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Vishay General Semiconductor - Diodes Division SMCJ36C-E3/9AT
- Part No.:
- SMCJ36C-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36C-E3/9AT.pdf
- Description:
- TVS DIODE 36VWM 64.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,135
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Product details
Overview
SMCJ36C-E3/9AT from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection on signal and power lines. It features a 36 V stand-off voltage (VWM), 58.1 V maximum clamping voltage (VC) at 25.8 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the SMCJ36C-E3/9AT datasheet, SMCJ36C-E3/9AT pinout, SMCJ36C-E3/9AT application, or SMCJ36C-E3/9AT equivalent, key selection criteria include bi-directional clamping symmetry, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCJ36C-E3/9AT operates as a bi-directional avalanche diode, exhibiting symmetrical breakdown behavior in both polarities with minimum VBR of 40.0 V and maximum of 44.2 V at 1.0 mA test current. Its low incremental surge resistance enables stable clamping under fast transients, while glass-passivated junction ensures long-term reliability under repetitive surge stress.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, supporting operation from –55 °C to +150 °C junction temperature. The device meets UL 497B recognition (QVGQ2) and complies with JESD201 Class 1A whisker testing via its matte tin-plated leads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse working voltage before clamping initiates |
| VBR (min/max) | 40.0 V / 44.2 V at 1.0 mA - Ensures consistent bi-directional breakdown threshold across production lots |
| VC @ IPPM | 58.1 V at 25.8 A - Clamping voltage limits downstream IC stress during 10/1000 μs surges |
| PPPM | 1500 W - Peak transient energy absorption capability per single event |
| ID @ VWM | 1.0 μA - Ultra-low leakage preserves signal integrity in high-impedance circuits |
| TJ max. | +150 °C - Enables use in under-hood automotive and industrial environments |
| MSL Level | Level 1 (per J-STD-020) - Supports standard reflow without dry-pack requirements |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, low-profile case with molded UL 94 V-0 compound and unmarked body for bi-directional polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No polarity marking; terminals interchangeable - clamps positive and negative transients equally |
| Leads (matte tin) | Solder interface | Complies with J-STD-002 and JESD22-B102; supports lead-free reflow up to 260 °C peak |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance |
| Glass passivated junction | Prevents moisture ingress and metallization degradation under humid or high-bias stress conditions |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a) |
| 1500 W peak pulse power | Withstands 10/1000 μs surges up to 25.8 A without parametric shift or failure |
| UL 497B recognized (QVGQ2) | Approved for telecom and industrial signal line protection per safety standard for protectors |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus nodes and analog sensor inputs (e.g., pressure, temperature) from load-dump and inductive switching transients in engine control units. IC Role / Device Role / Timing Role: Bi-directional TVS placed directly at connector entry point to clamp ±100 V transients before reaching MCU or signal conditioner. Use Value: Maintains signal fidelity with <1.0 μA leakage at 36 V and clamps to ≤58.1 V, preventing latch-up or damage to 3.3 V/5 V interface ICs. | Use Scenario: Shielding PLC digital input channels and RS-485 transceivers against EFT bursts and lightning-induced surges in factory automation systems. IC Role / Device Role / Timing Role: Primary front-end transient suppressor on field-side traces, coordinated with gas discharge tubes or MOVs for staged protection. Use Value: 1500 W PPPM rating handles repeated 1 kV/500 A surges per IEC 61000-4-5, enabling >100,000 surge cycles without derating. |
| Telecom Line Protection | Consumer Power Adapter Input |
Use Scenario: Safeguarding Ethernet PHYs, DSL line drivers, and POTS interface ICs from induced surges on outdoor-facing copper lines. IC Role / Device Role / Timing Role: Secondary-level protector after primary GDT/MOV, providing precise clamping to limit stress on sensitive transceiver ESD structures. Use Value: Symmetrical VBR (40.0–44.2 V) ensures balanced response to differential-mode surges, preserving common-mode rejection ratio (CMRR). | Use Scenario: Overvoltage suppression on AC-DC adapter secondary-side outputs (e.g., 24 V DC rails) exposed to capacitor discharge or hot-plug events. IC Role / Device Role / Timing Role: Fast-response clamp between output rail and ground, activated within <1 ns to limit transient excursion below IC absolute maximum ratings. Use Value: 58.1 V VC at 25.8 A prevents overvoltage on downstream DC-DC controllers rated for 36 V input, avoiding brownout or shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36CA-E3/61T | Lower PPPM (400 W), smaller DO-214AC (SMA) package, higher RθJA (150 °C/W) | Suitable only for lower-energy transients (<500 W); limited thermal margin in enclosed enclosures | Select when board space is constrained and surge threat level is IEC 61000-4-2 contact discharge only |
| 1.5KE36CA | Through-hole DO-201AE package, same VWM/VC specs, but no AEC-Q101 qualification or MSL Level 1 rating | Not suitable for automotive SMT production or high-reliability industrial reflow processes | Choose for prototyping or legacy through-hole designs where RoHS-compliant lead finish is acceptable |
Compared with SMAJ36CA-E3/61T and 1.5KE36CA, the SMCJ36C-E3/9AT delivers 3.75× higher surge power handling, AEC-Q101 validation for automotive deployment, and MSL Level 1 compatibility - making it the preferred choice for volume SMT production in harsh-environment applications requiring sustained reliability.
Availability
SMCJ36C-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line safeguarding requiring stable component supply across multi-year production programs.
Supply support for SMCJ36C-E3/9AT 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power, surface-mount transient suppression in automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and repeatable clamping performance are mandatory.
FAQ
What does the "C" suffix indicate in SMCJ36C-E3/9AT?
The "C" in SMCJ36C-E3/9AT denotes bi-directional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike uni-directional variants (e.g., SMCJ36A), the SMCJ36C-E3/9AT has no polarity marking and clamps equally in either direction - critical for protecting AC-coupled or differential signal lines where polarity reversal may occur.
Is SMCJ36C-E3/9AT qualified for automotive applications?
Yes, the SMCJ36C-E3/9AT is AEC-Q101 qualified, having passed rigorous stress tests including temperature cycling, high-temperature reverse bias (HTRB), and surge endurance. This qualification confirms its suitability for under-hood and cabin-mounted automotive electronics such as body control modules, ADAS sensor interfaces, and infotainment power supplies - provided layout follows Vishay's recommended 8.0 mm × 8.0 mm copper pad design.
What is the maximum clamping voltage of SMCJ36C-E3/9AT and how is it measured?
The maximum clamping voltage (VC) of the SMCJ36C-E3/9AT is 58.1 V, measured at 25.8 A peak pulse current (IPPM) using a standardized 10/1000 μs double-exponential waveform. This value represents the upper limit of voltage seen by downstream circuitry during worst-case transient events and is guaranteed across the full operating temperature range (–55 °C to +150 °C) per Vishay Document Number 88394.
Does SMCJ36C-E3/9AT require special PCB layout considerations?
Yes - optimal performance requires mounting the SMCJ36C-E3/9AT on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal to achieve specified thermal and surge ratings. Reduced pad area degrades both peak pulse power dissipation and clamping consistency. Additionally, keep traces short and direct between the SMCJ36C-E3/9AT and protected node to minimize inductance that could elevate clamped voltage during fast transients.
How does the E3/9AT suffix affect packaging and compliance of SMCJ36C-E3/9AT?
The "E3" suffix indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting JESD201 Class 1A whisker resistance, while "9AT" specifies packaging in 13-inch plastic tape-and-reel format containing 3500 units. This configuration supports high-speed pick-and-place assembly and satisfies IPC/JEDEC standards for moisture sensitivity (MSL Level 1), eliminating bake requirements prior to reflow soldering.
SMCJ36C-E3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 64.3V
- Current - Peak Pulse (10/1000µs):
- 23.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ36C-E3/9AT FAQ
1.How can I place an order for SMCJ36C-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36C-E3/9AT 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 SMCJ36C-E3/9AT reliable?
The price and inventory of SMCJ36C-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ36C-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ36C-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36C-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36C-E3/9AT?
SMCJ36C-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36C-E3/9AT 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 SMCJ36C-E3/9AT?
For technical support, including SMCJ36C-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36C-E3/9AT requirements.
6.How does Aetrix verify that SMCJ36C-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ36C-E3/9AT 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 SMCJ36C-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ36C-E3/9AT?
All SMCJ36C-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36C-E3/9AT, 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 SMCJ36C-E3/9AT part is unused and in its original packaging.
Return procedure for SMCJ36C-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ36C-E3/9AT Tags
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