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Diodes Incorporated SMAJ10A-13-F
- Part No.:
- SMAJ10A-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ10A-13-F.pdf
- Description:
- TVS DIODE 10VWM 17VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:25,388
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Product details
Overview
SMAJ10A-13-F from Diodes Incorporated is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power lines and signal interfaces. It features a 10V reverse standoff voltage (VRWM), 11.1V minimum breakdown voltage (VBR), 17.0V maximum clamping voltage (VC) at 23.5A peak pulse current (IPP), and operates across –55°C to +150°C. Used in automotive infotainment power rails to absorb load-dump transients.
For engineers reviewing the SMAJ10A-13-F datasheet, SMAJ10A-13-F pinout, SMAJ10A-13-F application, or SMAJ10A-13-F equivalent, key selection criteria include clamping voltage margin vs. protected IC VCC rating, peak pulse current capability under ISO 7637-2 Pulse 5a, unidirectional polarity alignment with DC bias, and SMA package thermal performance under sustained surge duty cycles.
Technical Context
This TVS diode employs glass-passivated silicon junction construction to achieve fast response time (<1.0 ps) and stable clamping under repetitive 8.3 ms half-sine surges. Its unidirectional configuration provides low-leakage forward blocking while enabling robust reverse avalanche conduction during overvoltage events.
The device complies with AEC-Q101 stress testing requirements when sourced as the automotive-grade variant (SMAJ10AQ), and its 1.0 W steady-state power dissipation at TL = +75°C supports reliable operation in thermally constrained PCB layouts near power converters or motor drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W - Sustains single 8.3 ms surge without degradation; derates linearly above +25°C ambient. |
| Clamping Voltage VC | 17.0 V @ IPP = 23.5 A - Limits voltage seen by downstream 12 V-rated ICs during ISO 7637-2 Pulse 5a load dump. |
| Reverse Standoff VRWM | 10 V - Sets maximum continuous DC operating voltage before leakage exceeds 5 µA. |
| Breakdown Voltage VBR | 11.1–12.3 V @ IT = 1.0 mA - Ensures reliable turn-on margin above VRWM for predictable clamping onset. |
| Operating Temperature | –55°C to +150°C - Validated for under-hood automotive locations and industrial power supply environments. |
| Package | SMA (DO-214AC) - Standardized footprint compatible with automated SMT placement and reflow profiles per J-STD-020 Level 1. |
Pinout & Package
Two-terminal SMA (DO-214AC) surface-mount package with cathode band marking on unidirectional variants. Molded plastic case rated UL 94V-0; terminals feature matte tin plating for solderability per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC Return / GND Reference | Connected to system ground or low-side return path; defines reference for clamping action. |
| Cathode | Protected Line Input | Connected to line being protected (e.g., 12 V battery rail); avalanche conduction occurs from cathode to anode during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W Peak Pulse Power | Enables compliance with ISO 7637-2 Pulse 5a (load dump) without cascaded protection stages. |
| Glass Passivated Die | Ensures long-term parameter stability and reduced parameter drift under thermal cycling and humidity exposure. |
| Low Clamping Ratio (VC/VRWM = 1.7) | Minimizes voltage overshoot margin required for protected ICs, supporting tighter VCC tolerances. |
| RoHS & Halogen-Free Compliance | Meets automotive and industrial environmental mandates including EU RoHS 3 and IATF 16949 manufacturing controls. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects microcontroller GPIO and CAN transceiver power pins from battery line transients during jump-start or alternator load dump. IC Role / Device Role: Primary clamping element placed directly at connector entry point before EMI filter and LDO. Use Value: Limits voltage to ≤17.0 V during 100 V/100 ms load dump event, preventing latch-up or oxide rupture in 12 V-rated logic devices. | Use Scenario: Shields 24 V digital input optocoupler circuits from field-wiring induced surges in factory automation cabinets. IC Role / Device Role: First-line transient absorber ahead of series current-limiting resistor and input conditioning network. Use Value: Absorbs 400 W surge energy without failure, maintaining <5 µA leakage at 24 V nominal to preserve input threshold accuracy. |
| USB-C Power Delivery Port | Telecom Remote PHY Power Supply |
Use Scenario: Guards VBUS line against hot-plug inrush and cable ESD events in portable docking stations. IC Role / Device Role: Unidirectional TVS placed between USB-C receptacle and buck converter input capacitor. Use Value: Clamps ESD contact discharge (IEC 61000-4-2 ±15 kV) to <17 V within <1 ns, preserving USB PD controller integrity. | Use Scenario: Safeguards 48 V phantom power input of remote PHY modules in fiber-to-the-home (FTTH) nodes. IC Role / Device Role: Secondary surge clamp after primary MOV, handling fast-rising transients missed by bulk suppression. Use Value: Provides precise 17.0 V clamping ceiling to protect PoE interface ICs rated for 57 V absolute maximum, avoiding over-clamp damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A-E3/5A (Vishay) | Identical VRWM (10 V), VC (17.0 V), IPP (23.5 A); same SMA package; RoHS-compliant matte tin finish. | No AEC-Q101 qualification; not PPAP-capable; intended for commercial/industrial use only. | Select for cost-sensitive non-automotive designs where automotive change control is unnecessary. |
| P6SMB10A (ON Semiconductor) | Same VRWM and VC specs; 600 W peak power rating; larger SMB package (DO-214AA) with higher thermal mass. | Higher surge margin enables extended life under repetitive surges; requires larger PCB area and different pad layout. | Choose when system-level surge testing exceeds single-event 400 W requirement or board space permits SMB footprint. |
Compared with SMAJ10A-E3/5A, the SMAJ10A-13-F offers automotive qualification traceability and IATF 16949 manufacturing assurance; versus P6SMB10A, it trades surge headroom for compactness and lower profile-critical for thin-profile automotive ECUs and space-constrained telecom modules.
Availability
SMAJ10A-13-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, USB-C power delivery systems, and telecom remote PHY modules requiring stable component supply across multi-year production cycles.
Supply support for SMAJ10A-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The SMAJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-reliability DC line protection in automotive, industrial, and communications infrastructure where fast clamping, low leakage, and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum clamping voltage of SMAJ10A-13-F under standard test conditions?
The maximum clamping voltage (VC) is 17.0 V when subjected to a 23.5 A peak pulse current (IPP) using the 8.3 ms half-sine waveform defined in IEC 61000-4-5. This value is measured at TA = +25°C with terminals held at ambient temperature and represents the upper bound of voltage imposed on protected circuitry during surge events.
Does SMAJ10A-13-F meet automotive qualification standards?
SMAJ10A-13-F is the standard industrial-grade version and is not AEC-Q101 qualified. However, Diodes offers the functionally identical SMAJ10AQ variant, which undergoes full AEC-Q101 stress testing, is PPAP-capable, and manufactured in IATF 16949-certified facilities-required for automotive production applications.
How does the SMA package affect thermal performance in high-surge applications?
The SMA (DO-214AC) package delivers 1.0 W steady-state power dissipation at TL = +75°C, with pulse derating beginning above +25°C ambient. Its low thermal resistance (RθJA ≈ 125°C/W) allows effective heat spreading into copper pours, but repeated surges require careful PCB layout with ≥25 mm² of 2 oz copper connected to both terminals to avoid localized overheating.
Can SMAJ10A-13-F be used in bidirectional signal line protection?
No-SMAJ10A-13-F is unidirectional and lacks symmetrical clamping behavior. For bidirectional protection (e.g., RS-485, USB D+/D−), the bidirectional variant SMAJ10CA-13-F must be used. Using the unidirectional part on AC-coupled or floating signal lines risks forward conduction and permanent damage during negative transients.
SMAJ10A-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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 23.5A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
SMAJ10A-13-F FAQ
1.How can I place an order for SMAJ10A-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ10A-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 SMAJ10A-13-F reliable?
The price and inventory of SMAJ10A-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 SMAJ10A-13-F is usually 5 days.
3.What payment methods are accepted for SMAJ10A-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ10A-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ10A-13-F?
SMAJ10A-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ10A-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 SMAJ10A-13-F?
For technical support, including SMAJ10A-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ10A-13-F requirements.
6.How does Aetrix verify that SMAJ10A-13-F is sourced from the original manufacturer or authorized distributors?
All SMAJ10A-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 SMAJ10A-13-F meets industry standards.
7.What is the process for return or replacement of SMAJ10A-13-F?
All SMAJ10A-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ10A-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 SMAJ10A-13-F part is unused and in its original packaging.
Return procedure for SMAJ10A-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ10A-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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