Microchip Technology SMBG5340BE3/TR13
- Part No.:
- SMBG5340BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5340BE3/TR13.pdf
- Description:
- DIODE ZENER 6V 5W DO214AA
- Quantity:
- Payment:

- Shipping:

Inventory:4,235
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Product details
Overview
SMBG5340BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 6.0 V, ±5% tolerance (B suffix), 200 mA test current (IZT), and 790 Ω dynamic impedance (ZZT) at IZT. It operates in the breakdown region to provide stable voltage regulation in power supply feedback paths, overvoltage protection circuits, and reference voltage generation for industrial power converters.
For engineers reviewing the SMBG5340BE3/TR13 datasheet, SMBG5340BE3/TR13 pinout, SMBG5340BE3/TR13 application, or SMBG5340BE3/TR13 equivalent, key selection criteria include its DO-215AA gull-wing package thermal performance (RθJL = 25 °C/W), 12.7 V maximum surge current rating (IZSM), and RoHS-compliant matte-tin plating per MIL-STD-750 method 2026.
Technical Context
This device functions as a precision voltage reference by maintaining a stable 6.0 V across its terminals when reverse-biased above its breakdown threshold, with minimal voltage variation over operating current (IZ = 200 mA) and temperature (-65 °C to +150 °C). Its low dynamic impedance (790 Ω at 200 mA) ensures tight regulation under load transients.
The SMBG5340BE3/TR13 uses a void-free thermosetting epoxy case (UL94V-0), cathode band polarity marking, and gull-wing leads optimized for visible solder joint inspection on FR4 PCBs. It meets JEDEC 1N5340B electrical specifications and supports tape-and-reel delivery (EIA-481-1-A, 12 mm tape).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.0 V ±5% at 200 mA - defines regulated output voltage in shunt regulator designs |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - sets maximum continuous power handling with lead temperature control |
| Dynamic Impedance (ZZT) | 790 Ω at 200 mA - determines voltage deviation under current step changes in feedback loops |
| Max Surge Current (IZSM) | 12.7 A (8.3 ms half-sine) - enables transient overvoltage clamping without failure |
| Junction Temp Range | -65 °C to +150 °C - supports operation in automotive under-hood and industrial motor drive environments |
| Thermal Resistance (RθJL) | 25 °C/W - allows accurate junction temperature estimation from measured lead temperature |
| Reverse Leakage (IR) | 1.0 µA at 3.0 V - ensures negligible current draw in standby mode below regulation threshold |
Pinout & Package
Package: DO-215AA gull-wing surface-mount package with cathode indicated by band; RoHS-compliant matte-tin plating; 0.1 g weight; moisture sensitivity level 1 (no dry pack required).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage reference node | Connected to system ground or lower-potential rail in shunt regulator configuration |
| Cathode | Reverse breakdown terminal / regulated output node | Banded end; connected to input rail or feedback point requiring stable 6.0 V reference |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5340B equivalence | Identical electrical characteristics and test methods - enables drop-in replacement in legacy designs |
| Gull-wing lead form | Visible solder joints on FR4 board - simplifies AOI inspection and rework in high-density layouts |
| Level 1 moisture sensitivity | No dry pack or baking required before SMT assembly - reduces manufacturing overhead |
| High surge current rating | 12.7 A non-repetitive peak - provides robust ESD and lightning-induced transient suppression |
| Low leakage at VR = 3.0 V | 1.0 µA max - minimizes quiescent current in battery-powered or low-power standby circuits |
Applications
| Switch-Mode Power Supply Feedback | Industrial Overvoltage Clamp |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converter secondary-side feedback loop using optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Zener reference providing precise 6.0 V threshold for TL431-like comparator function. Use Value: Maintains ±1% output regulation across line/load/temperature with 790 Ω dynamic impedance limiting feedback error. |
Use Scenario: Clamps 24 V DC bus against surges exceeding 30 V during motor commutation or relay switching. IC Role / Device Role / Timing Role: Shunt protection device absorbing transient energy until crowbar circuit triggers. Use Value: Withstands 12.7 A surge (8.3 ms) without degradation, preserving downstream MOSFET gate drivers. |
| Programmable Logic Controller Input Protection | Test Equipment Reference Voltage |
Use Scenario: Protects 24 V digital input channel from field-wiring induced transients in factory automation systems. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed before series current-limiting resistor and Schmitt trigger. Use Value: Low 1.0 µA leakage at 3.0 V prevents false triggering; gull-wing package enables compact 2-layer PCB layout. |
Use Scenario: Provides stable 6.0 V reference for 12-bit DAC calibration in portable multimeter front-end. IC Role / Device Role / Timing Role: Precision shunt reference replacing higher-cost bandgap ICs where ±5% tolerance suffices. Use Value: -65 °C to +150 °C operating range ensures calibration stability across environmental test chambers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5340B | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and PD specs; no RoHS option. | Requires through-hole assembly; unsuitable for high-density SMT production. | Select when legacy through-hole boards require direct functional replacement without layout change. |
| SMBJ5340B | DO-214AA J-bend package; same electrical specs; RθJA = 90 °C/W vs. SMBG's 25 °C/W (JL); different pad layout. | Lower thermal performance in lead-attached heatsinking; requires revised footprint. | Select when existing DO-214AA land patterns are fixed and lead-to-ambient cooling suffices. |
Compared with SMBG5340BE3/TR13, 1N5340B offers identical regulation but mandates through-hole assembly, while SMBJ5340B shares electrical behavior but sacrifices thermal efficiency due to higher junction-to-ambient resistance-making SMBG5340BE3/TR13 optimal for thermally constrained SMT power rails.
Availability
SMBG5340BE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, programmable logic controller I/O modules, and test equipment reference circuits requiring stable component supply with RoHS compliance and gull-wing manufacturability.
Supply support for SMBG5340BE3/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 SMBG53xxB series was designed specifically for surface-mount voltage regulation in space-constrained, thermally demanding power systems-emphasizing JEDEC compatibility, visible solder joints, and surge resilience.
FAQ
What is the Zener voltage tolerance of SMBG5340BE3/TR13?
The SMBG5340BE3/TR13 has a ±5% Zener voltage tolerance, denoted by the "B" suffix in its part number. This means its actual breakdown voltage falls between 5.7 V and 6.3 V when tested at 200 mA (IZT) and 25 °C. The tolerance is verified per JEDEC 1N5340B test standards and applies across the full operating temperature range of -65 °C to +150 °C.
Does SMBG5340BE3/TR13 require dry packing before SMT assembly?
No, SMBG5340BE3/TR13 does not require dry packing. It carries IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it can be stored indefinitely at ambient conditions (≤30 °C / 60% RH) without baking. This eliminates pre-reflow drying steps and reduces manufacturing cycle time for high-volume SMT lines.
What is the maximum surge current rating for SMBG5340BE3/TR13?
The SMBG5340BE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 12.7 A, defined as the maximum current for an 8.3 ms half-sine waveform. This value is confirmed in the Electrical Characteristics table on page 3 of the Microsemi datasheet T4-LDS-0246-1 and supports robust transient suppression in 24 V industrial control systems.
How does the DO-215AA package of SMBG5340BE3/TR13 differ from DO-214AA?
The DO-215AA package of SMBG5340BE3/TR13 features gull-wing leads for visible solder joint inspection and lower thermal resistance (RθJL = 25 °C/W), whereas DO-214AA (used in SMBJ5340B) uses J-bend leads with higher RθJA (90 °C/W). These structural differences require distinct PCB footprints and yield different thermal management strategies in power-dense layouts.
Is SMBG5340BE3/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5340BE3/TR13 supports lead-free reflow with a maximum solder temperature of 260 °C for 10 seconds, as specified in the Maximum Ratings table. Its RoHS-compliant matte-tin plating meets MIL-STD-750 method 2026 solderability requirements, ensuring reliable wetting and joint integrity under standard JEDEC J-STD-020D profile conditions.
SMBG5340BE3/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):
- 6 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 1 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 3 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)
SMBG5340BE3/TR13 FAQ
1.How can I place an order for SMBG5340BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5340BE3/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 SMBG5340BE3/TR13 reliable?
The price and inventory of SMBG5340BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5340BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5340BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5340BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5340BE3/TR13?
SMBG5340BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5340BE3/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 SMBG5340BE3/TR13?
For technical support, including SMBG5340BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5340BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5340BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5340BE3/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 SMBG5340BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5340BE3/TR13?
All SMBG5340BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5340BE3/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 SMBG5340BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5340BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5340BE3/TR13 Tags

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