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Diodes Incorporated SMCJ30CAQ-13-F
- Part No.:
- SMCJ30CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ30CAQ-13-F.pdf
- Description:
- TVS DIODE 30VWM 48.4VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,790
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Product details
Overview
SMCJ30CAQ-13-F from Diodes Incorporated is a bidirectional 1,500W automotive transient voltage suppressor (TVS) diode in SMC package, with 30V reverse standoff voltage (VRWM), 48.4V max clamping voltage at 31A 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 SMCJ30CAQ-13-F datasheet, SMCJ30CAQ-13-F pinout, SMCJ30CAQ-13-F application, or SMCJ30CAQ-13-F equivalent, this part supports high-reliability automotive surge suppression where clamping voltage margin, unidirectional/bidirectional selection, and IATF 16949 traceable sourcing are critical design factors.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering sub-nanosecond response to transients while maintaining ≤5µA reverse leakage at 30V VRWM. Its glass-passivated junction ensures stable breakdown behavior under repeated surge stress.
The device complies with ISO7637-2 Pulse 1 (–100V), Pulse 2a (+50V), Pulse 3a (–150V), and Pulse 3b (+100V), and meets ISO10605 ESD requirements up to ±30kV (air/contact discharge) with 150pF/330Ω network.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W - sustains single 10×1000µs surges without failure |
| Reverse Standoff Voltage | 30V - maximum continuous DC or RMS voltage before significant leakage |
| Clamping Voltage | 48.4V @ 31A - limits transient voltage seen by protected ICs during ISO7637-2 Pulse 1 |
| Breakdown Voltage | 33.3–36.8V @ 1mA - defines sharp avalanche onset for predictable clamping |
| Leakage Current | ≤5µA @ 30V - minimizes standby power loss in always-on automotive modules |
| Operating Temperature | –55°C to +150°C - supports engine bay and ADAS ECU placement |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability per stress test conditions |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 rating, cathode band omitted (bidirectional configuration).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; no polarity dependency enables flexible PCB layout |
| Case / Body | Thermal mass & mechanical anchor | 0.21g weight and 2.75–3.18mm thickness support thermal dissipation and board-level shock resistance |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential automotive signals (e.g., LIN, CAN FD stubs) |
| Glass-passivated die | Ensures long-term stability of VBR and clamping performance across temperature and life cycles |
| Lead-free & halogen-free | Meets RoHS 3 (2015/863/EU) and automotive green standards (<900ppm Br/Cl, <1000ppm Sb) |
| IATF 16949 manufacturing | Guarantees process control, lot traceability, and PPAP documentation for Tier 1 OEM programs |
Applications
| Infotainment Power Supply Protection | Body Control Module (BCM) CAN Bus Interface |
|---|---|
Use Scenario: Protecting 12V input rails of head unit power management ICs against load dump and jump-start surges. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converters and LDOs. Use Value: Limits transient voltage to ≤48.4V, preserving downstream regulator SOA and avoiding brownout resets. | Use Scenario: Safeguarding CAN transceiver supply pins (VCC) and common-mode lines against coupled transients on vehicle harnesses. IC Role / Device Role / Timing Role: Bidirectional shunt clamp on CANH/CANL differential pair and VCC rail. Use Value: Maintains signal integrity during ISO7637-2 Pulse 3b (+100V) by clamping within 1ns, preventing transceiver latch-up. |
| ADAS Camera Module ESD Protection | Electric Power Steering (EPS) Motor Driver Gate Drive Line |
Use Scenario: Shielding FPD-Link III serializer/deserializer I/O pins from ISO10605 contact discharge events. IC Role / Device Role / Timing Role: Low-capacitance (≈100pF) bidirectional TVS placed directly at connector interface. Use Value: Absorbs ±30kV ESD pulses without degrading 3Gbps video signal rise/fall times. | Use Scenario: Suppressing inductive kickback from H-bridge MOSFET switching in EPS motor drivers. IC Role / Device Role / Timing Role: Clamp across low-side gate drive supply (VDD) and ground to prevent driver IC overvoltage. Use Value: Handles 200A non-repetitive surge (IFSM), protecting gate drivers during fault-induced shoot-through. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC30CA | Same VRWM (30V) and clamping (48.4V), but 1000W PPK rating and DO-214AA (SMB) package | Limited to lower-energy transients; less robust for ISO7637-2 Pulse 1 (–100V) | Select when board space is constrained and surge energy is below 120mJ |
| TPSMD30CA | Identical 1500W/30V specs, but Texas Instruments' version uses different thermal pad layout and JEDEC registration | Requires revalidation of solder joint reliability per J-STD-020 MSL Level 1 | Choose when TI ecosystem alignment or alternate logistics chain is required |
Compared with SAC30CA and TPSMD30CA, SMCJ30CAQ-13-F delivers higher surge margin in engine-bay environments due to its SMC package's superior thermal mass and AEC-Q101 validation scope covering extended temperature cycling and humidity bias testing.
Availability
SMCJ30CAQ-13-F is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and electric power steering ECUs requiring stable component supply with full AEC-Q101 compliance and IATF 16949 traceability.
Supply support for SMCJ30CAQ-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(AQ) series is designed specifically for automotive-grade transient suppression, targeting ISO7637-2 and ISO10605 compliance in safety-critical vehicle subsystems with zero-defect manufacturing requirements.
FAQ
What does the "C" suffix in SMCJ30CAQ-13-F indicate?
The "C" denotes bidirectional configuration: the device clamps symmetrically for both positive and negative transients, making it suitable for AC-coupled lines like CAN, LIN, or differential sensor interfaces without polarity concerns.
Is SMCJ30CAQ-13-F compatible with lead-free reflow profiles?
Yes - it features matte tin plating, complies with MIL-STD-202 Method 208, and is rated for moisture sensitivity level 1 per J-STD-020, supporting standard Pb-free reflow up to 260°C peak temperature without preconditioning.
How does its clamping voltage compare to unidirectional SMCJ30AQ-13-F?
Clamping voltage is identical (48.4V @ 31A) - the "C" variant achieves symmetry via dual-junction construction, not reduced performance; both share same thermal derating curve and 1500W peak power rating.
Can this TVS replace SMCJ33CAQ-13-F in a 3.3V logic line?
No - SMCJ30CAQ-13-F has 30V VRWM and is intended for 12V/24V automotive power rails; for 3.3V logic, use a low-voltage TVS such as D28V0L4P1Q (28V VRWM, 3.3pF) to avoid leakage and false triggering.
SMCJ30CAQ-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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 31A
- 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
SMCJ30CAQ-13-F FAQ
1.How can I place an order for SMCJ30CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ30CAQ-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 SMCJ30CAQ-13-F reliable?
The price and inventory of SMCJ30CAQ-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 SMCJ30CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMCJ30CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ30CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ30CAQ-13-F?
SMCJ30CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ30CAQ-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 SMCJ30CAQ-13-F?
For technical support, including SMCJ30CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ30CAQ-13-F requirements.
6.How does Aetrix verify that SMCJ30CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMCJ30CAQ-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 SMCJ30CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMCJ30CAQ-13-F?
All SMCJ30CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ30CAQ-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 SMCJ30CAQ-13-F part is unused and in its original packaging.
Return procedure for SMCJ30CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ30CAQ-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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