Microchip Technology SMBG5380A/TR13
- Part No.:
- SMBG5380A/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5380A/TR13.pdf
- Description:
- DIODE ZENER 120V 5W DO214AA
- Quantity:
- Payment:

- Shipping:

Inventory:7,626
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Product details
Overview
SMBG5380A/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 120 V, ±10% tolerance, 10 mA test current (IZT), and maximum Zener current (IZM) of 39.5 mA at TL < 25 °C. It uses a DO-215AA gull-wing package and serves as a precision voltage reference or overvoltage clamp in DC power rails.
For engineers reviewing the SMBG5380A/TR13 datasheet, SMBG5380A/TR13 pinout, SMBG5380A/TR13 application, or SMBG5380A/TR13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (RθJL = 25 °C/W), surge current rating (IZSM = 1150 A), junction temperature range (–65 to +150 °C), and RoHS-compliant matte-tin plating.
Technical Context
This device operates in reverse-bias breakdown mode with a specified Zener voltage (VZ) of 120 V measured at IZT = 10 mA and TL = 30 °C. Its dynamic impedance (ZZT) is 170 Ω at IZT, and knee impedance (ZZK) is 45 Ω at 1.0 mA - indicating stable regulation near the breakdown threshold.
The SMBG5380A/TR13 exhibits low reverse leakage: IR ≤ 0.5 µA at VR = 91.2 V. It supports high surge immunity (non-repetitive 8.3 ms half-sine IZSM = 1150 A) and maintains moisture sensitivity level 1 per J-STD-020B - eliminating dry-pack requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 120 V ±10% at IZT = 10 mA - defines clamping threshold for overvoltage protection circuits. |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management when mounted on FR4 with recommended footprint. |
| Dynamic Impedance (ZZT) | 170 Ω at IZT = 10 mA - determines voltage regulation stability under load variation. |
| Max Regulator Current (IZM) | 39.5 mA - maximum continuous DC current before exceeding 5 W rating at rated junction temperature. |
| Surge Current (IZSM) | 1150 A (8.3 ms half-sine) - enables robust transient suppression without failure. |
| Junction Temperature Range | –65 to +150 °C - supports operation in automotive under-hood and industrial control environments. |
| Thermal Resistance (RθJL) | 25 °C/W - indicates efficient heat transfer from junction to lead, critical for reliability in high-power pulse applications. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode and cathode only - no internal circuitry or additional pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-bias terminal | Connected to higher-potential node during Zener operation; polarity must be observed to avoid forward conduction. |
| Anode (unbanded end) | Reference/ground terminal | Typically tied to system ground or lower-voltage rail; completes reverse-bias path for regulation or clamping. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5380B equivalent | Identical electrical specs and testing - enables drop-in replacement for legacy through-hole designs using SMBG5380A/TR13. |
| Gull-wing leads | Enables visual solder-joint inspection and improves mechanical reliability vs. J-bend packages like DO-214AA. |
| Moisture Sensitivity Level 1 | No dry-pack required - reduces handling cost and simplifies SMT line logistics for high-volume production. |
| RoHS-compliant matte-tin plating | Meets IPC-J-STD-006B solderability requirements and eliminates lead-based assembly constraints. |
| High surge current rating | 1150 A peak (8.3 ms) - sustains repeated lightning-induced transients in telecom and industrial power supplies. |
Applications
| Industrial Power Supply Protection | Automotive ECU Voltage Reference |
|---|---|
Use Scenario: Clamps 120 V rail surges caused by inductive load switching in PLC backplanes. IC Role / Device Role / Timing Role: Standalone Zener clamp protecting downstream DC-DC converters and microcontrollers. Use Value: Prevents >120 V transients from exceeding absolute maximum ratings of 100 V-rated ICs with 1150 A surge capability. |
Use Scenario: Provides stable 120 V reference for analog sensor excitation in engine control units operating at –40 to +125 °C. IC Role / Device Role / Timing Role: Precision voltage reference source for ratiometric pressure/temperature sensing circuits. Use Value: Maintains ±10% VZ accuracy across temperature and current, enabling <1% measurement error in closed-loop fuel control. |
| Telecom Line Card Surge Suppression | Renewable Energy Inverter DC Bus Clamp |
Use Scenario: Absorbs induced surges on 48 V DC distribution lines in base station cabinets exposed to lightning coupling. IC Role / Device Role / Timing Role: Primary overvoltage protection element placed directly across bus rails. Use Value: Withstands 1150 A non-repetitive surges while maintaining <0.5 µA leakage at 91.2 V - minimizing standby power loss. |
Use Scenario: Limits DC bus overvoltage during regenerative braking events in solar inverters with 1000 V DC link. IC Role / Device Role / Timing Role: Secondary clamping device backing up active IGBT gate drivers during fault conditions. Use Value: Activates at precisely 120 V with 170 Ω dynamic impedance - avoids false triggering while ensuring fast response to >120 V faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5380B | Through-hole DO-41 package; identical VZ, IZT, ZZT, and IZM specs; same ±10% tolerance. | Requires PCB through-hole mounting and wave soldering; unsuitable for high-density SMT layouts. | Select 1N5380B only when legacy board rework or mixed-technology assembly mandates axial-leaded components. |
| SMBJ5380A | Same DO-214AA J-bend package; identical electrical specs but RθJA = 100 °C/W (vs. 90 °C/W for SMBG5380A/TR13) and no gull-wing visual inspection capability. | Lower thermal performance in still-air ambient; less reliable solder joint inspection in automated optical inspection (AOI) systems. | Prefer SMBG5380A/TR13 over SMBJ5380A where thermal margin or process yield assurance is critical. |
Compared with 1N5380B and SMBJ5380A, SMBG5380A/TR13 delivers superior manufacturability via gull-wing leads, tighter thermal resistance (RθJL = 25 °C/W), and verified visual solder-joint verification - making it optimal for high-reliability SMT power rail protection.
Availability
SMBG5380A/TR13 is available at Aetrix Electronics and suitable for industrial power supply protection, automotive ECU voltage reference, and telecom line card surge suppression requiring stable component supply and full traceability.
Supply support for SMBG5380A/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 and mixed-signal components for aerospace, defense, and industrial markets.
The SMBG53xxA/B series was designed specifically for surface-mount voltage regulation and transient suppression in space-constrained, high-surge environments - emphasizing JEDEC compatibility, visual process control, and extended temperature operation.
FAQ
What is the Zener voltage tolerance of SMBG5380A/TR13?
The SMBG5380A/TR13 has a Zener voltage tolerance of ±10%, meaning its breakdown voltage is guaranteed between 108 V and 132 V when tested at IZT = 10 mA and TL = 30 °C. This tolerance is indicated by the "A" suffix in the part number and aligns with JEDEC 1N5380B specifications.
Does SMBG5380A/TR13 require dry packing before SMT assembly?
No, SMBG5380A/TR13 has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, which means it can be stored indefinitely at ambient conditions without dry-pack desiccant or baking prior to reflow. This simplifies inventory handling and reduces manufacturing overhead.
What is the maximum surge current rating for SMBG5380A/TR13?
The SMBG5380A/TR13 is rated for a non-repetitive peak surge current (IZSM) of 1150 A, defined as an 8.3 ms half-sine waveform. This value is confirmed in the Electrical Characteristics table on page 3 of the Microsemi T4-LDS-0246-1 datasheet and reflects its suitability for lightning and inductive-switching transient suppression.
How does the DO-215AA package of SMBG5380A/TR13 differ from DO-214AA?
The DO-215AA package used by SMBG5380A/TR13 features gull-wing leads that extend outward and downward, enabling visual solder-joint inspection and improved mechanical strength. In contrast, DO-214AA (used by SMBJ5380A) has J-bend leads that curve under the body - limiting AOI capability and offering slightly higher thermal resistance (RθJA = 100 °C/W vs. 90 °C/W).
Is SMBG5380A/TR13 RoHS compliant?
Yes, SMBG5380A/TR13 is RoHS compliant, utilizing annealed matte-tin plating per MIL-STD-750 Method 2026. The "e3" marking variant (e.g., SMBG5380Ae3/TR13) explicitly denotes RoHS compliance, though the base part number SMBG5380A/TR13 also meets RoHS Directive 2011/65/EU as shipped by Microsemi.
SMBG5380A/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):
- 120 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 170 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 86.4 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)
SMBG5380A/TR13 FAQ
1.How can I place an order for SMBG5380A/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5380A/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 SMBG5380A/TR13 reliable?
The price and inventory of SMBG5380A/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5380A/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5380A/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5380A/TR13 transactions.
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4.How is shipping managed for SMBG5380A/TR13?
SMBG5380A/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5380A/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 SMBG5380A/TR13?
For technical support, including SMBG5380A/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5380A/TR13 requirements.
6.How does Aetrix verify that SMBG5380A/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5380A/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 SMBG5380A/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5380A/TR13?
All SMBG5380A/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5380A/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 SMBG5380A/TR13 part is unused and in its original packaging.
Return procedure for SMBG5380A/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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