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Vishay General Semiconductor - Diodes Division SMCG36-E3/9AT
- Part No.:
- SMCG36-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG36-E3/9AT.pdf
- Description:
- TVS DIODE 36VWM 64.3VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,201
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Product details
Overview
SMCG36-E3/9AT from Vishay General Semiconductor is a bi-directional surface-mount Transient Voltage Suppressor (TVS) in the DO-215AB (SMCG) package, designed for clamping voltage transients on signal and power lines. It features a 36 V stand-off voltage (VWM), 1500 W peak pulse power (PPPM), 58.1 V maximum clamping voltage (VC) at IPPM, and AEC-Q101 qualification for automotive reliability.
For engineers reviewing the SMCG36-E3/9AT datasheet, SMCG36-E3/9AT pinout, SMCG36-E3/9AT application, or SMCG36-E3/9AT equivalent, this device is selected for robust ESD and surge protection in automotive sensor interfaces, industrial I/O lines, and DC power rail conditioning where low clamping voltage, fast response (<1 ns), and MSL Level 1 reflow compatibility are critical.
Technical Context
The SMCG36-E3/9AT operates as a bi-directional avalanche diode with symmetrical breakdown characteristics in both polarities, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable leakage performance and long-term reliability under repeated transient stress.
Designed for 10/1000 µs surge waveforms per ANSI/IEEE C62.35, it delivers 25.8 A peak pulse current (IPPM) while maintaining VC ≤ 58.1 V - a key parameter for safeguarding 3.3 V and 5 V logic interfaces downstream of protected nodes. Thermal resistance RθJA is 75 °C/W on standard 8.0 mm × 8.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 36 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin for 36 V nominal systems. |
| VC @ IPPM (Clamping Voltage) | 58.1 V - Maximum voltage seen by protected circuit during 25.8 A 10/1000 µs surge; ensures downstream ICs rated ≥ 60 V survive. |
| PPPM (Peak Pulse Power) | 1500 W - Sustains high-energy transients like ISO 7637-2 Pulse 5a without degradation when mounted per recommended pad layout. |
| ID @ VWM (Reverse Leakage) | 1.0 µA - Negligible standby current at 36 V; avoids loading sensitive analog or low-power sensor circuits. |
| TJ max. (Junction Temp) | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures with elevated ambient temperatures. |
| MSL Level | Level 1 (JEDEC J-STD-020) - Supports lead-free reflow up to 260 °C peak without moisture-induced damage. |
| AEC-Q101 Qualified | Yes - 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 package with matte tin-plated leads, 0.220–0.245 inch body length, 0.115–0.125 inch width, and 0.024–0.040 inch lead span. Complies with UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (Bi-directional) | Transient conduction path | No polarity marking; terminals are functionally identical - connects across protected line and ground or between differential lines. |
| Case / Body | Thermal and mechanical interface | Non-conductive molded compound; thermal path relies on soldered leads to PCB copper; no exposed metal tab or heatsink pad. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping symmetry | Identical VBR min/max (40.0 V / 44.2 V) and VC in both directions - eliminates need for orientation-aware placement in AC or floating systems. |
| Low incremental surge resistance | Enables tight VC control (58.1 V) despite 1500 W surge - reduces voltage overshoot risk on fast-rising transients like EFT or lightning-induced surges. |
| Glass passivated junction | Stable breakdown characteristics over lifetime and temperature; prevents parametric drift under humidity or thermal cycling stress. |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, ADAS sensors, and infotainment power rails - meets vibration, thermal shock, and HTOL requirements. |
| MSL Level 1 compliance | Zero bake requirement prior to SMT assembly - supports direct placement into high-volume automated lines using standard JEDEC-compliant reflow profiles. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor outputs (e.g., pressure, temperature) 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 to clamp ±100 V transients within nanoseconds. Use Value: Prevents latch-up or gate oxide damage in downstream op-amps and transceivers while maintaining signal integrity below 58.1 V clamping threshold. |
Use Scenario: Shielding 24 V digital input modules in programmable logic controllers from field-wiring surges and relay contact bounce. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminal and common rail to absorb repetitive 1 kV/40 Ω transients per IEC 61000-4-5. Use Value: Ensures >100,000 surge cycles without parameter shift, enabled by glass-passivated junction and 150 °C TJ max rating. |
| DC Power Rail Conditioning | Telecom Line Interface Protection |
Use Scenario: Safeguarding 36 V intermediate bus rails in telecom power supplies and motor drives against ISO 16750-2 load dump events. IC Role / Device Role / Timing Role: Parallel-connected TVS shunting surge energy to ground during 12 V–36 V system overvoltage conditions. Use Value: Delivers 1500 W peak power handling with only 58.1 V clamping - preserves headroom for downstream 60 V-rated MOSFETs and controllers. |
Use Scenario: Protecting RS-485/RS-422 transceiver pins in base station backhaul equipment exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Bi-directional suppression element placed differential-mode across A/B lines and common-mode to ground. Use Value: Symmetrical clamping ensures balanced protection without skew or signal distortion; 1.0 µA ID avoids loading high-impedance termination networks. |
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 | Uni-directional; 36 V VWM; 58.1 V VC; SMA package (DO-214AC); lower PPPM (400 W). | Requires correct polarity orientation; unsuitable for AC or floating signals; limited to single-rail DC protection. | Select when cost sensitivity outweighs bi-directionality needs and surge energy is ≤400 W. |
| SMCJ36CA-E3/9AT | Bi-directional; same VWM/VC/PPPM; SMC package (DO-214AB); larger footprint; higher thermal mass. | Better heat dissipation in high-duty-cycle surge environments; incompatible with fine-pitch layouts requiring DO-215AB's smaller size. | Prefer when board space allows and sustained thermal performance is prioritized over miniaturization. |
Compared with SMAJ36A-E3/57T and SMCJ36CA-E3/9AT, the SMCG36-E3/9AT uniquely combines bi-directional capability, 1500 W surge rating, and DO-215AB's compact gull-wing footprint - making it optimal for space-constrained automotive and industrial modules needing polarity-agnostic protection.
Availability
SMCG36-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and DC power rail conditioning requiring stable component supply, AEC-Q101 compliance, and MSL Level 1 reflow support.
Supply support for SMCG36-E3/9AT 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 application-specific optimization.
The SMCG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation and precise clamping performance.
FAQ
What is the clamping voltage of the SMCG36-E3/9AT under maximum surge conditions?
The SMCG36-E3/9AT has a maximum clamping voltage (VC) of 58.1 V at its rated peak pulse current (IPPM) of 25.8 A, measured with a 10/1000 µs waveform. This value is guaranteed across temperature and ensures protected circuits remain below critical voltage thresholds during standardized surge events. The SMCG36-E3/9AT maintains this clamping performance due to its low incremental surge resistance and optimized junction design.
Is the SMCG36-E3/9AT suitable for automotive applications?
Yes, the SMCG36-E3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its 150 °C maximum junction temperature, MSL Level 1 reflow compatibility, and validation across temperature cycling, HTRB, and ESD tests confirm suitability for engine control units, ADAS sensors, and body electronics. The SMCG36-E3/9AT meets ISO 7637-2 and ISO 16750-2 surge immunity requirements when applied per Vishay's recommended layout.
Does the SMCG36-E3/9AT have polarity markings?
No, the SMCG36-E3/9AT is a bi-directional TVS and carries no polarity marking on its DO-215AB package. Both terminals are functionally identical, allowing placement without orientation concerns across AC-coupled lines, differential buses, or floating grounds. This distinguishes it from uni-directional variants like SMCG36A, which feature a cathode band. The SMCG36-E3/9AT's symmetry simplifies layout and eliminates assembly errors related to polarity.
What is the reverse leakage current of the SMCG36-E3/9AT at its stand-off voltage?
The SMCG36-E3/9AT exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 36 V stand-off voltage (VWM) and 25 °C ambient temperature. This ultra-low leakage ensures minimal loading on high-impedance sensor outputs or precision reference circuits. At elevated temperatures, leakage remains well below 10 µA - verified per the device's electrical characteristics table in Vishay document 88457. The SMCG36-E3/9AT achieves this via glass passivation and controlled doping uniformity.
How does the DO-215AB package of the SMCG36-E3/9AT compare to SMA or SMC packages in thermal performance?
The DO-215AB (SMCG) package of the SMCG36-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W on standard 8.0 mm × 8.0 mm copper pads - higher than SMC (≈50 °C/W) but lower than SMA (≈100 °C/W). Its gull-wing leads provide better solder joint reliability than flat leads, and its compact size enables dense routing. While the SMCG36-E3/9AT trades some thermal mass for miniaturization, its 1500 W PPPM rating is maintained through optimized internal structure and validated pad layout.
SMCG36-E3/9AT 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:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG36-E3/9AT FAQ
1.How can I place an order for SMCG36-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG36-E3/9AT 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 SMCG36-E3/9AT reliable?
The price and inventory of SMCG36-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG36-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG36-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG36-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG36-E3/9AT?
SMCG36-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG36-E3/9AT 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 SMCG36-E3/9AT?
For technical support, including SMCG36-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG36-E3/9AT requirements.
6.How does Aetrix verify that SMCG36-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG36-E3/9AT 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 SMCG36-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG36-E3/9AT?
All SMCG36-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG36-E3/9AT, 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 SMCG36-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG36-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG36-E3/9AT Tags
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