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Vishay General Semiconductor - Diodes Division SMCJ36CAHM3_A/H
- Part No.:
- SMCJ36CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36CAHM3_A/H.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,383
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Product details
Overview
SMCJ36CAHM3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection. It features a 36 V standoff voltage (VWM), 40.0–44.2 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (PPPM), and clamps transients to ≤58.1 V at 25.8 A (10/1000 μs waveform). It is halogen-free, RoHS-compliant, and AEC-Q101 qualified for automotive-grade reliability.
For engineers reviewing the SMCJ36CAHM3_A/H datasheet, SMCJ36CAHM3_A/H pinout, SMCJ36CAHM3_A/H application, or SMCJ36CAHM3_A/H equivalent, key selection criteria include bidirectional clamping capability, 1500 W surge rating, -55 °C to +150 °C operating junction temperature, MSL Level 1 moisture sensitivity, and compatibility with automated SMT assembly on standard PCB copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal lines without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while the low incremental surge resistance supports fast clamping response under transient stress.
The device is rated for 1500 W peak pulse power per 10/1000 μs waveform when mounted on 8.0 mm × 8.0 mm copper pads per terminal, with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W - critical for thermal management in compact automotive and industrial PCB layouts.
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 - guaranteed breakdown range defining turn-on threshold |
| VC @ IPPM | ≤58.1 V at 25.8 A - clamped voltage during full-rated 1500 W surge, limiting downstream stress |
| PPPM | 1500 W - peak transient energy absorption capacity per 10/1000 μs waveform |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| MSL Level | Level 1 (per J-STD-020) - no floor life limitation; safe for standard reflow without dry pack |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic case with matte tin-plated leads; dimensions 7.11 mm × 6.22 mm × 2.62 mm (L × W × H); UL 94 V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; common terminal in bidirectional configuration | No polarity marking; symmetrical conduction enables AC line protection without orientation constraints |
| Cathode | Current exit point in forward bias; common terminal in bidirectional configuration | No band or marking - distinguishes it from unidirectional variants (e.g., SMCJ36A) which use cathode band |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of differential buses (e.g., CAN, RS-485) and AC signal paths without polarity-sensitive layout |
| 1500 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) when properly mounted |
| AEC-Q101 qualification | Validated for automotive powertrain, body control, and ADAS modules requiring long-term field reliability |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC JESD201 Class 2 whisker resistance for lead-free soldering |
| Low thermal resistance (RθJL = 15 °C/W) | Supports efficient heat transfer to PCB copper, reducing thermal derating in high-density layouts |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator transients up to 300 V. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed at input filter stage before DC/DC converter or LDO regulator. Use Value: Limits input voltage to ≤58.1 V during 1500 W surges, preventing damage to downstream PMICs and microcontrollers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC I/O modules. IC Role / Device Role / Timing Role: Bidirectional shunt protector on differential signal pairs exposed to EFT and surge coupling. Use Value: Clamps ±58.1 V transients without polarity reversal, preserving signal integrity in 4–20 mA or 0–10 V analog channels. |
| Telecom Line Card Surge Protection | Consumer USB-C Port ESD/Surge Guard |
Use Scenario: Front-end protection for Ethernet PHYs and PoE injectors subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS after gas discharge tube (GDT), handling residual energy not diverted by primary protection. Use Value: Responds in <1 ps to clamp induced transients to safe levels before IC-level damage occurs. | Use Scenario: Integrated overvoltage protection on USB-C receptacle VBUS and CC lines in portable devices. IC Role / Device Role / Timing Role: Bidirectional clamp for reversible plug insertion and hot-swap voltage spikes. Use Value: Withstands repeated 1500 W surges while maintaining <1.0 μA leakage at 36 V, minimizing standby power loss. |
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) | Suitable for space-constrained consumer boards where 1500 W rating is excessive | Select when board area is limited and surge threat level is IEC 61000-4-5 Level 2 or lower |
| SMCJ36CA-E3/57T | Same electrical specs and SMC package; differs only in packaging (tape-and-reel vs. A/H reel size) and halogen content (RoHS-only vs. halogen-free) | Identical circuit performance; used in non-automotive commercial designs without halogen-free requirement | Select when AEC-Q101 or halogen-free compliance is not required, and cost optimization is prioritized |
Compared with SMAJ36CAHE3_A/H and SMCJ36CA-E3/57T, the SMCJ36CAHM3_A/H delivers superior surge robustness and automotive qualification while maintaining identical footprint - making it optimal for high-reliability 12 V systems where thermal margin and long-term field validation are critical.
Availability
SMCJ36CAHM3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom line cards, and USB-C power delivery systems requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ36CAHM3_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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in automotive, industrial, and communications infrastructure where robustness against ISO 7637-2 and IEC 61000-4-5 threats is mandatory.
FAQ
What does the "CA" suffix indicate in SMCJ36CAHM3_A/H?
The "CA" suffix denotes a bidirectional configuration - meaning the SMCJ36CAHM3_A/H conducts and clamps symmetrically in both polarities, unlike unidirectional variants (e.g., SMCJ36A) that feature a cathode band and conduct only in reverse bias. This makes SMCJ36CAHM3_A/H ideal for protecting AC-coupled or differential signal lines such as CAN bus or RS-485 without polarity concerns.
Is SMCJ36CAHM3_A/H compatible with lead-free reflow processes?
Yes, SMCJ36CAHM3_A/H is fully compatible with lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability standards, and it is rated for a maximum peak reflow temperature of 260 °C per J-STD-020 MSL Level 1 - eliminating the need for dry packing or special handling prior to assembly.
How does the AEC-Q101 qualification impact the use of SMCJ36CAHM3_A/H in automotive designs?
The AEC-Q101 qualification confirms that SMCJ36CAHM3_A/H has passed accelerated stress tests including high-temperature operating life (HTOL), temperature cycling (TCT), and human-body-model ESD - validating its suitability for under-hood and cabin-mounted automotive electronics. This certification reduces design validation effort and supports PPAP compliance for Tier 1 suppliers using SMCJ36CAHM3_A/H in ECUs and ADAS modules.
What is the minimum recommended PCB pad layout for achieving the full 1500 W rating of SMCJ36CAHM3_A/H?
To achieve the full 1500 W peak pulse power rating, SMCJ36CAHM3_A/H must be mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in the Vishay datasheet. Smaller pads will thermally derate the device - for example, a 2.0 mm × 2.0 mm pad reduces PPPM to approximately 600 W due to increased thermal resistance and localized heating.
Can SMCJ36CAHM3_A/H replace SMCJ36A in an existing unidirectional design?
No - SMCJ36CAHM3_A/H is bidirectional and lacks a cathode band marking, so it cannot directly replace unidirectional SMCJ36A without circuit review. While both share identical VWM, VBR, and PPPM, the bidirectional nature may cause unintended conduction in DC-biased circuits. Replacement requires verifying that the protected node is either AC-coupled or truly symmetrical; otherwise, polarity mismatch risks malfunction or failure.
SMCJ36CAHM3_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:
- 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/H FAQ
1.How can I place an order for SMCJ36CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36CAHM3_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 SMCJ36CAHM3_A/H reliable?
The price and inventory of SMCJ36CAHM3_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 SMCJ36CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ36CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36CAHM3_A/H?
SMCJ36CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36CAHM3_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 SMCJ36CAHM3_A/H?
For technical support, including SMCJ36CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36CAHM3_A/H requirements.
6.How does Aetrix verify that SMCJ36CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ36CAHM3_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 SMCJ36CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ36CAHM3_A/H?
All SMCJ36CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36CAHM3_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 SMCJ36CAHM3_A/H part is unused and in its original packaging.
Return procedure for SMCJ36CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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