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Diodes Incorporated SMAJ100CAQ-13-F
- Part No.:
- SMAJ100CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ100CAQ-13-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMA
- Quantity:
- Payment:
- Shipping:
Inventory:7,029
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Product details
Overview
SMAJ100CAQ-13-F from Diodes Incorporated is a bi-directional 400W automotive transient voltage suppressor (TVS) diode with 100V reverse standoff voltage, 162V max clamping voltage at 2.5A peak pulse current, and AEC-Q101 qualification for under-hood and powertrain applications.
For engineers reviewing the SMAJ100CAQ-13-F datasheet, SMAJ100CAQ-13-F pinout, SMAJ100CAQ-13-F application, or SMAJ100CAQ-13-F equivalent, key selection criteria include ISO7637-2 Pulse 1/2a/3a/3b surge immunity, ISO10605 ESD robustness, clamping ratio, unidirectional vs. bi-directional polarity, and IATF 16949 manufacturing traceability.
Technical Context
This bi-directional TVS operates symmetrically across both polarities to clamp transients on signal or power lines without requiring polarity awareness in layout. It uses glass-passivated junction construction for stable breakdown and low leakage (<0.5µA at VRWM).
Designed for single-pulse 10×1000µs waveform compliance, it delivers 400W peak pulse power at TA = +25°C with derating above ambient - maintaining 1.0W steady-state dissipation at TL = +75°C and operating from –55°C to +175°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400W - sustains single 10×1000µs surges per ISO7637-2 without failure |
| Reverse Standoff Voltage (VRWM) | 100V - maximum continuous working voltage before clamping initiates |
| Max Clamping Voltage (VC) | 162V @ IPP = 2.5A - limits downstream voltage stress during surge events |
| Breakdown Voltage (VBR) | 111–123V @ IT = 1.0mA - tight 10.8% tolerance ensures predictable turn-on |
| Leakage Current (IR) | <0.5µA @ 100V - negligible standby power loss in always-on automotive circuits |
| Operating Temperature | –55°C to +175°C - supports engine control unit (ECU), transmission, and ADAS module placement |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded plastic UL 94V-0 housing, cathode band omitted (bi-directional device), 0.064g mass, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts reverse surge energy during negative transients (e.g., ISO7637-2 Pulse 1: –100V) |
| Cathode | Transient current entry (positive polarity) | Accepts forward surge energy during positive transients (e.g., ISO7637-2 Pulse 2a: +50V) |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or polarity-agnostic lines (e.g., CAN bus, LIN, sensor inputs) |
| AEC-Q101 qualification | Validated reliability for automotive powertrain and chassis systems with zero early-life failures |
| Glass-passivated die | Ensures stable VBR over lifetime and resistance to humidity-induced parameter shift |
| Lead-free & halogen-free | Meets RoHS 3 and automotive "Green" requirements (<900ppm Br/Cl, <1000ppm Sb) |
Applications
| Engine Control Unit (ECU) Power Input | CAN FD Transceiver Protection |
|---|---|
Use Scenario: Protects 12V battery-supplied microcontroller power rails from load dump and alternator ripple. IC Role / Device Role: Primary surge shunt placed upstream of DC-DC converter input. Use Value: Clamps ISO7637-2 Pulse 1 (–100V) and Pulse 3b (+100V) within 162V, preventing MOSFET gate oxide rupture. | Use Scenario: Shields high-speed CAN FD physical layer transceivers from ESD and coupled transients. IC Role / Device Role: Bi-directional line protector on CANH/CANL differential pair. Use Value: Maintains signal integrity by limiting clamping overshoot to ≤162V while supporting >5Mbps data rates via low capacitance. |
| Body Control Module (BCM) Sensor Interface | ADAS Camera Power Line |
Use Scenario: Guards analog inputs from parking sensors and rain/light detectors against wiring harness coupling. IC Role / Device Role: Localized TVS at connector entry point for 5V/3.3V sensor supply lines. Use Value: Blocks ISO10605 ±30kV contact discharge without latch-up or parametric drift after repeated events. | Use Scenario: Secures 12V power feed to front-facing stereo camera modules exposed to engine bay EMI. IC Role / Device Role: First-stage transient absorber before buck regulator and image sensor IC. Use Value: Withstands 175°C junction temperature and maintains clamping performance after thermal cycling (–40°C to +125°C ambient). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-Q | Uni-directional; same VRWM/VC but requires correct polarity orientation | Not suitable for AC or floating lines; needs explicit anode/cathode routing | Select only when circuit polarity is fixed and board space allows directional layout |
| SMCJ100CA | Higher 1500W PPK; larger SMC package (DO-214AB); 165V VC @ 10.5A | Better for high-energy pulses (e.g., alternator load dump), but incompatible SMA footprint | Choose when surge energy exceeds 400W and PCB rework for SMC is acceptable |
Compared with SMAJ100A-Q, SMAJ100CAQ-13-F eliminates polarity-dependent layout risk; versus SMCJ100CA, it trades peak power headroom for compact SMA fit in space-constrained ECUs and ADAS modules.
Availability
SMAJ100CAQ-13-F is available at Aetrix Electronics and suitable for engine control units, CAN FD networks, body control modules, and ADAS camera systems requiring stable component supply across automotive production lifecycles.
Supply support for SMAJ100CAQ-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 for automotive, industrial, and computing markets.
The SMAJ series is part of Diodes' AEC-Q101-qualified automotive protection portfolio, engineered specifically for ISO7637-2 and ISO10605 compliance in harsh-temperature vehicle subsystems.
FAQ
What does the 'C' suffix in SMAJ100CAQ-13-F indicate?
The 'C' denotes bi-directional functionality: the device clamps transients of either polarity symmetrically, eliminating need for polarity-aware placement. This differs from uni-directional variants (e.g., SMAJ100AQ-13-F) that require correct anode/cathode orientation relative to system ground.
Is SMAJ100CAQ-13-F compatible with lead-free reflow processes?
Yes - it features matte tin lead-free plating, qualified to MIL-STD-202 Method 208, and rated for standard Pb-free reflow profiles (peak 260°C). Its moisture sensitivity level is 1, allowing unlimited floor life without dry-pack requirements.
How does its clamping voltage compare to competing 100V TVS diodes?
At 2.5A IPP, SMAJ100CAQ-13-F clamps at 162V - matching industry-standard 1.62×VRWM ratio. Competing devices like Littlefuse SMF100CA specify 165V, making this Diodes variant marginally tighter for critical 12V rail protection where <165V absolute clamping is required.
Can it be used outside automotive applications?
Yes - its –55°C to +175°C operation, 400W surge rating, and low leakage suit industrial motor drives and renewable energy inverters. However, AEC-Q101 qualification and PPAP documentation are automotive-specific value-adds not needed in non-automotive use.
SMAJ100CAQ-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AC, SMA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 2.5A
- Power - Peak Pulse:
- 400W
- 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:
- SMA
SMAJ100CAQ-13-F FAQ
1.How can I place an order for SMAJ100CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ100CAQ-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 SMAJ100CAQ-13-F reliable?
The price and inventory of SMAJ100CAQ-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 SMAJ100CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMAJ100CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ100CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ100CAQ-13-F?
SMAJ100CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ100CAQ-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 SMAJ100CAQ-13-F?
For technical support, including SMAJ100CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ100CAQ-13-F requirements.
6.How does Aetrix verify that SMAJ100CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMAJ100CAQ-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 SMAJ100CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMAJ100CAQ-13-F?
All SMAJ100CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ100CAQ-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 SMAJ100CAQ-13-F part is unused and in its original packaging.
Return procedure for SMAJ100CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ100CAQ-13-F Tags
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