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Diodes Incorporated SMAJ160A-13-F
- Part No.:
- SMAJ160A-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ160A-13-F.pdf
- Description:
- TVS DIODE 160VWM 259VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:6,500
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Product details
Overview
SMAJ160A-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 160V reverse standoff voltage (VRWM), 178–197V breakdown range (VBR), 259V maximum clamping voltage (VC) at 1.5A peak pulse current (IPP), and SMA package with cathode band polarity marking.
For engineers reviewing the SMAJ160A-13-F datasheet, SMAJ160A-13-F pinout, SMAJ160A-13-F application, or SMAJ160A-13-F equivalent, key selection criteria include clamping voltage margin relative to system rail, 8.3ms surge current handling (IFSM = 40A), thermal derating above +25°C, and compatibility with automated SMT assembly under J-STD-020 Level 1 moisture sensitivity.
Technical Context
This TVS operates as a clamping device triggered by reverse-biased avalanche breakdown above VRWM. Its glass-passivated die ensures stable VBR tolerance (±5% typical) and low leakage (<5µA at VRWM), while fast response time (<1.0ps) enables suppression of ESD and lightning-induced transients before downstream ICs are damaged.
The device complies with IEC 61000-4-2 (ESD) and IEC 61000-4-5 (surge) immunity standards when used with appropriate series impedance. Its 1.0W steady-state power rating at TL = +75°C supports continuous operation in thermally constrained PCB layouts without active cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400W - sustains single 8.3ms half-sine surges up to 1.5A without failure |
| Reverse Standoff Voltage | 160V - maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage | 178–197V - guaranteed avalanche conduction onset range at 1.0mA test current |
| Clamping Voltage | 259V @ IPP = 1.5A - maximum voltage seen by protected circuit during specified surge |
| Leakage Current | <5µA @ VRWM - negligible standby power loss and minimal loading on source |
| Package | SMA - industry-standard surface-mount outline (4.0–4.6mm length, 2.29–2.92mm width) |
| Operating Temp | −55°C to +150°C - qualified for automotive under-hood and industrial control environments |
Pinout & Package
Package: SMA (Surface Mount Axial), molded plastic case per UL 94V-0, 0.064g mass, cathode band marking for unidirectional polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node in clamping configuration |
| Cathode | High-side surge input terminal | Connected to protected line; avalanche conduction occurs from cathode to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 400W Peak Pulse Power | Enables robust protection against IEC 61000-4-5 Level 4 (4kV/2Ω) surges on 24–48V industrial buses |
| Glass Passivated Die | Ensures long-term VBR stability and resistance to humidity-induced parameter drift |
| Lead-Free & RoHS 3 Compliant | Meets global environmental regulations without compromising solderability or thermal cycling reliability |
| Moisture Sensitivity Level 1 | Eliminates bake requirements prior to reflow, reducing manufacturing cost and process complexity |
| Fast Response Time | Sub-nanosecond turn-on limits voltage overshoot during ESD events (IEC 61000-4-2 ±8kV contact) |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module |
|---|---|
Use Scenario: 24V DC sensor inputs in programmable logic controllers exposed to inductive switching transients and field wiring faults. IC Role / Device Role / Timing Role: Primary clamping element placed directly at connector entry point to limit voltage to ≤259V during 1.5A surge events. Use Value: Prevents damage to downstream analog front-end amplifiers and microcontroller GPIOs rated for 36V absolute maximum. | Use Scenario: LIN bus and 12V auxiliary power lines in body control modules subject to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Unidirectional TVS connected between supply rail and chassis ground to clamp positive-going transients only. Use Value: Maintains <5µA leakage at 13.5V nominal battery voltage, avoiding parasitic drain in always-on circuits. |
| Telecom Power Feeds | Renewable Energy Monitoring |
Use Scenario: −48V DC power distribution in telecom base station cabinets where lightning-induced surges propagate along feed lines. IC Role / Device Role / Timing Role: Reverse-connected across supply rails to clamp negative transients to safe levels before reaching DC/DC converters. Use Value: 259V clamping voltage provides >100V margin above −48V rail, ensuring converter input remains within 60V absolute max rating. | Use Scenario: Voltage monitoring inputs on solar charge controllers interfacing with 150V PV string outputs. IC Role / Device Role / Timing Role: Standoff-rated TVS placed ahead of precision voltage dividers to prevent overvoltage saturation of ADC reference paths. Use Value: 160V VRWM aligns with 150V nominal string voltage, allowing normal operation while clamping fault transients to 259V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ160A-TP from Microchip | Same 160V VRWM, 259V VC, but rated for 1.0W PM(AV) at TL = +70°C (vs. +75°C for Diodes part) | Marginally lower thermal headroom in high-ambient designs; identical surge capability | Select if sourcing from Microchip-dedicated supply chain or requiring same-spec alternative with different traceability |
| SMLJ160A from Littelfuse | Higher 600W PPK rating, same VRWM/VC, but larger SMB package (5.2mm × 4.5mm vs. SMA 4.6mm × 2.9mm) | Requires PCB layout change; preferred where higher surge margin justifies added board area | Choose when system-level testing requires >400W surge margin or existing designs use SMB footprint |
Compared with SMAJ160A-TP and SMLJ160A, the SMAJ160A-13-F offers optimal balance of compact SMA footprint, 400W surge rating, and +75°C thermal derating-making it ideal for space-constrained industrial and automotive modules where board real estate and thermal management are tightly coupled.
Availability
SMAJ160A-13-F is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive body control modules, and telecom power feed applications requiring stable component supply, consistent parametric performance, and full RoHS 3 compliance.
Supply support for SMAJ160A-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 predictable clamping behavior and long-term parameter stability are critical.
FAQ
What is the maximum clamping voltage of SMAJ160A-13-F at its rated peak pulse current?
The maximum clamping voltage (VC) is 259V at a peak pulse current (IPP) of 1.5A, measured using the 10/1000μs double-exponential waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range (−55°C to +150°C) and defines the upper voltage limit imposed on protected circuits during surge events.
Is SMAJ160A-13-F suitable for bidirectional signal line protection?
No - SMAJ160A-13-F is unidirectional, indicated by the absence of "C" in the part number. It conducts only during positive transients on the cathode terminal relative to anode. For bidirectional protection (e.g., data lines), the equivalent part is SMAJ160CA-13-F, which has symmetrical clamping in both polarities and no cathode band marking.
How does the SMA package affect thermal performance in high-density PCB layouts?
The SMA package delivers 1.0W steady-state power dissipation at lead temperature (TL) of +75°C, with derating to zero at +150°C. Its low thermal resistance (junction-to-lead ≈ 100°C/W) allows effective heat transfer to copper pours via soldered leads, but requires ≥10mm² of 1oz copper connected to both terminals to maintain rated power in sustained fault conditions.
Does SMAJ160A-13-F meet AEC-Q101 qualification for automotive use?
No - the standard SMAJ160A-13-F is not AEC-Q101 qualified. Diodes offers the automotive-grade variant SMAJ160AQ-13-F, which undergoes additional stress testing (including HTGB, AC/H3TRB, and temperature cycling) and is manufactured in IATF 16949-certified facilities. Use the "Q" suffix version for safety-critical automotive applications.
SMAJ160A-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AC, SMA
- Series:
- SMAJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 160V
- Voltage - Breakdown (Min):
- 178V
- Voltage - Clamping (Max) @ Ipp:
- 259V
- Current - Peak Pulse (10/1000µs):
- 1.5A
- 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
SMAJ160A-13-F FAQ
1.How can I place an order for SMAJ160A-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ160A-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 SMAJ160A-13-F reliable?
The price and inventory of SMAJ160A-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 SMAJ160A-13-F is usually 5 days.
3.What payment methods are accepted for SMAJ160A-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ160A-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ160A-13-F?
SMAJ160A-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ160A-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 SMAJ160A-13-F?
For technical support, including SMAJ160A-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ160A-13-F requirements.
6.How does Aetrix verify that SMAJ160A-13-F is sourced from the original manufacturer or authorized distributors?
All SMAJ160A-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 SMAJ160A-13-F meets industry standards.
7.What is the process for return or replacement of SMAJ160A-13-F?
All SMAJ160A-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ160A-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 SMAJ160A-13-F part is unused and in its original packaging.
Return procedure for SMAJ160A-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ160A-13-F Tags
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ESD9B5.0ST5G
onsemi
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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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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Diodes Incorporated
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