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Vishay General Semiconductor - Diodes Division SMCJ36CAHE3/9AT
- Part No.:
- SMCJ36CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36CAHE3/9AT.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,586
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Product details
Overview
SMCJ36CAHE3/9AT from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, designed for clamping voltage transients up to 1500 W peak pulse power with 58.1 V maximum clamping voltage at 25.8 A peak pulse current and 36 V standoff voltage. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics.
For engineers reviewing the SMCJ36CAHE3/9AT datasheet, SMCJ36CAHE3/9AT pinout, SMCJ36CAHE3/9AT application, or SMCJ36CAHE3/9AT equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 1500 W surge rating, low thermal resistance (RθJL = 15 °C/W), and RoHS-compliant matte tin plating compatible with J-STD-002 soldering standards.
Technical Context
This TVS diode operates bidirectionally with symmetric breakdown voltage range of 40.0–44.2 V at 1 mA test current and 36 V maximum reverse standoff voltage. Its fast response time and low incremental surge resistance enable effective suppression of 10/1000 μs waveform transients induced by inductive switching or ESD events.
Designed for high-reliability environments, SMCJ36CAHE3/9AT meets MSL level 1 per J-STD-020, supports peak junction temperature up to +150 °C, and features glass passivated chip junction with UL 94 V-0 molding compound - critical for automotive under-hood and industrial control applications requiring long-term stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 40.0 V / 44.2 V at 1 mA - Confirmed breakdown threshold ensures reliable turn-on during overvoltage |
| VC @ IPPM | 58.1 V at 25.8 A - Clamping voltage limits downstream device stress during 10/1000 μs surge |
| PPPM | 1500 W - Peak pulse power handling capacity for transient energy absorption |
| RθJL | 15 °C/W - Low junction-to-lead thermal resistance enables efficient heat transfer to PCB copper pads |
| TJ max | +150 °C - Extended junction temperature rating supports operation in harsh ambient conditions |
| AEC-Q101 | Qualified - Validated for automotive electronic systems per stress test requirements |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; polarity unmarked for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Accepts surge current from either polarity; connects to protected line |
| Cathode | Transient current exit (bidirectional) | Completes clamping path to ground or reference rail; no band marking |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body electronics, and ADAS sensor interfaces |
| 1500 W peak pulse power | Handles high-energy transients from load dump or relay coil flyback in 12 V/24 V systems |
| Low RθJL = 15 °C/W | Reduces thermal derating impact, sustaining performance under repeated surge events |
| UL 94 V-0 molding | Ensures flame-retardant housing for safety-critical industrial and transportation equipment |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protection of 12 V battery-fed ECUs against load dump transients up to ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed between power rail and ground. Use Value: Limits voltage excursion to ≤58.1 V during 1500 W surges, preventing damage to MCU power inputs and CAN transceivers. | Use Scenario: Shielding analog outputs of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Fast-response shunt protector on differential or single-ended sensor output traces. Use Value: Sub-nanosecond response clamps transients before reaching precision ADC front-end, preserving measurement integrity. |
| Telecom DC Power Feeds | Motor Drive Gate Driver Circuits |
Use Scenario: Safeguarding PoE-powered equipment from lightning-induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input before DC/DC converter stage. Use Value: Withstands repetitive 10/1000 μs surges up to 25.8 A while maintaining 36 V standby blocking capability. | Use Scenario: Protecting high-side and low-side gate drivers in BLDC inverters from Miller-induced voltage spikes. IC Role / Device Role / Timing Role: Localized clamping device across gate-source terminals or supply rails. Use Value: 58.1 V clamping prevents gate oxide breakdown in 60 V-rated MOSFETs during fast-switching dv/dt events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CAHE3/52T | Lower PPPM = 600 W; SMB package (smaller footprint, higher RθJA) | Suitable for space-constrained consumer electronics with lower surge exposure | Select when board area is limited and peak surge energy does not exceed 600 W |
| SMCJ36AHE3/9AT | Unidirectional version; same VWM, VBR, and PPPM, but cathode-marked and asymmetric conduction | Required where DC-biased lines need polarity-specific clamping only | Choose only if circuit topology mandates unidirectional protection and ground-referenced design |
Compared with SMBJ36CAHE3/52T and SMCJ36AHE3/9AT, the SMCJ36CAHE3/9AT uniquely delivers 1500 W bidirectional clamping in an AEC-Q101-qualified SMC package - making it optimal for automotive power modules and industrial controllers needing robust, polarity-agnostic surge immunity without layout redesign.
Availability
SMCJ36CAHE3/9AT is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, telecom DC feed protection, and motor drive gate driver circuits requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ36CAHE3/9AT 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 and application-specific performance.
The SMCJ series is engineered for high-energy transient suppression in demanding environments - targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated through proven clamping robustness and qualification rigor.
FAQ
What is the clamping voltage of SMCJ36CAHE3/9AT at its rated peak pulse current?
The SMCJ36CAHE3/9AT has a maximum clamping voltage (VC) of 58.1 V at its rated peak pulse current (IPPM) of 25.8 A under 10/1000 μs waveform conditions. This value is measured per ANSI/IEEE C62.35 and ensures predictable voltage limiting during surge events. The SMCJ36CAHE3/9AT maintains this clamping performance across its qualified operating temperature range.
Is SMCJ36CAHE3/9AT suitable for automotive applications?
Yes, SMCJ36CAHE3/9AT is AEC-Q101 qualified and explicitly designated for automotive use with ordering code suffix HE3. It meets stress test requirements for temperature cycling, humidity, mechanical shock, and surge immunity - making it appropriate for engine control units, body control modules, and ADAS sensor interfaces. The SMCJ36CAHE3/9AT also complies with RoHS and UL 94 V-0 flammability standards required in vehicle platforms.
How does the bidirectional configuration of SMCJ36CAHE3/9AT affect its circuit implementation?
The bidirectional configuration of SMCJ36CAHE3/9AT allows placement across any two nodes subject to differential transients - such as AC signal lines, isolated power rails, or floating sensor outputs - without regard to polarity. Unlike unidirectional variants, SMCJ36CAHE3/9AT has no cathode band marking and conducts identically in both directions. This simplifies layout and eliminates orientation errors during automated assembly.
What is the thermal resistance profile of SMCJ36CAHE3/9AT and how does it impact PCB layout?
SMCJ36CAHE3/9AT has a typical junction-to-lead thermal resistance (RθJL) of 15 °C/W and junction-to-ambient (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads. To maintain reliability under repeated surges, designers must provide adequate copper pour on both terminals per the recommended pad layout. The SMCJ36CAHE3/9AT's low RθJL prioritizes heat conduction into the PCB rather than ambient air.
Does SMCJ36CAHE3/9AT require derating at elevated ambient temperatures?
Yes, SMCJ36CAHE3/9AT requires thermal derating above 25 °C ambient, per Figure 2 in Vishay document 88394. At 85 °C ambient, its peak pulse power rating drops to approximately 1050 W (70 % of 1500 W). Derating follows a linear curve to zero at +150 °C junction temperature. System-level thermal modeling must account for this using the SMCJ36CAHE3/9AT's specified RθJA and RθJL values.
SMCJ36CAHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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 (SMCJ)
SMCJ36CAHE3/9AT FAQ
1.How can I place an order for SMCJ36CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36CAHE3/9AT 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 SMCJ36CAHE3/9AT reliable?
The price and inventory of SMCJ36CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ36CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ36CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36CAHE3/9AT?
SMCJ36CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36CAHE3/9AT 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 SMCJ36CAHE3/9AT?
For technical support, including SMCJ36CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36CAHE3/9AT requirements.
6.How does Aetrix verify that SMCJ36CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ36CAHE3/9AT 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 SMCJ36CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ36CAHE3/9AT?
All SMCJ36CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36CAHE3/9AT, 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 SMCJ36CAHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ36CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ36CAHE3/9AT Tags
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