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Diodes Incorporated SMCJ36AQ-13-F
- Part No.:
- SMCJ36AQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36AQ-13-F.pdf
- Description:
- TVS DIODE 36VWM 58.1VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:7,674
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Product details
Overview
SMCJ36AQ-13-F from Diodes Incorporated is a unidirectional 1,500W automotive transient voltage suppressor (TVS) diode in SMC package, with 36V reverse standoff voltage (VRWM), 40.0V minimum breakdown voltage (VBR), and 58.1V maximum clamping voltage (VC) at 25.8A peak pulse current (IPP). It protects CAN, LIN, and power-line circuits in engine control units and body electronics against ISO7637-2 Pulse 1/2a/3a/3b transients and ISO10605 ESD events.
For engineers reviewing the SMCJ36AQ-13-F datasheet, SMCJ36AQ-13-F pinout, SMCJ36AQ-13-F application, or SMCJ36AQ-13-F equivalent, this device is selected for AEC-Q101-compliant surge protection where clamping voltage margin, 200A IFSM surge capability, and 150°C junction temperature operation are critical design constraints.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below VRWM = 36V, avalanches at VBR ≥ 40.0V (IT = 1.0mA), and limits transient energy by clamping to ≤58.1V during 10/1000μs surges up to 25.8A. Its glass-passivated die ensures stable leakage (<5.0μA at VRWM) and repeatable breakdown behavior across temperature.
Designed for automotive-grade reliability, it meets ISO7637-2 Pulse 1 (–100V), Pulse 2a (+50V), Pulse 3a (–150V), and Pulse 3b (+100V), and passes ISO10605 ESD testing at ±30kV (air/contact discharge) with C = 150pF / R = 330Ω. It is manufactured in IATF 16949-certified facilities and PPAP-capable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W - sustains single 10/1000μs transients without failure under defined thermal conditions |
| Reverse Standoff Voltage (VRWM) | 36V - maximum continuous DC or RMS operating voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 40.0V min @ 1.0mA - guaranteed avalanche initiation threshold for reliable clamping onset |
| Clamping Voltage (VC) | 58.1V max @ IPP = 25.8A - defines worst-case voltage seen by protected IC during surge event |
| Peak Forward Surge Current (IFSM) | 200A @ 8.3ms half-sine - supports robust handling of repetitive load dump or alternator spikes |
| Junction Temperature Range | –55°C to +150°C - enables deployment in under-hood ECUs and transmission control modules |
| AEC-Q101 Qualified | Yes - validated for automotive use with stress testing including HTGB, HTRB, and TCT |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating; cathode band denotes polarity; weight ≈ 0.21g; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-voltage rail; forms shunt path during reverse transient |
| Cathode | High-side input terminal | Connected to protected line (e.g., CAN_H, battery feed); carries full surge current into ground |
Key Features
| Feature | Design Value |
|---|---|
| 1,500W peak pulse power | Enables protection of 12V/24V systems against severe load dump and ISO7637-2 Pulse 1 (–100V) without derating |
| Glass-passivated die construction | Ensures stable VBR tolerance (±5%), low leakage drift over temperature, and long-term reliability in humid environments |
| AEC-Q101 qualification & PPAP capability | Meets automotive change control requirements; supports production release with full traceability and process validation |
| Lead-free, halogen-free, RoHS 3 compliant | Complies with EU Directive 2015/863/EU; <900ppm Br, <900ppm Cl, <1000ppm Sb; suitable for green manufacturing |
Applications
| Engine Control Unit (ECU) Power Input | CAN Bus Physical Layer Protection |
|---|---|
Use Scenario: 12V battery feed to microcontroller power supply in gasoline/diesel engine management systems. IC Role / Device Role / Timing Role: Shunt TVS placed between VBAT and GND upstream of DC-DC converter to clamp load dump transients. Use Value: Limits voltage to ≤58.1V during ISO7637-2 Pulse 1 (–100V), preventing damage to 40V-rated input capacitors and LDOs. |
Use Scenario: Bidirectional protection on CAN_H/CAN_L lines in vehicle network gateways and ADAS domain controllers. IC Role / Device Role / Timing Role: Unidirectional SMCJ36AQ-13-F used on CAN_H (with SMCJ36CQ-13-F on CAN_L) to suppress common-mode surges. Use Value: Maintains signal integrity by clamping fast-rising ESD pulses (ISO10605 ±30kV) within CAN transceiver common-mode range (±40V). |
| Body Control Module (BCM) LIN Bus | Automotive Lighting Driver Supply |
Use Scenario: 12V supply line to LIN transceiver in door module or seat control unit. IC Role / Device Role / Timing Role: TVS placed at LIN bus entry point to absorb coupled transients from adjacent power wiring. Use Value: Withstands ISO7637-2 Pulse 3a (–150V) and Pulse 3b (+100V) without degradation, preserving LIN communication up to 20kbps. |
Use Scenario: Input stage of LED headlamp driver powered directly from vehicle battery. IC Role / Device Role / Timing Role: Primary surge clamp on high-current 12V input before buck controller and gate drivers. Use Value: Handles 200A IFSM surge current from alternator ripple and jump-start events, avoiding latch-up in MOSFET drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC36-13-F (Diodes Inc.) | Same VRWM (36V) and VC (58.1V), but lower PPK = 600W and IFSM = 100A; SOD-123FL package | Limited to low-energy surges (e.g., infotainment USB ports); not suitable for load dump or alternator spikes | Select when board space is constrained and surge energy is <600W; verify thermal dissipation in SOD-123FL footprint |
| SMBJ36A (ON Semiconductor) | Same VRWM/VC/PPK specs, but SMB package (smaller thermal mass); AEC-Q101 qualified; slightly higher IR (10μA vs 5μA) | Lower thermal inertia reduces sustained surge capability; requires tighter layout for heat spreading | Prefer for cost-sensitive non-critical modules; confirm PCB copper area meets SMBJ36A's PM(AV) = 3.0W derating curve |
Compared with SAC36-13-F and SMBJ36A, SMCJ36AQ-13-F delivers superior thermal robustness (5.0W PM(AV) at TL=75°C), higher IFSM margin (200A), and proven performance in high-energy automotive transients-making it the preferred choice for safety-critical power inputs and communication buses.
Availability
SMCJ36AQ-13-F is available at Aetrix Electronics and suitable for engine control units, CAN/LIN bus interfaces, and automotive lighting systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SMCJ36AQ-13-F 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
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal devices, with design, manufacturing, and test facilities certified to IATF 16949 and ISO 9001 standards.
This device belongs to Diodes' AEC-Q101-qualified SMCJ automotive TVS family, engineered specifically for ISO7637-2 and ISO10605 compliance in harsh-temperature vehicle subsystems.
FAQ
What is the difference between SMCJ36AQ-13-F and SMCJ36CQ-13-F?
The "Q" suffix indicates AEC-Q101 qualification and automotive PPAP capability; "A" denotes unidirectional configuration, while "C" indicates bidirectional. SMCJ36AQ-13-F has a cathode band and clamps only reverse transients on the anode-to-cathode path; SMCJ36CQ-13-F lacks polarity marking and clamps both polarities, making it suitable for differential lines like CAN_H/CAN_L pairs.
Can SMCJ36AQ-13-F be used in 24V commercial vehicle systems?
Yes-its 36V VRWM provides adequate margin above nominal 24V systems (typically 20–28V), and its 58.1V clamping voltage stays well below the 60V absolute maximum rating of most 24V-rated power management ICs. It has been validated for ISO7637-2 Pulse 1 (–100V) and Pulse 2a (+50V), which cover heavy-duty truck electrical environments.
What is the thermal resistance (RθJA) of SMCJ36AQ-13-F in standard SMC layout?
Per Diodes' DS40741 Rev. 8, the typical junction-to-ambient thermal resistance is 60°C/W with 1-inch² 2-oz copper pad on FR-4 PCB. This value assumes the recommended SMC pad layout (X1 = 9.40mm, Y = 3.30mm, C = 6.90mm) and natural convection cooling; forced airflow or internal layer copper improves thermal performance.
Does SMCJ36AQ-13-F require derating at elevated ambient temperatures?
Yes-its peak pulse power must be linearly derated above +25°C ambient, following the curve in Figure 1 of DS40741: at +85°C, PPK is reduced to ~85% (1275W); at +125°C, it drops to ~55% (825W). Steady-state power dissipation (PM(AV) = 5.0W) also derates per Figure 6, reaching 2.5W at TL = +125°C.
SMCJ36AQ-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AB, SMC
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- SMC
SMCJ36AQ-13-F FAQ
1.How can I place an order for SMCJ36AQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36AQ-13-F 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 SMCJ36AQ-13-F reliable?
The price and inventory of SMCJ36AQ-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ36AQ-13-F is usually 5 days.
3.What payment methods are accepted for SMCJ36AQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36AQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36AQ-13-F?
SMCJ36AQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36AQ-13-F 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 SMCJ36AQ-13-F?
For technical support, including SMCJ36AQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36AQ-13-F requirements.
6.How does Aetrix verify that SMCJ36AQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMCJ36AQ-13-F 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 SMCJ36AQ-13-F meets industry standards.
7.What is the process for return or replacement of SMCJ36AQ-13-F?
All SMCJ36AQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36AQ-13-F, 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 SMCJ36AQ-13-F part is unused and in its original packaging.
Return procedure for SMCJ36AQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ36AQ-13-F Tags
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