Division SMCG36AHE3/9AT
- Part No.:
- SMCG36AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG36AHE3/9AT.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,511
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Product details
Overview
SMCG36AHE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for high-energy surge protection in automotive and industrial power rails. It features a 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (PPPM), 25.8 A peak pulse current (IPPM), and clamps to 58.1 V at rated surge. It is AEC-Q101 qualified and used to protect MOSFETs and ICs against inductive switching transients.
For engineers reviewing the SMCG36AHE3/9AT datasheet, SMCG36AHE3/9AT pinout, SMCG36AHE3/9AT application, or SMCG36AHE3/9AT equivalent, this page delivers verified electrical parameters, mechanical package data, real-world use cases, and validated alternative parts - all aligned with Vishay's 88457 specification revision dated 09-Jan-2024.
Technical Context
This TVS diode operates as a unidirectional clamping device with a cathode-band polarity marking, optimized for fast response (<1 ns) to 10/1000 µs surge waveforms. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance under repetitive stress.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, supporting operation up to TJ = +150 °C. The device meets J-STD-020 MSL Level 1 and is rated for 200 A IFSM (8.3 ms half-sine), confirming robustness in automotive load-dump scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin below system rail voltage. |
| VBR min/max | 40.0 V / 44.2 V at IT = 1 mA - Confirmed breakdown range ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 58.1 V - Clamping voltage at 25.8 A surge current; defines maximum voltage seen by protected downstream circuitry. |
| PPPM | 1500 W - Peak pulse power handling capability with 10/1000 µs waveform; enables protection against ISO 7637-2 Pulse 5a/b surges. |
| ID @ VWM | 1.0 µA - Reverse leakage at 36 V; negligible power loss and signal integrity impact in standby. |
| TJ max | +150 °C - Maximum junction temperature; supports under-hood automotive placement without derating concerns. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
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 0.31" × 0.31" copper pad recommendation per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to ground or low-side reference in unidirectional configuration. | Provides return path for surge current during clamping; must be routed with low-inductance trace to minimize overshoot. |
| Cathode | Current exit point in forward bias; marked with band; connects to protected line (e.g., 36 V rail). | Defines polarity-sensitive connection - reversal prevents clamping and risks device failure under surge. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control units and body modules requiring long-term reliability under thermal and vibration stress. |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments. |
| MSL Level 1 rating | Enables direct placement on PCB without baking; compatible with standard SMT reflow profiles peaking at 260 °C. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving protection margin for sensitive gate drivers and microcontrollers. |
| 1500 W PPPM with 10/1000 µs waveform | Meets ISO 7637-2 Pulse 5a (load dump) requirements for 12 V systems when mounted per recommended pad layout. |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive I/O Protection |
|---|---|
|
Use Scenario: Protecting 36 V battery-fed ECUs from load dump and alternator transients in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power input and ground, responding within <1 ns to limit voltage excursion. Use Value: Limits peak voltage to 58.1 V during 1500 W surges, preventing damage to 40 V-rated DC-DC converters and CAN transceivers. |
Use Scenario: Safeguarding PLC analog input channels from inductive kickback generated by solenoid valve switching. IC Role / Device Role / Timing Role: Standoff protector on 24–36 V sensor supply lines, conducting only during >40 V transients. Use Value: 1.0 µA leakage at 36 V avoids measurement offset; 58.1 V clamping preserves ADC front-end integrity. |
| On-Board Charger (OBC) DC Link Protection | Telecom Power Supply Surge Suppression |
|
Use Scenario: Shielding bidirectional SiC MOSFET gates and auxiliary supplies in EV on-board chargers exposed to grid-side surges. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated 36 V bias rails, coordinated with primary MOVs and fuses. Use Value: AEC-Q101 qualification ensures compliance with automotive functional safety requirements for OBC subsystems. |
Use Scenario: Guarding 48 V telecom rectifier outputs against lightning-induced surges in outdoor base station cabinets. IC Role / Device Role / Timing Role: Fast-clamping unidirectional suppressor on DC distribution bus, upstream of DC/DC modules. Use Value: 25.8 A IPPM and 1500 W PPPM meet ITU-T K.20/21 immunity standards for central office equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/57T | Same VWM (36 V), lower PPPM (400 W), SMA (DO-214AC) package, RθJA = 100 °C/W. | Lower surge capacity; suitable for non-automotive, space-constrained consumer applications. | Select when cost or board area is prioritized over automotive qualification and 1500 W surge handling. |
| SMCJ36AHE3/9AT | Same VWM (36 V), identical SMCG (DO-215AB) package, but rated for 3000 W PPPM and 50 A IPPM. | Higher surge rating; used where extended immunity to repeated load dumps or lightning surges is required. | Choose when system-level testing demands >1500 W margin or dual-stage protection architecture is deployed. |
Compared with SMCG36AHE3/9AT, SMAJ36A-E3/57T offers smaller footprint but sacrifices AEC-Q101 qualification and surge headroom, while SMCJ36AHE3/9AT provides higher robustness at same package size - enabling drop-in upgrade paths without layout change only if the PCB pad layout matches DO-215AB.
Availability
SMCG36AHE3/9AT is available at Aetrix Electronics and suitable for automotive ECU design, industrial motor control interface protection, and telecom power supply surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SMCG36AHE3/9AT 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, and protection devices with emphasis on reliability, efficiency, and automotive-grade validation.
The SMCG series was developed specifically for high-power, AEC-Q101-compliant transient suppression in 12 V and 24–48 V automotive and industrial power systems, balancing low clamping voltage with rugged surge handling.
FAQ
What is the clamping voltage of the SMCG36AHE3/9AT at its rated peak pulse current?
The SMCG36AHE3/9AT clamps to 58.1 V at its specified peak pulse current of 25.8 A (10/1000 µs waveform). This value is measured under standardized test conditions with 0.31" × 0.31" copper pads per terminal and defines the maximum voltage imposed on protected circuitry during a full-rated surge event. The SMCG36AHE3/9AT maintains this clamping performance across its qualified operating temperature range.
Is the SMCG36AHE3/9AT suitable for automotive applications?
Yes, the SMCG36AHE3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its construction - glass-passivated junction, MSL Level 1 moisture sensitivity, and 150 °C maximum junction temperature - meets critical automotive reliability requirements. The SMCG36AHE3/9AT is commonly deployed in engine control units, body control modules, and ADAS power supplies.
What does the "HE3" suffix indicate in SMCG36AHE3/9AT?
The "HE3" suffix in SMCG36AHE3/9AT denotes RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's ordering nomenclature, HE3 identifies the industrial-grade, AEC-Q101-qualified variant with matte tin-plated leads. The "9AT" indicates packaging in 13-inch diameter tape-and-reel format with 3500 units per reel - a standard logistics configuration for high-volume SMT assembly of the SMCG36AHE3/9AT.
How does the SMCG36AHE3/9AT differ from the bidirectional SMCG36CA variant?
The SMCG36AHE3/9AT is unidirectional, featuring a cathode band and conducting only in reverse breakdown to clamp positive transients on a referenced rail. In contrast, SMCG36CA is bidirectional, symmetrical in both directions, and used where AC-coupled or floating signal lines require protection from bipolar surges. Their VWM (36 V), VBR (40.0–44.2 V), and PPPM (1500 W) match, but polarity and application context differ fundamentally for the SMCG36AHE3/9AT.
What is the thermal resistance of the SMCG36AHE3/9AT, and how does it affect layout?
The SMCG36AHE3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead (RθJL) of 15 °C/W. To achieve these values, Vishay specifies mounting on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. Deviating from this pad layout increases RθJA, raising junction temperature under sustained power dissipation - critical for maintaining the SMCG36AHE3/9AT's 6.5 W derated power limit at TA = 50 °C.
SMCG36AHE3/9AT 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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 25.8A
- 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)
SMCG36AHE3/9AT FAQ
1.How can I place an order for SMCG36AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG36AHE3/9AT 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 SMCG36AHE3/9AT reliable?
The price and inventory of SMCG36AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG36AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG36AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG36AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG36AHE3/9AT?
SMCG36AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG36AHE3/9AT 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 SMCG36AHE3/9AT?
For technical support, including SMCG36AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG36AHE3/9AT requirements.
6.How does Aetrix verify that SMCG36AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG36AHE3/9AT 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 SMCG36AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG36AHE3/9AT?
All SMCG36AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG36AHE3/9AT, 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 SMCG36AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG36AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG36AHE3/9AT Tags
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