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Diodes Incorporated SMAJ16AQ-13-F
- Part No.:
- SMAJ16AQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ16AQ-13-F.pdf
- Description:
- TVS DIODE 16VWM 26VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:1,874
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Product details
Overview
SMAJ16AQ-13-F from Diodes Incorporated is a unidirectional 400W automotive transient voltage suppressor (TVS) diode with 16V reverse standoff voltage, 26.0V max clamping voltage at 15.3A peak pulse current, and AEC-Q101 qualification for under-hood and powertrain electronics protection against ISO7637-2 Pulse 1/2a/3a/3b and ISO10605 ESD events.
For engineers reviewing the SMAJ16AQ-13-F datasheet, SMAJ16AQ-13-F pinout, SMAJ16AQ-13-F application, or SMAJ16AQ-13-F equivalent, this device is selected for robust overvoltage protection in 12V automotive subsystems where clamping performance, surge reliability, and PPAP-capable supply chain traceability are critical.
Technical Context
This unidirectional TVS operates as a fast-acting shunt clamp triggered by voltage exceeding its 16V VRWM threshold, with breakdown occurring between 17.8V and 19.7V at 1mA test current. Its glass-passivated junction ensures stable leakage (<0.5µA at VRWM) and repeatable clamping behavior across temperature.
Designed for ISO-compliant transient suppression, it handles 40A non-repetitive forward surge (8.3ms half-sine), dissipates 400W peak pulse power per 10×1000µs waveform, and maintains operation from –55°C to +175°C junction temperature-enabling placement near high-temperature ECUs and motor drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400W - sustains single-event transients up to 10×1000µs without failure |
| Reverse Standoff Voltage (VRWM) | 16V - blocks normal 12V system operation while remaining inactive below surge threshold |
| Max Clamping Voltage (VC) | 26.0V @ IPP = 15.3A - limits downstream IC voltage to safe level during ISO7637-2 Pulse 1 (–100V) |
| Breakdown Voltage (VBR) | 17.8–19.7V @ IT = 1mA - defines precise turn-on window for predictable clamping onset |
| Leakage Current (IR) | <0.5µA @ VRWM - negligible standby power loss and no signal integrity impact on protected lines |
| AEC-Q101 Qualified | Yes - validated for automotive use with PPAP documentation and IATF 16949 manufacturing |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded plastic UL 94V-0 housing, cathode band polarity indicator, 0.064g mass, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during clamping | Connected to protected line (e.g., LIN bus, sensor supply); conducts surge current to ground when VRWM exceeded |
| Cathode | Reference terminal | Connected to system ground; establishes clamping reference and enables unidirectional operation |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures long-term parameter stability and resistance to humidity-induced degradation in engine bay environments |
| Lead-free, halogen-free "Green" packaging | Meets RoHS 3 and automotive environmental compliance (Br+Cl <1500ppm, Sb <1000ppm) |
| 40A peak forward surge rating | Withstands repeated 8.3ms half-sine surges per ISO7637-2 without parametric shift or failure |
| Low clamping ratio (VC/VRWM = 1.625) | Delivers tighter voltage limiting than standard TVS devices, reducing stress on downstream 3.3V/5V logic |
Applications
| Engine Control Unit (ECU) Power Input | Automotive LIN Bus Protection |
|---|---|
Use Scenario: Protects 12V supply rail of engine control modules from load dump and alternator transients. IC Role / Device Role / Timing Role: Shunt-clamp TVS placed between battery input and DC-DC converter input. Use Value: Limits voltage to ≤26V during ISO7637-2 Pulse 1 (–100V), preventing damage to 40V-rated input capacitors and regulator ICs. | Use Scenario: Safeguards LIN transceiver data lines against ESD and coupled noise from adjacent high-current wiring. IC Role / Device Role / Timing Role: Unidirectional TVS connected between LIN line and chassis ground. Use Value: Clamps contact discharge events (ISO10605, 30kV) to <26V within nanoseconds, preserving transceiver integrity without affecting 19.2kbps signaling. |
| Body Control Module (BCM) Sensor Inputs | Electric Power Steering (EPS) Motor Driver Supply |
Use Scenario: Shields analog sensor inputs (e.g., ambient temperature, humidity) from board-level ESD and harness coupling. IC Role / Device Role / Timing Role: Low-leakage TVS on each sensor signal path before ADC front-end. Use Value: Maintains <0.5µA leakage at 16V, avoiding measurement offset drift while suppressing 15kV air-discharge transients. | Use Scenario: Guards H-bridge gate driver supply against inductive kickback and battery reversal spikes. IC Role / Device Role / Timing Role: Primary clamping device on 12V VDD rail feeding motor driver ICs. Use Value: Absorbs 400W pulses without thermal runaway, enabling reliable operation in high-vibration EPS systems up to +175°C junction temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A-13-F | No AEC-Q101 qualification; standard industrial grade only | Not suitable for PPAP-controlled automotive production; limited to non-safety-critical aftermarket designs | Select only if AEC-Q101 compliance and IATF 16949 traceability are not required |
| SMCJ16A-Q | Higher 1500W peak power, larger SMC (DO-214AB) package, same VRWM/VC specs | Better suited for higher-energy transients (e.g., ISO7637-2 Pulse 5a); requires more PCB area | Choose when surge energy exceeds 400W capability or when design margin demands derated headroom |
Compared with SMAJ16A-13-F, the SMAJ16AQ-13-F adds automotive-grade qualification and supply-chain controls; compared with SMCJ16A-Q, it trades peak power for compact SMA footprint-making it optimal for space-constrained ECU modules needing certified transient immunity.
Availability
SMAJ16AQ-13-F is available at Aetrix Electronics and suitable for engine control units, body control modules, LIN bus interfaces, and electric power steering systems requiring stable component supply with full automotive change control and PPAP documentation support.
Supply support for SMAJ16AQ-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, computing, and consumer markets.
The SMAJ(AQ) series is part of Diodes' AEC-Q101-qualified TVS portfolio, engineered specifically for automotive electrical system protection with emphasis on ISO7637-2 and ISO10605 compliance, high-temperature reliability, and PPAP-ready manufacturing.
FAQ
What is the maximum operating temperature for SMAJ16AQ-13-F?
The SMAJ16AQ-13-F has a specified junction temperature range of –55°C to +175°C, verified per AEC-Q101 stress testing. This allows direct placement on high-temperature PCB areas near power stages or under-hood ECUs without thermal derating penalties up to +175°C TJ.
Does SMAJ16AQ-13-F meet ISO10605 ESD requirements?
Yes-SMAJ16AQ-13-F is rated for 30kV air discharge and 30kV contact discharge per ISO10605 (C = 150pF, R = 330Ω), confirmed in Diodes' DS40739 datasheet Section 1. This performance is achieved through low-junction-capacitance glass-passivated construction and optimized doping profile.
Is SMAJ16AQ-13-F unidirectional or bidirectional?
SMAJ16AQ-13-F is unidirectional, indicated by the absence of "C" in its part number (SMAJ16AQ vs. SMAJ16CAQ). It features a cathode band marking and is intended for DC-biased lines like power rails and LIN bus, where reverse conduction must be blocked during normal operation.
What is the clamping voltage at 10A peak pulse current?
Per the datasheet's VC vs. IPP curve (Figure 3) and linear interpolation from the 15.3A/26.0V point, SMAJ16AQ-13-F clamps to approximately 23.5V at 10A (10×1000µs waveform), maintaining a clamping ratio of ~1.47 relative to its 16V VRWM rating.
SMAJ16AQ-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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 15.3A
- 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
SMAJ16AQ-13-F FAQ
1.How can I place an order for SMAJ16AQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ16AQ-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 SMAJ16AQ-13-F reliable?
The price and inventory of SMAJ16AQ-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 SMAJ16AQ-13-F is usually 5 days.
3.What payment methods are accepted for SMAJ16AQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ16AQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ16AQ-13-F?
SMAJ16AQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ16AQ-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 SMAJ16AQ-13-F?
For technical support, including SMAJ16AQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ16AQ-13-F requirements.
6.How does Aetrix verify that SMAJ16AQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMAJ16AQ-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 SMAJ16AQ-13-F meets industry standards.
7.What is the process for return or replacement of SMAJ16AQ-13-F?
All SMAJ16AQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ16AQ-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 SMAJ16AQ-13-F part is unused and in its original packaging.
Return procedure for SMAJ16AQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ16AQ-13-F Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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