Microchip Technology SMBG5382A/TR13
- Part No.:
- SMBG5382A/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5382A/TR13.pdf
- Description:
- DIODE ZENER 140V 5W DO214AA
- Quantity:
- Payment:

- Shipping:

Inventory:2,273
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Product details
Overview
SMBG5382A/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 140 V, ±10% tolerance (A suffix), and maximum regulator current of 8.0 mA at 25 °C. It features DO-215AA gull-wing package, 25 °C/W junction-to-lead thermal resistance, and is rated for operation from –65 °C to +150 °C. It serves as a precision voltage reference or overvoltage clamp in industrial power supply feedback loops.
For engineers reviewing the SMBG5382A/TR13 datasheet, SMBG5382A/TR13 pinout, SMBG5382A/TR13 application, or SMBG5382A/TR13 equivalent, key selection criteria include its 140 V Zener voltage, ±10% tolerance, 5 W power rating at lead temperature <25 °C, DO-215AA gull-wing footprint compatibility, and surge current capability of 1500 A (8.3 ms half-sine).
Technical Context
This device operates in reverse-biased breakdown mode, delivering stable regulation across wide current (IZK = 1.0 mA to IZM = 8.0 mA) and temperature (–65 °C to +150 °C) ranges. Its dynamic impedance is 230 Ω at IZT = 8.0 mA, and it exhibits ≤0.5 µA reverse leakage at VR = 101 V.
The SMBG5382A/TR13 uses void-free UL94V-0 epoxy encapsulation with matte-tin RoHS-compliant plating, meets MIL-STD-750 method 2026 solderability, and has IPC/JEDEC J-STD-020B Level 1 moisture sensitivity - no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 140 V ±10% at IZT = 8.0 mA - defines clamping threshold in overvoltage protection circuits |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management via PCB copper pour or heatsink attachment to leads |
| Max Regulator Current (IZM) | 8.0 mA - maximum continuous DC current before exceeding 5 W rating at rated lead temperature |
| Dynamic Impedance (ZZT) | 230 Ω at IZT = 8.0 mA - determines voltage deviation under load transients |
| Reverse Leakage (IR) | ≤0.5 µA at VR = 101 V - ensures minimal standby power loss in high-impedance bias networks |
| Surge Current (IZSM) | 1500 A (8.3 ms half-sine) - withstands lightning-induced or switching transient energy without failure |
| Junction Temp Range | –65 °C to +150 °C - supports operation in automotive under-hood and industrial outdoor environments |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode and cathode only. Designed for visible solder joint inspection and compatible with standard reflow profiles (260 °C peak, 10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference/ground node in Zener shunt configuration | Connected to system ground or lower-potential rail; forms return path for regulation current |
| Cathode | Regulated output node | Banded end; connected to voltage node requiring stabilization (e.g., feedback divider tap) |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5382B equivalent | Identical electrical specs and test methods - enables drop-in replacement in legacy designs |
| Gull-wing lead form | Enables visual solder joint inspection and reduces tombstoning risk on FR4 boards |
| Level 1 moisture sensitivity | No dry pack or baking required prior to assembly - simplifies SMT line logistics |
| RoHS-compliant matte-tin plating | Meets IPC-J-STD-006B solderability requirements without Pb - supports lead-free manufacturing |
| High surge current rating | 1500 A (8.3 ms) - protects downstream circuitry from IEC 61000-4-5 level 4 surges |
Applications
| Industrial Power Supply Feedback | DC Bus Overvoltage Clamp |
|---|---|
|
Use Scenario: Stabilizing error amplifier reference voltage in isolated flyback or forward converter feedback networks. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 140 V threshold for optocoupler-driven regulation loop. Use Value: Maintains ±10% output voltage accuracy across line/load/temperature variations due to low dynamic impedance (230 Ω) and minimal voltage drift. |
Use Scenario: Clamping transient spikes on 125 V DC bus in motor drives or solar inverters. IC Role / Device Role / Timing Role: Passive overvoltage protector diverting surge energy to ground when bus exceeds 140 V. Use Value: Survives 1500 A (8.3 ms) surges without degradation, preventing MOSFET gate oxide rupture or capacitor overvoltage failure. |
| Telecom Line Card Protection | Test Equipment Reference Source |
|
Use Scenario: Protecting analog front-end inputs on DSL or POTS line cards from induced lightning surges. IC Role / Device Role / Timing Role: Primary shunt clamp limiting differential-mode voltage between tip/ring to 140 V. Use Value: Low leakage (≤0.5 µA at 101 V) avoids signal distortion in high-impedance receive paths while enabling robust surge handling. |
Use Scenario: Providing stable 140 V reference in portable calibration sources or high-voltage bench supplies. IC Role / Device Role / Timing Role: Precision Zener element in compensated reference subcircuit with temperature-stable biasing. Use Value: Junction temperature range (–65 °C to +150 °C) and tight tolerance (±10%) ensure traceable accuracy across environmental chambers and field use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5382B | Axial-leaded T-18 package; identical VZ, tolerance, and electrical specs; higher RθJA (125 °C/W vs. 90 °C/W) | Requires through-hole assembly and larger board area; unsuitable for high-density SMT layouts | Select when retrofitting legacy through-hole designs or where manual repair accessibility is prioritized over density. |
| SMBJ5382B | DO-214AA J-bend package; same VZ and tolerance; slightly higher ZZT (250 Ω vs. 230 Ω); identical surge rating | Compatible with same PCB footprint as SMBG but requires different stencil aperture and placement offset | Choose when existing DO-214AA tooling exists or when gull-wing inspection is not required for process control. |
Compared with SMBG5382A/TR13, 1N5382B trades SMT compatibility for mechanical serviceability, while SMBJ5382B offers footprint flexibility at minor impedance cost - both retain full electrical equivalence for 140 V regulation tasks.
Availability
SMBG5382A/TR13 is available at Aetrix Electronics and suitable for industrial power supply feedback, DC bus overvoltage clamp, and telecom line card protection requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for SMBG5382A/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, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The SMBG53xx series was designed to deliver JEDEC-registered Zener performance in compact surface-mount packages for space-constrained power management and protection systems.
FAQ
What is the Zener voltage tolerance for SMBG5382A/TR13?
The 'A' suffix in SMBG5382A/TR13 denotes ±10% Zener voltage tolerance, meaning the actual breakdown voltage falls between 126 V and 154 V at IZT = 8.0 mA and TL = 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of Microsemi's T4-LDS-0246-1 datasheet, and applies specifically to the SMBG5382A/TR13 variant.
Does SMBG5382A/TR13 require dry packing before reflow soldering?
No, SMBG5382A/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, which means it may be stored indefinitely at ambient conditions without dry packing or baking. This is explicitly stated in the "MECHANICAL and PACKAGING" section of the datasheet and verified by Microsemi's qualification testing.
What is the maximum surge current rating for SMBG5382A/TR13?
SMBG5382A/TR13 is rated for 1500 A non-repetitive peak surge current with an 8.3 ms half-sine waveform, as specified in the Electrical Characteristics table on page 3 of the datasheet. This value is measured under standardized conditions and applies directly to the SMBG5382A/TR13 part number.
Is SMBG5382A/TR13 RoHS compliant?
Yes, SMBG5382A/TR13 uses RoHS-compliant matte-tin plating per the part nomenclature definition (no 'e3' suffix required for RoHS compliance in this series) and meets MIL-STD-750 method 2026 solderability requirements. The datasheet confirms RoHS versions are available and specifies annealed matte-tin as the standard finish.
What package type does SMBG5382A/TR13 use?
SMBG5382A/TR13 uses the DO-215AA gull-wing surface-mount package, as defined in the "MECHANICAL and PACKAGING" section and illustrated in the Package Dimensions drawing on page 5 of the datasheet. This package is distinct from DO-214AA (J-bend) and T-18 (axial-leaded) variants in the same family.
SMBG5382A/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):
- 140 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 230 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 101 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)
SMBG5382A/TR13 FAQ
1.How can I place an order for SMBG5382A/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5382A/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 SMBG5382A/TR13 reliable?
The price and inventory of SMBG5382A/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5382A/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5382A/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5382A/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5382A/TR13?
SMBG5382A/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5382A/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 SMBG5382A/TR13?
For technical support, including SMBG5382A/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5382A/TR13 requirements.
6.How does Aetrix verify that SMBG5382A/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5382A/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 SMBG5382A/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5382A/TR13?
All SMBG5382A/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5382A/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 SMBG5382A/TR13 part is unused and in its original packaging.
Return procedure for SMBG5382A/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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