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STMicroelectronics SMBJ130A-TR
- Part No.:
- SMBJ130A-TR
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ130A-TR.pdf
- Description:
- TVS DIODE 130VWM 209VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:4,854
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Product details
Overview
SMBJ130A-TR from STMicroelectronics is a unidirectional transient voltage suppression (TVS) diode designed for primary-level surge protection on DC power rails and signal lines. It features a 130 V stand-off voltage (VRM), 209 V clamping voltage (VCL) at 3 A peak pulse current (IPP), 600 W peak pulse power (10/1000 µs), and operates up to 150 °C junction temperature - deployed in industrial power supplies, telecom interface circuits, and automotive body control modules.
For engineers reviewing the SMBJ130A-TR datasheet, SMBJ130A-TR pinout, SMBJ130A-TR application, or SMBJ130A-TR equivalent, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, leakage current at elevated temperature (≤0.2 µA at 25 °C), UL497B recognition for isolated loop circuits, and SMB package thermal performance under repeated surge stress.
Technical Context
This TVS diode uses planar silicon junction technology to achieve low dynamic resistance (7.03 Ω at 8/20 µs), fast response time (<1 ns), and stable clamping behavior across -55 °C to +150 °C operating range. Its unidirectional configuration provides asymmetric protection - reverse-biased during normal operation and avalanche-clamping during positive transients only.
The device complies with IEC 61000-4-2 (±30 kV contact/air discharge) and IEC 61000-4-4 (4 kV level 4), with failure mode defined as short-circuit under over-specified voltage/current stress. UL497B recognition (file E136224) confirms suitability for isolated loop circuit protection in safety-critical systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRM) | 130 V - maximum continuous reverse voltage before breakdown; sets minimum system operating margin. |
| Breakdown Voltage (VBR) | 144–152 V at 1 mA - ensures reliable avalanche initiation without premature conduction. |
| Clamping Voltage (VCL) | 209 V at 3 A (10/1000 µs) - limits transient voltage seen by downstream components. |
| Peak Pulse Power | 600 W (10/1000 µs), 265 W (8/20 µs) - defines single-event surge handling capability. |
| Leakage Current | 0.2 µA at 25 °C, 1 µA at 85 °C - minimizes standby power loss and avoids false triggering. |
| Junction Temperature Range | -55 °C to +150 °C - supports operation in harsh environments including under-hood automotive and industrial enclosures. |
| Dynamic Resistance (RD) | 7.03 Ω - determines voltage rise per unit surge current beyond IPP; critical for precision clamping. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, JEDEC-registered outline with matte tin-plated leads (MSL Level 1, J-STD-020 compliant). Dimensions: 3.95 mm × 5.60 mm × 2.45 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Marked Band) | Surge current sink terminal | Connected to protected line; conducts avalanche current to ground during positive transients. |
| Anode | Reference/ground return | Typically tied to system ground or low-impedance return path; completes clamping loop. |
Key Features
| Feature | Design Value |
|---|---|
| UL497B Recognition | Agency file E136224 - validated for use in isolated loop circuits per safety standard. |
| Low-Temperature Leakage | 0.2 µA max at 25 °C - preserves signal integrity in high-impedance sensor interfaces. |
| High-Temperature Stability | Rated for 150 °C Tj - enables placement near heat sources (e.g., MOSFETs, inductors) without derating. |
| Fast Response Time | <1 ns - clamps transients before sensitive ICs experience overstress. |
| Robust Surge Rating | IEC 61000-4-2 ±30 kV (contact/air), IEC 61000-4-4 4 kV - exceeds industrial immunity requirements. |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) CAN Bus Line Protection |
|---|---|
|
Use Scenario: 24 V DC input rail exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary clamping device placed upstream of DC-DC converter input. Use Value: Limits transient voltage to ≤209 V, preventing damage to 36 V-rated input capacitors and controller ICs. |
Use Scenario: CAN_H/CAN_L lines subjected to ESD events and coupled noise in vehicle cabin wiring. IC Role / Device Role / Timing Role: Unidirectional TVS on each CAN line referenced to chassis ground. Use Value: Clamps ESD spikes within <1 ns while maintaining ≤1 pF junction capacitance to avoid signal distortion. |
| Telecom Interface Port Protection | Smart Meter AC/DC Power Entry Stage |
|
Use Scenario: RS-485 transceiver ports connected to external field wiring in utility infrastructure. IC Role / Device Role / Timing Role: Line-to-ground TVS on differential pair inputs. Use Value: Withstands 4 kV IEC 61000-4-4 surges without degradation, preserving data integrity over 10+ year service life. |
Use Scenario: Mains-derived DC bus entering metering IC and real-time clock circuitry. IC Role / Device Role / Timing Role: First-stage surge suppressor before bridge rectifier and bulk capacitor. Use Value: Absorbs 600 W transients while maintaining <0.2 µA leakage to ensure accurate low-power metrology during battery backup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ130CA-TR | Bidirectional variant; symmetrical clamping (±209 V); higher capacitance (~10 pF). | Required where both polarities of transients must be suppressed (e.g., AC-coupled data lines). | Select only if bidirectional protection is mandated; otherwise unidirectional offers lower capacitance and tighter VCL tolerance. |
| SMAJ130A | Lower power rating (400 W @ 10/1000 µs); SMA package (smaller footprint, higher thermal resistance). | Suitable for space-constrained, low-energy surge environments (e.g., consumer USB ports). | Not recommended for industrial 600 W surge requirements; SMBJ130A-TR delivers 50% higher pulse power in same PCB area. |
Compared with SMBJ130CA-TR and SMAJ130A, SMBJ130A-TR uniquely balances high 600 W surge capacity, low 7.03 Ω dynamic resistance, and UL497B certification - making it optimal for safety-critical, high-reliability DC rail protection where unidirectional threat models dominate.
Availability
SMBJ130A-TR is available at Aetrix Electronics and suitable for industrial power supply input protection, automotive body control module (BCM) CAN bus line protection, and smart meter AC/DC power entry stage applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SMBJ130A-TR 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, delivering innovative solutions across automotive, industrial, power, and sensing domains since 1987.
The SMBJ series belongs to ST's Transient Voltage Suppressor portfolio, engineered specifically for robust, standards-compliant surge protection in harsh-environment electronics - emphasizing reliability, low leakage, and high-temperature stability.
FAQ
What is the difference between SMBJ130A-TR and SMBJ130CA-TR?
SMBJ130A-TR is unidirectional and clamps only positive transients relative to ground, with typical junction capacitance below 1 pF. SMBJ130CA-TR is bidirectional and clamps both polarities symmetrically, exhibiting ~10 pF capacitance due to dual-junction structure. The 'A' version is preferred for DC power rails; 'CA' suits AC-coupled or floating signal lines.
Does SMBJ130A-TR meet IEC 61000-4-5 requirements?
No - SMBJ130A-TR is rated for IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT), not IEC 61000-4-5 (surge). Its 600 W (10/1000 µs) rating aligns with level 4 EFT testing. For IEC 61000-4-5 compliance, higher-energy devices such as 1.5KE130A or P6KE130A are required.
Can SMBJ130A-TR be used in parallel for higher surge current handling?
Not recommended without current-sharing design measures. Variations in VBR (144–152 V) cause uneven current division, risking thermal runaway in one device. For >3 A IPP, select a single higher-rated part like SMBJ150A or use active current-balancing circuits.
Is the SMBJ130A-TR RoHS and REACH compliant?
Yes - it carries STMicroelectronics' ECOPACK2 designation, confirming full compliance with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, including lead-free matte tin plating and halogen-free molding compound.
SMBJ130A-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-214AA, SMB
- Series:
- SMBJ, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- 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):
- 3A
- Power - Peak Pulse:
- 600W
- 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:
- SMB
SMBJ130A-TR FAQ
1.How can I place an order for SMBJ130A-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ130A-TR 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 SMBJ130A-TR reliable?
The price and inventory of SMBJ130A-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ130A-TR is usually 5 days.
3.What payment methods are accepted for SMBJ130A-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ130A-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ130A-TR?
SMBJ130A-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ130A-TR 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 SMBJ130A-TR?
For technical support, including SMBJ130A-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ130A-TR requirements.
6.How does Aetrix verify that SMBJ130A-TR is sourced from the original manufacturer or authorized distributors?
All SMBJ130A-TR 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 SMBJ130A-TR meets industry standards.
7.What is the process for return or replacement of SMBJ130A-TR?
All SMBJ130A-TR units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ130A-TR, 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 SMBJ130A-TR part is unused and in its original packaging.
Return procedure for SMBJ130A-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ130A-TR Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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