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onsemi SMF130AT1G
- Part No.:
- SMF130AT1G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SOD-123F
- Datasheet:
-
SMF130AT1G.pdf
- Description:
- TVS DIODE 130VWM 209VC SOD123FL
- Quantity:
- Payment:
- Shipping:
Inventory:5,061
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Product details
Overview
SMF130AT1G from onsemi is a unidirectional transient voltage suppressor (TVS) diode in SOD−123FL package, designed for overvoltage protection of DC power rails and signal lines. It features a 130 V working peak reverse voltage (VRWM), 209 A maximum peak pulse current (IPP), 209 V clamping voltage (VC) at IPP, <1 ns response time, and 175 W peak pulse power (10/1000 µs). It is used in industrial power supplies and telecom interface circuits to absorb ESD and lightning-induced surges.
For engineers reviewing the SMF130AT1G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, validated SOD−123FL terminal mapping, real-world protection use cases, and two confirmed alternative TVS diodes with documented differences in clamping behavior and surge rating.
Technical Context
The SMF130AT1G operates as a Zener-based unidirectional TVS, conducting only in reverse breakdown above VRWM = 130 V. Its clamping action limits transients to VC ≤ 209 V at IPP = 209 A under 10/1000 µs waveform, with low zener impedance ensuring stable voltage suppression during high-energy events.
It meets IEC61000−4−2 Level 4 (±16 kV contact, ±25 kV air) and IEC61000−4−4 (40 A, 5/50 ns) immunity standards. Thermal design relies on RθJA = 325°C/W with recommended FR-4 pad layout, supporting continuous operation from −55°C to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 130 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system rail voltage compatibility. |
| VBR (min) | 144 V @ IT = 1 mA - Guaranteed breakdown initiation threshold; ensures reliable turn-on above nominal rail. |
| VC (max) | 209 V @ IPP = 209 A - Absolute upper limit of suppressed voltage during worst-case 10/1000 µs surge; defines protected circuit stress. |
| IPP (max) | 209 A - Peak current the device safely clamps without failure; determines survivability against IEC61000−4−4 40 A surge with margin. |
| IR @ VRWM | 1 µA - Reverse leakage at rated standoff; negligible power loss and no measurable loading on 130 V DC systems. |
| Response Time | <1 ns - Enables suppression of fast-rising ESD transients before downstream ICs experience overstress. |
| ESD Rating | Class 3 HBM (>16 kV) - Validated human-body-model robustness for handling and board-level integration. |
Pinout & Package
SOD−123FL surface-mount package: 2-terminal, low-profile (max height 1.0 mm), footprint area 8.45 mm², cathode indicated by polarity band. RoHS-compliant matte tin lead finish; MSL 1 rated for reflow up to 260°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Transient Current Sink | Connected to protected line; conducts surge current to ground when voltage exceeds VRWM; polarity band identifies this terminal. |
| 2 (Anode) | Reference / Ground Return | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| Low Clamping Ratio | VC/VRWM = 1.61 - Tight ratio minimizes overvoltage stress on downstream 130 V-rated components during surge events. |
| High Surge Robustness | 175 W peak power (10/1000 µs) - Withstands repeated industrial-grade lightning surges per IEC61000−4−5. |
| Ultra-Fast Response | <1 ns turn-on - Captures sub-nanosecond ESD transients before propagation into sensitive analog or digital circuitry. |
| Small Footprint Protection | 8.45 mm² area - Enables TVS integration on space-constrained PCBs such as telecom line cards and PoE injectors. |
| ESD & EFT Hardened | IEC61000−4−2 Level 4 + IEC61000−4−4 40 A - Certified for harsh electromagnetic environments including factory automation and outdoor base stations. |
Applications
| Industrial Power Supply Input Protection | Telecom Line Interface Protection |
|---|---|
Use Scenario: 130 V DC input rail in DIN-rail mounted PLC power modules exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between input rail and chassis ground to shunt surge energy before it reaches DC/DC converter input stage. Use Value: Limits transient voltage to ≤209 V, preventing damage to 200 V-rated input capacitors and MOSFETs while maintaining system uptime. |
Use Scenario: RS-485 data lines in outdoor cellular backhaul equipment subjected to induced lightning surges on long cable runs. IC Role / Device Role / Timing Role: Line-side TVS on differential pair, referenced to local ground, absorbing common-mode surges before transceiver inputs. Use Value: Clamps 40 A EFT bursts within 1 ns, preserving signal integrity and avoiding false triggering or latch-up in isolated RS-485 transceivers. |
| Automotive Body Control Module (BCM) Power Rail | Medical Equipment AC/DC Adapter Input |
Use Scenario: 130 V auxiliary supply derived from 48 V battery architecture in next-gen BCMs, requiring ISO 7637-2 Pulse 1/2b compliance. IC Role / Device Role / Timing Role: Primary overvoltage clamp on switched 130 V rail feeding microcontroller and CAN transceivers. Use Value: Absorbs 175 W pulses without degradation, enabling single-device protection instead of stacked TVS arrays-reducing BOM count and layout area. |
Use Scenario: Input stage of Class II medical AC/DC adapter where leakage current must remain below 100 µA per IEC 60601-1. IC Role / Device Role / Timing Role: Standoff-rated TVS across bulk capacitor input to suppress mains-borne surges without increasing earth leakage. Use Value: Delivers 1 µA IR at 130 V, meeting stringent patient-isolation leakage requirements while providing 209 V clamping during 10/1000 µs transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ130A | DO-214AA package; higher PPK = 600 W (10/1000 µs); VC = 214 V @ 200 A; larger footprint (29.5 mm²). | Better suited for higher-energy surges but requires more PCB area and has 5 V higher clamping voltage. | Select SMBJ130A when system-level surge testing exceeds 175 W or when thermal mass demands larger package. |
| 1.5SMC130A | DO-214AB package; PPK = 1500 W (10/1000 µs); VC = 219 V @ 68.7 A; significantly larger (45.4 mm²) and higher leakage (5 µA). | Targeted at heavy industrial environments with repetitive high-energy threats; not suitable for space-constrained or ultra-low-leakage designs. | Choose 1.5SMC130A only if legacy DO-214AB footprint is fixed and surge test levels mandate >175 W rating. |
Compared with SMBJ130A and 1.5SMC130A, SMF130AT1G offers optimal balance of compact SOD−123FL size, 175 W surge capability, and 1 µA leakage-making it preferred for modern high-density power electronics where board space and efficiency are critical.
Availability
SMF130AT1G is available at Aetrix Electronics and suitable for industrial power supplies, telecom line interfaces, automotive body control modules, and medical AC/DC adapters requiring stable component supply and long-term lifecycle support.
Supply support for SMF130AT1G 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, sensor, and logic solutions for automotive, industrial, cloud computing, and consumer markets.
The SMF series belongs to onsemi's transient voltage suppressor product line, engineered specifically for compact, high-reliability overvoltage protection in space-constrained and thermally demanding applications.
FAQ
What is the maximum clamping voltage of SMF130AT1G under standard surge conditions?
The SMF130AT1G has a maximum clamping voltage (VC) of 209 V when subjected to its rated peak pulse current (IPP) of 209 A under the 10/1000 µs waveform. This value is guaranteed across temperature and represents the highest voltage the protected circuit will experience during a full-rated surge event. The clamping performance is validated per Figure 2 in the official onsemi datasheet for SMF5.0AT1 Series.
Is SMF130AT1G unidirectional or bidirectional, and how does that affect its circuit placement?
SMF130AT1G is a unidirectional TVS diode, meaning it conducts only in reverse bias above VRWM = 130 V and blocks forward current like a standard diode. It must be placed with cathode toward the protected line and anode to ground (or low-impedance reference). This configuration prevents forward conduction during normal operation while enabling precise clamping of negative-going transients on positive rails.
Does SMF130AT1G meet IEC61000−4−2 and IEC61000−4−4 immunity standards?
Yes, SMF130AT1G is rated for IEC61000−4−2 Level 4 ESD protection (>16 kV contact discharge) and IEC61000−4−4 Electrical Fast Transient (EFT) immunity (40 A, 5/50 ns). These ratings are explicitly stated in the "Specification Features" section of the onsemi SMF5.0AT1 Series datasheet and apply directly to the SMF130AT1G variant as part of the family.
What is the thermal resistance and power derating behavior of SMF130AT1G?
SMF130AT1G has a junction-to-ambient thermal resistance (RθJA) of 325°C/W when mounted on the recommended FR-4 footprint. Its DC power dissipation is 385 mW at TA = 25°C, derating linearly to zero at +150°C. For pulsed operation, peak power remains 175 W (10/1000 µs) up to +125°C ambient, per the pulse derating curve in Figure 4 of the datasheet.
Can SMF130AT1G be used in place of SMF130A, and what does the 'T1G' suffix indicate?
Yes, SMF130AT1G is the RoHS-compliant, halogen-free, matte-tin-plated version of SMF130A, with identical electrical specifications and SOD−123FL packaging. The 'T1G' suffix denotes tape-and-reel packaging (3,000 units/reel), Pb-free construction, and compliance with JESD97 stress-test standards-making it the current production version superseding older non-G variants.
SMF130AT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SOD-123F
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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
SMF130AT1G FAQ
1.How can I place an order for SMF130AT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF130AT1G 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 SMF130AT1G reliable?
The price and inventory of SMF130AT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF130AT1G is usually 5 days.
3.What payment methods are accepted for SMF130AT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF130AT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF130AT1G?
SMF130AT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF130AT1G 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 SMF130AT1G?
For technical support, including SMF130AT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF130AT1G requirements.
6.How does Aetrix verify that SMF130AT1G is sourced from the original manufacturer or authorized distributors?
All SMF130AT1G 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 SMF130AT1G meets industry standards.
7.What is the process for return or replacement of SMF130AT1G?
All SMF130AT1G units undergo pre-shipment inspection (PSI). If there is an issue with SMF130AT1G, 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 SMF130AT1G part is unused and in its original packaging.
Return procedure for SMF130AT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF130AT1G Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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