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onsemi 1SMB130AT3G
- Part No.:
- 1SMB130AT3G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
1SMB130AT3G.pdf
- Description:
- TVS DIODE 130VWM 209VC 425TEPBGA
- Quantity:
- Payment:
- Shipping:
Inventory:22,331
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Product details
Overview
1SMB130AT3G from onsemi is a unidirectional 600 W peak power Zener transient voltage suppressor (TVS) designed for overvoltage protection in DC power rails and signal lines. It features a 130 V working peak reverse voltage (VRWM), 159 V minimum breakdown voltage (VBR) at 1 mA, clamps to ≤209 V at 2.9 A peak pulse current (IPP), and delivers sub-1 ns response time with <5 µA leakage above VRWM. It is widely deployed in industrial power supplies and automotive control modules where robust surge immunity per IEC 61000-4-5 is required.
For engineers reviewing the 1SMB130AT3G datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, thermal derating at elevated ambient temperatures, UL 497B recognition for isolated loop circuits, and SMB package compatibility with high-density PCB layouts.
Technical Context
This device operates as a unidirectional Zener-based TVS diode, leveraging avalanche breakdown to clamp transients while maintaining low leakage (<5 µA @ 130 V) in steady state. Its 600 W peak power rating is defined for a 10/1000 µs waveform at TL = 25 °C, with thermal derating applied above 75 °C junction temperature using RJL = 25 °C/W.
The SMB (Case 403A) surface-mount package enables compact placement near I/O connectors or power entry points, and its modified L-bend leads ensure reliable solder joint formation. Polarity is marked by a cathode band, and the device is Pb-free, AEC-Q101 qualified, and UL 497B recognized for isolated loop circuit protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 130 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system DC bus or signal rail voltage tolerance. |
| VBR (min) | 151.5 V @ 1 mA - Guaranteed avalanche initiation threshold; ensures predictable turn-on without premature conduction. |
| VC @ IPP | 209 V @ 2.9 A - Clamped voltage during 10/1000 µs surge; must remain below protected IC's absolute max rating. |
| PPK | 600 W @ 1 ms - Peak transient energy absorption capability; defines survivability against IEC 61000-4-5 Level 4 surges. |
| Response Time | <1.0 ns - Enables suppression of fast-rising ESD and lightning-induced transients before downstream components are stressed. |
| Leakage Current | <5.0 µA @ 130 V - Negligible standby power loss and minimal impact on high-impedance bias networks. |
| Capacitance | 150 pF @ 0 V - Low enough for <10 MHz signal integrity preservation; suitable for RS-485, CAN, and DC power line protection. |
Pinout & Package
Package: SMB (Case 403A), surface-mount, Pb-free, void-free thermosetting plastic with cathode polarity band. Dimensions: 4.32 mm × 3.56 mm × 2.20 mm (L × W × H); thermal resistance junction-to-lead = 25 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction; grounded or connected to low-impedance return path in unidirectional configuration | Provides low-VF path for fault current during positive transients when cathode is biased above anode. |
| Cathode | High-side connection point; tied to protected line (e.g., +12 V rail or CAN_H) | Defines clamping reference; voltage at cathode rises no higher than VC during surge, protecting downstream loads. |
Key Features
| Feature | Design Value |
|---|---|
| UL 497B Recognition | Qualified for isolated loop circuit protection-enables use in telecom, industrial Ethernet, and safety-critical sensor interfaces without additional certification burden. |
| AEC-Q101 Qualification | Validated for automotive underhood and body electronics-supports deployment in engine control units, lighting modules, and ADAS power domains. |
| ESD Robustness | Class 3 (>16 kV HBM)-ensures resilience against handling and system-level ESD events without parameter shift or failure. |
| Low Clamping Ratio | VC/VBR ≈ 1.38-tight margin between breakdown and clamping improves design headroom versus competing 600 W TVS devices. |
| SURMETIC® Packaging | ON Semiconductor's proprietary molded plastic-delivers superior moisture resistance, mechanical reliability, and solderability vs. standard SMB. |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
|
Use Scenario: Protecting 13.5–16 V DC input stage of programmable logic controller (PLC) power supply against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND, acting as crowbar during >150 V transients. Use Value: Limits voltage to ≤209 V for <1 ms, preventing damage to upstream rectifier and downstream buck controller ICs rated to 220 V abs max. |
Use Scenario: Safeguarding LIN bus transceiver power pins against battery reversal and jump-start surges in door module ECUs. IC Role / Device Role / Timing Role: Standby protection element connected across VBAT and GND, conducting only during overvoltage events. Use Value: Withstands 600 W peak surges while adding <5 µA leakage-preserves sleep current budget and avoids false wake-up triggers. |
| Medical Equipment Input Stage | Telecom Isolated Data Interface |
|
Use Scenario: Shielding AC/DC adapter output of patient monitor from induced surges during defibrillation or ESD discharge. IC Role / Device Role / Timing Role: Final-stage overvoltage clamp on regulated 12 V output rail feeding analog front-end and display subsystems. Use Value: UL 497B recognition validates compliance for medical-grade isolated power paths; clamping occurs within 1 ns to prevent latch-up in precision ADCs. |
Use Scenario: Protecting RS-485 transceiver VCC pin in base station backhaul equipment exposed to lightning-induced ground potential rise. IC Role / Device Role / Timing Role: Localized TVS mounted directly at connector footprint, shunting surge energy before entering isolation barrier. Use Value: 150 pF capacitance avoids signal edge degradation on 10 Mbps links; 209 V clamping preserves transceiver's 250 V abs max rating with 20 % margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SZ1SMB130AT3G | Identical electrical specs; AEC-Q101 certified with PPAP documentation support and automotive-specific traceability. | Required for Tier 1 automotive production; not necessary for industrial or medical non-automotive use. | Select SZ1SMB130AT3G when automotive qualification and change control are mandated by OEM requirements. |
| SMCJ130A | Same VRWM and VC, but SMC package (7.11 mm × 6.22 mm); 1500 W peak power rating; higher thermal mass. | Better suited for high-energy surges (e.g., 10/1000 µs, 100 A) where 600 W is insufficient; requires larger PCB area. | Choose SMCJ130A only if system-level surge testing exceeds 600 W capability or board layout allows SMC footprint. |
Compared with 1SMB130AT3G, SZ1SMB130AT3G adds automotive process controls without altering performance, while SMCJ130A trades compact SMB size for higher surge capacity and thermal inertia-making it appropriate only when 1SMB130AT3G's 600 W rating is inadequate.
Availability
1SMB130AT3G is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and medical device input stages requiring stable component supply, long-term lifecycle assurance, and full traceability.
Supply support for 1SMB130AT3G 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 silicon and SiC solutions for automotive, industrial, cloud, and IoT applications.
The 1SMB130AT3G belongs to the SMB-series unidirectional TVS family, engineered specifically for cost-sensitive, high-reliability overvoltage protection in space-constrained surface-mount designs across automotive, industrial, and medical end equipment.
FAQ
What is the clamping voltage of the 1SMB130AT3G at its rated peak pulse current?
The 1SMB130AT3G clamps to a maximum of 209 V at its specified peak pulse current (IPP) of 2.9 A, measured under the standard 10/1000 µs double-exponential waveform. This value is guaranteed across temperature and process variation per the datasheet's Electrical Characteristics table, and defines the upper voltage limit imposed on protected circuits during surge events. Designers must verify that this clamping voltage remains below the absolute maximum rating of downstream components.
Is the 1SMB130AT3G suitable for bidirectional signal line protection?
No, the 1SMB130AT3G is a unidirectional TVS diode and conducts only during reverse-biased overvoltage events-it does not protect against negative-going transients on the same line. For bidirectional protection (e.g., RS-485, USB, or CAN), a dedicated bidirectional part such as 1SMB130AT3 or SMDA130T1G must be used. Using 1SMB130AT3G on AC-coupled or bipolar signal lines risks permanent damage due to forward conduction during negative excursions.
Does the 1SMB130AT3G meet automotive qualification standards?
The standard 1SMB130AT3G is not AEC-Q101 qualified; however, its automotive-grade variant SZ1SMB130AT3G is fully AEC-Q101 qualified and PPAP capable. Both share identical electrical parameters and SMB package dimensions, but SZ1SMB130AT3G includes enhanced process controls, lot traceability, and automotive-specific reliability testing. For production automotive applications, SZ1SMB130AT3G-not 1SMB130AT3G-is the compliant choice.
What is the maximum allowable junction temperature for continuous operation of the 1SMB130AT3G?
The 1SMB130AT3G has an operating junction temperature range of −65 °C to +150 °C. For continuous DC power dissipation, derating begins at TA = 25 °C, with PD = 0.55 W at 25 °C and linear reduction of 4.4 mW/°C above that point. At 75 °C ambient, maximum DC power drops to 3.0 W only when measured with zero lead length-practical PCB layouts require thermal modeling to ensure TJ stays within limits under worst-case airflow and copper area conditions.
How does the UL 497B recognition benefit system-level certification of equipment using the 1SMB130AT3G?
UL 497B recognition confirms the 1SMB130AT3G meets stringent requirements for protectors in isolated loop circuits-including strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge testing. When incorporated into end equipment, this recognition reduces the burden of system-level safety certification by validating the TVS's suitability for telecom, industrial control, and medical isolation barriers-eliminating need for redundant component-level testing during final product listing.
1SMB130AT3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-214AA, SMB
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- 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):
- 2.9A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- 150pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
1SMB130AT3G FAQ
1.How can I place an order for 1SMB130AT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1SMB130AT3G 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 1SMB130AT3G reliable?
The price and inventory of 1SMB130AT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1SMB130AT3G is usually 5 days.
3.What payment methods are accepted for 1SMB130AT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1SMB130AT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1SMB130AT3G?
1SMB130AT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1SMB130AT3G 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 1SMB130AT3G?
For technical support, including 1SMB130AT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1SMB130AT3G requirements.
6.How does Aetrix verify that 1SMB130AT3G is sourced from the original manufacturer or authorized distributors?
All 1SMB130AT3G 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 1SMB130AT3G meets industry standards.
7.What is the process for return or replacement of 1SMB130AT3G?
All 1SMB130AT3G units undergo pre-shipment inspection (PSI). If there is an issue with 1SMB130AT3G, 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 1SMB130AT3G part is unused and in its original packaging.
Return procedure for 1SMB130AT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1SMB130AT3G Tags
-
ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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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.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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