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Microchip Technology SMBG5381C/TR13
- Part No.:
- SMBG5381C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5381C/TR13.pdf
- Description:
- DIODE ZENER 130V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,003
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Product details
Overview
SMBG5381C/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 130 V, ±2% tolerance (suffix C), 10 mA test current, 190 Ω dynamic impedance, and 1250 A peak surge current capability. It regulates voltage in high-voltage power supply rails and overvoltage protection circuits where stable reference and robust transient handling are required.
For engineers reviewing the SMBG5381C/TR13 datasheet, SMBG5381C/TR13 pinout, SMBG5381C/TR13 application, or SMBG5381C/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current rating, thermal resistance (25 °C/W junction-to-lead), DO-215AA gull-wing package compatibility, and RoHS-compliant matte-tin plating.
Technical Context
This device operates as a precision voltage reference in reverse-biased breakdown mode, maintaining regulation across wide current (10 mA to 1250 A surge) and temperature (–65 °C to +150 °C) ranges. Its low dynamic impedance (190 Ω at 10 mA) ensures minimal voltage variation under load changes.
The DO-215AA gull-wing package provides visible solder joints and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity, eliminating dry-pack requirements. Thermal resistance junction-to-lead is 25 °C/W, enabling effective heat transfer to PCB copper when mounted per recommended footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 130 V ±2% at 10 mA - precise reference for high-voltage monitoring and clamping |
| Power Dissipation | 5.0 W at TL < 25 °C - requires thermal management on PCB for sustained operation |
| Dynamic Impedance (ZZT) | 190 Ω at IZT = 10 mA - low AC impedance ensures stable regulation under varying load |
| Max Surge Current (IZSM) | 1250 A (8.3 ms half-sine) - withstands high-energy transients in industrial power systems |
| Junction Temperature Range | –65 °C to +150 °C - suitable for automotive under-hood and industrial ambient environments |
| Thermal Resistance (RθJL) | 25 °C/W - enables efficient heat conduction to lead frame and PCB copper pour |
| Moisture Sensitivity Level | Level 1 per J-STD-020B - no dry pack or bake-out required before reflow |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode and cathode only. Designed for high-density PCB layouts with visible solder joints and compatible with standard reflow profiles (260 °C, 10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Positive terminal in reverse bias | Connected to regulated/high-side rail; voltage referenced to anode |
| Anode | Negative terminal in reverse bias | Typically connected to ground or low-side return path |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N53xxB equivalent | Direct functional replacement for legacy axial 1N5381B with identical electrical specs |
| RoHS-compliant matte-tin plating | Lead-free solder compatibility and MIL-STD-750 compliant solderability |
| Level 1 moisture sensitivity | No dry-pack or baking needed - reduces manufacturing overhead and floor-life constraints |
| Gull-wing lead form | Enables visual post-reflow inspection and improves mechanical reliability vs. J-bend packages |
| High surge current rating | 1250 A non-repetitive peak supports IEC 61000-4-5 level 4 surge immunity designs |
Applications
| Industrial Power Supply Regulation | Automotive Onboard Charger Clamping |
|---|---|
Use Scenario: Stabilizing feedback reference in 400 V DC-link auxiliary supplies for PLCs and motor drives. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp and regulate error amplifier reference voltage. Use Value: ±2% VZ tolerance and 190 Ω ZZT ensure <±0.5 V drift over 10–100 mA load range, improving closed-loop accuracy. | Use Scenario: Overvoltage protection for 300–450 V battery-side circuits during regenerative braking events. IC Role / Device Role / Timing Role: Transient voltage suppressor absorbing 1250 A surge pulses without degradation. Use Value: 1250 A IZSM rating exceeds IEC 61000-4-5 combination wave requirement for Class 4 (4 kV/2 Ω), enabling single-device protection. |
| Telecom Line Card Protection | Renewable Energy Inverter Reference |
Use Scenario: Secondary overvoltage clamp on -48 V DC distribution boards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: High-voltage Zener shunt regulator limiting rail excursion during fast transients. Use Value: 130 V VZ sets precise clamping threshold above nominal -48 V rail, preventing false triggering while ensuring MOSFET gate protection. | Use Scenario: Precision reference for isolated DC-DC converters in solar string inverters operating up to 1000 V DC input. IC Role / Device Role / Timing Role: Stable voltage reference source for feedback divider networks in high-side sensing circuits. Use Value: Low 190 Ω dynamic impedance minimizes reference error contribution (<0.2%) under variable converter loading, improving output regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5381B | Axial-leaded T-18 package; same VZ, tolerance, and IZM; RθJA = 120 °C/W vs. 90 °C/W for SMBG | Requires through-hole mounting and higher board area; less suitable for automated SMT lines | Select when legacy through-hole assembly or manual repair is required; not drop-in for SMT |
| SMBJ5381C | DO-214AA J-bend package; identical electrical specs but RθJL = 30 °C/W (vs. 25 °C/W) and no visible solder joint | Compatible with same PCB footprint family but lacks gull-wing visual inspection capability | Select when DO-214AA is already standardized; slightly lower thermal performance than SMBG |
Compared with 1N5381B and SMBJ5381C, SMBG5381C/TR13 delivers superior thermal conduction (25 °C/W RθJL) and manufacturability (gull-wing visibility), making it optimal for high-reliability SMT power regulation where thermal margin and process control are critical.
Availability
SMBG5381C/TR13 is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive onboard charger clamping, and telecom line card protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG5381C/TR13 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
Microsemi Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, RF, and timing solutions for aerospace, defense, and industrial markets.
The SMBG53xx series was designed specifically for surface-mount, high-power Zener regulation in space-constrained, thermally demanding applications-emphasizing JEDEC compatibility, surge resilience, and RoHS compliance without performance trade-offs.
FAQ
What is the Zener voltage and tolerance of SMBG5381C/TR13?
SMBG5381C/TR13 has a nominal Zener voltage of 130 V with ±2% tolerance, verified at 10 mA test current and 25 °C junction temperature. This tight tolerance enables precise voltage clamping in high-voltage feedback and protection circuits where reference stability is critical to system safety and accuracy.
Does SMBG5381C/TR13 meet RoHS requirements?
Yes, SMBG5381C/TR13 uses RoHS-compliant annealed matte-tin plating per the "e3" designation in its nomenclature, satisfying EU Directive 2011/65/EU and related global environmental standards. The device is fully compatible with lead-free reflow processes up to 260 °C for 10 seconds.
What is the maximum surge current rating for SMBG5381C/TR13?
SMBG5381C/TR13 is rated for 1250 A peak non-repetitive surge current (IZSM) under an 8.3 ms half-sine waveform. This specification directly supports compliance with IEC 61000-4-5 Level 4 surge immunity testing in industrial and automotive power systems.
How does the DO-215AA package of SMBG5381C/TR13 differ from DO-214AA?
The DO-215AA gull-wing package of SMBG5381C/TR13 provides visible solder joints and lower thermal resistance (25 °C/W RθJL) versus the DO-214AA J-bend variant (30 °C/W). While both are surface-mount, DO-215AA supports better post-reflow optical inspection and more efficient heat transfer to PCB copper.
Is SMBG5381C/TR13 a direct replacement for 1N5381B?
SMBG5381C/TR13 is functionally equivalent to 1N5381B in electrical characteristics (VZ, IZT, ZZT, IZM) and testing per JEDEC standards, but it is not a mechanical drop-in replacement due to its DO-215AA surface-mount package versus the axial T-18 package of 1N5381B. Board redesign is required for SMT integration.
SMBG5381C/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-215AA, SMB Gull Wing
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 130 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 190 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 93.6 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG5381C/TR13 FAQ
1.How can I place an order for SMBG5381C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5381C/TR13 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 SMBG5381C/TR13 reliable?
The price and inventory of SMBG5381C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5381C/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5381C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5381C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5381C/TR13?
SMBG5381C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5381C/TR13 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 SMBG5381C/TR13?
For technical support, including SMBG5381C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5381C/TR13 requirements.
6.How does Aetrix verify that SMBG5381C/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5381C/TR13 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 SMBG5381C/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5381C/TR13?
All SMBG5381C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5381C/TR13, 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 SMBG5381C/TR13 part is unused and in its original packaging.
Return procedure for SMBG5381C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5381C/TR13 Tags
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