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Diodes Incorporated SMCJ22CAQ-13-F
- Part No.:
- SMCJ22CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ22CAQ-13-F.pdf
- Description:
- TVS DIODE 22VWM 35.5VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,675
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Product details
Overview
SMCJ22CAQ-13-F from Diodes Incorporated is a bidirectional 1,500W automotive transient voltage suppressor (TVS) in SMC package, with 22V reverse standoff voltage (VRWM), 35.5V max clamping voltage (VC) at 42.2A peak pulse current (IPP), and AEC-Q101 qualification for ISO7637-2 Pulse 1/2a/3a/3b and ISO10605 ESD protection in vehicle power line and signal interface circuits.
For engineers reviewing the SMCJ22CAQ-13-F datasheet, SMCJ22CAQ-13-F pinout, SMCJ22CAQ-13-F application, or SMCJ22CAQ-13-F equivalent, this part supports high-reliability automotive surge suppression where precise clamping voltage, fast response time (<1 ns), bidirectional polarity, and IATF 16949-manufactured traceability are required.
Technical Context
This bidirectional TVS diode operates symmetrically across both polarities, delivering 35.5V clamping at 42.2A (10×1000μs waveform) with <1 ns response time to transients. Its glass-passivated junction ensures stable breakdown behavior under repeated surge stress.
Designed for automotive-grade robustness, it meets ISO7637-2 Pulse 1 (−100V), Pulse 2a (+50V), Pulse 3a (−150V), Pulse 3b (+100V), and ISO10605 ESD (±30kV air/contact discharge), with operating junction temperature range −55°C to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W - sustains single 10×1000μs surges without failure in automotive load-dump or inductive switching events |
| Reverse Standoff Voltage (VRWM) | 22.0V - maximum continuous DC or RMS voltage before significant leakage; sets operating margin below system rail |
| Max Clamping Voltage (VC) | 35.5V @ IPP = 42.2A - limits transient voltage seen by downstream ICs during ISO7637-2 Pulse 1/3a events |
| Breakdown Voltage (VBR) | 24.4–27.0V @ IT = 1.0mA - defines sharp avalanche onset; tight 10.8% tolerance ensures predictable turn-on |
| Leakage Current (IR) | ≤5.0µA @ VRWM - negligible standby power loss and no interference with low-current sensor or CAN bus biasing |
| Package | SMC (DO-214AB) - surface-mount outline with 6.9mm × 4.4mm footprint, 0.21g mass, and UL 94V-0 flammability rating |
Pinout & Package
SMC package: molded plastic body, cathode band absent (bidirectional device), matte tin-plated terminals, moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge conduction path | No polarity marking; either terminal serves as anode or cathode depending on transient polarity - enables single-device protection of AC-coupled or floating lines |
| Case / Body | Thermal and mechanical interface | Exposed copper pad (per SMC outline) provides primary thermal path to PCB; requires ≥25 mm² 2-oz copper pour for PM(AV) = 5W derating |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified & PPAP capable | Validated for automotive production use with full change control, lot traceability, and IATF 16949 manufacturing |
| Glass-passivated die construction | Stable VBR over lifetime and temperature; eliminates passivation-related leakage drift in harsh under-hood environments |
| 1,500W peak pulse rating | Withstands ISO7637-2 Pulse 1 (−100V/50Ω) and Pulse 3a (−150V/33Ω) without degradation when mounted per recommended pad layout |
| RoHS 3 & Halogen-free "Green" | <900ppm Br, <900ppm Cl, <1000ppm Sb - compliant with automotive ELV directive and global material declarations |
Applications
| Automotive Power Line Protection | Infotainment System Interface Protection |
|---|---|
|
Use Scenario: 12V battery feed line exposed to load dump (ISO7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converters and microcontrollers. Use Value: Limits transient voltage to ≤35.5V, preventing latch-up or gate oxide damage in 3.3V/5V logic powered from protected rails. |
Use Scenario: USB 2.0, LVDS, or MOST data lines connecting head unit to display or camera modules. IC Role / Device Role / Timing Role: Bidirectional ESD clamp on differential pairs, co-located with common-mode chokes. Use Value: Sub-1ns response preserves signal integrity up to 480 Mbps; ±30kV ISO10605 rating prevents interface IC damage during assembly or service. |
| Body Control Module (BCM) Input Protection | ADAS Camera Power & Data Lines |
|
Use Scenario: Switched 12V inputs (door lock, window lift, lighting) subject to inductive kickback and jump-start surges. IC Role / Device Role / Timing Role: Front-end transient absorber before high-side switch drivers and input comparators. Use Value: 200A IFSM rating handles repetitive 8.3ms half-sine surges; bidirectional symmetry avoids polarity-matching errors during harness routing. |
Use Scenario: Fakra or HSD connector feeds supplying 12V power and GMSL/FPD-Link III video to surround-view cameras. IC Role / Device Role / Timing Role: Dual-role protector - clamps power rail transients and shunts ESD on shielded data pairs. Use Value: Single SMC device replaces discrete unidirectional TVS + capacitor stack; reduces BOM count while maintaining <0.5pF parasitic capacitance per line. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC22C-13-F | Same VRWM (22V) and VC (35.5V), but lower PPK = 600W; uses SMA package (smaller thermal mass) | Limited to lower-energy transients (e.g., ISO10605 only); unsuitable for ISO7637-2 Pulse 1/3a | Select only for space-constrained non-power-line locations where 600W suffices and PCB copper area is limited. |
| TPSMD22C | Identical 1500W rating and SMC package, but VBR min = 23.1V (vs. 24.4V); tighter VC spec (34.0V @ 42.2A) | Marginally lower clamping improves protection for 3.3V I/O, but higher VBR may reduce noise immunity on 24V systems | Prefer for 3.3V/5V interface protection where sub-35V clamping is critical; verify VBR compatibility with system overvoltage thresholds. |
Compared with SAC22C-13-F and TPSMD22C, SMCJ22CAQ-13-F offers the broadest automotive surge coverage (full ISO7637-2 + ISO10605), highest thermal reliability in SMC, and widest VBR tolerance - making it optimal for primary power rail protection where long-term field reliability is mandatory.
Availability
SMCJ22CAQ-13-F is available at Aetrix Electronics and suitable for automotive power distribution units, body control modules, and ADAS camera subsystems requiring stable component supply across multi-year vehicle production cycles.
Supply support for SMCJ22CAQ-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.
This device belongs to Diodes' AEC-Q101-qualified SMCJ automotive TVS family, engineered specifically for robust transient suppression in vehicle electrical systems compliant with ISO7637 and ISO10605 standards.
FAQ
What does the 'C' suffix in SMCJ22CAQ-13-F indicate?
The 'C' denotes bidirectional configuration: the device clamps transients of either polarity symmetrically, with identical VBR and VC characteristics for positive and negative surges. This eliminates polarity concerns during PCB layout and supports AC-coupled or floating signal lines - unlike unidirectional variants that require correct anode/cathode orientation.
Is SMCJ22CAQ-13-F suitable for protecting CAN FD interfaces?
Yes - its 35.5V clamping voltage safely limits transients on 12V-supplied CAN FD nodes without interfering with the ±2V differential signaling range. With <0.5pF typical junction capacitance and sub-1ns response, it preserves signal edge integrity up to 5 Mbps while meeting ISO10605 ±30kV ESD requirements for in-vehicle network ports.
How does the SMC package affect thermal performance in continuous operation?
At TL = +75°C, the device delivers 5.0W steady-state power dissipation. To achieve this, the SMC's exposed copper pad must be soldered to ≥25 mm² of 2-ounce internal or external copper plane. Without adequate copper area, derating follows Fig. 6 - e.g., at TL = +100°C, PM(AV) drops to ~3.2W, limiting sustained leakage handling capability.
Does SMCJ22CAQ-13-F require external series impedance for optimal clamping?
No external resistor is needed for basic ESD/surge clamping, but a small series ferrite bead (e.g., 60Ω @ 100MHz) between the TVS and protected IC improves high-frequency energy diversion. The device's low dynamic impedance (ZC ≈ 0.84Ω calculated from VC/IPP) ensures effective voltage limiting even with minimal trace inductance - verified per ISO7637-2 test setup.
SMCJ22CAQ-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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 42.2A
- 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
SMCJ22CAQ-13-F FAQ
1.How can I place an order for SMCJ22CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ22CAQ-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 SMCJ22CAQ-13-F reliable?
The price and inventory of SMCJ22CAQ-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 SMCJ22CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMCJ22CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ22CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ22CAQ-13-F?
SMCJ22CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ22CAQ-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 SMCJ22CAQ-13-F?
For technical support, including SMCJ22CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ22CAQ-13-F requirements.
6.How does Aetrix verify that SMCJ22CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMCJ22CAQ-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 SMCJ22CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMCJ22CAQ-13-F?
All SMCJ22CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ22CAQ-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 SMCJ22CAQ-13-F part is unused and in its original packaging.
Return procedure for SMCJ22CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ22CAQ-13-F Tags
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ESD9B5.0ST5G
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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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Diodes Incorporated
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