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Diodes Incorporated SMCJ12CAQ-13-F
- Part No.:
- SMCJ12CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ12CAQ-13-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,300
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Product details
Overview
SMCJ12CAQ-13-F from Diodes Incorporated is a bidirectional 1,500W automotive transient voltage suppressor (TVS) diode in SMC package, with 12V reverse standoff voltage (VRWM), 19.9V max clamping voltage at 75.3A peak pulse current, and AEC-Q101 qualification for ISO7637-2 Pulse 1/2a/3a/3b and ISO10605 ESD protection in vehicle power-line and signal-line circuits.
For engineers reviewing the SMCJ12CAQ-13-F datasheet, SMCJ12CAQ-13-F pinout, SMCJ12CAQ-13-F application, or SMCJ12CAQ-13-F equivalent, key selection criteria include clamping voltage margin vs. protected IC VCC, peak surge current capability under ISO7637-2 Pulse 1 (–100V), bidirectional polarity for AC-coupled lines, and IATF 16949 manufacturing traceability.
Technical Context
This TVS operates as a voltage-clamped shunt protector: during transients exceeding 12V VRWM, it avalanches to clamp line voltage at ≤19.9V within <1 ns response time, diverting up to 75.3A (10/1000μs waveform) away from downstream circuitry. Its glass-passivated die ensures stable breakdown characteristics across –55°C to +150°C junction temperature.
Designed specifically for automotive environments, it meets stringent immunity requirements - including –100V ISO7637-2 Pulse 1 (inductive load dump), +50V Pulse 2a (relay switch-off), and ±30kV contact/air discharge per ISO10605 - while maintaining <5μA leakage at VRWM and RoHS-compliant, halogen-free construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W - sustains single 10/1000μs surges without failure under defined thermal conditions |
| Reverse Standoff Voltage (VRWM) | 12.0V - maximum continuous DC or RMS voltage before significant leakage begins |
| Max Clamping Voltage (VC) | 19.9V @ IPP = 75.3A - upper voltage limit imposed on protected circuit during worst-case surge |
| Breakdown Voltage (VBR) | 13.3–14.7V @ IT = 1.0mA - guaranteed avalanche initiation range for reliable triggering |
| Leakage Current (IR) | ≤5.0μA @ VRWM - negligible standby power loss and minimal impact on high-impedance sensing nodes |
| Operating Temperature | –55°C to +150°C - supports under-hood and powertrain module deployment without derating |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating, cathode band omitted (bidirectional device), 0.21g mass, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path | No polarity - connects across line-to-line or line-to-ground in AC or floating DC systems |
| Case / Body | Thermal conduction path | Primary heat dissipation route; requires adequate copper pour for PM(AV) = 5.0W at TL = +75°C |
Key Features
| Feature | Design Value |
|---|---|
| 1,500W peak pulse rating | Enables robust protection against severe load-dump events (ISO7637-2 Pulse 1) without thermal runaway |
| AEC-Q101 qualified & PPAP capable | Validated reliability for automotive production use, including temperature cycling, HTRB, and surge lifetime testing |
| Glass-passivated junction | Ensures stable VBR and low IR over 15-year vehicle service life, even under humidity and thermal stress |
| Bidirectional configuration | Protects AC-coupled data lines (e.g., LIN, CAN stubs) and dual-polarity power rails without polarity concerns |
Applications
| Infotainment Power Rail Protection | Body Control Module (BCM) Input Protection |
|---|---|
Use Scenario: 12V supply input to head unit MCU and audio codec exposed to battery transients during engine cranking and alternator load dump. IC Role / Device Role: Shunt TVS placed between VBAT and GND, clamping surges before LDO input. Use Value: Limits voltage to ≤19.9V during –100V ISO7637-2 Pulse 1, preventing latch-up or oxide damage in 3.3V/5V logic. | Use Scenario: LIN bus physical layer input subjected to ESD events and coupled noise from adjacent solenoid drivers. IC Role / Device Role: Bidirectional TVS across LIN+ and LIN– lines, referenced to local ground. Use Value: Clamps ±30kV ISO10605 discharges symmetrically, preserving signal integrity without polarity biasing. |
| ADAS Camera Power Line Protection | Electric Power Steering (EPS) Sensor Interface |
Use Scenario: 5V camera module power rail connected to ADAS domain controller via long harnesses susceptible to inductive switching noise. IC Role / Device Role: TVS mounted at camera connector, shunting transients induced by nearby motor drivers. Use Value: Fast <1ns response and 19.9V clamping prevent pixel corruption or reset during 10/1000μs pulses up to 75.3A. | Use Scenario: Analog torque sensor output (0–5V ratiometric) routed through chassis-integrated harnesses near EPS motor windings. IC Role / Device Role: Bidirectional TVS across differential sensor pair (e.g., IN+ and IN–), guarding against common-mode surges. Use Value: Maintains sub-1% measurement accuracy by limiting transient-induced offset shift to <200mV during ISO7637-2 Pulse 3b (+100V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC12-13-F | Same VRWM (12V), lower PPK = 600W, higher VC = 23.0V @ 26.1A | Limited to lower-energy transients (e.g., ISO7637-2 Pulse 3a only); unsuitable for Pulse 1 load dump | Select when cost sensitivity outweighs surge severity; verify clamping margin against protected IC absolute max ratings. |
| TPSMAJ12CA | Same VRWM and PPK, but SMA package (smaller footprint, lower thermal mass), VC = 19.7V @ 76.1A | Reduced steady-state power handling (PM(AV) = 1.0W vs. 5.0W); requires tighter layout thermal management | Prefer for space-constrained modules where surge duty cycle is infrequent and ambient temperature remains <60°C. |
Compared with SAC12-13-F and TPSMAJ12CA, SMCJ12CAQ-13-F delivers superior thermal robustness (5.0W PM(AV)), higher surge current capacity (75.3A), and full ISO7637-2 Pulse 1 compliance - making it the preferred choice for front-end power rail protection in demanding automotive ECUs.
Availability
SMCJ12CAQ-13-F is available at Aetrix Electronics and suitable for automotive infotainment systems, body control modules, and ADAS camera power supplies requiring stable component supply with full AEC-Q101 traceability and IATF 16949 manufacturing assurance.
Supply support for SMCJ12CAQ-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 manufacturer specializing in discrete, analog, and mixed-signal solutions, with design and manufacturing facilities certified to IATF 16949 and AEC-Q101 test standards.
The SMCJ series is part of Diodes' automotive-grade TVS portfolio, engineered specifically to meet ISO7637-2 and ISO10605 immunity requirements for power-line and data-line protection in passenger vehicles and commercial transport systems.
FAQ
What does the "C" in SMCJ12CAQ-13-F signify?
The "C" suffix denotes a bidirectional configuration, meaning the device provides symmetrical clamping for both positive and negative transients - essential for protecting AC-coupled lines like LIN or differential sensor interfaces without polarity constraints.
Is SMCJ12CAQ-13-F compliant with lead-free soldering processes?
Yes - it features matte tin-plated terminals, qualified to MIL-STD-202 Method 208, and supports standard reflow profiles including JEDEC J-STD-020, with moisture sensitivity level 1 (unlimited floor life at ≤30°C/60% RH).
How does its clamping performance compare to unidirectional variants?
At identical VRWM, bidirectional SMCJ12CAQ-13-F has the same 19.9V clamping voltage as unidirectional SMCJ12AQ-13-F under positive surges, but also clamps negative transients to the same level - critical for balanced protection in floating or AC-biased systems.
Can this TVS be used in non-automotive industrial applications?
Yes - its –55°C to +150°C operating range, 1500W surge rating, and robust construction make it suitable for industrial motor drives and telecom power supplies; however, AEC-Q101 qualification and PPAP documentation are specific to automotive program requirements.
SMCJ12CAQ-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 12V
- Voltage - Breakdown (Min):
- 13.3V
- Voltage - Clamping (Max) @ Ipp:
- 19.9V
- Current - Peak Pulse (10/1000µs):
- 75.3A
- 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
SMCJ12CAQ-13-F FAQ
1.How can I place an order for SMCJ12CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ12CAQ-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 SMCJ12CAQ-13-F reliable?
The price and inventory of SMCJ12CAQ-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 SMCJ12CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMCJ12CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ12CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ12CAQ-13-F?
SMCJ12CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ12CAQ-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 SMCJ12CAQ-13-F?
For technical support, including SMCJ12CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ12CAQ-13-F requirements.
6.How does Aetrix verify that SMCJ12CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMCJ12CAQ-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 SMCJ12CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMCJ12CAQ-13-F?
All SMCJ12CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ12CAQ-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 SMCJ12CAQ-13-F part is unused and in its original packaging.
Return procedure for SMCJ12CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ12CAQ-13-F Tags
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ESD9B5.0ST5G
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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