Microchip Technology SMBG5386A/TR13
- Part No.:
- SMBG5386A/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5386A/TR13.pdf
- Description:
- DIODE ZENER 180V 5W DO214AA
- Quantity:
- Payment:

- Shipping:

Inventory:8,033
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Product details
Overview
SMBG5386A/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 180 V, ±10% tolerance (A suffix), 5.0 mA test current (IZT), 430 Ω dynamic impedance (ZZT), and maximum regulator current of 26.4 mA (IZM) at 25 °C ambient on FR4 board. It serves as a precision voltage reference and overvoltage clamp in DC power rails for industrial power supplies.
For engineers reviewing the SMBG5386A/TR13 datasheet, SMBG5386A/TR13 pinout, SMBG5386A/TR13 application, or SMBG5386A/TR13 equivalent, this page delivers verified electrical parameters, DO-215AA gull-wing package details, JEDEC 1N5386A-compliant characteristics, thermal derating behavior, and RoHS-compatible plating options - all confirmed from Microsemi's official T4-LDS-0246-1 Rev. 1 specification.
Technical Context
This device operates in reverse-bias breakdown mode to maintain stable voltage across wide current (5–26.4 mA) and temperature (−65 to +150 °C) ranges. Its 430 Ω dynamic impedance at 5.0 mA ensures predictable regulation slope, while 0.5 µA reverse leakage at 144 V (VR) confirms low standby loss in high-voltage hold-off applications.
The DO-215AA gull-wing package provides visible solder joints and 25 °C/W junction-to-lead thermal resistance, enabling reliable 5 W dissipation only when lead temperature (TL) is maintained below 25 °C - requiring external heat sinking or PCB copper area per Microsemi's recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 180 V ±10% - defines clamping threshold for overvoltage protection circuits at IZT = 5.0 mA |
| Test Current (IZT) | 5.0 mA - standardized bias point for VZ measurement and ZZT characterization |
| Dynamic Impedance (ZZT) | 430 Ω - small-signal AC resistance in breakdown; determines regulation sensitivity to load current changes |
| Max Regulator Current (IZM) | 26.4 mA - maximum continuous DC current at TL < 25 °C; limits usable power to 5.0 W |
| Reverse Leakage (IR) | 0.5 µA @ 144 V - ensures minimal quiescent current in high-impedance voltage monitor paths |
| Thermal Resistance (RθJL) | 25 °C/W - enables thermal design using lead temperature as primary thermal metric, not ambient |
| Surge Current (IZSM) | 1750 A (8.3 ms half-sine) - supports transient overvoltage suppression without failure |
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) | Breakdown terminal | Positive voltage reference node; must be held at higher potential than anode to activate Zener conduction |
| Anode | Reference return | Ground or low-side return path; polarity reversal causes forward conduction at ~1.2 V |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5386A equivalence | Identical electrical specs and test methods - allows drop-in replacement in legacy through-hole designs using adapter footprints |
| Moisture Sensitivity Level 1 | No dry pack required before reflow - simplifies SMT handling and reduces assembly cost |
| RoHS-compliant matte-tin plating | Meets IPC/JEDEC J-STD-020B reflow profile compatibility - supports lead-free manufacturing without solderability risk |
| Gull-wing lead form | Enables visual post-reflow solder joint inspection - critical for automotive and industrial reliability audits |
Applications
| Industrial Power Supply Regulation | Telecom Line Card Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing auxiliary 180 V DC rail in programmable logic controller (PLC) power modules under variable load conditions. IC Role / Device Role / Timing Role: Voltage reference and shunt regulator - maintains constant output despite input ripple and load transients. Use Value: 430 Ω ZZT and ±10% VZ tolerance ensure <±1.8 V regulation error across 5–26.4 mA operating range, meeting IEC 61000-4-5 surge immunity requirements. | Use Scenario: Protecting Ethernet PHY interface circuitry from lightning-induced surges on -48 V DC distribution lines. IC Role / Device Role / Timing Role: High-energy transient suppressor - clamps line-to-ground spikes above 144 V before they reach sensitive transceivers. Use Value: 1750 A non-repetitive surge rating (8.3 ms) and 0.5 µA IR at 144 V enable fail-safe operation without degrading baseline power efficiency. |
| Medical Imaging HV Bias Reference | Test Equipment Calibration Standard |
Use Scenario: Providing stable 180 V reference for photomultiplier tube (PMT) gain control in portable X-ray detectors. IC Role / Device Role / Timing Role: Precision DC voltage reference - sets analog gain scaling independent of supply variation. Use Value: −65 to +150 °C operating range and 25 °C/W RθJL allow direct mounting to aluminum heatsinks in sealed enclosures without thermal runaway. | Use Scenario: Serving as traceable 180 V calibration point in benchtop multimeters and source-measure units (SMUs). IC Role / Device Role / Timing Role: Secondary standard reference - bridges metrology-grade references to production test fixtures. Use Value: 5.0 mA IZT and 180 V ±10% VZ match NIST-traceable calibrators; DO-215AA gull-wing geometry ensures repeatable thermal contact during automated test. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5386A | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and IZM specs per JEDEC | Requires through-hole assembly and larger PCB real estate; unsuitable for high-density SMT layouts | Select when legacy board repair or manual prototyping demands axial form factor |
| SMBJ5386A | DO-214AA J-bend package; same electrical specs but 90 °C/W RθJA vs. 25 °C/W RθJL | Limited to lower-power operation (<1.38 W on FR4) due to inferior thermal path; not rated for full 5 W | Select only for space-constrained boards where 1.38 W dissipation suffices and gull-wing inspection is unnecessary |
Compared with SMBG5386A/TR13, 1N5386A offers identical regulation performance but requires through-hole assembly, while SMBJ5386A sacrifices thermal capability for smaller footprint - making SMBG5386A/TR13 the sole choice for full 5 W SMT Zener regulation with visible solder joints and Level 1 moisture handling.
Availability
SMBG5386A/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, telecom line cards, medical imaging bias rails, and test equipment calibration requiring stable component supply with RoHS compliance and gull-wing manufacturability.
Supply support for SMBG5386A/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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The SMBG53xxA series targets high-voltage, high-power surface-mount Zener regulation - engineered for ruggedized power conditioning in environments demanding MIL-STD-750 ESD immunity and IPC/JEDEC J-STD-020B moisture robustness.
FAQ
What is the Zener voltage tolerance for SMBG5386A/TR13?
The "A" suffix in SMBG5386A/TR13 specifies ±10% Zener voltage tolerance, meaning its measured VZ falls between 162 V and 198 V at 5.0 mA test current and 25 °C. This tolerance is confirmed in Microsemi's T4-LDS-0246-1 Rev. 1 Electrical Characteristics table for SMBG5386B/A variants and applies identically to the TR13 tape-and-reel packaging variant of SMBG5386A/TR13.
Can SMBG5386A/TR13 dissipate 5 W continuously in standard SMT assembly?
No - SMBG5386A/TR13 delivers 5.0 W only when lead temperature (TL) is maintained below 25 °C, per Microsemi's Maximum Ratings table. On a standard FR4 board with recommended footprint, its power derates to 1.38 W at 25 °C ambient (TA). Full 5 W operation requires external heatsinking or thermal vias to keep TL ≤ 25 °C, as stated in Note 2 of the datasheet.
Is SMBG5386A/TR13 RoHS compliant?
Yes - SMBG5386A/TR13 uses RoHS-compliant annealed matte-tin plating on gull-wing leads, verified in the Mechanical and Packaging section of T4-LDS-0246-1 Rev. 1. The "e3" marking variant (e.g., SMBG5386Ae3/TR13) explicitly denotes RoHS compliance, but the base SMBG5386A/TR13 part number is manufactured to the same matte-tin specification per Microsemi's standard process.
What is the reverse leakage current specification for SMBG5386A/TR13?
SMBG5386A/TR13 has a maximum reverse leakage current (IR) of 0.5 µA at 144 V reverse voltage (VR), as specified in the Electrical Characteristics table on page 3 of T4-LDS-0246-1 Rev. 1. This value is measured at TL = 30 °C and defines the upper bound of standby current in high-impedance voltage monitoring circuits using SMBG5386A/TR13.
How does the DO-215AA package of SMBG5386A/TR13 differ from DO-214AA?
The DO-215AA gull-wing package of SMBG5386A/TR13 provides visible solder joints and 25 °C/W junction-to-lead thermal resistance, whereas DO-214AA (used in SMBJ5386A) has J-bend leads and 90 °C/W junction-to-ambient rating. This makes SMBG5386A/TR13 suitable for full 5 W operation with proper lead heatsinking, unlike DO-214AA parts limited to 1.38 W on FR4 - a distinction confirmed in Microsemi's Maximum Ratings and Package Dimensions sections.
SMBG5386A/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):
- 180 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 430 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 130 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)
SMBG5386A/TR13 FAQ
1.How can I place an order for SMBG5386A/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5386A/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 SMBG5386A/TR13 reliable?
The price and inventory of SMBG5386A/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5386A/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5386A/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5386A/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5386A/TR13?
SMBG5386A/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5386A/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 SMBG5386A/TR13?
For technical support, including SMBG5386A/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5386A/TR13 requirements.
6.How does Aetrix verify that SMBG5386A/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5386A/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 SMBG5386A/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5386A/TR13?
All SMBG5386A/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5386A/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 SMBG5386A/TR13 part is unused and in its original packaging.
Return procedure for SMBG5386A/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5386A/TR13 Tags

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