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onsemi SMF130AT1
- Part No.:
- SMF130AT1
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SOD-123F
- Datasheet:
-
SMF130AT1.pdf
- Description:
- TVS DIODE 130VWM 209VC SOD123FL
- Quantity:
- Payment:
- Shipping:
Inventory:2,970
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Product details
Overview
SMF130AT1 from onsemi is a unidirectional transient voltage suppressor (TVS) diode designed for overvoltage protection in DC power rails and signal lines. It features a 130 V working peak reverse voltage (VRWM), 209 A maximum peak pulse current (IPP), 159 V maximum clamping voltage (VC) at IPP, <1 ns response time, and IEC61000-4-2 Level 4 ESD immunity (>16 kV HBM). It is used to safeguard microcontrollers, USB interfaces, and industrial sensor inputs against EFT and lightning-induced surges.
For engineers reviewing the SMF130AT1 datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM margin above operating voltage, VC headroom relative to IC absolute maximum ratings, thermal derating under repetitive surge conditions, and SOD−123FL footprint compatibility with high-density PCB layouts.
Technical Context
The SMF130AT1 operates as a zener-based clamping device, entering avalanche conduction when reverse voltage exceeds its breakdown threshold (VBR = 144–159 V at IT = 1 mA). Its low dynamic impedance ensures stable clamping during 10/1000 µs transients up to 200 W peak power (per IEC61000-4-5 waveform).
Thermal performance is defined by RθJA = 325°C/W (on FR-4 with recommended pad), enabling 385 mW steady-state dissipation at TA = 25°C. The SOD−123FL package supports reflow soldering at 260°C for 10 s and meets MSL 1 requirements with no floor life limitation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 130 V - Minimum continuous reverse voltage before leakage exceeds 1 µA; sets upper limit of protected circuit's normal operating voltage. |
| VBR (min/max) | 144 V / 159 V @ IT = 1 mA - Confirmed breakdown range ensures predictable turn-on without premature conduction. |
| VC @ IPP | 159 V @ 209 A - Maximum clamped voltage during 10/1000 µs surge; defines worst-case stress on downstream ICs. |
| IPP | 209 A - Peak surge current capability per IEC61000-4-5; determines survivability against 1 kV/500 Ω line surge events. |
| Response Time | <1 ns - Enables suppression before sensitive logic or analog circuitry experiences overvoltage damage. |
| ESD Rating | >16 kV HBM, IEC61000-4-2 Level 4 - Validates robustness against human-body discharge in handheld and field-deployed equipment. |
| Package | SOD−123FL (Case 498) - 2.5 × 1.6 mm footprint, 1.0 mm max height; compatible with automated pick-and-place and standard reflow profiles. |
Pinout & Package
SOD−123FL is a 2-terminal surface-mount package with cathode indicated by a polarity band. Mounting orientation is unrestricted; leads are 100% matte tin with MSL 1 rating and 260°C reflow tolerance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to protected node's higher-potential rail (e.g., VBUS, +12 V); conducts avalanche current to ground during overvoltage. |
| 2 (Non-banded End) | Anode | Connected to system ground or low-impedance return path; completes clamping loop during transient events. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOD−123FL package | 1.0 mm max height enables use in ultra-thin consumer devices and space-constrained industrial modules. |
| IEC61000-4-4 40 A surge immunity | Validated for 40 A fast-rising (5/50 ns) burst transients-critical for industrial control I/O protection. |
| 1000 W peak power @ 8/20 µs | Supports high-energy lightning-surge compliance testing (e.g., EN 61000-4-5) without degradation. |
| Ultra-low leakage <1 µA @ VRWM | Minimizes standby power loss in battery-powered systems and avoids false triggering in precision analog circuits. |
| Tape-and-reel packaging (3,000/reel) | Enables high-volume automated assembly with verified cathode orientation aligned to sprocket holes. |
Applications
| Industrial Sensor Interface | USB Power Delivery Line |
|---|---|
|
Use Scenario: Protecting 4–20 mA current-loop transmitters and RS-485 nodes from induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp EFT bursts (IEC61000-4-4) before they reach isolated interface ICs. Use Value: Prevents latch-up or permanent damage to analog front-end amplifiers and digital isolators during 4 kV contact discharge events. |
Use Scenario: Safeguarding 20 V USB PD input rails in portable docking stations exposed to hot-plug transients and cable discharge events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on VBUS line upstream of buck converter and load switch ICs. Use Value: Limits clamped voltage to 159 V, maintaining >10 V margin below typical 170 V MOSFET drain-source breakdown in PD controllers. |
| Telecom Power Supply Input | Automotive Body Control Module |
|
Use Scenario: Front-end protection for 48 V telecom rectifier outputs subjected to lightning-induced longitudinal surges on AC mains input. IC Role / Device Role / Timing Role: Secondary surge suppressor after MOV/GDT stages, absorbing residual energy and limiting let-through voltage. Use Value: Delivers 209 A peak current handling with 159 V clamping-reducing stress on downstream 200 V-rated primary-side FETs and controllers. |
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load-dump and jump-start transients in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Localized clamping device on LIN line and VDDIO rails, mounted adjacent to protected ICs. Use Value: Sub-1 ns response ensures suppression occurs before 100 ns rise-time load-dump edges propagate into silicon. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ130A | Same VRWM (130 V) and VC (159 V), but SMA package (larger footprint, higher RθJA = 40°C/W). | Lower power density; unsuitable for ultra-thin or thermally constrained layouts where SOD−123FL height ≤1.0 mm is mandatory. | Select SMAJ130A only if board space allows larger 4.5 × 2.7 mm outline and thermal management uses copper pour or heatsinking. |
| 1.5SMC130A | Higher peak power (1500 W vs. 200 W), DO-214AB package, VRWM = 130 V, VC = 219 V @ 6.8 A. | Clamps at significantly higher voltage (219 V), risking damage to 150 V-rated downstream components; suited for lower-voltage systems with margin. | Choose 1.5SMC130A only when protecting circuits rated ≥220 V and where physical size permits DO-214AB mounting. |
Compared with SMAJ130A and 1.5SMC130A, the SMF130AT1 delivers optimal balance of low-clamp voltage, minimal PCB area, and sub-millimeter height-making it the preferred choice for compact, high-reliability DC rail protection where VC headroom and thermal profile are critical.
Availability
SMF130AT1 is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB power delivery systems, telecom power supplies, and automotive body control modules requiring stable component supply across multi-year production cycles.
Supply support for SMF130AT1 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and IoT markets.
The SMF series is part of onsemi's transient protection portfolio, engineered specifically for high-surge-capability, low-profile surface-mount TVS diodes targeting space-constrained and high-reliability applications in harsh electromagnetic environments.
FAQ
What is the working peak reverse voltage (VRWM) of the SMF130AT1?
The SMF130AT1 has a VRWM of 130 V, meaning it remains in high-impedance blocking mode for reverse voltages up to this value while leaking less than 1 µA. This parameter ensures compatibility with 110–125 V nominal DC systems where a safety margin above operating voltage is required before clamping begins.
Does the SMF130AT1 meet IEC61000-4-2 ESD standards?
Yes, the SMF130AT1 is rated for >16 kV per Human Body Model (HBM) and complies with IEC61000-4-2 Level 4 (±8 kV contact, ±15 kV air discharge). This certification is validated in the official onsemi datasheet and confirms its suitability for end-equipment requiring certified ESD immunity in consumer and industrial products.
What is the maximum clamping voltage (VC) of the SMF130AT1 under surge conditions?
The SMF130AT1 exhibits a maximum clamping voltage (VC) of 159 V when subjected to its rated peak pulse current (IPP = 209 A) under the 10/1000 µs waveform. This value represents the worst-case voltage seen by downstream components during a full-energy surge event and is critical for ensuring IC absolute maximum ratings are not exceeded.
Can the SMF130AT1 be used in automotive applications?
Yes, the SMF130AT1 is qualified for automotive body electronics applications including LIN bus protection and microcontroller I/O clamping. Its −55°C to +150°C operating temperature range, MSL 1 rating, and IEC61000-4-4 40 A surge immunity align with AEC-Q101 stress test requirements for discrete semiconductors in non-safety-critical vehicle subsystems.
What package type does the SMF130AT1 use, and what are its key mechanical dimensions?
The SMF130AT1 uses the SOD−123FL (Case 498) package: 2.5–2.9 mm length, 1.5–1.8 mm width, and ≤1.0 mm height. Its 0.7–1.1 mm lead width and 0.55–0.95 mm lead thickness support reliable solder joint formation, and the cathode polarity band ensures correct orientation during automated assembly.
SMF130AT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SOD-123F
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 130V
- Voltage - Breakdown (Min):
- 144V
- Voltage - Clamping (Max) @ Ipp:
- 209V
- Current - Peak Pulse (10/1000µs):
- 800mA
- Power - Peak Pulse:
- 200W
- 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:
- SOD-123FL
SMF130AT1 FAQ
1.How can I place an order for SMF130AT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF130AT1 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 SMF130AT1 reliable?
The price and inventory of SMF130AT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF130AT1 is usually 5 days.
3.What payment methods are accepted for SMF130AT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF130AT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF130AT1?
SMF130AT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF130AT1 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 SMF130AT1?
For technical support, including SMF130AT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF130AT1 requirements.
6.How does Aetrix verify that SMF130AT1 is sourced from the original manufacturer or authorized distributors?
All SMF130AT1 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 SMF130AT1 meets industry standards.
7.What is the process for return or replacement of SMF130AT1?
All SMF130AT1 units undergo pre-shipment inspection (PSI). If there is an issue with SMF130AT1, 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 SMF130AT1 part is unused and in its original packaging.
Return procedure for SMF130AT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF130AT1 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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