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Diodes Incorporated SMCJ7.5AQ-13-F
- Part No.:
- SMCJ7.5AQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ7.5AQ-13-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:8,619
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Product details
Overview
SMCJ7.5AQ-13-F from Diodes Incorporated is a unidirectional 1,500W automotive transient voltage suppressor (TVS) diode in SMC package, with 7.5V reverse standoff voltage (VRWM), 12.9V max clamping voltage (VC) at 116.3A 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 SMCJ7.5AQ-13-F datasheet, SMCJ7.5AQ-13-F pinout, SMCJ7.5AQ-13-F application, or SMCJ7.5AQ-13-F equivalent, this part delivers verified clamping performance, automotive-grade reliability, and RoHS-compliant lead-free plating - critical for selecting surge protection in 12V battery rail, LIN bus interfaces, and body control module inputs.
Technical Context
This TVS diode operates as a unidirectional clamping device, triggered when reverse voltage exceeds 7.5V VRWM and fully clamping at ≤12.9V within nanoseconds to limit transient energy. Its glass-passivated die ensures stable breakdown behavior across -55°C to +150°C junction temperature range.
It meets ISO7637-2 Pulse 1 (-100V), Pulse 2a (+50V), Pulse 3a (-150V), and Pulse 3b (+100V), and withstands 30kV air/contact ESD per ISO10605 using 150pF/330Ω network - validated via 10×1000μs waveform testing per REA standard.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W - sustains single high-energy transients without failure, e.g., load dump or inductive kickback |
| Reverse Standoff Voltage (VRWM) | 7.5V - blocks normal 12V system operation while remaining inactive below threshold |
| Max Clamping Voltage (VC) | 12.9V @ IPP = 116.3A - limits downstream IC voltage to safe level during worst-case surge |
| Breakdown Voltage (VBR) | 8.33–9.21V @ IT = 1.0mA - defines precise turn-on window for predictable clamping onset |
| Leakage Current (IR) | 100µA max @ VRWM - minimizes standby power loss in always-on automotive circuits |
| Operating Temp Range | -55°C to +150°C - supports placement near engines, ECUs, and other high-temp zones |
Pinout & Package
Package: SMC (DO-214AB), surface-mount molded plastic housing with UL 94V-0 flammability rating, cathode band polarity indicator, and matte tin lead finish solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected circuit ground or low-side return path |
| Cathode | Current exit point during reverse clamping | Connected to protected line (e.g., 12V supply) - clamps to anode when overvoltage occurs |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use with PPAP capability and IATF 16949 manufacturing |
| Glass-passivated die | Ensures stable VBR tolerance and long-term reliability under thermal cycling |
| 1,500W peak pulse rating | Handles ISO7637-2 Pulse 1 (-100V) and Pulse 3a (-150V) without degradation |
| RoHS 3 & Halogen-free | Meets EU directives with <900ppm Br, <900ppm Cl, <1000ppm Sb - compliant for global vehicle programs |
Applications
| Engine Control Unit (ECU) Power Input | LIN Bus Transceiver Protection |
|---|---|
Use Scenario: Protects 12V supply rail of engine control units exposed to alternator load dump and cranking transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamps negative-going surges (Pulse 1) and positive spikes (Pulse 2a/3b) before they reach MCU power pins. Use Value: Limits voltage to ≤12.9V during 116A surge, preventing brownout or latch-up in ASIL-B microcontrollers. |
Use Scenario: Shields LIN transceiver I/O lines from ESD events and coupled noise on shared wiring harnesses. IC Role / Device Role / Timing Role: Fast-response clamping element placed between LIN bus and transceiver input, referenced to local ground. Use Value: Withstands 30kV contact discharge (ISO10605) while maintaining signal integrity due to low capacitance (<100pF). |
| Body Control Module (BCM) Door Lock Circuit | Automotive Lighting Driver Supply |
Use Scenario: Guards solenoid driver outputs in BCMs subjected to inductive flyback from door lock actuators. IC Role / Device Role / Timing Role: Placed across relay coil or MOSFET drain-source to absorb stored energy during turn-off. Use Value: Dissipates 1500W peak energy in <100ns, eliminating need for snubber RC networks and reducing PCB area. |
Use Scenario: Safeguards LED driver IC supply input against battery reversal and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS connected between 12V rail and ground, upstream of DC-DC converter input. Use Value: Blocks reverse polarity up to -100V (ISO7637-2 Pulse 1) while clamping forward surges to 12.9V - enabling single-device dual-protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC7.5 | Same VRWM (7.5V), lower PPK (600W), SOD-123FL package | Not suitable for ISO7637-2 Pulse 1; limited to low-energy ESD-only zones | Select only for space-constrained non-critical nodes where 1500W rating is unnecessary |
| SMCJ7.5A | Identical electrical specs but lacks AEC-Q101 qualification and automotive change control | Not PPAP-capable; unsuitable for production automotive BOMs requiring traceability | Use only in non-automotive industrial prototypes or cost-sensitive non-qualified designs |
Compared with SAC7.5 and SMCJ7.5A, the SMCJ7.5AQ-13-F uniquely combines full ISO7637-2 compliance, AEC-Q101 validation, and 1500W clamping in a single automotive-qualified component - eliminating qualification overhead and ensuring supply chain continuity for Tier 1 programs.
Availability
SMCJ7.5AQ-13-F is available at Aetrix Electronics and suitable for engine control units, LIN bus interfaces, and body control modules requiring stable component supply with full automotive qualification and traceable sourcing.
Supply support for SMCJ7.5AQ-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 belongs to Diodes' automotive TVS portfolio, engineered specifically to meet stringent ISO7637-2 and ISO10605 requirements for 12V/24V vehicle electrical systems - with emphasis on clamping precision, thermal robustness, and PPAP-ready documentation.
FAQ
What is the difference between SMCJ7.5AQ-13-F and SMCJ7.5A?
The SMCJ7.5AQ-13-F is AEC-Q101 qualified, PPAP-capable, and manufactured in IATF 16949-certified facilities with controlled change management - whereas SMCJ7.5A lacks automotive qualification and traceability documentation. Both share identical electrical specs and SMC packaging, but only the 'Q' suffix guarantees compliance for production automotive use.
Can SMCJ7.5AQ-13-F be used for bidirectional protection?
No - SMCJ7.5AQ-13-F is unidirectional, indicated by the absence of 'C' in its part number. Bidirectional versions (e.g., SMCJ7.5CAQ-13-F) have symmetric clamping for AC or floating-line applications. Using this part for bidirectional scenarios would leave positive transients unprotected on the anode side.
What is the maximum allowable mounting temperature during reflow?
The SMCJ7.5AQ-13-F supports standard lead-free reflow profiles per J-STD-020, with peak temperature up to 260°C for ≤30 seconds. Its moisture sensitivity level is MSL 1, meaning it can be stored indefinitely at ambient conditions without baking prior to assembly.
How does its clamping voltage compare to competing 7.5V TVS diodes?
At 116.3A IPP, SMCJ7.5AQ-13-F clamps to 12.9V - 0.4V lower than Littelfuse SMAJ7.5A (13.3V) and 0.7V lower than ON Semiconductor SMAJ7.5A (13.6V) under identical 10×1000μs waveform conditions, directly improving margin for 13.5V-tolerant downstream ICs.
SMCJ7.5AQ-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):
- 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
SMCJ7.5AQ-13-F FAQ
1.How can I place an order for SMCJ7.5AQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ7.5AQ-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 SMCJ7.5AQ-13-F reliable?
The price and inventory of SMCJ7.5AQ-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 SMCJ7.5AQ-13-F is usually 5 days.
3.What payment methods are accepted for SMCJ7.5AQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ7.5AQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ7.5AQ-13-F?
SMCJ7.5AQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ7.5AQ-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 SMCJ7.5AQ-13-F?
For technical support, including SMCJ7.5AQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ7.5AQ-13-F requirements.
6.How does Aetrix verify that SMCJ7.5AQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMCJ7.5AQ-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 SMCJ7.5AQ-13-F meets industry standards.
7.What is the process for return or replacement of SMCJ7.5AQ-13-F?
All SMCJ7.5AQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ7.5AQ-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 SMCJ7.5AQ-13-F part is unused and in its original packaging.
Return procedure for SMCJ7.5AQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ7.5AQ-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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Diodes Incorporated
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