Microchip Technology SMBG5375AE3/TR13
- Part No.:
- SMBG5375AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5375AE3/TR13.pdf
- Description:
- DIODE ZENER 82V 5W DO214AA
- Quantity:
- Payment:

- Shipping:

Inventory:3,703
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Product details
Overview
SMBG5375AE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 82 V, ±10% tolerance (A suffix), and maximum Zener current of 58 mA at 25 °C. It uses DO-215AA gull-wing package, features 44 Ω dynamic impedance at 15 mA test current, and operates across –65 to +150 °C junction temperature range. It serves as a precision voltage reference or overvoltage clamp in DC power rails.
For engineers reviewing the SMBG5375AE3/TR13 datasheet, SMBG5375AE3/TR13 pinout, SMBG5375AE3/TR13 application, or SMBG5375AE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, surge current rating (720 A), thermal resistance (25 °C/W junction-to-lead), and RoHS-compliant matte-tin plating for lead-free assembly.
Technical Context
This device functions as a two-terminal voltage regulator diode operating in reverse breakdown. Its Zener voltage is specified at 15 mA test current (IZT) with 44 Ω dynamic impedance (ZZT) and 0.5 µA maximum reverse leakage at 65.5 V (VR).
The SMBG5375AE3/TR13 delivers 5 W power dissipation at TL < 25 °C, derates linearly above that temperature with RθJL = 25 °C/W, and withstands non-repetitive 8.3 ms half-sine surge currents up to 720 A per JEDEC standard.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 82 V ±10% at 15 mA - defines stable regulation point under nominal bias |
| Test Current (IZT) | 15 mA - standardized operating point for VZ and ZZT measurement |
| Dynamic Impedance (ZZT) | 44 Ω at 15 mA - low AC impedance ensures minimal voltage variation under load transients |
| Max Reverse Leakage (IR) | 0.5 µA at 65.5 V - confirms tight blocking behavior below breakdown threshold |
| Max Zener Current (IZM) | 58 mA at TL = 25 °C - maximum continuous DC current before exceeding 5 W power limit |
| Surge Current (IZSM) | 720 A (8.3 ms half-sine) - supports transient overvoltage suppression without failure |
| Junction Temp Range | –65 to +150 °C - enables operation in automotive under-hood and industrial control environments |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; anode and cathode terminals are exposed on opposite sides of the molded epoxy body for visible solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection | Connected to circuit ground or lower potential node during Zener operation |
| Cathode | Reverse-biased terminal / high-side connection | Banded end; connected to regulated voltage rail or surge source for clamping |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5375B equivalent | Identical electrical specs and test methods to legacy through-hole 1N5375B, enabling drop-in redesign |
| RoHS-compliant matte-tin plating | e3 suffix confirms lead-free termination compatible with Pb-free reflow profiles (260 °C/10 s) |
| Level 1 moisture sensitivity | No dry pack required - simplifies handling and eliminates bake-out prior to assembly |
| Gull-wing lead form | Enables visual solder joint inspection and improves mechanical reliability vs. J-bend packages |
| High surge current capability | 720 A non-repetitive surge rating supports IEC 61000-4-5 Level 4 compliance in power supply inputs |
Applications
| Industrial Power Supply Regulation | Automotive ECU Voltage Reference |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converters for PLC I/O modules. IC Role / Device Role / Timing Role: Two-terminal shunt regulator providing precise 82 V reference for optocoupler-based feedback loop. Use Value: Maintains output regulation within ±10% over –40 to +85 °C ambient with minimal drift due to low ZZT and wide IZ operating range. |
Use Scenario: Clamping transient spikes on 24 V battery-supplied microcontroller power rails in engine control units. IC Role / Device Role / Timing Role: Overvoltage protection element absorbing load-dump energy per ISO 7637-2 Pulse 5a. Use Value: Withstands 720 A surge without degradation, preventing MCU brownout or latch-up during alternator load dump events. |
| Telecom Line Card Protection | Renewable Energy Inverter Monitoring |
Use Scenario: Protecting analog front-end inputs of DSL line cards from induced surges on twisted-pair copper lines. IC Role / Device Role / Timing Role: Primary clamping device limiting voltage to 82 V before secondary TVS activation. Use Value: Low IR (0.5 µA) prevents signal loading; gull-wing package allows high-density layout adjacent to connector interfaces. |
Use Scenario: Providing stable reference for DC-link voltage sensing in solar string inverters operating at 600–1000 V bus levels. IC Role / Device Role / Timing Role: Precision Zener reference in resistive divider network feeding isolated ADC input. Use Value: ±10% VZ tolerance and 44 Ω ZZT ensure <0.5% full-scale error contribution across temperature and aging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5375B | Through-hole DO-41 package; identical VZ, IZT, ZZT, and IZM specs; Sn/Pb plating only | Requires PCB redesign for axial-leaded mounting; not suitable for automated SMT lines | Select when legacy through-hole assembly or higher thermal mass is preferred |
| SMBJ5375B | DO-214AA J-bend package; same electrical specs but RθJA = 90 °C/W (vs. 25 °C/W junction-to-lead for SMBG) | Lower thermal performance in high-power density layouts; requires larger copper area for equivalent cooling | Select when footprint compatibility with existing SMBJ footprints is prioritized over thermal efficiency |
Compared with SMBG5375AE3/TR13, the 1N5375B offers identical regulation performance but mandates through-hole assembly, while SMBJ5375B sacrifices thermal resistance for J-bend mount compatibility-making SMBG5375AE3/TR13 optimal for high-reliability SMT designs requiring superior heat transfer to leads.
Availability
SMBG5375AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, telecom line cards, and renewable energy inverters requiring stable component supply with RoHS compliance and high surge immunity.
Supply support for SMBG5375AE3/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 SMBG53xx series was designed specifically for surface-mount voltage regulation and transient suppression in space-constrained, high-surge environments where gull-wing visibility and Level 1 moisture robustness are critical.
FAQ
What is the Zener voltage tolerance for SMBG5375AE3/TR13?
The SMBG5375AE3/TR13 has a ±10% Zener voltage tolerance, indicated by the "A" suffix in the part number. This means its breakdown voltage is guaranteed between 73.8 V and 90.2 V at 15 mA test current and 25 °C junction temperature, per Microsemi T4-LDS-0246-1 Rev. 1 specifications.
Does SMBG5375AE3/TR13 require dry packing before reflow soldering?
No, SMBG5375AE3/TR13 does not require dry packing. It carries IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it can be stored indefinitely at ≤30 °C/60% RH without baking or special handling prior to reflow soldering at 260 °C for 10 seconds.
What is the maximum surge current rating for SMBG5375AE3/TR13?
The SMBG5375AE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 720 A, defined as an 8.3 ms half-sine waveform. This rating is validated per JEDEC test conditions and supports robust transient protection in industrial and automotive power systems.
How does the thermal resistance of SMBG5375AE3/TR13 compare to other 5 W Zener packages?
SMBG5375AE3/TR13 has RθJL = 25 °C/W (junction-to-lead), significantly lower than RθJA = 90 °C/W for DO-214AA variants like SMBJ5375B. This enables more efficient heat transfer directly to PCB copper traces via gull-wing leads, improving power handling in compact layouts.
Is SMBG5375AE3/TR13 functionally equivalent to 1N5375B?
Yes, SMBG5375AE3/TR13 is functionally and electrically equivalent to 1N5375B per Microsemi documentation, sharing identical VZ, IZT, ZZT, IZM, and IR specifications. The primary difference is surface-mount DO-215AA packaging versus through-hole DO-41, with no electrical performance trade-offs.
SMBG5375AE3/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):
- 82 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 65 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 59 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)
SMBG5375AE3/TR13 FAQ
1.How can I place an order for SMBG5375AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5375AE3/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 SMBG5375AE3/TR13 reliable?
The price and inventory of SMBG5375AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5375AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5375AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5375AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5375AE3/TR13?
SMBG5375AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5375AE3/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 SMBG5375AE3/TR13?
For technical support, including SMBG5375AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5375AE3/TR13 requirements.
6.How does Aetrix verify that SMBG5375AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5375AE3/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 SMBG5375AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5375AE3/TR13?
All SMBG5375AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5375AE3/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 SMBG5375AE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5375AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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