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Diodes Incorporated SMAJ100AQ-13-F
- Part No.:
- SMAJ100AQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ100AQ-13-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMA
- Quantity:
- Payment:
- Shipping:
Inventory:3,883
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Product details
Overview
SMAJ100AQ-13-F from Diodes Incorporated is a unidirectional 400W surface-mount 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. It protects CAN bus, LIN, and body control module power inputs against ISO7637-2 Pulse 1 (−100V), Pulse 2a (+50V), Pulse 3a (−150V), and ISO10605 ESD events (±30kV).
For engineers reviewing the SMAJ100AQ-13-F datasheet, SMAJ100AQ-13-F pinout, SMAJ100AQ-13-F application, or SMAJ100AQ-13-F equivalent, this device serves as a primary surge protection component in 12V/24V automotive subsystems where clamping performance, low leakage (<0.5µA @ 100V), and IATF 16949 manufacturing traceability are critical.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents <0.5µA leakage at VRWM = 100V; during transients, it clamps to ≤162V within 1ns response time while dissipating up to 400W peak pulse power per 10×1000µs waveform. Its glass-passivated junction ensures stable breakdown behavior across −55°C to +175°C junction temperature range.
Designed for automotive-grade reliability, it meets ISO7637-2 Pulse 1, 2a, 3a, 3b and ISO10605 (150pF/330Ω) requirements. The SMA package supports automated SMT assembly with moisture sensitivity level 1 and lead-free matte tin plating compliant with MIL-STD-202.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400W - sustains 10×1000µs surges without failure; enables robust protection against load dump and inductive switching events |
| Reverse Standoff Voltage | 100V - blocks normal 24V system operation with margin; prevents false triggering during battery transients |
| Max Clamping Voltage | 162V @ IPP = 2.5A - limits downstream IC voltage stress during ISO7637-2 Pulse 1 (−100V) and Pulse 3a (−150V) |
| Breakdown Voltage | 111–123V @ IT = 1.0mA - tight VBR tolerance ensures predictable turn-on and consistent clamping behavior |
| Leakage Current | <0.5µA @ VRWM = 100V - minimizes standby power loss in always-on vehicle modules (e.g., telematics, alarm systems) |
| Operating Temperature | −55°C to +175°C - supports under-hood placement near engine ECUs and transmission controllers |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, single-ended unidirectional configuration with cathode band marking. Dimensions: 4.60 × 2.92 × 2.29 mm (L × W × H); weight ≈ 0.064 g; UL 94V-0 molded plastic body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge return path | Connected to ground or low-impedance chassis reference; completes clamping loop during negative transients |
| Cathode | Protected line connection | Connected to protected node (e.g., CAN_H, LIN bus, 24V supply rail); conducts during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use with PPAP capability and IATF 16949 manufacturing control |
| Glass-passivated die | Ensures stable VBR and low leakage across temperature and lifetime; eliminates passivation-related drift |
| Lead-free & RoHS 3 compliant | Meets EU Directive 2015/863/EU; matte tin plating ensures solderability and corrosion resistance |
| ISO7637-2 & ISO10605 certified | Tested to full Pulse 1/2a/3a/3b and ±30kV air/contact ESD per standard protocols |
Applications
| Body Control Module (BCM) Power Input | CAN FD Transceiver Protection |
|---|---|
|
Use Scenario: 24V supply rail feeding BCM microcontroller, relay drivers, and sensor interfaces in modern vehicles. IC Role / Device Role / Timing Role: Primary shunt TVS protecting downstream LDOs, CAN transceivers, and MCU I/O from load dump and jump-start surges. Use Value: Clamps to ≤162V during ISO7637-2 Pulse 1 (−100V), preventing latch-up or permanent damage to 3.3V/5V logic rails. |
Use Scenario: CAN FD data lines (CAN_H/CAN_L) in ADAS domain controllers exposed to ESD and board-level coupling. IC Role / Device Role / Timing Role: Unidirectional TVS on CAN_H line referenced to ground; fast 1ns response isolates transceiver during ESD events. Use Value: Limits voltage excursion to <162V during ±30kV contact discharge (ISO10605), preserving signal integrity and transceiver functionality. |
| LIN Bus Node Protection | Electric Power Steering (EPS) Sensor Interface |
|
Use Scenario: LIN slave nodes (e.g., door modules, seat position sensors) powered from 12V battery via local regulator. IC Role / Device Role / Timing Role: Standoff-rated TVS on LIN bus line and VCC input; suppresses coupled noise from adjacent high-current circuits. Use Value: Maintains <0.5µA leakage at 12V nominal, enabling low-power sleep mode compliance while clamping to ≤162V during transients. |
Use Scenario: Position sensor analog outputs (e.g., resolver, Hall-effect) in EPS motor control units operating near high-current inverters. IC Role / Device Role / Timing Role: Secondary protection on sensor supply and signal lines upstream of precision ADC front-end. Use Value: Withstands repeated 40A surge current (IFSM) and maintains stable clamping across −40°C to +150°C ambient, ensuring functional safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-13-F | No AEC-Q101 qualification; non-automotive grade; identical electrical specs and SMA package | Not PPAP-capable; unsuitable for production automotive programs requiring change control and IATF 16949 traceability | Select only for prototyping or non-automotive industrial use where qualification is not required |
| SMCJ100A-Q | Higher 1500W peak power; DO-214AB (SMC) package; same 100V VRWM and AEC-Q101 rating | Used where higher surge energy handling is needed (e.g., alternator output lines); larger footprint increases PCB area | Choose when system-level testing reveals insufficient margin with 400W rating; verify thermal layout for SMC package |
Compared with SMAJ100AQ-13-F, SMAJ100A-13-F lacks automotive qualification and traceability, while SMCJ100A-Q offers greater surge capacity at the cost of size and thermal mass-making SMAJ100AQ-13-F the optimal balance of AEC-Q101 compliance, 400W capability, and SMA footprint for space-constrained body electronics.
Availability
SMAJ100AQ-13-F is available at Aetrix Electronics and suitable for automotive body electronics, CAN/LIN network nodes, and electric power steering sensor interfaces requiring stable component supply, full AEC-Q101 documentation, and IATF 16949 traceability.
Supply support for SMAJ100AQ-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 integrated circuits, specializing in high-reliability components for automotive, industrial, and computing markets.
SMAJxxAQ series belongs to Diodes' AEC-Q101-qualified automotive TVS portfolio, designed specifically to meet ISO7637-2 and ISO10605 requirements in harsh vehicle environments with extended temperature operation and process-controlled manufacturing.
FAQ
What is the polarity configuration of SMAJ100AQ-13-F?
SMAJ100AQ-13-F is a unidirectional TVS diode with cathode band marking. It conducts only during positive overvoltage events on the cathode terminal relative to anode, making it suitable for DC-biased lines like 24V supplies and CAN_H. Bi-directional variants include "C" in the part number (e.g., SMAJ100CAQ-13-F).
Does SMAJ100AQ-13-F require derating at elevated ambient temperatures?
Yes. Peak pulse power must be derated linearly above +25°C ambient: at +85°C, maximum PPK drops to ~280W; at +125°C, it falls to ~160W. Steady-state power dissipation is limited to 1.0W at TL = +75°C, with thermal resistance from lead to ambient ≈ 75°C/W.
How does SMAJ100AQ-13-F perform under ISO7637-2 Pulse 3b?
SMAJ100AQ-13-F clamps +100V transients per ISO7637-2 Pulse 3b with ≤162V clamping voltage at 2.5A, well below the 180V threshold that could damage typical 24V-rated downstream regulators. Its 1ns response ensures suppression before sensitive ICs experience overstress.
Can SMAJ100AQ-13-F be used in parallel for higher surge current handling?
No. Parallel connection of TVS diodes is not recommended due to mismatched VBR and dynamic impedance, leading to uneven current sharing and potential single-device failure. For higher current, select a higher-rated device like SMCJ100A-Q or use staged protection with upstream fusing.
SMAJ100AQ-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:
- 1
- Bidirectional Channels:
- -
- 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
SMAJ100AQ-13-F FAQ
1.How can I place an order for SMAJ100AQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ100AQ-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 SMAJ100AQ-13-F reliable?
The price and inventory of SMAJ100AQ-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 SMAJ100AQ-13-F is usually 5 days.
3.What payment methods are accepted for SMAJ100AQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ100AQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ100AQ-13-F?
SMAJ100AQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ100AQ-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 SMAJ100AQ-13-F?
For technical support, including SMAJ100AQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ100AQ-13-F requirements.
6.How does Aetrix verify that SMAJ100AQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMAJ100AQ-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 SMAJ100AQ-13-F meets industry standards.
7.What is the process for return or replacement of SMAJ100AQ-13-F?
All SMAJ100AQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ100AQ-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 SMAJ100AQ-13-F part is unused and in its original packaging.
Return procedure for SMAJ100AQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ100AQ-13-F Tags
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