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Diodes Incorporated SMCJ15CAQ-13-F
- Part No.:
- SMCJ15CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ15CAQ-13-F.pdf
- Description:
- TVS DIODE 15VWM 24.4VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,712
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Product details
Overview
SMCJ15CAQ-13-F from Diodes Incorporated is a bidirectional 15V automotive-grade transient voltage suppressor (TVS) diode in SMC package, rated for 1500W peak pulse power, 24.4V max clamping voltage at 61.5A IPP, and AEC-Q101 qualified for ISO7637-2 Pulse 1/2a/3a/3b and ISO10605 ESD protection in engine control units and infotainment power rails.
For engineers reviewing the SMCJ15CAQ-13-F datasheet, SMCJ15CAQ-13-F pinout, SMCJ15CAQ-13-F application, or SMCJ15CAQ-13-F equivalent, key selection criteria include bidirectional clamping behavior, 15V standoff voltage tolerance, 24.4V clamping performance under 10×1000μs surge, AEC-Q101 qualification status, and SMC package thermal derating above +25°C ambient.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: during transients exceeding 15V reverse standoff (VRWM), it avalanches to clamp voltage at ≤24.4V while diverting up to 61.5A peak pulse current (IPP) per 10×1000μs waveform. Its glass-passivated die ensures stable breakdown characteristics across -55°C to +150°C junction temperature range.
Designed specifically for automotive environments, it meets ISO7637-2 Pulse 1 (-100V), Pulse 2a (+50V), Pulse 3a (-150V), and Pulse 3b (+100V), plus ISO10605 ±30kV air/contact ESD. Bidirectional symmetry eliminates polarity dependency in AC-coupled or floating bus lines like CAN FD or LIN physical layers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W - sustains single 10×1000μs surges without failure in automotive load-dump scenarios |
| Reverse Standoff Voltage | 15.0V - maximum continuous DC or RMS voltage before clamping initiates; matches 12V system nominal with margin |
| Max Clamping Voltage | 24.4V @ 61.5A - limits downstream IC stress during ISO7637-2 Pulse 1 (−100V) events |
| Breakdown Voltage | 16.7–18.5V @ 1.0mA - tight VBR window ensures predictable turn-on threshold |
| Leakage Current | ≤5.0µA @ 15V - negligible standby power loss in always-on vehicle modules |
| Operating Temp Range | −55°C to +150°C - supports under-hood placement near engines or transmission ECUs |
| AEC-Q101 Qualified | Yes - validated for automotive reliability including temperature cycling, HTRB, and ESD testing |
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 mass, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Identical terminals enable placement without orientation check; bidirectional clamping protects both polarities |
| Case (exposed pad) | Thermal conduction path | Integral copper slug dissipates steady-state power (5W @ TL=75°C) and aids pulse energy absorption |
Key Features
| Feature | Design Value |
|---|---|
| 1500W peak pulse rating | Handles full ISO7637-2 Pulse 1 (−100V/50Ω) without degradation in 12V systems |
| Glass-passivated die | Ensures stable VBR over lifetime and prevents parametric drift under thermal cycling |
| Bidirectional architecture | Eliminates need for dual unidirectional devices on differential buses like CAN or FlexRay |
| AEC-Q101 qualification | Validated for automotive production use with PPAP documentation and IATF 16949 manufacturing control |
| RoHS 3 & "Green" compliant | Contains <900ppm Br, <900ppm Cl, <1000ppm Sb - meets global automotive environmental mandates |
Applications
| Engine Control Unit (ECU) Power Input | CAN FD Physical Layer Protection |
|---|---|
Use Scenario: 12V battery feed to microcontroller power supply in gasoline/diesel engine management systems exposed to load dump and alternator ripple. IC Role / Device Role: Primary shunt TVS suppressing transients before LDO regulators and MCU VDD pins. Use Value: Clamps ISO7637-2 Pulse 1 to ≤24.4V, preventing brownout or latch-up in ASIL-B safety-critical MCUs. | Use Scenario: Bidirectional protection of CAN FD high-speed data lines (CANH/CANL) against ESD and coupled surges from adjacent power wiring. IC Role / Device Role: Symmetrical clamping device placed across differential pair to limit common-mode overvoltage. Use Value: Maintains signal integrity by limiting voltage excursion to <±25V while adding <1.5pF capacitance at 0V bias. |
| Infotainment Head Unit USB Power Rail | Body Control Module (BCM) LIN Bus |
Use Scenario: 5V USB VBUS line in automotive head units subject to hot-plug ESD and cable-induced surges. IC Role / Device Role: Secondary overvoltage clamp after primary fuse and upstream TVS, protecting USB controller ICs. Use Value: Delivers 30kV contact discharge immunity per ISO10605 while maintaining low leakage (<5µA) to avoid battery drain. | Use Scenario: LIN bus termination point in door modules or seat controllers where long harness runs induce transients. IC Role / Device Role: Low-capacitance bidirectional suppressor placed between LIN transceiver and connector. Use Value: Limits voltage to <25V during ISO7637-2 Pulse 3a (−150V), preserving LIN transceiver functionality without signal distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC15-TP from Microchip | Same 15V VRWM and 24.4V VC, but lower 1000W PPK rating and no AEC-Q101 certification | Limited to industrial or non-safety-critical automotive accessories | Select only if AEC-Q101 is not required and cost is prioritized over surge margin |
| SMBJ15CA from Vishay | Identical electrical specs and AEC-Q101 qualification, but SMB package (lower 600W PPK vs 1500W) | Not suitable for high-energy load-dump events requiring full 1500W dissipation | Use only in space-constrained designs where surge energy is limited to ≤600W |
Compared with SAC15-TP and SMBJ15CA, SMCJ15CAQ-13-F delivers verified 1500W surge handling in AEC-Q101-compliant SMC packaging-critical for engine bay and powertrain applications where full ISO7637-2 Pulse 1 compliance is mandatory.
Availability
SMCJ15CAQ-13-F is available at Aetrix Electronics and suitable for engine control units, CAN FD networks, infotainment power rails, and body control modules requiring stable component supply with automotive-grade traceability and lifecycle support.
Supply support for SMCJ15CAQ-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.
The SMCJ(AQ) series targets automotive electronics requiring AEC-Q101 qualification, designed to replace legacy TVS families with enhanced surge robustness, tighter parameter distributions, and full ISO7637/ISO10605 compliance out-of-box.
FAQ
What does the 'C' suffix in SMCJ15CAQ-13-F signify?
The 'C' denotes bidirectional configuration: both terminals behave identically under positive or negative overvoltage, enabling placement without polarity consideration. This differs from unidirectional variants (e.g., SMCJ15AQ-13-F) that require correct anode/cathode orientation relative to circuit ground.
How does SMCJ15CAQ-13-F perform under repeated surge conditions?
It is rated for non-repetitive pulses only-maximum 4 pulses per minute at 8.3ms half-sine waveform. For repetitive transients, thermal derating applies: peak power drops to 75% at +75°C ambient and 50% at +125°C, per Fig. 1 derating curve in DS40741 Rev. 8-2.
Is SMCJ15CAQ-13-F compatible with lead-free reflow soldering processes?
Yes-it features matte tin plating compliant with IPC/JEDEC J-STD-020 moisture sensitivity level 1, supporting standard Pb-free reflow profiles up to 260°C peak temperature. The SMC package's thermal mass requires adequate preheat and soak time to prevent thermal shock during ramp-up.
Does this TVS diode require external current limiting?
No external current-limiting resistor is needed-the device self-limits via avalanche conduction once VRWM is exceeded. However, series impedance (e.g., fuse, PCB trace resistance) must be considered in total clamping loop inductance to avoid voltage overshoot beyond VC during fast-rising transients (e.g., ESD).
SMCJ15CAQ-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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 61.5A
- 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
SMCJ15CAQ-13-F FAQ
1.How can I place an order for SMCJ15CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ15CAQ-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 SMCJ15CAQ-13-F reliable?
The price and inventory of SMCJ15CAQ-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 SMCJ15CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMCJ15CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ15CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ15CAQ-13-F?
SMCJ15CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ15CAQ-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 SMCJ15CAQ-13-F?
For technical support, including SMCJ15CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ15CAQ-13-F requirements.
6.How does Aetrix verify that SMCJ15CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMCJ15CAQ-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 SMCJ15CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMCJ15CAQ-13-F?
All SMCJ15CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ15CAQ-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 SMCJ15CAQ-13-F part is unused and in its original packaging.
Return procedure for SMCJ15CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ15CAQ-13-F Tags
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Diodes Incorporated
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