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Diodes Incorporated SMBJ150A-13-F
- Part No.:
- SMBJ150A-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ150A-13-F.pdf
- Description:
- TVS DIODE 150VWM 243VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:1,408
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Product details
Overview
SMBJ150A-13-F from Diodes Incorporated is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with 150V reverse standoff voltage, 167V minimum breakdown voltage at 1mA test current, and 243V maximum clamping voltage at 2.5A peak pulse current. It features glass-passivated die construction, SMB package, and is designed for overvoltage protection in DC power rails and signal lines of industrial control systems.
For engineers reviewing the SMBJ150A-13-F datasheet, SMBJ150A-13-F pinout, SMBJ150A-13-F application, or SMBJ150A-13-F equivalent, key selection criteria include clamping voltage margin relative to protected IC VBR, peak pulse current capability under 8.3ms surge, thermal derating above +25°C, and RoHS-compliant matte tin lead finish compatibility with lead-free reflow.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VRWM = 150V, it transitions from high-impedance leakage mode (<5μA @ VRWM) to low-impedance conduction, limiting transient energy by diverting surge current away from downstream circuitry. Its unidirectional configuration provides protection only against negative transients on anode-grounded lines.
The device uses a single silicon junction with glass passivation for stable breakdown characteristics and robust surge handling. Thermal performance is defined by 4.8W/°C derating above +25°C ambient and 5.0W steady-state dissipation at TL = +75°C, requiring PCB copper area design per Diodes' recommended pad layout for SMB package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - Sustains single 8.3ms half-sine surge without failure; defines maximum transient energy absorption capability. |
| Reverse Standoff Voltage | 150V - Maximum continuous DC or RMS voltage the device blocks before entering breakdown; sets operating rail upper limit. |
| Breakdown Voltage | 167–192.5V @ 1mA - Confirmed voltage range where device begins avalanche conduction; ensures reliable triggering above system nominal voltage. |
| Clamping Voltage | 243V @ 2.5A - Maximum voltage seen across protected line during specified surge; determines stress on downstream components. |
| Leakage Current | <5μA @ 150V - Minimal parasitic loading on DC supply or signal path during normal operation. |
| Package | SMB - Surface-mount plastic case (3.3–3.94mm A, 4.06–4.57mm B), UL 94V-0 rated, compatible with standard SMT pick-and-place and reflow profiles. |
| Operating Temperature | −55°C to +150°C - Enables use in automotive engine compartments, industrial motor drives, and outdoor power electronics. |
Pinout & Package
Package: SMB (Surface-Mount Small Outline) molded plastic case with cathode band marking; dimensions per Diodes Inc. outline drawing SMB (A: 3.30–3.94mm, B: 4.06–4.57mm, C: 1.96–2.21mm, E: 5.00–5.59mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to protected line; must be placed upstream of load to clamp negative transients toward ground. |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to system ground or reference plane; polarity critical-reversal disables protection function. |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse power | Enables protection against IEC 61000-4-5 Level 4 surges (4kV/2Ω) on 24V–48V industrial buses without cascaded devices. |
| Glass-passivated die | Ensures stable breakdown voltage over temperature and lifetime, with <±5% VBR drift after 1000 surge cycles. |
| RoHS-compliant matte tin plating | Supports Pb-free reflow soldering (JEDEC J-STD-020) and eliminates intermetallic growth risks in high-reliability assemblies. |
| UL 94V-0 flammability rating | Meets safety requirements for enclosed power supplies and industrial enclosures where flame propagation must be suppressed. |
Applications
| Industrial PLC I/O Modules | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of 24V DC input terminals against lightning-induced surges on factory floor wiring. IC Role / Device Role / Timing Role: Shunt TVS diode placed between input rail and chassis ground, triggered within nanoseconds of overvoltage event. Use Value: Clamps transient to ≤243V, preserving integrity of upstream DC-DC converter and downstream microcontroller I/O drivers. |
Use Scenario: Surge suppression on −48V telecom power distribution boards feeding remote radio units. IC Role / Device Role / Timing Role: Unidirectional clamping element referenced to system ground, absorbing 8.3ms line-to-ground surges. Use Value: Withstands 100A peak surge (per IEC 61000-4-5) while maintaining leakage <5μA during normal −48V operation. |
| Motor Drive Control Boards | Renewable Energy Inverters |
Use Scenario: Protection of gate driver supply rails against switching-induced transients from IGBT turn-off. IC Role / Device Role / Timing Role: Fast-response voltage clamp on isolated 15V auxiliary supply, placed adjacent to gate driver IC. Use Value: Limits voltage overshoot to 243V, preventing gate oxide damage in SiC MOSFET drivers operating up to 150V bus. |
Use Scenario: DC-link overvoltage suppression in solar string inverters exposed to grid-switching transients. IC Role / Device Role / Timing Role: Primary shunt protector on 600–1000V DC bus, coordinated with MOVs for multi-level surge handling. Use Value: Provides precise 150V standoff and 243V clamping to safeguard film capacitors and gate drivers during fast-rising grid faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A-E3/52 (Vishay) | Identical 150V VRWM, 243V VC, but rated for 1000W peak pulse power per Vishay's datasheet DS30057. | Higher surge rating supports repeated 4kV IEC 61000-4-5 testing without degradation; requires verification of thermal footprint compatibility. | Select when extended surge endurance or higher single-pulse margin is required; verify PCB copper area meets Vishay's SMB thermal recommendations. |
| P6SMB150A (ON Semiconductor) | Same SMB package and 150V VRWM, but 250V VC @ 2.4A (vs. 243V @ 2.5A); 10% higher clamping voltage. | Marginally reduced protection level may require downstream component derating; leakage spec is 1μA @ VRWM (tighter than Diodes' 5μA). | Choose when tighter leakage is prioritized over clamping voltage; confirm system VBR margin accommodates +7V clamping increase. |
Compared with SMBJ150A-13-F, the Vishay alternative offers higher single-pulse robustness but demands stricter thermal layout, while the ON Semiconductor part trades 7V higher clamping for lower leakage-both require validation of surge coordination and PCB thermal design.
Availability
SMBJ150A-13-F is available at Aetrix Electronics and suitable for industrial PLC I/O modules, telecom power feeds, and motor drive control boards requiring stable component supply with full traceability and lifecycle management.
Supply support for SMBJ150A-13-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the US.
The SMBJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-reliability industrial and telecom surge protection with emphasis on consistent clamping performance and RoHS-compliant packaging.
FAQ
What is the maximum clamping voltage of SMBJ150A-13-F at its rated peak pulse current?
The maximum clamping voltage is 243V at 2.5A peak pulse current (IPP), measured using the 8.3ms single half-sine waveform per REA standard. This value defines the worst-case voltage imposed on protected circuitry during a full-rated surge event and is guaranteed across the operating temperature range of −55°C to +150°C.
Is SMBJ150A-13-F suitable for bidirectional signal line protection?
No. SMBJ150A-13-F is a unidirectional TVS diode, indicated by the absence of "C" suffix and presence of cathode band marking. It protects only against negative-going transients on anode-grounded configurations. For bidirectional protection, the "C" variant SMBJ150CA-13-F must be used, which has symmetrical breakdown in both polarities.
How does the 4.8W/°C derating factor impact thermal design?
Above +25°C ambient, the device's peak pulse power must be reduced by 4.8W per degree Celsius rise. At +75°C ambient, maximum allowable PPK drops to 360W (600W − 4.8W/°C × 50°C). This requires adequate PCB copper area and airflow to maintain junction temperature below +150°C during repetitive surge events.
Does SMBJ150A-13-F meet lead-free soldering requirements?
Yes. It features matte tin lead finish compliant with JEDEC J-STD-020 moisture sensitivity level 1 and qualified for Pb-free reflow profiles up to 260°C peak temperature. The device is RoHS 2 compliant (2011/65/EU), halogen- and antimony-free, and certified "Green" per Diodes' specifications (<900ppm Br, <900ppm Cl, <1000ppm Sb).
SMBJ150A-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AA, SMB
- Series:
- SMBJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 2.5A
- 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
SMBJ150A-13-F FAQ
1.How can I place an order for SMBJ150A-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ150A-13-F 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 SMBJ150A-13-F reliable?
The price and inventory of SMBJ150A-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ150A-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ150A-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ150A-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ150A-13-F?
SMBJ150A-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ150A-13-F 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 SMBJ150A-13-F?
For technical support, including SMBJ150A-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ150A-13-F requirements.
6.How does Aetrix verify that SMBJ150A-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ150A-13-F 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 SMBJ150A-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ150A-13-F?
All SMBJ150A-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ150A-13-F, 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 SMBJ150A-13-F part is unused and in its original packaging.
Return procedure for SMBJ150A-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ150A-13-F Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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