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Vishay General Semiconductor - Diodes Division SMCJ36CAHE3_A/I
- Part No.:
- SMCJ36CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36CAHE3_A/I.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMCJ36CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. 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 AEC-Q101 qualified and used in automotive power line and sensor interface protection.
For engineers reviewing the SMCJ36CAHE3_A/I datasheet, SMCJ36CAHE3_A/I pinout, SMCJ36CAHE3_A/I application, or SMCJ36CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, 1500 W surge rating, AEC-Q101 qualification, low clamping voltage (VC ≤ 58.1 V), and compatibility with automated SMT assembly on standard SMC footprints.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection against positive and negative polarity transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while the low incremental surge resistance supports fast energy dissipation during ESD or lightning-induced surges.
The device is rated for continuous operation from –55 °C to +150 °C junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its thermal resistance (RθJA = 75 °C/W) and RθJL = 15 °C/W enable effective heat transfer to PCB copper pads, especially when mounted on 8.0 mm × 8.0 mm pads per specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum reverse working voltage before clamping begins; defines safe operating range for continuous DC bias. |
| VBR min/max | 40.0 V / 44.2 V at IT = 1 mA - Confirmed breakdown threshold window; ensures predictable turn-on under transient stress. |
| VC @ IPPM | ≤58.1 V at 25.8 A (10/1000 μs) - Clamping voltage limits downstream IC stress; critical for protecting 3.3 V/5 V logic interfaces. |
| PPPM | 1500 W - Peak pulse power handling capacity; determines survivability against ISO 7637-2 Pulse 1/2/5a/b or IEC 61000-4-5 surges. |
| ID @ VWM | ≤1.0 μA - Reverse leakage current at rated standoff; ensures minimal standby power loss and signal integrity in high-impedance lines. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments and industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, TC, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional - no polarity marking; symmetrical two-terminal construction with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no functional distinction required in layout. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; device functions identically regardless of orientation on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., CAN bus, RS-485) without polarity concerns. |
| 1500 W peak pulse rating | Withstands high-energy transients per ISO 7637-2 and IEC 61000-4-5 Level 4 without degradation, reducing need for cascaded protection. |
| AEC-Q101 qualification | Validates long-term reliability in automotive applications including engine control units, body controllers, and ADAS sensor interfaces. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during clamping, preserving margin for downstream 36 V-rated components like gate drivers or power management ICs. |
| MSL Level 1, 260 °C peak | Supports standard lead-free reflow profiles without moisture-related delamination risk, eliminating bake requirements pre-assembly. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients per ISO 7637-2. IC Role / Device Role / Timing Role: Primary clamping element placed between power rail and ground, responding within <1 ns to suppress >100 V spikes. Use Value: Limits rail voltage to ≤58.1 V during 1500 W surges, preventing damage to MCU power supplies and analog front-ends. |
Use Scenario: Shielding 4–20 mA current loop transmitters and analog sensor outputs from ESD and field-induced noise. IC Role / Device Role / Timing Role: Bidirectional shunt clamp across differential or single-ended signal pairs, absorbing ±8 kV contact ESD per IEC 61000-4-2. Use Value: Maintains signal integrity by clamping transients below 58.1 V while adding <1 pF capacitance, avoiding bandwidth degradation. |
| Telecom Line Interface Protection | Consumer Device USB/Power Port Protection |
|
Use Scenario: Safeguarding Ethernet PHYs and PoE injectors against lightning-induced surges on RJ45 ports. IC Role / Device Role / Timing Role: Secondary-level TVS on data pair lines, coordinated with primary gas discharge tube (GDT) for staged protection. Use Value: Provides fast-response clamping (sub-ns) after GDT fires, limiting residual voltage to protect PHY silicon with ≤58.1 V clamping. |
Use Scenario: Hardening USB-C power delivery inputs and auxiliary charging ports against user-handling ESD and adapter transients. IC Role / Device Role / Timing Role: Standalone bidirectional clamp across VBUS and ground, rated for repeated ±15 kV air/±8 kV contact ESD events. Use Value: Survives >1000 ESD strikes without parameter shift, ensuring long-term port reliability in smartphones and portable medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC36CA | Same VWM (36 V), lower PPPM (600 W), smaller SMA package (DO-214AC), non-AEC-Q101. | Suitable for cost-sensitive consumer electronics where 1500 W surge immunity is not required. | Select SAC36CA only if board space is constrained and surge threat level is limited to IEC 61000-4-2 ESD only. |
| SMCJ36CAHM3_A/I | Identical electrical specs and AEC-Q101 qualification; differs only in halogen-free RoHS compliance (HM3 vs HE3). | No functional difference; used where halogen-free material declaration is mandated by OEM or regional regulation. | Choose SMCJ36CAHM3_A/I when compliance with JEDEC J-STD-20 or IPC-1752 requires halogen-free bill-of-materials. |
Compared with SAC36CA, SMCJ36CAHE3_A/I delivers 2.5× higher surge power handling and automotive qualification; versus SMCJ36CAHM3_A/I, it offers identical protection performance with standard RoHS compliance-making HE3 optimal for general automotive and industrial designs without halogen restrictions.
Availability
SMCJ36CAHE3_A/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, telecom line protection, and consumer USB port hardening requiring stable component supply and AEC-Q101 assurance.
Supply support for SMCJ36CAHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMCJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where robustness against ISO 7637-2 and IEC 61000-4-5 threats is mandatory.
FAQ
What is the clamping voltage of SMCJ36CAHE3_A/I at its rated peak pulse current?
The SMCJ36CAHE3_A/I clamps to a maximum of 58.1 V when subjected to its rated peak pulse current of 25.8 A under the standard 10/1000 μs waveform. This value is measured at the device terminals and represents the upper voltage limit imposed on protected circuitry during surge events, directly supporting design margin calculations for downstream 36 V-rated components.
Is SMCJ36CAHE3_A/I suitable for automotive applications?
Yes, SMCJ36CAHE3_A/I is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood and chassis-mounted modules. Its –55 °C to +150 °C operating range, MSL Level 1 reflow compatibility, and validation against HTOL, temperature cycling, and ESD stress make it appropriate for engine control units, body electronics, and ADAS sensor interfaces where reliability is critical.
How does the bidirectional nature of SMCJ36CAHE3_A/I affect PCB layout?
The bidirectional construction of SMCJ36CAHE3_A/I eliminates polarity constraints: either terminal may connect to the protected line or ground without functional impact. This simplifies layout, avoids silkscreen marking errors, and enables reuse across AC-coupled or floating interfaces such as CAN FD, RS-485, or Ethernet differential pairs-no orientation-dependent routing is needed.
What is the maximum reverse leakage current for SMCJ36CAHE3_A/I at its standoff voltage?
At its 36 V standoff voltage (VWM), the SMCJ36CAHE3_A/I exhibits a maximum reverse leakage current (ID) of 1.0 μA at 25 °C. This low leakage preserves signal integrity in high-impedance sensor paths and minimizes quiescent power loss in always-on automotive modules, supporting compliance with stringent sleep-mode current budgets.
Does SMCJ36CAHE3_A/I require special PCB pad design for thermal performance?
Yes-optimal thermal performance for SMCJ36CAHE3_A/I requires mounting on minimum 8.0 mm × 8.0 mm copper pads per terminal, as specified in the Vishay datasheet. This pad area reduces thermal resistance (RθJA = 75 °C/W) and prevents junction overheating during repetitive surge events, especially important in automotive applications with elevated ambient temperatures.
SMCJ36CAHE3_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:
- -
- 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/I FAQ
1.How can I place an order for SMCJ36CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36CAHE3_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 SMCJ36CAHE3_A/I reliable?
The price and inventory of SMCJ36CAHE3_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 SMCJ36CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ36CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36CAHE3_A/I?
SMCJ36CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36CAHE3_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 SMCJ36CAHE3_A/I?
For technical support, including SMCJ36CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36CAHE3_A/I requirements.
6.How does Aetrix verify that SMCJ36CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ36CAHE3_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 SMCJ36CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ36CAHE3_A/I?
All SMCJ36CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36CAHE3_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 SMCJ36CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMCJ36CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ36CAHE3_A/I Tags
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