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Microchip Technology SMBG5375B/TR13
- Part No.:
- SMBG5375B/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5375B/TR13.pdf
- Description:
- DIODE ZENER 82V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,180
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Product details
Overview
SMBG5375B/TR13 from Microsemi is a surface-mount 5 W Zener diode with a nominal breakdown voltage of 82 V, ±5% tolerance (B suffix), 15 mA test current (IZT), 65 Ω dynamic impedance (ZZT), and 58 mA maximum regulator current (IZM). It operates in the DO-215AA gull-wing package and is used for precision voltage regulation in power supply feedback loops, overvoltage protection circuits, and reference voltage generation.
For engineers reviewing the SMBG5375B/TR13 datasheet, SMBG5375B/TR13 pinout, SMBG5375B/TR13 application, or SMBG5375B/TR13 equivalent, key selection criteria include Zener voltage accuracy at 15 mA, thermal resistance (RθJL = 25 °C/W), surge current capability (IZSM = 720 A), moisture sensitivity level (MSL Level 1), and RoHS-compliant matte-tin plating.
Technical Context
This device functions as a two-terminal voltage reference diode operating in reverse breakdown, maintaining stable output voltage across wide current (5–58 mA) and temperature (−65 to +150 °C) ranges. Its low dynamic impedance (65 Ω at IZT = 15 mA) ensures minimal voltage variation under load transients.
The SMBG5375B/TR13 uses a void-free thermosetting epoxy case (UL94V-0), gull-wing leads with annealed matte-tin plating, and cathode polarity marked by a band. It meets MIL-STD-750 method 1020 for ESD insensitivity and withstands non-repetitive 8.3 ms half-sine surge currents up to 720 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 82 V ±5% at 15 mA - defines precise regulation point for feedback or clamping |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management when mounted on FR4 with recommended footprint |
| Dynamic Impedance (ZZT) | 65 Ω at IZT = 15 mA - low AC impedance enables stable regulation under varying load current |
| Max Regulator Current (IZM) | 58 mA - maximum continuous DC current before exceeding 5 W rating at rated junction temperature |
| Surge Current (IZSM) | 720 A (8.3 ms half-sine) - supports transient overvoltage suppression without failure |
| Thermal Resistance (RθJL) | 25 °C/W - enables efficient heat transfer from junction to lead, critical for sustained power operation |
| Moisture Sensitivity | Level 1 per J-STD-020B - no dry pack required, simplifies SMT handling and storage |
Pinout & Package
Package: DO-215AA (SMBG), gull-wing surface-mount plastic package with cathode band marking. Dimensions: A = 1.96–2.10 mm, B = 4.06–4.57 mm, C = 3.30–3.94 mm, E = 1.95–2.65 mm, F = 5.97–6.48 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-biased reference terminal | Connected to lower-potential node; forms regulated voltage drop with cathode |
| Cathode | Reverse-biased reference terminal | Banded end; connected to higher-potential node; defines regulated output voltage relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5375B equivalent | Identical electrical specs and testing - enables legacy design migration without requalification |
| Gull-wing lead form | Visible solder joints for automated optical inspection (AOI) and reliable reflow process control |
| RoHS-compliant matte-tin plating | Solderable per MIL-STD-750 method 2026 - supports lead-free assembly and long-term reliability |
| MSL Level 1 rating | No dry pack or baking required - reduces manufacturing overhead and avoids moisture-induced popcorning |
| High surge current rating | 720 A peak (8.3 ms) - protects downstream circuitry against lightning-induced or inductive-switching transients |
Applications
| Switch-Mode Power Supply Feedback | Industrial Overvoltage Clamp |
|---|---|
Use Scenario: Used in optocoupler-based feedback loop of isolated 48 V DC-DC converter to regulate output within ±1%. IC Role / Device Role / Timing Role: Voltage reference element setting error amplifier threshold; reverse-biased Zener maintains fixed 82 V reference across primary-side controller. Use Value: Tight ±5% VZ tolerance and 65 Ω ZZT ensure stable regulation despite line/load variations and temperature drift from −40 to +85 °C ambient. |
Use Scenario: Placed across motor drive bus to clamp voltage spikes during MOSFET turn-off in 75 V industrial actuator. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting bus voltage to ≤86 V (VZ + ΔV at IZM), protecting gate drivers and MCU inputs. Use Value: 720 A surge rating absorbs 100 mJ transient energy without degradation, validated per IEC 61000-4-5 Level 3. |
| Programmable Reference Source | Telecom Line Card Protection |
Use Scenario: Paired with precision resistor divider to generate adjustable 5–80 V reference for ADC calibration in test equipment. IC Role / Device Role / Timing Role: Stable Zener reference node providing known voltage offset for ratiometric measurement systems. Use Value: Low 0.5 µA IR at VR = 65.6 V ensures negligible current draw, preserving divider accuracy and minimizing self-heating error. |
Use Scenario: Mounted on DSL line interface card to protect PHY ICs from induced surges on twisted-pair copper lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on line-side power rail, coordinated with gas discharge tube (GDT) for staged protection. Use Value: MSL Level 1 and RoHS compliance support high-volume automated assembly; gull-wing leads enable consistent solder joint formation on dense PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5375B | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and IZM specs; RθJA ≈ 120 °C/W vs. 90 °C/W for SMBG5375B/TR13 | Requires through-hole mounting; unsuitable for high-density SMT designs or automated placement | Select when board space allows axial components and thermal constraints permit higher RθJA |
| SMBJ5375B | J-bend DO-214AA package; same electrical specs but different lead geometry; RθJL = 30 °C/W (vs. 25 °C/W); slightly larger pad layout | Compatible with standard SMT pick-and-place but lacks visible gull-wing solder joints for AOI verification | Choose when existing DO-214AA footprint exists and visual solder inspection is not required |
Compared with 1N5375B and SMBJ5375B, SMBG5375B/TR13 offers superior thermal performance (RθJL = 25 °C/W), gull-wing visibility for process validation, and optimized footprint for fine-pitch automated assembly-making it preferred for compact, high-reliability power regulation modules.
Availability
SMBG5375B/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial overvoltage clamps, and programmable reference sources requiring stable component supply, full traceability, and RoHS-compliant manufacturing.
Supply support for SMBG5375B/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, RF, and discrete power devices for aerospace, defense, and industrial markets.
The SMBG53xxB series was designed to deliver JEDEC-identical 5 W Zener performance in a gull-wing surface-mount package for high-density, low-profile power regulation and protection in harsh-environment electronics.
FAQ
What is the Zener voltage tolerance and test current for SMBG5375B/TR13?
The SMBG5375B/TR13 has a nominal Zener voltage of 82 V with ±5% tolerance (denoted by the "B" suffix) and is specified at a test current (IZT) of 15 mA. This tolerance ensures the actual breakdown voltage falls between 77.9 V and 86.1 V under standard test conditions (TL = 30 °C), supporting robust voltage reference design in feedback and protection circuits where moderate precision is required.
Does SMBG5375B/TR13 require dry packing before reflow soldering?
No, SMBG5375B/TR13 carries a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it is not moisture-sensitive and does not require dry packing, baking, or special handling prior to reflow soldering. This simplifies manufacturing logistics and eliminates risk of popcorning during assembly, making it ideal for high-volume SMT production environments.
What is the maximum surge current rating for SMBG5375B/TR13 and how is it defined?
The SMBG5375B/TR13 is rated for a non-repetitive peak surge current (IZSM) of 720 A, defined as the maximum peak value of an 8.3 ms half-sine waveform. This rating reflects its ability to absorb transient energy without failure, enabling use in overvoltage protection applications such as motor drive snubbers and telecom line clamps where short-duration, high-energy events occur.
How does the thermal resistance of SMBG5375B/TR13 compare between junction-to-lead and junction-to-ambient?
SMBG5375B/TR13 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W and a junction-to-ambient resistance (RθJA) of 90 °C/W when mounted on an FR4 PCB with 1 oz copper and the recommended footprint. The lower RθJL indicates efficient heat conduction through the leads-critical for sustained 5 W operation-while RθJA reflects total system-level dissipation including board layout effects.
Is SMBG5375B/TR13 compatible with lead-free reflow processes?
Yes, SMBG5375B/TR13 features RoHS-compliant annealed matte-tin plating and is qualified for lead-free reflow soldering at a peak temperature of 260 °C for 10 seconds. Its UL94V-0 epoxy body and gull-wing lead geometry ensure mechanical integrity and wetting performance across standard Pb-free thermal profiles, supporting compliance with global environmental regulations.
SMBG5375B/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:
- ±5%
- 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)
SMBG5375B/TR13 FAQ
1.How can I place an order for SMBG5375B/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5375B/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 SMBG5375B/TR13 reliable?
The price and inventory of SMBG5375B/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5375B/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5375B/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5375B/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5375B/TR13?
SMBG5375B/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5375B/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 SMBG5375B/TR13?
For technical support, including SMBG5375B/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5375B/TR13 requirements.
6.How does Aetrix verify that SMBG5375B/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5375B/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 SMBG5375B/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5375B/TR13?
All SMBG5375B/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5375B/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 SMBG5375B/TR13 part is unused and in its original packaging.
Return procedure for SMBG5375B/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5375B/TR13 Tags
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MM5Z5V1ST1G
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