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STMicroelectronics SMB6F130A
- Part No.:
- SMB6F130A
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-221AA, SMB Flat Leads
- Datasheet:
-
SMB6F130A.pdf
- Description:
- TVS DIODE 130VWM 209VC SMBFLAT
- Quantity:
- Payment:
- Shipping:
Inventory:6,763
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Product details
Overview
SMB6F130A from STMicroelectronics is a unidirectional 600 W transient voltage suppression (TVS) diode designed for surge protection in DC power lines and signal interfaces. It features a standoff voltage (VRM) of 130 V, clamping voltage (VCL) of 209 V at 3 A (10/1000 µs), dynamic resistance (RD) of 7 Ω, and operates up to 175 °C junction temperature - deployed in industrial power supplies and telecom interface circuits.
For engineers reviewing the SMB6F130A datasheet, SMB6F130A pinout, SMB6F130A application, or SMB6F130A equivalent, key selection criteria include clamping performance at rated surge current, low leakage (<0.2 µA @ 25 °C), flat SMB package thermal robustness, and IEC 61000-4-2/4-4 compliance for ESD and EFT immunity validation.
Technical Context
This TVS diode uses planar silicon technology to achieve low leakage current and high junction temperature capability (Tj max = 175 °C), enabling long-term reliability in thermally constrained environments. Its unidirectional configuration provides asymmetric clamping with forward conduction only during negative transients.
The device delivers 600 W peak pulse power (10/1000 µs) at 25 °C and sustains up to 470 W under worst-case thermal conditions (Tj = 175 °C). Clamping voltage rises linearly with surge current via defined dynamic resistance (RD = 7 Ω), allowing predictable overvoltage limiting in protected circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 130 V - Maximum continuous reverse operating voltage before breakdown |
| Clamping Voltage (VCL) | 209 V at 3 A (10/1000 µs) - Peak voltage seen by protected circuit during surge |
| Peak Pulse Power (PPP) | 600 W (10/1000 µs) - Surge energy handling capacity at 25 °C ambient |
| Leakage Current (IRM) | 0.2 µA @ 25 °C - Minimal DC loading on high-impedance source lines |
| Dynamic Resistance (RD) | 7 Ω - Slope of VCL vs. IPP curve; determines voltage rise per amp of surge current |
| Junction Temperature Range | –55 °C to +175 °C - Enables operation in automotive engine bays and industrial motor drives |
| ESD Withstand | ±30 kV (air/contact, IEC 61000-4-2) - Full Level 4 immunity without external shielding |
Pinout & Package
The SMB6F130A is housed in an SMB Flat package (JEDEC DO-214AA), measuring 3.95 mm × 5.60 mm × 1.10 mm with matte tin-plated leads. Its compact, low-profile form factor supports high-density PCB layouts and automated reflow assembly per J-STD-020 MSL level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked band) | Surge current sink node | Connected to protected line; conducts during positive transients above VRM |
| Anode | Reference/return path | Typically tied to system ground or lower-potential rail; completes clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| Flat 1 mm profile | Enables use in space-constrained modules such as PoE injectors and DIN-rail PLCs |
| Low leakage (0.2 µA @ 25 °C) | Preserves battery life and avoids false triggering in high-impedance sensor interfaces |
| High Tj rating (175 °C) | Eliminates derating in enclosed enclosures or near heat-generating components |
| IEC 61000-4-4 Level 4 compliance | Withstands 4 kV EFT bursts without degradation - suitable for industrial control cabinets |
| Planar silicon construction | Delivers stable VBR and RD over lifetime, critical for field-deployed infrastructure |
Applications
| Industrial Power Supply Input Protection | Telecom Line Interface Protection |
|---|---|
Use Scenario: DC input stage of 48 V telecom rectifiers exposed to lightning-induced surges on distribution lines. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across input rails to clamp differential-mode transients before DC-DC converter. Use Value: Limits voltage to ≤209 V during 3 A surge, preventing MOSFET gate oxide failure and maintaining downstream regulation integrity. | Use Scenario: RS-485 data lines in outdoor base stations subject to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Line-side TVS on A/B bus pairs to suppress common-mode transients while preserving signal integrity. Use Value: Low capacitance (<100 pF at 10 V) avoids signal edge degradation; ±30 kV ESD rating ensures field-reliability without additional filtering. |
| Automotive Body Control Module (BCM) | Smart Meter AC/DC Power Entry |
Use Scenario: 12 V supply rail in BCM units subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary clamping device on main power input, coordinated with upstream fuse and LC filter. Use Value: Sustains 470 W surge power at 175 °C junction temperature, avoiding thermal runaway during repeated load-dump events. | Use Scenario: Mains-connected smart meters requiring IEC 61000-4-4/4-5 compliance for utility-grade surge immunity. IC Role / Device Role / Timing Role: Secondary protection after MOV, absorbing residual fast-rising energy missed by bulk clamping. Use Value: Precise 130 V VRM aligns with 120 VAC-derived DC bus; 7 Ω RD enables accurate coordination with upstream varistor let-through voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ130A | Same VRM (130 V), but 600 W rating at 25 °C only; no specified 175 °C derated power | Lacks documented high-temperature surge capability - unsuitable for under-hood or sealed enclosure use | Select SMB6F130A when sustained operation >125 °C is required |
| P6SMB130A | Identical SMB package and VRM, but higher VCL (214 V) and RD (7.5 Ω); 1 µA leakage @ 85 °C | Higher clamping voltage increases stress on downstream ICs; less optimal for low-voltage tolerant receivers | Select SMB6F130A where tighter clamping margin (<209 V) and lower leakage are critical |
Compared with SMBJ130A and P6SMB130A, SMB6F130A offers superior thermal derating (470 W @ 175 °C), lower leakage (0.2 µA @ 25 °C), and tighter clamping (209 V), making it preferred for high-reliability industrial and automotive power rail protection.
Availability
SMB6F130A is available at Aetrix Electronics and suitable for industrial power supplies, telecom interface protection, automotive body control modules, and smart meter power entry circuits requiring stable component supply across extended temperature and surge stress conditions.
Supply support for SMB6F130A 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensing solutions for industrial, automotive, and consumer markets.
The SMB6FxxA series belongs to ST's high-reliability TVS portfolio, engineered specifically for robust surge immunity in harsh-environment power and interface circuits where thermal stability and low leakage are mandatory.
FAQ
What is the maximum clamping voltage of SMB6F130A under a 10/1000 µs surge?
The maximum clamping voltage (VCL) is 209 V at 3 A for a 10/1000 µs waveform, measured at 25 °C ambient. This value increases with junction temperature per the αT coefficient (10.8 × 10⁻⁴/°C), reaching ~225 V at 175 °C Tj.
Does SMB6F130A meet IEC 61000-4-2 and IEC 61000-4-4 standards?
Yes - it exceeds IEC 61000-4-2 Level 4 (±30 kV air/contact discharge) and meets IEC 61000-4-4 Level 4 (±4 kV EFT), verified per manufacturer test reports and certified in DS12898 Rev 2.
Can SMB6F130A be used in bidirectional protection configurations?
No - it is strictly unidirectional. For bidirectional protection, ST recommends the SMB6F130CA variant (center-tapped, symmetrical clamping), not SMB6F130A. Using two SMB6F130A devices in series-opposed is not validated and risks uneven voltage sharing.
What is the recommended PCB footprint for SMB6F130A?
The official footprint is defined in Figure 13 of DS12898: pad length 3.44 mm (1.20 mm solder mask opening), width 1.20 mm, center-to-center spacing 5.84 mm - optimized for thermal dissipation and JEDEC-compliant reflow per J-STD-020 MSL level 1.
SMB6F130A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-221AA, SMB Flat Leads
- Series:
- SMB6FxxA
- 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):
- 3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMBflat
SMB6F130A FAQ
1.How can I place an order for SMB6F130A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB6F130A 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 SMB6F130A reliable?
The price and inventory of SMB6F130A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB6F130A is usually 5 days.
3.What payment methods are accepted for SMB6F130A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB6F130A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB6F130A?
SMB6F130A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB6F130A 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 SMB6F130A?
For technical support, including SMB6F130A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB6F130A requirements.
6.How does Aetrix verify that SMB6F130A is sourced from the original manufacturer or authorized distributors?
All SMB6F130A 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 SMB6F130A meets industry standards.
7.What is the process for return or replacement of SMB6F130A?
All SMB6F130A units undergo pre-shipment inspection (PSI). If there is an issue with SMB6F130A, 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 SMB6F130A part is unused and in its original packaging.
Return procedure for SMB6F130A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB6F130A Tags
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