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Microchip Technology SMBG5386BE3/TR13
- Part No.:
- SMBG5386BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5386BE3/TR13.pdf
- Description:
- DIODE ZENER 180V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,619
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Product details
Overview
SMBG5386BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 180 V, ±5% tolerance (B suffix), rated test current of 5.0 mA, maximum dynamic impedance of 430 Ω at IZT, and peak surge current capability of 1750 A (8.3 ms half-sine). It regulates voltage in high-voltage power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5386BE3/TR13 datasheet, SMBG5386BE3/TR13 pinout, SMBG5386BE3/TR13 application, or SMBG5386BE3/TR13 equivalent, this part serves as a RoHS-compliant, gull-wing DO-215AA packaged Zener for stable voltage reference and transient clamping where 180 V breakdown and 5 W steady-state dissipation are required.
Technical Context
This device operates in reverse-biased Zener breakdown mode, delivering precise 180 V regulation at 5.0 mA test current with dynamic impedance of 430 Ω. Its thermal resistance junction-to-lead is 25 °C/W, enabling effective heat transfer to PCB copper when mounted per recommended footprint.
The SMBG5386BE3/TR13 exhibits low reverse leakage (≤0.5 µA at VR = 144 V), minimal voltage drift over temperature (−65 to +150 °C operating range), and robust surge handling (1750 A non-repetitive 8.3 ms half-sine), making it suitable for industrial power rail stabilization and ESD-robust protection networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 180 V ±5% at IZT = 5.0 mA - defines precise clamping threshold for 180 V rail protection |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management on FR4 board to sustain full rating |
| Dynamic Impedance (ZZT) | 430 Ω at IZT = 5.0 mA - determines regulation stiffness under varying load current |
| Max Surge Current (IZSM) | 1750 A (8.3 ms half-sine) - supports single-event transient suppression without failure |
| Reverse Leakage (IR) | ≤0.5 µA at VR = 144 V - ensures minimal standby power loss in high-impedance bias networks |
| Junction Temp Range | −65 to +150 °C - enables operation in extended industrial and automotive under-hood environments |
| Thermal Resistance RθJL | 25 °C/W - allows direct thermal path to PCB lead for reliable 5 W operation with adequate copper area |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; anode and cathode terminals only; moisture sensitivity level 1 (no dry pack required).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for reverse-bias operation | Connected to lower-potential side of protected circuit; forms return path during Zener conduction |
| Cathode | Regulated output node | Banded end; connected to higher-potential rail (e.g., 180 V supply); voltage clamped to VZ when exceeded |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5386B equivalent | Identical electrical specs and test methods to legacy through-hole 1N5386B, enabling drop-in redesign |
| Gull-wing DO-215AA leads | Enables visual solder joint inspection and reliable reflow attachment on high-density PCBs |
| RoHS-compliant matte-tin plating | Meets IPC/JEDEC J-STD-020B Level 1 moisture classification; no baking required before assembly |
| High surge current rating | 1750 A (8.3 ms) supports IEC 61000-4-5 Level 4 surge immunity without external series impedance |
| Stable Zener voltage vs. current | Low ZZT (430 Ω) and tight 5% tolerance ensure predictable clamping across 1–10 mA operating range |
Applications
| Switch-Mode Power Supply Feedback | Industrial DC Bus Overvoltage Clamp |
|---|---|
Use Scenario: Regulates error amplifier reference in isolated flyback or forward converter feedback network. IC Role / Device Role / Timing Role: Zener diode providing stable 180 V reference to optocoupler LED drive circuit. Use Value: Maintains ±5% output voltage accuracy despite line/load variation and 100–150 °C ambient temperature swings. |
Use Scenario: Clamps 180 V DC bus against transients induced by motor switching or relay contact bounce. IC Role / Device Role / Timing Role: Standby shunt regulator absorbing energy during overvoltage events exceeding 180 V. Use Value: Withstands 1750 A surge without degradation, eliminating need for additional TVS cascading in Class 3 industrial systems. |
| Programmable Logic Controller Input Protection | Medical Imaging HV Bias Stabilization |
Use Scenario: Protects 24 V digital input stage from accidental connection to 180 V auxiliary supply. IC Role / Device Role / Timing Role: Reverse-biased Zener limiting input voltage to safe levels during miswiring events. Use Value: Low IR (≤0.5 µA) prevents false triggering; gull-wing leads support automated optical inspection post-reflow. |
Use Scenario: Stabilizes bias voltage for X-ray detector photodiode arrays requiring precise 180 V bias. IC Role / Device Role / Timing Role: Precision Zener reference maintaining <±0.5% long-term drift over 10-year service life. Use Value: Moisture Level 1 rating eliminates field failures from humidity-induced leakage in sealed imaging enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5386B | Through-hole DO-41 package; identical VZ, IZT, ZZT, and IZSM specs; non-RoHS tin-lead plating | Requires axial-leaded PCB layout; not suitable for SMT-only production lines | Select when legacy through-hole assembly or cost-sensitive non-RoHS designs are prioritized |
| SMBJ5386B | Same DO-214AA (J-bend) package; identical electrical specs but different thermal resistance (RθJA = 90 °C/W vs. 25 °C/W for SMBG) | Lower thermal performance limits sustained 5 W operation without enhanced heatsinking | Select when existing J-bend footprint reuse is critical, accepting reduced thermal margin at full power |
Compared with SMBG5386BE3/TR13, the 1N5386B offers identical regulation but mandates through-hole assembly, while SMBJ5386B shares SMT compatibility but sacrifices thermal efficiency-making SMBG5386BE3/TR13 optimal for high-reliability, high-power-density 180 V clamp designs.
Availability
SMBG5386BE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, medical imaging bias circuits, and programmable logic controller input protection requiring stable component supply and RoHS compliance.
Supply support for SMBG5386BE3/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 SMBG53xxB series was designed specifically for surface-mount voltage regulation and transient suppression in space-constrained, high-voltage power systems where JEDEC-compatibility and thermal robustness are essential.
FAQ
What is the Zener voltage tolerance for SMBG5386BE3/TR13?
The "B" suffix in SMBG5386BE3/TR13 specifies a ±5% Zener voltage tolerance, meaning its actual breakdown voltage falls between 171 V and 189 V when measured at 5.0 mA test current and 25 °C. This tolerance is verified per JEDEC test standards and applies across the full operating temperature range of −65 to +150 °C.
Does SMBG5386BE3/TR13 require dry packing before reflow soldering?
No, SMBG5386BE3/TR13 has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it can be stored indefinitely at ambient conditions without desiccant or dry packing. The device's void-free epoxy body and RoHS-compliant matte-tin plating eliminate moisture absorption concerns during standard reflow profiles up to 260 °C.
How does the thermal performance of SMBG5386BE3/TR13 compare to SMBJ5386B?
SMBG5386BE3/TR13 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W, significantly lower than SMBJ5386B's RθJA of 90 °C/W. This means SMBG5386BE3/TR13 transfers heat more efficiently to the PCB copper via its gull-wing leads, enabling sustained 5 W operation with standard FR4 layout, whereas SMBJ5386B requires larger copper areas or forced cooling at full power.
Is SMBG5386BE3/TR13 compatible with the legacy 1N5386B in circuit design?
Yes, SMBG5386BE3/TR13 is electrically and functionally equivalent to 1N5386B per Microsemi documentation, sharing identical VZ, IZT, ZZT, IR, and IZSM specifications. The only differences are package (DO-215AA vs. DO-41) and plating (RoHS matte-tin vs. Sn/Pb), making SMBG5386BE3/TR13 a direct surface-mount replacement where layout permits.
What is the maximum surge current rating for SMBG5386BE3/TR13 and how is it defined?
SMBG5386BE3/TR13 is rated for a maximum non-repetitive peak surge current (IZSM) of 1750 A, defined as the peak value of an 8.3 ms half-sine waveform per IEC 61000-4-5. This rating is validated under specified test conditions and reflects the device's ability to absorb single-event transients without parametric shift or catastrophic failure.
SMBG5386BE3/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:
- ±5%
- 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)
SMBG5386BE3/TR13 FAQ
1.How can I place an order for SMBG5386BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5386BE3/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 SMBG5386BE3/TR13 reliable?
The price and inventory of SMBG5386BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5386BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5386BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5386BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5386BE3/TR13?
SMBG5386BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5386BE3/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 SMBG5386BE3/TR13?
For technical support, including SMBG5386BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5386BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5386BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5386BE3/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 SMBG5386BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5386BE3/TR13?
All SMBG5386BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5386BE3/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 SMBG5386BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5386BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5386BE3/TR13 Tags
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MM5Z5V1ST1G
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