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Vishay General Semiconductor - Diodes Division SMCJ36AHE3/9AT
- Part No.:
- SMCJ36AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36AHE3/9AT.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,696
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Product details
Overview
SMCJ36AHE3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 36 V standoff voltage, 40.0–44.2 V breakdown voltage at 1 mA, and 58.1 V clamping voltage at 25.8 A peak pulse current. It delivers 1500 W peak pulse power (10/1000 μs waveform) and operates across -55 °C to +150 °C junction temperature range, commonly used to protect automotive power rails and industrial sensor interfaces.
For engineers reviewing the SMCJ36AHE3/9AT datasheet, SMCJ36AHE3/9AT pinout, SMCJ36AHE3/9AT application, or SMCJ36AHE3/9AT equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 1.0 μA max reverse leakage at 36 V, thermal resistance of 75 °C/W (junction-to-ambient), and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD, lightning-induced transients, and inductive switching spikes. Its unidirectional configuration provides forward conduction capability with 3.5 V forward voltage at 100 A, while maintaining tight clamping performance under repetitive surge stress.
The device is rated for 200 A non-repetitive peak forward surge current (8.3 ms half-sine), supports MSL Level 1 moisture sensitivity per J-STD-020, and features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Polarity is marked by a cathode band on the SMC package body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 36 V - Maximum continuous reverse operating voltage before clamping begins |
| Breakdown Voltage (VBR) | 40.0–44.2 V at 1 mA - Confirmed minimum/maximum threshold where avalanche conduction initiates |
| Clamping Voltage (VC) | 58.1 V at 25.8 A IPPM - Peak voltage seen across device during 10/1000 μs surge, limiting downstream stress |
| Peak Pulse Power (PPPM) | 1500 W - Energy-handling capacity under standardized transient waveform, defining surge robustness |
| Reverse Leakage (ID) | 1.0 μA max at 36 V - Low off-state current ensures minimal power loss and signal integrity in standby |
| Junction Temperature Range | -55 °C to +150 °C - Enables deployment in under-hood automotive and industrial environments |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads. Cathode indicated by molded band on body. Mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal per Vishay recommended layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to system ground or lower-potential rail in unidirectional protection configuration |
| Cathode | Avalanche conduction node / Surge current sink | Connected to protected line (e.g., 36 V supply rail); clamps transients toward anode when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMC package | Enables compact PCB layout and compatibility with automated pick-and-place equipment |
| Glass-passivated junction | Ensures stable avalanche characteristics, long-term reliability, and resistance to environmental degradation |
| 1500 W peak pulse rating | Provides robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 36 V systems |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body electronics, and ADAS modules requiring extended lifetime |
| MSL Level 1 rating | Permits unlimited floor life and reflow without baking, simplifying manufacturing flow |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 36 V battery-fed control modules (e.g., HVAC actuators, seat motor drivers) from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp positive-going surges above 40 V. Use Value: Limits voltage excursion to ≤58.1 V during 25.8 A surge, preventing damage to downstream DC-DC converters and microcontrollers. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors exposed to cable coupling noise. IC Role / Device Role / Timing Role: TVS connected across signal and return path to absorb fast-rising common-mode transients. Use Value: Sub-1 ns response ensures clamping occurs before sensitive op-amps or ADC inputs are overstressed. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Shielding 36 V PoE-powered network switches from induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input stage, upstream of bulk capacitance and primary regulator. Use Value: 1500 W rating handles multiple repetitions of 10/1000 μs surges without parameter drift or failure. |
Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in smart home appliances (e.g., vacuum cleaners, power tools). IC Role / Device Role / Timing Role: Mounted across motor terminals to shunt inductive kickback energy into ground path. Use Value: 200 A peak forward surge rating accommodates high-current commutation events without bond wire fusing. |
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), SMA package (smaller footprint, higher RθJA = 110 °C/W), same VWM/VBR/VC specs | Better suited for space-constrained consumer devices with lower surge exposure; not AEC-Q101 qualified | Select when board area is critical and surge threat level is below IEC 61000-4-5 Level 3 |
| SMCJ36CAHE3/9AT | Bidirectional variant with identical VWM/VBR/VC ratings but symmetrical clamping in both polarities | Required for AC-coupled or floating signal lines where negative transients must also be suppressed | Choose only if bidirectional protection is mandated-unidirectional SMCJ36AHE3/9AT offers lower cost and simpler grounding |
Compared with SMAJ36AHE3/A and SMCJ36CAHE3/9AT, the SMCJ36AHE3/9AT uniquely balances automotive-grade reliability, 1500 W surge capacity, and unidirectional efficiency-making it optimal for 36 V DC power rail protection where polarity is fixed and surge severity is high.
Availability
SMCJ36AHE3/9AT is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power supplies requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ36AHE3/9AT 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMCJ series targets high-energy transient suppression in harsh environments, with design focus on automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and 1500 W surge handling are mandatory.
FAQ
What is the clamping voltage of SMCJ36AHE3/9AT at its rated peak pulse current?
The SMCJ36AHE3/9AT has a maximum clamping voltage (VC) of 58.1 V at 25.8 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is measured per ANSI/IEEE C62.35 standards. The SMCJ36AHE3/9AT maintains this clamping performance across its full operating temperature range.
Is SMCJ36AHE3/9AT qualified for automotive applications?
Yes, SMCJ36AHE3/9AT is AEC-Q101 qualified, confirming its reliability for automotive use cases including engine control units, body electronics, and ADAS subsystems. The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification, and test data covers temperature cycling, highly accelerated life testing (HALT), and ESD robustness per automotive requirements.
What does the "9AT" suffix indicate in SMCJ36AHE3/9AT?
The "9AT" suffix specifies the packaging format: 13-inch diameter plastic tape and reel containing 3500 units. This delivery mode supports high-volume SMT assembly lines and is distinct from "57T" (7-inch reel, 850 units). The "HE3" portion confirms RoHS compliance and AEC-Q101 qualification, while "A" denotes unidirectional polarity and "36" indicates 36 V standoff voltage.
How does SMCJ36AHE3/9AT differ from bidirectional SMCJ36CAHE3/9AT?
The SMCJ36AHE3/9AT is unidirectional and clamps only positive transients relative to ground, whereas SMCJ36CAHE3/9AT is bidirectional and suppresses surges of either polarity. Both share identical VWM (36 V), VBR (40.0–44.2 V), and VC (58.1 V) ratings, but the unidirectional SMCJ36AHE3/9AT allows forward conduction and is preferred for DC power rail protection with defined polarity.
What is the thermal resistance of SMCJ36AHE3/9AT, and how does it affect PCB layout?
The SMCJ36AHE3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" copper pads per terminal. To maintain safe operation under sustained power dissipation, PCB layout must adhere to Vishay's recommended pad dimensions and avoid excessive trace length or isolation. Larger copper areas reduce RθJA and improve surge endurance.
SMCJ36AHE3/9AT 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:
- 1
- Bidirectional Channels:
- -
- 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)
SMCJ36AHE3/9AT FAQ
1.How can I place an order for SMCJ36AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36AHE3/9AT 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 SMCJ36AHE3/9AT reliable?
The price and inventory of SMCJ36AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ36AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ36AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36AHE3/9AT?
SMCJ36AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36AHE3/9AT 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 SMCJ36AHE3/9AT?
For technical support, including SMCJ36AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36AHE3/9AT requirements.
6.How does Aetrix verify that SMCJ36AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ36AHE3/9AT 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 SMCJ36AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ36AHE3/9AT?
All SMCJ36AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36AHE3/9AT, 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 SMCJ36AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ36AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ36AHE3/9AT Tags
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