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Vishay General Semiconductor - Diodes Division SMCJ36CHE3/9AT
- Part No.:
- SMCJ36CHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36CHE3/9AT.pdf
- Description:
- TVS DIODE 36VWM 64.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,527
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Product details
Overview
SMCJ36CHE3/9AT from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection of sensitive electronics. It features a 36 V stand-off voltage (VWM), 58.1 V clamping voltage (VC) at 25.8 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with AEC-Q101 qualification for automotive reliability.
For engineers reviewing the SMCJ36CHE3/9AT datasheet, SMCJ36CHE3/9AT pinout, SMCJ36CHE3/9AT application, or SMCJ36CHE3/9AT equivalent, key selection criteria include clamping performance under 10/1000 µs transients, bi-directional surge handling without polarity constraints, RoHS-compliant AEC-Q101 qualification, and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
The SMCJ36CHE3/9AT operates as a bi-directional avalanche diode, leveraging glass-passivated junction technology to deliver sub-nanosecond response to ESD and lightning-induced transients. Its symmetrical breakdown behavior ensures identical clamping in both polarities, eliminating need for orientation during placement.
Designed for surface-mount use on 8.0 mm × 8.0 mm copper pads per terminal, it achieves thermal resistance of 75 °C/W (junction-to-ambient) and supports continuous operation from –55 °C to +150 °C junction temperature, with 1.0 µA max reverse leakage at VWM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 40.0 V / 44.2 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 58.1 V - Clamped voltage across device during 25.8 A 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - Peak transient energy absorption capability under standardized waveform |
| ID @ VWM | 1.0 µA - Low leakage ensures minimal standby power loss and signal integrity in high-impedance lines |
| TJ max | +150 °C - Enables deployment in under-hood automotive environments and industrial enclosures |
| Qualification | AEC-Q101 - Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, bi-directional configuration with no polarity marking - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Either terminal serves as input/output for bidirectional surge current; no cathode band marking required |
| Case (body) | Thermal and mechanical interface | DO-214AB molded body provides UL 94 V-0 flammability rating and solderable matte tin-plated leads |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules requiring long-term field reliability |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) without degradation |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), critical for protecting high-speed interfaces |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Primary clamping element placed between power rail and ground, absorbing >1000 W surges within nanoseconds. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers by limiting rail voltage to ≤58.1 V during 25.8 A surges. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation systems exposed to relay switching noise. IC Role / Device Role / Timing Role: Bi-directional shunt protector on differential or single-ended signal lines referenced to local ground. Use Value: Maintains signal fidelity by clamping ±58.1 V transients while adding only 1.0 µA leakage at 36 V bias. |
| Telecom DC Power Feeds | Consumer USB/Type-C Port Protection |
Use Scenario: Securing -48 V telecom power distribution boards against lightning-induced surges on central office equipment. IC Role / Device Role / Timing Role: High-power TVS mounted directly at board edge connectors to divert surge energy before reaching regulators and FPGAs. Use Value: Handles 1500 W pulses without derating at elevated ambient temperatures up to +125 °C due to low RθJA (75 °C/W). | Use Scenario: Adding robust overvoltage immunity to USB 3.2 Gen 2 Type-C ports in laptops and docking stations. IC Role / Device Role / Timing Role: Bi-directional clamp on VBUS line to absorb hot-swap and ESD events while maintaining <1 µA leakage below 36 V. Use Value: Enables compliance with IEC 61000-4-2 Level 4 (±15 kV contact) without compromising low-power standby modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36AHE3/A | Lower PPPM (400 W), smaller DO-214AC (SMA) package, same VWM and VC | Suitable for space-constrained consumer designs with lower surge exposure | Select when board area is limited and peak surge energy does not exceed 400 W |
| 1.5KE36CA | Through-hole TO-218 package, higher thermal mass but incompatible with SMT assembly | Used in legacy industrial power supplies where manual assembly remains standard | Choose only if existing production line lacks SMT capability or requires higher sustained power dissipation |
Compared with SMAJ36AHE3/A and 1.5KE36CA, the SMCJ36CHE3/9AT delivers 3.75× higher surge power handling in an AEC-Q101-qualified SMT package, enabling automotive-grade protection without through-hole compromises or derating in compact layouts.
Availability
SMCJ36CHE3/9AT is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom infrastructure requiring stable component supply and long-lifecycle support.
Supply support for SMCJ36CHE3/9AT 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 and automotive qualification.
The SMCJ series was engineered specifically for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation and 1500 W surge capability.
FAQ
What is the clamping voltage of the SMCJ36CHE3/9AT under maximum rated surge current?
The SMCJ36CHE3/9AT clamps to 58.1 V when subjected to its maximum rated peak pulse current of 25.8 A under the standardized 10/1000 µs waveform. This value is measured and guaranteed per Vishay's datasheet Document Number 88394, ensuring predictable overvoltage limiting for protected circuitry.
Is the SMCJ36CHE3/9AT suitable for automotive applications?
Yes, the SMCJ36CHE3/9AT carries AEC-Q101 qualification, confirming its reliability for automotive use cases including engine control units, body electronics, and ADAS sensors. Its DO-214AB package, –55 °C to +150 °C operating range, and robust surge handling make it appropriate for under-hood and chassis-mounted systems.
Does the SMCJ36CHE3/9AT have polarity markings?
No - the SMCJ36CHE3/9AT is a bi-directional TVS diode and carries no cathode band or polarity marking. Its symmetrical construction allows installation in either orientation, simplifying PCB layout and automated placement for AC-coupled or floating signal paths.
What is the maximum reverse leakage current for the SMCJ36CHE3/9AT at its stand-off voltage?
At its 36 V stand-off voltage (VWM), the SMCJ36CHE3/9AT exhibits a maximum reverse leakage current of 1.0 µA at 25 °C. This low leakage preserves signal integrity and minimizes power loss in high-impedance circuits such as sensor bias networks and precision analog front-ends.
How does the SMCJ36CHE3/9AT differ from the uni-directional SMCJ36A variant?
The SMCJ36CHE3/9AT is bi-directional with symmetrical clamping in both polarities and no polarity marking, whereas the uni-directional SMCJ36A has a cathode band and conducts only in reverse bias. The bi-directional version is preferred for AC signals, differential buses, or any application where voltage polarity reversal cannot be guaranteed.
SMCJ36CHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- 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 (SMCJ)
SMCJ36CHE3/9AT FAQ
1.How can I place an order for SMCJ36CHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36CHE3/9AT 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 SMCJ36CHE3/9AT reliable?
The price and inventory of SMCJ36CHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ36CHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ36CHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36CHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36CHE3/9AT?
SMCJ36CHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36CHE3/9AT 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 SMCJ36CHE3/9AT?
For technical support, including SMCJ36CHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36CHE3/9AT requirements.
6.How does Aetrix verify that SMCJ36CHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ36CHE3/9AT 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 SMCJ36CHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ36CHE3/9AT?
All SMCJ36CHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36CHE3/9AT, 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 SMCJ36CHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ36CHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ36CHE3/9AT Tags
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