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Vishay General Semiconductor - Diodes Division SMCG36HE3/57T
- Part No.:
- SMCG36HE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG36HE3/57T.pdf
- Description:
- TVS DIODE 36VWM 64.3VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,471
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Product details
Overview
SMCG36HE3/57T from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) in the DO-215AB (SMCG) package, designed for robust overvoltage protection of sensitive electronics. It features a 36 V stand-off voltage (VWM), 1500 W peak pulse power (PPPM), and clamps transients to ≤58.1 V at 25.8 A (10/1000 µs waveform), with AEC-Q101 qualification for automotive applications.
For engineers reviewing the SMCG36HE3/57T datasheet, SMCG36HE3/57T pinout, SMCG36HE3/57T application, or SMCG36HE3/57T equivalent, key selection criteria include bidirectional clamping capability, low incremental surge resistance, MSL Level 1 moisture sensitivity, and RoHS-compliant matte tin terminations meeting J-STD-002 solderability standards.
Technical Context
This device operates as a bi-directional avalanche diode, leveraging glass-passivated junction technology for stable breakdown behavior under repetitive transient stress. Its symmetrical V-I characteristics ensure identical clamping performance in both polarities, with thermal resistance RθJA = 75 °C/W enabling reliable operation up to TJ = 150 °C.
The SMCG36HE3/57T is rated for 1500 W peak pulse power per 10/1000 µs waveform, with clamping voltage VC = 58.1 V at IPPM = 25.8 A. It exhibits <1 µA reverse leakage at VWM = 36 V and meets UL 94 V-0 flammability requirements for its molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines system-level signal integrity margin. |
| PPPM | 1500 W - Peak transient energy absorption capacity under standardized 10/1000 µs surge; supports high-energy ESD and load-dump immunity. |
| VC @ IPPM | 58.1 V - Clamped voltage at 25.8 A peak surge current; determines maximum stress imposed on protected downstream ICs. |
| ID @ VWM | ≤1.0 µA - Reverse leakage at stand-off voltage; ensures minimal quiescent power loss and signal line loading. |
| TJ max. | +150 °C - Maximum junction temperature; enables deployment in under-hood automotive environments and industrial enclosures. |
| MSL Level | Level 1 (per J-STD-020) - Allows unlimited floor life and reflow at peak 260 °C; simplifies SMT assembly without baking. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: DO-215AB (SMCG) - Surface-mount gull-wing leaded package with 0.220–0.245 inch body length, 0.115–0.125 inch width, and 0.024–0.040 inch lead thickness. Matte tin-plated leads meet J-STD-002 solderability and JESD 22-B102 mechanical robustness requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bi-directional transient conduction path | No polarity marking; terminals are interchangeable - enables placement flexibility and eliminates orientation errors in automated assembly. |
| Leads (both) | Thermal and electrical interface | Provide primary heat dissipation path to PCB copper pads (0.31" × 0.31") and low-inductance surge current return; critical for maintaining clamping performance during fast transients. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., CAN, LIN, sensor bridges) without polarity concerns. |
| Glass-passivated junction | Ensures stable breakdown voltage over lifetime and improved resistance to humidity-induced degradation vs. epoxy-passivated alternatives. |
| Low incremental surge resistance | Minimizes voltage overshoot during sub-microsecond transients - critical for protecting fast-switching MOSFET gates and microcontroller I/O. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules where field failure risk must be minimized. |
| UL 94 V-0 molding compound | Prevents flame propagation in fault conditions - required for compliance in enclosed automotive and industrial control units. |
Applications
| Automotive Power Distribution | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Protection of 12 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping element placed at main power input, upstream of DC/DC converters and LDOs. Use Value: Limits transient voltage to ≤58.1 V, preventing latch-up or gate oxide damage in downstream PMICs and microcontrollers. |
Use Scenario: Shielding analog front-end circuits (e.g., RTD, thermocouple, strain gauge amplifiers) from EFT and ESD in factory automation. IC Role / Device Role / Timing Role: Low-capacitance shunt protector on differential sensor inputs and excitation lines. Use Value: Sub-1 µA leakage preserves measurement accuracy; symmetrical clamping avoids DC offset shift in balanced bridge configurations. |
| Telecom Line Card Protection | Consumer USB/Type-C Port |
|
Use Scenario: Safeguarding Ethernet PHYs and PoE controllers from lightning-induced surges on RJ45 ports. IC Role / Device Role / Timing Role: Secondary-level TVS after gas discharge tube (GDT) primary suppression, handling residual fast-rising transients. Use Value: 1500 W PPPM rating absorbs energy not diverted by upstream GDT; DO-215AB footprint allows dense layout near connector. |
Use Scenario: Overvoltage protection for USB 2.0/3.2 data lines and VBUS in portable devices subject to hot-plug and cable ESD. IC Role / Device Role / Timing Role: Bi-directional shunt clamp on D+/D− and VBUS, co-located with ESD diodes. Use Value: 58.1 V clamping prevents damage to USB transceivers rated for ≤6 V operation when VBUS spikes occur during adapter switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36CA | Same VWM (36 V) and bi-directionality, but lower PPPM (400 W) and higher VC (60.0 V at 6.8 A); DO-214AC (SMA) package. | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); unsuitable for ISO 7637-2 load dump. | Select SMAJ36CA only for cost-sensitive consumer applications with verified low-surge exposure. |
| SMCJ36CA | Same DO-214AB (SMC) package family, 1500 W PPPM, but higher VC (64.5 V at 23.3 A); not AEC-Q101 qualified. | Acceptable for industrial use but lacks automotive qualification evidence; requires additional reliability validation for vehicle programs. | Choose SMCJ36CA if AEC-Q101 is not mandated and board space permits larger SMC footprint. |
Compared with SMAJ36CA and SMCJ36CA, the SMCG36HE3/57T delivers superior automotive-grade assurance via AEC-Q101 qualification, tighter clamping (58.1 V vs. ≥60.0 V), and optimized DO-215AB thermal performance - making it the preferred choice for safety-critical 12 V systems where surge margin and supply-chain continuity are essential.
Availability
SMCG36HE3/57T is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface, telecom line card protection, and consumer USB/Type-C port designs requiring stable component supply across multi-year production cycles.
Supply support for SMCG36HE3/57T 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 is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power, surface-mount transient suppression in automotive, industrial, and communications infrastructure where compact size and AEC-Q101 compliance are mandatory.
FAQ
What does the 'HE3' suffix indicate in SMCG36HE3/57T?
The 'HE3' suffix in SMCG36HE3/57T denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. It distinguishes this automotive-grade variant from commercial 'E3' versions (e.g., SMCG36A-E3/57T), which lack automotive qualification testing and enhanced metallurgical stability.
Is SMCG36HE3/57T unidirectional or bidirectional?
SMCG36HE3/57T is a bi-directional TVS diode, as confirmed by its 'CA' designation in the base family (SMCG36CA) and absence of cathode band marking. Its symmetrical breakdown behavior provides identical clamping in both polarities - essential for protecting AC-coupled or floating signal paths without polarity constraints.
What is the maximum clamping voltage for SMCG36HE3/57T under surge conditions?
The maximum clamping voltage for SMCG36HE3/57T is 58.1 V, measured at IPPM = 25.8 A using the standard 10/1000 µs double-exponential waveform. This value is specified in the Vishay datasheet (Document Number 88457, page 2) and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Does SMCG36HE3/57T require a heatsink for 1500 W pulse handling?
No external heatsink is required for SMCG36HE3/57T during single-pulse 1500 W events, as its thermal design relies on transient thermal impedance and PCB copper pad conduction. The datasheet specifies mounting on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal - sufficient to absorb and dissipate surge energy without exceeding TJ max. = 150 °C.
Can SMCG36HE3/57T replace SMCG36A-E3/57T in an existing design?
Yes, SMCG36HE3/57T is a direct drop-in replacement for SMCG36A-E3/57T in terms of footprint, electrical specs, and soldering profile - but adds AEC-Q101 qualification and Class 2 whisker resistance. No PCB changes are needed; however, qualification documentation and test reports for automotive use must be updated to reflect the HE3 variant's enhanced reliability validation.
SMCG36HE3/57T 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 64.3V
- Current - Peak Pulse (10/1000µs):
- 23.3A
- 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)
SMCG36HE3/57T FAQ
1.How can I place an order for SMCG36HE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG36HE3/57T 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 SMCG36HE3/57T reliable?
The price and inventory of SMCG36HE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG36HE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG36HE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG36HE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG36HE3/57T?
SMCG36HE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG36HE3/57T 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 SMCG36HE3/57T?
For technical support, including SMCG36HE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG36HE3/57T requirements.
6.How does Aetrix verify that SMCG36HE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG36HE3/57T 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 SMCG36HE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG36HE3/57T?
All SMCG36HE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG36HE3/57T, 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 SMCG36HE3/57T part is unused and in its original packaging.
Return procedure for SMCG36HE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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