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Vishay General Semiconductor - Diodes Division SMCG36CHE3/9AT
- Part No.:
- SMCG36CHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG36CHE3/9AT.pdf
- Description:
- TVS DIODE 36VWM 64.3VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,871
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Product details
Overview
SMCG36CHE3/9AT from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) in DO-215AB (SMCG) package, designed for robust overvoltage protection of signal and power lines. It features a 36 V stand-off voltage (VWM), 1500 W peak pulse power (PPPM), clamping voltage of 58.1 V at 25.8 A, AEC-Q101 qualification, and RoHS-compliant matte tin-plated terminals.
For engineers reviewing the SMCG36CHE3/9AT datasheet, SMCG36CHE3/9AT pinout, SMCG36CHE3/9AT application, or SMCG36CHE3/9AT equivalent, this device is selected for automotive sensor line protection, industrial I/O interface surge immunity, and telecom port-level ESD/transient suppression where bidirectional clamping, low clamping ratio, and high surge current capability are critical.
Technical Context
The SMCG36CHE3/9AT is a bi-directional silicon avalanche diode operating symmetrically in both polarities, with breakdown voltage (VBR) specified as 40.0–44.2 V at 1.0 mA test current. Its clamping behavior follows IEEE C62.35 standards, delivering 58.1 V maximum VC under 10/1000 µs 25.8 A surge, enabling reliable protection of downstream ICs without forward conduction concerns.
Thermally, it exhibits RθJA = 75 °C/W and RθJL = 15 °C/W, supporting operation up to +150 °C junction temperature. The device is qualified per AEC-Q101, with MSL Level 1 moisture sensitivity and JESD 201 Class 2 whisker resistance - confirming suitability for reflow-soldered automotive PCB assemblies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for protected circuit. |
| VBR min/max | 40.0 / 44.2 V at 1.0 mA - Ensures predictable, repeatable avalanche onset across production lots. |
| VC @ IPPM | 58.1 V at 25.8 A - Clamping voltage during 10/1000 µs surge; determines maximum stress on protected load. |
| PPPM | 1500 W - Peak pulse power handling capacity; supports IEC 61000-4-5 Level 4 (4 kV) surge events. |
| ID @ VWM | 1.0 µA - Ultra-low leakage at rated stand-off voltage; minimizes standby power loss in battery-powered systems. |
| TJ max | +150 °C - Enables deployment in under-hood automotive environments and high-temperature industrial enclosures. |
Pinout & Package
Package: DO-215AB (SMCG) - surface-mount gull-wing leaded case with 0.31" × 0.31" copper pad footprint, UL 94 V-0 molding compound, and no polarity marking (bi-directional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | No functional distinction between terminals; either side connects to protected line, other to ground or reference rail. |
| Lead 1 / Lead 2 | Matte tin-plated terminations | Solderable per J-STD-002/JESD 22-B102; compatible with lead-free reflow profiles up to 260 °C peak. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control, ADAS, and body electronics. |
| 1500 W peak pulse power | Withstands 4 kV IEC 61000-4-5 combination wave surges without degradation when mounted on 8 mm × 8 mm copper pads. |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage overshoot during fast transients - critical for protecting 3.3 V or 5 V logic interfaces. |
| MSL Level 1, 260 °C peak | Enables single-pass lead-free reflow without baking; eliminates moisture-related popcorning risk in high-volume SMT lines. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor signal lines (e.g., oxygen, pressure, temperature sensors) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional TVS placed between signal line and chassis ground, clamping ± transients within nanoseconds. Use Value: Prevents latch-up or permanent damage to MCU analog front-ends and transceivers while maintaining signal integrity below 58.1 V. | Use Scenario: Shielding digital input/output channels of programmable logic controllers against field-induced surges from motor drives, solenoids, and relay coils. IC Role / Device Role / Timing Role: Standoff-connected TVS on each I/O pin, absorbing repetitive 1 kV/2 kV surges per IEC 61000-4-4. Use Value: Extends mean time between failures (MTBF) by eliminating transient-induced firmware resets and hardware faults in factory automation systems. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Surge protection on Ethernet PHY differential pairs, RS-485 bus lines, or DSL line drivers exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential pair or line-to-ground, responding in <1 ps. Use Value: Maintains signal fidelity up to 100 MHz while suppressing common-mode transients up to 1500 W without adding capacitance (>400 pF typical). | Use Scenario: Secondary-side overvoltage clamp in AC/DC adapters and USB PD chargers, safeguarding synchronous rectifiers and output capacitors. IC Role / Device Role / Timing Role: Fast-acting crowbar device triggered by output overvoltage or feedback loop failure. Use Value: Limits secondary-side voltage excursion to ≤58.1 V, preventing catastrophic failure of 60 V-rated MOSFETs and electrolytic capacitors. |
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 | DO-214AC (SMA) package; lower PPPM (400 W); VBR 40–44.4 V; same VWM and VC. | Limited to lower-energy surges; unsuitable for IEC 61000-4-5 Level 4; smaller thermal mass reduces sustained surge handling. | Select SMAJ36CA only for cost-sensitive consumer applications with ≤1 kV surge exposure and space-constrained layouts. |
| SMCJ36CA | DO-214AB (SMC) package; higher PPPM (1500 W); identical VWM, VBR, and VC; larger footprint and thermal mass. | Better thermal performance under repetitive surges; requires larger PCB area; not AEC-Q101 qualified (commercial grade only). | Choose SMCJ36CA for industrial applications needing higher thermal margin but lacking automotive qualification requirements. |
Compared with SMAJ36CA and SMCJ36CA, the SMCG36CHE3/9AT uniquely combines AEC-Q101 qualification, 1500 W surge rating, and DO-215AB's optimized gull-wing geometry for automated placement - making it the preferred choice for automotive-tier-1 suppliers requiring validated reliability and process compatibility.
Availability
SMCG36CHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface designs requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMCG36CHE3/9AT 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMCG series was engineered specifically for high-reliability bi-directional transient suppression in automotive and industrial environments, balancing compact size, AEC-Q101 compliance, and industry-leading 1500 W surge capability in the DO-215AB footprint.
FAQ
What is the clamping voltage of the SMCG36CHE3/9AT under a 10/1000 µs surge?
The SMCG36CHE3/9AT has a maximum clamping voltage (VC) of 58.1 V at 25.8 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and reflects worst-case clamping performance when mounted on the recommended 8.0 mm × 8.0 mm copper pads - ensuring protected circuits remain below critical voltage thresholds during standardized surge events.
Is the SMCG36CHE3/9AT suitable for automotive applications?
Yes, the SMCG36CHE3/9AT is AEC-Q101 qualified and explicitly rated for automotive use. Its qualification includes temperature cycling, high-temperature reverse bias, and ESD testing per JESD22-A114. The HE3 suffix denotes AEC-Q101 compliance, and its DO-215AB package supports lead-free reflow up to 260 °C - meeting stringent requirements for engine control units and ADAS modules.
Does the SMCG36CHE3/9AT have polarity markings?
No, the SMCG36CHE3/9AT is a bi-directional TVS and carries no polarity marking on the package. As confirmed in the Vishay datasheet, bi-directional types like SMCG36CHE3/9AT have symmetrical electrical characteristics in both directions, so either terminal may be connected to the protected line or ground without affecting performance.
What is the maximum junction temperature rating for the SMCG36CHE3/9AT?
The SMCG36CHE3/9AT has a maximum junction temperature (TJ max) of +150 °C, as specified in the Vishay datasheet under "Maximum Ratings." This enables reliable operation in under-hood automotive environments, industrial motor drives, and enclosed power supplies where ambient temperatures exceed 105 °C.
How does the SMCG36CHE3/9AT differ from the commercial-grade SMCG36A-E3/9AT?
The SMCG36CHE3/9AT differs from SMCG36A-E3/9AT solely in qualification level: the "HE3" suffix indicates AEC-Q101 qualification, while "E3" denotes commercial-grade RoHS compliance only. Both share identical electrical specs (VWM = 36 V, VC = 58.1 V), DO-215AB package, and thermal characteristics - but only SMCG36CHE3/9AT is certified for automotive production use.
SMCG36CHE3/9AT 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
SMCG36CHE3/9AT FAQ
1.How can I place an order for SMCG36CHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG36CHE3/9AT 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 SMCG36CHE3/9AT reliable?
The price and inventory of SMCG36CHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG36CHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG36CHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG36CHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG36CHE3/9AT?
SMCG36CHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG36CHE3/9AT 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 SMCG36CHE3/9AT?
For technical support, including SMCG36CHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG36CHE3/9AT requirements.
6.How does Aetrix verify that SMCG36CHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG36CHE3/9AT 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 SMCG36CHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG36CHE3/9AT?
All SMCG36CHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG36CHE3/9AT, 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 SMCG36CHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG36CHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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