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Vishay General Semiconductor - Diodes Division SMCJ36CAHM3_A/I
- Part No.:
- SMCJ36CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36CAHM3_A/I.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,476
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Product details
Overview
SMCJ36CAHM3_A/I 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, 58.1 V maximum clamping voltage at 25.8 A peak pulse current, and 36 V standoff voltage - deployed for ESD and surge protection on automotive sensor signal lines, industrial I/O ports, and DC power rails.
For engineers reviewing the SMCJ36CAHM3_A/I datasheet, SMCJ36CAHM3_A/I pinout, SMCJ36CAHM3_A/I application, or SMCJ36CAHM3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, thermal resistance (RθJA = 75 °C/W), and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
This device operates as a voltage-clamping protector using an avalanche breakdown mechanism, with symmetrical bidirectional behavior enabling suppression of both positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at 36 V).
Designed for transient immunity per IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive load dump), it delivers fast response time (<1.0 ns), low incremental surge resistance, and meets MSL Level 1 reflow requirements (peak 260 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| Breakdown Voltage (VBR) | 40.0–44.2 V at 1 mA test current - Confirmed minimum/maximum threshold where avalanche conduction initiates reliably. |
| Clamping Voltage (VC) | 58.1 V at 25.8 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| Peak Pulse Power (PPPM) | 1500 W - Maximum transient energy absorption capability under standardized 10/1000 μs waveform; enables robust surge handling. |
| Operating Temperature | −55 °C to +150 °C - Full industrial and automotive junction temperature range; supports under-hood and factory-floor deployment. |
| Package | SMC (DO-214AB) - Surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal footprint; optimized for high-power dissipation and automated placement. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per AEC specification. |
Pinout & Package
SMCJ36CAHM3_A/I uses the SMC (DO-214AB) package: a surface-mount, bidirectional device with no polarity marking (no cathode band). Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (negative half-cycle) | Conducts during negative surges; forms symmetrical clamping path with cathode terminal. |
| Cathode | Transient current entry point (positive half-cycle) | Conducts during positive surges; paired with anode to enable full bidirectional protection without external polarity management. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints or external diode pairing. |
| AEC-Q101 qualification | Validates long-term reliability in automotive environments including engine control units, ADAS sensors, and body electronics. |
| Halogen-free & RoHS-compliant | Meets global environmental compliance mandates (IEC 61249-2-21) and supports lead-free reflow profiles up to 260 °C peak. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving protection margin. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking; simplifies manufacturing logistics and reduces handling risk. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector interface or IC input pins to shunt surge energy before reaching sensitive analog front-ends. Use Value: Maintains signal integrity under ISO 7637-2 pulses up to 100 V while holding clamped voltage ≤58.1 V - preventing latch-up or damage to 3.3 V/5 V microcontrollers. |
Use Scenario: Safeguarding digital input/output channels on programmable logic controllers exposed to inductive switching noise from solenoids and relays. IC Role / Device Role / Timing Role: Parallel-connected TVS across each I/O line to absorb repetitive 1 kV/40 A transients without degradation over >100,000 cycles. Use Value: Enables >1500 W peak pulse handling with <1.0 μA leakage at 36 V - preserving high-impedance input thresholds and minimizing false triggering. |
| DC Power Rail Protection | Consumer Device USB Port Protection |
|
Use Scenario: Clamping voltage spikes on 24 V or 48 V DC distribution rails in factory automation equipment subjected to motor commutation noise. IC Role / Device Role / Timing Role: Mounted at power entry point with 8.0 mm × 8.0 mm copper pads to maximize thermal dissipation during multi-millisecond surges. Use Value: Delivers RθJA = 75 °C/W and TJ(max) = 150 °C - sustaining repeated 1500 W pulses without thermal runaway or parameter drift. |
Use Scenario: Shielding USB 2.0 data lines and VBUS against ESD per IEC 61000-4-2 ±15 kV contact discharge in portable medical monitors and smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed adjacent to USB connector to suppress fast transients without signal distortion. Use Value: Achieves <1.0 ns response time and symmetrical clamping - ensuring data eye integrity while limiting VBUS overshoot to ≤58.1 V during ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36CAHE3_A/I | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (110 °C/W) | Suitable for lower-energy transients and space-constrained consumer PCBs; not rated for automotive under-hood use. | Select when board area is limited and surge threat level is ≤400 W - verify thermal margin with reduced copper pad area. |
| SMCJ36AHE3_A/I | Unidirectional version; same VWM, VBR, VC, and PPPM; includes cathode band marking | Requires polarity-aware layout; used where only positive-going transients dominate (e.g., regulated DC outputs). | Choose only if system ground reference is fixed and negative transients are absent - avoids unnecessary bidirectional overhead. |
Compared with SMCJ36CAHM3_A/I, SMAJ36CAHE3_A/I trades surge capacity and thermal robustness for compactness, while SMCJ36AHE3_A/I eliminates bidirectional capability to simplify layout - making SMCJ36CAHM3_A/I the optimal choice for automotive and industrial applications demanding full-spectrum transient immunity with AEC-Q101 assurance.
Availability
SMCJ36CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and DC power rail protection requiring stable component supply, long-lifecycle support, and traceable halogen-free sourcing.
Supply support for SMCJ36CAHM3_A/I 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 performance.
The SMCJ series targets high-energy transient suppression in harsh environments - engineered for automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated.
FAQ
What is the clamping voltage of SMCJ36CAHM3_A/I at its rated peak pulse current?
The SMCJ36CAHM3_A/I 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 is measured and guaranteed per Vishay's datasheet (Document Number: 88394, Rev. 09-Jan-2024), and defines the upper voltage limit imposed on protected circuits during surge events. It directly impacts system-level overvoltage tolerance design.
Is SMCJ36CAHM3_A/I qualified for automotive applications?
Yes, SMCJ36CAHM3_A/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3" (halogen-free, RoHS-compliant, and AEC-Q101 qualified). It undergoes stress testing per AEC-Q101 including temperature cycling, high-temperature operating life, and ESD robustness - making it suitable for engine control, ADAS, and body electronics where reliability is mission-critical.
What does the "CA" suffix mean in SMCJ36CAHM3_A/I?
The "CA" suffix in SMCJ36CAHM3_A/I denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive- and negative-polarity voltage spikes. Unlike unidirectional variants (e.g., SMCJ36A), SMCJ36CAHM3_A/I has no cathode marking and functions identically in either orientation - ideal for AC-coupled or floating signal lines where polarity is undefined.
What package type does SMCJ36CAHM3_A/I use, and what are its thermal characteristics?
SMCJ36CAHM3_A/I uses the SMC (DO-214AB) package, with recommended mounting on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. Its thermal resistance is RθJA = 75 °C/W (typical) and RθJL = 15 °C/W (typical), enabling effective heat dissipation during repetitive surge events - critical for sustained operation in industrial and automotive ambient temperatures up to +125 °C.
How does SMCJ36CAHM3_A/I differ from SMCJ36AHE3_A/I?
SMCJ36CAHM3_A/I is bidirectional and AEC-Q101/halogen-free qualified, whereas SMCJ36AHE3_A/I is unidirectional, commercial-grade (E3), and RoHS-compliant but not AEC-Q101 qualified. The "CA" vs. "A" suffix changes polarity behavior and application scope; "HM3" adds automotive reliability and environmental compliance - making SMCJ36CAHM3_A/I appropriate for safety-critical automotive designs where SMCJ36AHE3_A/I would not be approved.
SMCJ36CAHM3_A/I 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ36CAHM3_A/I FAQ
1.How can I place an order for SMCJ36CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36CAHM3_A/I 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 SMCJ36CAHM3_A/I reliable?
The price and inventory of SMCJ36CAHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ36CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ36CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36CAHM3_A/I?
SMCJ36CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36CAHM3_A/I 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 SMCJ36CAHM3_A/I?
For technical support, including SMCJ36CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36CAHM3_A/I requirements.
6.How does Aetrix verify that SMCJ36CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ36CAHM3_A/I 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 SMCJ36CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ36CAHM3_A/I?
All SMCJ36CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36CAHM3_A/I, 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 SMCJ36CAHM3_A/I part is unused and in its original packaging.
Return procedure for SMCJ36CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ36CAHM3_A/I Tags
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