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Diodes Incorporated SMCJ7.5CAQ-13-F
- Part No.:
- SMCJ7.5CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ7.5CAQ-13-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,187
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Product details
Overview
SMCJ7.5CAQ-13-F from Diodes Incorporated is a bidirectional 1,500W automotive transient voltage suppressor (TVS) diode in SMC package, with 7.5V reverse standoff voltage, 12.9V max clamping voltage at 116.3A 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 SMCJ7.5CAQ-13-F datasheet, SMCJ7.5CAQ-13-F pinout, SMCJ7.5CAQ-13-F application, or SMCJ7.5CAQ-13-F equivalent, this part supports high-reliability automotive surge suppression where precise clamping, fast response (<1 ns), and IATF 16949-manufactured consistency are critical for CAN/LIN bus interfaces, body control modules, and ADAS sensor power rails.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping performance for positive and negative transients without polarity dependency. Its glass-passivated die ensures stable breakdown behavior under repeated surge stress, while the 10×1000 μs waveform compliance defines its energy-handling capability per ISO7637-2 Pulse 3b (±100V).
The device exhibits 100 µA max reverse leakage at VRWM = 7.5V and achieves 12.9V clamping at IPP = 116.3A - a 72% clamping ratio (VC/VRWM) indicating tight voltage control during surge events. Thermal derating follows a linear curve from 100% at +25°C to ~50% at +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W - sustains single 10×1000μs surges up to 116.3A without failure |
| Reverse Standoff Voltage (VRWM) | 7.5V - maximum continuous operating voltage before clamping initiates |
| Max Clamping Voltage (VC) | 12.9V @ 116.3A - limits downstream circuit voltage to safe level during ISO7637-2 Pulse 3b |
| Breakdown Voltage (VBR) | 8.33–9.21V @ 1.0mA - defines sharp, repeatable avalanche onset for predictable protection threshold |
| Leakage Current (IR) | 100µA max @ 7.5V - negligible standby power loss in always-on automotive systems |
| Operating Temp Range | −55°C to +150°C - supports engine bay and under-hood deployment without derating |
| AEC-Q101 Qualified | Yes - validated for automotive reliability including temperature cycling, HTRB, and ESD stress |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating, cathode band omitted (bidirectional configuration), 0.21g weight, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Identical bidirectional terminals enable placement without orientation check; clamps ±12.9V surges equally |
| Case (exposed pad) | Thermal conduction path | Integral copper slug dissipates 5W steady-state power; requires PCB copper pour for thermal management |
Key Features
| Feature | Design Value |
|---|---|
| 1,500W peak pulse power | Enables robust protection against ISO7637-2 Pulse 1 (−100V) and Pulse 3b (+100V) without derating |
| Glass-passivated junction | Ensures stable VBR over 1,000+ surge cycles and eliminates parameter drift in humid environments |
| AEC-Q101 qualification | Validates reliability for automotive production use, including PPAP documentation support |
| Lead-free, halogen-free "Green" construction | Meets RoHS 3 and automotive ELV Directive requirements without compromising surge lifetime |
Applications
| Infotainment Power Rail Protection | CAN Bus Transceiver Protection |
|---|---|
Use Scenario: 12V supply line feeding head unit MCU and display driver ICs exposed to load dump and jump-start transients. IC Role / Device Role: Bidirectional TVS placed upstream of DC/DC converter input to clamp ±100V pulses per ISO7637-2 Pulse 3b. Use Value: Limits rail voltage to ≤12.9V, preventing overvoltage damage to 16V-rated input capacitors and LDOs. | Use Scenario: CAN_H/CAN_L lines connecting ECU to gateway module, subject to ESD events per ISO10605 (±30kV contact discharge). IC Role / Device Role: Differential-mode TVS pair (one per line) suppressing common-mode surges while preserving signal integrity. Use Value: Clamps transients within 1ns, maintaining <10pF line capacitance to avoid CAN FD timing distortion. |
| Body Control Module (BCM) Input Protection | ADAS Camera Power Conditioning |
Use Scenario: Wake-up inputs and LIN bus pins on BCM exposed to battery disconnect/reconnect spikes and relay bounce. IC Role / Device Role: Low-leakage (100µA) bidirectional suppressor guarding 5V/3.3V logic-level inputs. Use Value: Prevents false wake-ups and latch-up by limiting transient overshoot to <13V while drawing negligible quiescent current. | Use Scenario: 5V power feed to 12MP camera module mounted near engine compartment, subject to thermal cycling and ignition noise. IC Role / Device Role: Primary surge protector on camera power input, coordinated with ceramic capacitor and ferrite bead. Use Value: Survives 200A 8.3ms half-sine surge (IFSM) without degradation, ensuring uninterrupted video stream during cranking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC7.5-13-F | Same SMC package, 7.5V VRWM, but lower 600W PPK and 65A IPP | Limited to low-energy transients (ISO10605 only); insufficient for ISO7637-2 Pulse 1/3b | Select when cost-sensitive designs tolerate reduced surge margin and operate below 85°C ambient |
| TPSMD7.5A | 1500W PPK, same VRWM, but unidirectional; requires dual-device layout for bidirectional coverage | Doubles board area and BOM count; adds polarity assembly risk | Choose only if existing design uses unidirectional TVS footprint and can accommodate two devices |
Compared with SAC7.5-13-F and TPSMD7.5A, SMCJ7.5CAQ-13-F delivers full 1500W bidirectional protection in a single SMC footprint, eliminating layout complexity and enabling direct replacement in ISO7637-2-compliant ECUs without redesign.
Availability
SMCJ7.5CAQ-13-F is available at Aetrix Electronics and suitable for automotive infotainment systems, CAN/LIN network nodes, and ADAS camera modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SMCJ7.5CAQ-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 with IATF 16949-certified facilities.
This device belongs to the SMCJ(AQ) automotive TVS family, engineered specifically for AEC-Q101 compliance and seamless integration into ISO7637-2/ISO10605-compliant vehicle electrical architectures.
FAQ
What is the clamping voltage of SMCJ7.5CAQ-13-F at its rated peak pulse current?
The maximum clamping voltage (VC) is 12.9V at 116.3A peak pulse current (IPP), measured using the standard 10×1000μs waveform per REA and ISO7637-2. This value is guaranteed across −55°C to +150°C junction temperature and defines the upper voltage limit imposed on protected circuits during surge events.
Is SMCJ7.5CAQ-13-F suitable for protecting CAN FD data lines?
Yes - its typical junction capacitance is <10pF at zero bias and 1MHz, and its sub-nanosecond response time preserves signal edge integrity. When placed with minimal trace length and proper grounding, it meets CAN FD timing budgets (≤5ns propagation delay impact) while suppressing ±30kV ESD per ISO10605.
How does the bidirectional configuration affect PCB layout versus unidirectional TVS diodes?
SMCJ7.5CAQ-13-F has no polarity marking (no cathode band), allowing rotation-independent placement. Unlike unidirectional parts requiring strict anode/cathode orientation, this simplifies automated assembly and eliminates orientation-related field failures - especially valuable in dense, multi-layer automotive PCBs with constrained routing space.
Does SMCJ7.5CAQ-13-F require derating for operation at 125°C ambient temperature?
Yes - per Figure 1 in DS40741 Rev. 8, peak pulse power must be derated to ~55% of 1500W (≈825W) at +125°C ambient. This corresponds to a maximum IPP of ~64A. Designers must verify that worst-case surge energy (e.g., ISO7637-2 Pulse 3b) remains within this derated envelope using the 10×1000μs waveform integral.
SMCJ7.5CAQ-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):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 116.3A
- 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
SMCJ7.5CAQ-13-F FAQ
1.How can I place an order for SMCJ7.5CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ7.5CAQ-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 SMCJ7.5CAQ-13-F reliable?
The price and inventory of SMCJ7.5CAQ-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 SMCJ7.5CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMCJ7.5CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ7.5CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ7.5CAQ-13-F?
SMCJ7.5CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ7.5CAQ-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 SMCJ7.5CAQ-13-F?
For technical support, including SMCJ7.5CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ7.5CAQ-13-F requirements.
6.How does Aetrix verify that SMCJ7.5CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMCJ7.5CAQ-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 SMCJ7.5CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMCJ7.5CAQ-13-F?
All SMCJ7.5CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ7.5CAQ-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 SMCJ7.5CAQ-13-F part is unused and in its original packaging.
Return procedure for SMCJ7.5CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ7.5CAQ-13-F Tags
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Diodes Incorporated
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Diodes Incorporated
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