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Diodes Incorporated SMCJ75CAQ-13-F
- Part No.:
- SMCJ75CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ75CAQ-13-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,521
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Product details
Overview
SMCJ75CAQ-13-F from Diodes Incorporated is a bidirectional 1,500W automotive transient voltage suppressor (TVS) in SMC package, with 75V reverse standoff voltage (VRWM), 121V max clamping voltage (VC) at 12.4A peak pulse current (IPP), and AEC-Q101 qualification for under-hood power line protection against ISO7637-2 Pulse 1/2a/3a/3b and ISO10605 ESD events.
For engineers reviewing the SMCJ75CAQ-13-F datasheet, SMCJ75CAQ-13-F pinout, SMCJ75CAQ-13-F application, or SMCJ75CAQ-13-F equivalent, key selection criteria include clamping performance under 10/1000μs surge, bidirectional polarity for AC-coupled lines, AEC-Q101 compliance, IATF 16949 manufacturing traceability, and RoHS/halogen-free "Green" status per Diodes' definitions.
Technical Context
This bidirectional TVS diode operates symmetrically across both polarities, enabling protection of differential or AC signal/power lines without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<5µA at VRWM) over -55°C to +150°C operating range.
The device responds within <1.0ps to transients and clamps energy per the standardized 10×1000μs waveform, delivering 1,500W peak pulse power dissipation while maintaining 121V VC at IPP = 12.4A - critical for safeguarding CAN, LIN, and sensor supply rails in automotive ECUs subject to load dump and coupling noise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 75V - maximum continuous reverse operating voltage before clamping begins; sets threshold for ISO7637-2 Pulse 3b (+100V) margin. |
| VBR (min/max) | 83.3V / 92.1V @ IT = 1.0mA - verified breakdown window ensures consistent turn-on across production lots. |
| VC @ IPP | 121V @ 12.4A - clamping voltage during 10/1000μs surge defines worst-case stress on downstream ICs. |
| PPK | 1500W - peak pulse power rating determines survivability against high-energy transients like load dump. |
| IR @ VRWM | ≤5µA - ultra-low leakage preserves battery drain budget in always-on automotive modules. |
| TJ Range | -55°C to +150°C - extended junction temperature supports placement near power converters or engine compartments. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating, cathode band omitted due to bidirectional construction, 0.21g weight, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | No polarity marking; terminals interchangeable - enables single-component protection of AC-coupled lines like CAN H/L or LIN bus. |
| Case (exposed pad) | Thermal conduction path | Integral heat-sinking surface; requires PCB copper pour for PM(AV) = 5W derating above TL = +75°C. |
Key Features
| Feature | Design Value |
|---|---|
| 1,500W peak pulse power | Enables single-device suppression of ISO7637-2 Pulse 1 (-100V) and Pulse 3a (-150V) without cascading protectors. |
| AEC-Q101 qualified & PPAP capable | Validated reliability for automotive safety-critical systems; supports full production change control documentation. |
| Glass-passivated die | Eliminates passivation layer defects that cause premature failure under repeated surge stress. |
| RoHS 3 & halogen/antimony-free | Meets EU Directive 2015/863/EU with Br+Cl <1500ppm and Sb <1000ppm - required for Tier 1 OEM sourcing. |
Applications
| CAN Bus Protection | Automotive Sensor Power Rail |
|---|---|
Use Scenario: Protecting CAN H/L differential pair in body control module against coupled transients from adjacent solenoid switching. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to limit common-mode surge to <121V. Use Value: Prevents CAN transceiver latch-up or damage during ISO7637-2 Pulse 3a (-150V) events without adding series impedance. | Use Scenario: Safeguarding 5V/12V supply to pressure, temperature, and position sensors in engine bay environments. IC Role / Device Role / Timing Role: Primary overvoltage clamp on VCC input, coordinated with upstream fuse and downstream LDO. Use Value: Maintains sensor functionality during load dump (Pulse 1, -100V) by clamping within 1.0ps and dissipating 1500W peak energy. |
| LIN Bus Interface | Infotainment System Power Input |
Use Scenario: Securing LIN slave node (e.g., door module actuator) against ground bounce and alternator ripple-induced spikes. IC Role / Device Role / Timing Role: Low-leakage (≤5µA) bidirectional TVS placed between LIN bus and local regulator input. Use Value: Ensures reliable communication during ISO7637-2 Pulse 2a (+50V) while minimizing standby current impact. | Use Scenario: Front-end surge protection for 12V input to head unit power management ICs exposed to vehicle battery fluctuations. IC Role / Device Role / Timing Role: First-line defense against ISO10605 contact discharge (30kV) and Pulse 3b (+100V) on main power rail. Use Value: Eliminates need for secondary TVS stages by sustaining 12.4A IPP without degradation after repeated surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC75-13-F | Same VRWM (75V), lower PPK (600W), higher VC (130V @ 10A) | Not suitable for ISO7637-2 Pulse 1 (-100V); limited to lower-energy ESD-only zones | Select only where 1500W surge immunity is not required and board space allows larger footprint. |
| TPSMA75CA | Same VRWM (75V), identical PPK (1500W), but non-AEC-Q101, no PPAP support | Restricted to non-automotive industrial use; lacks IATF 16949 traceability and change control | Acceptable for cost-sensitive non-automotive designs where AEC-Q101 is not mandated. |
Compared with SAC75-13-F and TPSMA75CA, SMCJ75CAQ-13-F uniquely delivers AEC-Q101 qualification, 121V clamping at 12.4A, and full PPAP capability - making it the only option qualified for front-end power rail protection in production automotive ECUs.
Availability
SMCJ75CAQ-13-F is available at Aetrix Electronics and suitable for automotive electronic control units, infotainment system power inputs, and CAN/LIN bus interface circuits requiring stable component supply with full automotive-grade traceability.
Supply support for SMCJ75CAQ-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 solutions, with design, manufacturing, and test facilities certified to IATF 16949 and ISO 9001 standards.
The SMCJ(AQ) series is part of Diodes' automotive-grade TVS portfolio, engineered specifically for ISO7637-2 and ISO10605 compliance in harsh-temperature vehicle environments - targeting ECU, ADAS, and body electronics protection.
FAQ
What does the 'C' suffix in SMCJ75CAQ-13-F indicate?
The 'C' denotes bidirectional configuration: the device clamps symmetrically for both positive and negative transients, eliminating polarity concerns during layout. This differs from unidirectional variants (e.g., SMCJ75AQ-13-F) which require correct anode/cathode orientation and only protect one polarity.
Is SMCJ75CAQ-13-F compatible with lead-free reflow soldering processes?
Yes - it features matte tin lead-free plating, qualified per MIL-STD-202 Method 208, and rated for standard Pb-free reflow profiles (peak 260°C). The SMC package's thermal mass and UL 94V-0 molding compound ensure robustness through multiple reflow cycles without delamination or parameter shift.
How does the 121V clamping voltage affect downstream circuit design?
The 121V VC at 12.4A defines the maximum voltage seen by protected components during a 10/1000μs surge. Designers must ensure all downstream ICs (e.g., CAN transceivers, regulators) have absolute maximum ratings exceeding 121V, and verify that PCB trace inductance does not cause overshoot beyond this value during fast-rising transients.
Does SMCJ75CAQ-13-F require derating at elevated ambient temperatures?
Yes - its 1500W peak pulse power is specified at TA = +25°C. Derating follows Fig. 1 in DS40741: at +85°C ambient, peak power drops to ~85% (1275W); at +125°C, it falls to ~50% (750W). Steady-state power (PM(AV) = 5W) also derates linearly above TL = +75°C per Fig. 6.
SMCJ75CAQ-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AB, SMC
- Series:
- SMCJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 75V
- Voltage - Breakdown (Min):
- 83.3V
- Voltage - Clamping (Max) @ Ipp:
- 121V
- Current - Peak Pulse (10/1000µs):
- 12.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
SMCJ75CAQ-13-F FAQ
1.How can I place an order for SMCJ75CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ75CAQ-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 SMCJ75CAQ-13-F reliable?
The price and inventory of SMCJ75CAQ-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 SMCJ75CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMCJ75CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ75CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ75CAQ-13-F?
SMCJ75CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ75CAQ-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 SMCJ75CAQ-13-F?
For technical support, including SMCJ75CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ75CAQ-13-F requirements.
6.How does Aetrix verify that SMCJ75CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMCJ75CAQ-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 SMCJ75CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMCJ75CAQ-13-F?
All SMCJ75CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ75CAQ-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 SMCJ75CAQ-13-F part is unused and in its original packaging.
Return procedure for SMCJ75CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ75CAQ-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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