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Diodes Incorporated SMCJ7.0CAQ-13-F
- Part No.:
- SMCJ7.0CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ7.0CAQ-13-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,214
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Product details
Overview
SMCJ7.0CAQ-13-F from Diodes Incorporated is a bidirectional 1500W automotive transient voltage suppressor (TVS) diode in SMC package, designed for ISO7637-2 pulse suppression and ISO10605 ESD protection on power and signal lines. It features 7.0V reverse standoff voltage, 12.0V max clamping voltage at 125A peak pulse current, and AEC-Q101 qualification for under-hood and body-control module applications.
For engineers reviewing the SMCJ7.0CAQ-13-F datasheet, SMCJ7.0CAQ-13-F pinout, SMCJ7.0CAQ-13-F application, or SMCJ7.0CAQ-13-F equivalent, key selection criteria include clamping voltage margin versus system rail, bidirectional surge handling for AC-coupled or floating buses, IATF 16949 manufacturing traceability, and compliance with ISO7637-2 Pulse 1/2a/3a/3b waveforms.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling protection of differential or ungrounded signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior under repeated surge stress, while the 10×1000μs waveform-rated clamping performance guarantees predictable voltage limiting during load-dump and inductive switching events.
The device's 200μA max reverse leakage at 7.0V VRWM supports low-power always-on circuits, and its -55°C to +150°C operating range meets automotive under-hood thermal requirements. Thermal derating follows a defined curve up to TL = +75°C, with 5.0W steady-state dissipation capability at that lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W - sustains single 10×1000μs transients per ISO7637-2 without degradation |
| Reverse Standoff Voltage (VRWM) | 7.0V - maximum continuous DC or RMS voltage before significant leakage |
| Breakdown Voltage (VBR) | 7.78–8.60V @ 10mA - tight tolerance ensures consistent turn-on across production lots |
| Max Clamping Voltage (VC) | 12.0V @ 125A IPP - limits downstream IC voltage to safe level during surge |
| Peak Pulse Current (IPP) | 125.0A - quantifies surge-handling capacity for Pulse 1 (−100V) and Pulse 3a (−150V) |
| Operating Temperature | −55°C to +150°C - validated for engine control units and transmission control modules |
| AEC-Q101 Qualified | Yes - qualified per stress test conditions for automotive discrete semiconductors |
Pinout & Package
Package: SMC (DO-214AB), surface-mount molded plastic housing with UL 94V-0 flammability rating, 0.21g mass, cathode band omitted due to bidirectional construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Surge current path | Identical conduction in both directions; no polarity dependency in layout |
| Case / Body | Thermal conduction path | Requires minimum 25 mm² copper pour for 5.0W steady-state dissipation at TL = +75°C |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional 1500W surge rating | Enables single-device protection of CAN FD, LIN, or sensor supply lines subject to ±150V transients |
| ISO10605-compliant ESD robustness | Withstands 30kV air/contact discharge without parameter shift or failure |
| Glass-passivated die construction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure |
| AEC-Q101 qualification & PPAP capability | Supports automotive Tier-1 BOM inclusion with full change control and lot traceability |
| Halogen- and antimony-free "Green" design | Meets automotive ELV Directive limits (<900ppm Br/Cl, <1000ppm Sb) for end-of-life recycling |
Applications
| Engine Control Unit (ECU) Power Input | CAN FD Bus Protection |
|---|---|
Use Scenario: 12V battery feed to microcontroller power rails exposed to load dump and alternator ripple. IC Role / Device Role: Primary overvoltage clamp upstream of LDOs and DC-DC converters. Use Value: Limits transient excursions to ≤12.0V, preventing latch-up or gate oxide damage in 3.3V/5V logic. |
Use Scenario: Bidirectional protection of CAN_H/CAN_L differential pair against coupled surges in chassis-grounded systems. IC Role / Device Role: Common-mode surge shunt placed across bus lines near connector entry point. Use Value: Maintains signal integrity by clamping common-mode spikes to <12.0V while preserving differential swing. |
| Body Control Module (BCM) Sensor Interface | Automotive Lighting Driver Supply |
Use Scenario: Protection of analog inputs (e.g., ambient light, rain sensor) connected to external harnesses. IC Role / Device Role: Low-leakage (≤200μA) standoff device guarding precision amplifier front-end. Use Value: Prevents input stage saturation during ISO7637-2 Pulse 3b (+100V) without degrading offset or gain accuracy. |
Use Scenario: 24V LED driver input subjected to inductive kickback from relay coils and motor loads. IC Role / Device Role: Fast-response (sub-nanosecond) clamp absorbing energy before MOSFET drain-source breakdown. Use Value: Extends driver IC lifetime by reducing repetitive avalanche stress during frequent switching cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC7.0-13-F | Same SMC package, 7.0V VRWM, but lower 600W peak power rating | Limited to non-load-dump scenarios (e.g., infotainment USB ports) | Select when cost sensitivity outweighs need for full ISO7637-2 Pulse 1 compliance |
| SMCJ7.0A-13-F | Unidirectional version with identical VRWM, VBR, VC, and IPP ratings | Requires correct polarity placement; unsuitable for floating or AC-coupled lines | Choose only where circuit ground reference is fixed and surge polarity is known |
Compared with SAC7.0-13-F and SMCJ7.0A-13-F, the SMCJ7.0CAQ-13-F uniquely delivers bidirectional 1500W surge immunity with AEC-Q101 validation-making it the sole option for safety-critical, polarity-agnostic automotive power and data lines requiring full ISO7637-2 coverage.
Availability
SMCJ7.0CAQ-13-F is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS camera power supplies requiring stable component supply across extended automotive product lifecycles.
Supply support for SMCJ7.0CAQ-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.
The SMCJ series targets automotive-grade transient suppression, engineered specifically to meet AEC-Q101 stress requirements and ISO7637-2/ISO10605 test protocols for vehicle electronic systems.
FAQ
What does the "C" suffix in SMCJ7.0CAQ-13-F indicate?
The "C" denotes bidirectional construction, meaning the device clamps symmetrically for both positive and negative voltage transients. Unlike unidirectional variants (e.g., SMCJ7.0AQ-13-F), it has no cathode marking and functions identically regardless of terminal orientation in the PCB layout.
Is SMCJ7.0CAQ-13-F compatible with lead-free reflow processes?
Yes-it features matte tin lead-free plating, qualified per J-STD-020 Level 1 moisture sensitivity, and withstands standard Pb-free reflow profiles (peak 260°C). The SMC package's thermal mass requires adequate preheat and soak time to avoid thermal shock during soldering.
How does its clamping voltage compare to competing 7V TVS diodes?
At 125A IPP, SMCJ7.0CAQ-13-F clamps to 12.0V-tighter than typical 13.5–14.5V for legacy 7V TVS devices. This 1.5V margin enables direct protection of 12V-system logic ICs without additional series impedance, reducing board space and BOM count.
Can this TVS replace older SMCJ7.0A parts in existing designs?
No-SMCJ7.0CAQ-13-F is bidirectional while SMCJ7.0A-13-F is unidirectional. Swapping requires verifying circuit polarity, grounding scheme, and surge directionality. Layout changes may be needed to accommodate missing cathode identification and revised transient response symmetry.
SMCJ7.0CAQ-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):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 125A
- 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
SMCJ7.0CAQ-13-F FAQ
1.How can I place an order for SMCJ7.0CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ7.0CAQ-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 SMCJ7.0CAQ-13-F reliable?
The price and inventory of SMCJ7.0CAQ-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 SMCJ7.0CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMCJ7.0CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ7.0CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ7.0CAQ-13-F?
SMCJ7.0CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ7.0CAQ-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 SMCJ7.0CAQ-13-F?
For technical support, including SMCJ7.0CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ7.0CAQ-13-F requirements.
6.How does Aetrix verify that SMCJ7.0CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMCJ7.0CAQ-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 SMCJ7.0CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMCJ7.0CAQ-13-F?
All SMCJ7.0CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ7.0CAQ-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 SMCJ7.0CAQ-13-F part is unused and in its original packaging.
Return procedure for SMCJ7.0CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ7.0CAQ-13-F Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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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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