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Vishay General Semiconductor - Diodes Division SMCJ36CAHE3_A/H
- Part No.:
- SMCJ36CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36CAHE3_A/H.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,216
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Product details
Overview
SMCJ36CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients up to 1500 W peak pulse power with a 10/1000 μs waveform. It features a standoff voltage (VWM) of 36 V, breakdown voltage (VBR) min/max of 40.0 V / 44.2 V at 1.0 mA test current, and clamps to ≤58.1 V at 25.8 A peak pulse current - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power rails.
For engineers reviewing the SMCJ36CAHE3_A/H datasheet, SMCJ36CAHE3_A/H pinout, SMCJ36CAHE3_A/H application, or SMCJ36CAHE3_A/H equivalent, this device is selected for high-energy surge immunity in 36 V DC systems where AEC-Q101 qualification, low clamping voltage, and bidirectional symmetry are required - especially in engine control units, battery management interfaces, and CAN bus power conditioning stages.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping behavior during positive and negative transients. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while the SMC package supports automated placement and meets MSL level 1 per J-STD-020 at 260 °C peak reflow.
The device sustains 1500 W peak pulse power under standardized 10/1000 μs surge conditions, with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W, enabling effective heat dissipation on standard PCB copper pads (8.0 mm × 8.0 mm per terminal). It is RoHS-compliant and AEC-Q101 qualified for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before conduction begins; defines system operating margin before clamping activates. |
| VBR (min/max) | 40.0 V / 44.2 V at 1.0 mA - Confirmed breakdown threshold range; ensures predictable turn-on within 10% tolerance for robust overvoltage detection. |
| VC @ IPPM | ≤58.1 V at 25.8 A - Clamped voltage during full-rated 1500 W transient; limits downstream stress to <1.6× VWM. |
| PPPM | 1500 W - Peak pulse power handling per 10/1000 μs waveform; supports EN 61000-4-5 Level 4 surge immunity in 36 V systems. |
| IPPM | 25.8 A - Corresponding peak surge current at VC; enables design of series impedance to limit fault energy into protected circuitry. |
| TJ max | +150 °C - Maximum junction temperature; allows operation in under-hood automotive environments without derating below 125 °C ambient. |
| Leakage ID | ≤1.0 μA at VWM - Ultra-low reverse leakage preserves power rail integrity in always-on circuits like CAN transceivers or wake-up monitors. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking - terminals are symmetrical anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no band marking required. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; forms symmetrical clamping path across protected line and ground or differential pair. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power domains - supports 15-year lifecycle requirements. |
| Bidirectional clamping | Identical VBR, VC, and IPPM performance in both directions - eliminates need for dual unidirectional devices on AC-coupled or floating lines. |
| Low clamping ratio (VC/VWM) | 1.61 - Enables tighter protection margins than typical TVS diodes (often >1.7); reduces risk of overvoltage damage to 3.3 V or 5 V logic downstream. |
| MSL Level 1 rating | Compatible with standard SMT reflow profiles up to 260 °C peak - no moisture sensitivity handling required prior to assembly. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure - critical for field-reliability in industrial controls. |
Applications
| Automotive Power Rail Protection | CAN Bus Power Line Conditioning |
|---|---|
|
Use Scenario: Protecting 12 V/36 V battery-fed ECUs against load dump and alternator surge events per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed between power input and bulk capacitor, absorbing >1000 W transients within nanoseconds. Use Value: Limits voltage excursion to ≤58.1 V during 300 ms load dump, preventing latch-up or gate oxide rupture in MCU power supplies and pre-regulators. |
Use Scenario: Shielding CAN transceiver VCC pins from coupled surges induced by nearby high-current switching (e.g., solenoid drivers). IC Role / Device Role / Timing Role: Standoff-clamp TVS connected from CAN power rail to chassis ground, activated only during >36 V excursions. Use Value: Maintains CAN node uptime by suppressing transients before they exceed transceiver absolute maximum ratings (typically 40 V), avoiding bus-off states. |
| Industrial Sensor Signal Line Guarding | DC-DC Converter Input Stage Surge Suppression |
|
Use Scenario: Safeguarding analog outputs (4–20 mA, 0–10 V) of pressure/temperature sensors exposed to ESD and inductive kickback in factory automation. IC Role / Device Role / Timing Role: Low-leakage bidirectional TVS placed across sensor output and return, shunting fast transients before op-amp inputs. Use Value: Prevents sensor calibration drift or permanent front-end damage by limiting transient energy to <10 nJ at sub-100 ns rise times. |
Use Scenario: Front-end protection of 36 V input buck converters in telecom power systems subjected to lightning-induced surges on distribution lines. IC Role / Device Role / Timing Role: Primary surge clamp ahead of input filter and controller IC, diverting energy before it reaches MOSFETs and gate drivers. Use Value: Enables single-stage protection meeting IEC 61000-4-5 2 kV line-to-ground surge requirement without additional MOV or GDT staging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36CAHE3_A/H | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (110 °C/W), same VWM/VBR spec. | Suitable for space-constrained, lower-energy environments (e.g., portable instrumentation), not for automotive load dump. | Select when board area is limited and surge threat level is ≤400 W - verify thermal margin with reduced copper pad area. |
| SMCJ36AHE3_A/H | Unidirectional version; includes cathode band marking; identical VWM, VBR, VC, and PPPM but asymmetric conduction. | Required where DC bias polarity is fixed and reverse conduction must be blocked (e.g., +36 V supply rail with grounded return). | Choose only if system topology mandates unidirectional blocking - otherwise SMCJ36CAHE3_A/H provides superior flexibility for floating or AC-coupled nodes. |
Compared with SMAJ36CAHE3_A/H and SMCJ36AHE3_A/H, the SMCJ36CAHE3_A/H delivers optimal balance of high-energy handling (1500 W), automotive qualification, and bidirectional symmetry - making it the preferred choice for 36 V power domain protection where layout space permits the SMC footprint and surge threats exceed 400 W.
Availability
SMCJ36CAHE3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC-DC converter input stages requiring stable component supply with AEC-Q101 assurance and full traceability.
Supply support for SMCJ36CAHE3_A/H 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on reliability, precision, and application-specific performance.
The SMCJ series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure - engineered for robust clamping, low leakage, and AEC-Q101 compliance in harsh environments.
FAQ
What is the clamping voltage of SMCJ36CAHE3_A/H at its rated peak pulse current?
The SMCJ36CAHE3_A/H clamps to a maximum of 58.1 V at its rated peak pulse current of 25.8 A (10/1000 μs waveform). This value is measured under standardized test conditions with 8.0 mm × 8.0 mm copper pads per terminal and confirms the device's ability to limit transient overvoltage to a safe margin above its 36 V standoff rating - a key parameter for protecting downstream 40 V-rated ICs and MOSFETs in 36 V systems.
Is SMCJ36CAHE3_A/H suitable for automotive applications?
Yes, SMCJ36CAHE3_A/H is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix, indicating RoHS-compliance and stress-tested reliability for under-hood and chassis-mounted electronics. Its 1500 W surge rating, -55 °C to +150 °C operating range, and MSL Level 1 reflow compatibility make it appropriate for engine control modules, battery management systems, and ADAS power conditioning - provided layout follows Vishay's recommended pad dimensions and grounding practices.
How does the bidirectional design of SMCJ36CAHE3_A/H affect its circuit implementation?
The bidirectional design of SMCJ36CAHE3_A/H means it functions identically in both polarities - no cathode band marking is present, and either terminal may serve as anode or cathode depending on transient direction. This simplifies layout on floating lines (e.g., differential buses, isolated sensor outputs) and eliminates polarity-matching errors during assembly. Unlike unidirectional variants such as SMCJ36AHE3_A/H, the CA version avoids forward conduction issues in AC-coupled or reversibly biased rails - a critical advantage in CAN, LIN, and RS-485 power conditioning.
What is the maximum leakage current of SMCJ36CAHE3_A/H at its standoff voltage?
The maximum reverse leakage current (ID) of SMCJ36CAHE3_A/H is 1.0 μA at its standoff voltage (VWM) of 36 V and ambient temperature of 25 °C. This ultra-low leakage preserves power efficiency in always-on circuits such as vehicle wake-up monitors, IoT sensor nodes, and CAN bus standby receivers - where even microamp-level parasitic draw can impact battery life or cause false wake events over time.
Can SMCJ36CAHE3_A/H replace SMCJ36AHE3_A/H in an existing design?
SMCJ36CAHE3_A/H can replace SMCJ36AHE3_A/H only if the circuit requires bidirectional clamping - for example, on floating or AC-coupled lines where reverse polarity transients occur. However, it cannot substitute in unidirectionally biased rails where forward conduction must be blocked (e.g., +36 V supply with grounded return), because the CA version conducts in both directions. Always verify system polarity, grounding scheme, and transient directionality before substitution - no PCB changes are guaranteed, and functional equivalence depends entirely on topology.
SMCJ36CAHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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_A/H FAQ
1.How can I place an order for SMCJ36CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36CAHE3_A/H 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_A/H reliable?
The price and inventory of SMCJ36CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ36CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ36CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36CAHE3_A/H?
SMCJ36CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36CAHE3_A/H 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_A/H?
For technical support, including SMCJ36CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36CAHE3_A/H requirements.
6.How does Aetrix verify that SMCJ36CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ36CAHE3_A/H 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_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ36CAHE3_A/H?
All SMCJ36CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36CAHE3_A/H, 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_A/H part is unused and in its original packaging.
Return procedure for SMCJ36CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ36CAHE3_A/H Tags
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