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Microchip Technology SMBG5342C/TR13
- Part No.:
- SMBG5342C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5342C/TR13.pdf
- Description:
- DIODE ZENER 6.8V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,307
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Product details
Overview
SMBG5342C/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 6.8 V ±2%, 175 mA test current (IZT), 1.0 Ω dynamic impedance (ZZT), and maximum regulator current of 700 mA. It operates in the DO-215AA gull-wing package and is used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5342C/TR13 datasheet, SMBG5342C/TR13 pinout, SMBG5342C/TR13 application, or SMBG5342C/TR13 equivalent, key selection criteria include Zener voltage tolerance (±2%), thermal resistance (RθJL = 25 °C/W), surge current rating (11.5 A), junction temperature range (–65 to +150 °C), and RoHS-compliant matte-tin plating.
Technical Context
This device functions as a two-terminal voltage reference operating in reverse breakdown, with specified Zener voltage measured at 175 mA (IZT) and 30 °C lead temperature. Its low dynamic impedance (1.0 Ω) ensures stable regulation under varying load currents, and its 5 W power rating is valid only when lead temperature remains below 25 °C.
The SMBG5342C/TR13 uses a void-free thermosetting epoxy case (UL94V-0), gull-wing tin-plated terminals solderable per MIL-STD-750 Method 2026, and features cathode polarity indicated by a band. Moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1 - no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.8 V ±2% at IZT = 175 mA - defines regulated output voltage with tight tolerance for feedback accuracy |
| Test Current (IZT) | 175 mA - operating point where VZ and ZZT are guaranteed; sets minimum bias requirement |
| Dynamic Impedance (ZZT) | 1.0 Ω - low AC impedance ensures minimal voltage variation under dynamic load changes |
| Max Regulator Current (IZM) | 700 mA - maximum DC current sustainable at rated power with proper heat sinking |
| Surge Current (IZSM) | 11.5 A (8.3 ms half-sine) - withstands transient overvoltage events without failure |
| Junction Temp Range | –65 to +150 °C - supports operation in industrial and automotive under-hood environments |
| Thermal Resistance (RθJL) | 25 °C/W - enables thermal design using lead-to-PCB conduction path, not ambient convection |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by a band; leads are tin-plated for RoHS compliance and solderability per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage reference node | Connected to ground or lower-potential rail in shunt regulator configuration |
| Cathode | Reverse breakdown terminal / regulated output node | Banded end; connected to input rail and feedback network; maintains stable 6.8 V reference |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5342B equivalent | Identical electrical specs and test methods - enables drop-in replacement in legacy designs |
| RoHS-compliant matte-tin plating | Meets environmental compliance without sacrificing solderability or reliability |
| Moisture Sensitivity Level 1 | No dry pack or baking required before reflow - reduces manufacturing overhead |
| Gull-wing lead form | Enables visual solder joint inspection and high-density PCB layout |
| High surge current capability | 11.5 A non-repetitive peak withstand - protects downstream circuitry during line transients |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Used in optocoupler-based feedback loop of isolated DC-DC converters to regulate output voltage. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 6.8 V threshold to error amplifier input. Use Value: ±2% tolerance ensures output regulation within ±1% across line/load/temperature, critical for compliance with safety standards. |
Use Scenario: Placed across sensitive IC inputs to clamp ESD or surge-induced overvoltage. IC Role / Device Role / Timing Role: Fast-acting voltage limiter that conducts above 6.8 V to divert energy away from protected node. Use Value: 11.5 A surge rating absorbs IEC 61000-4-5 Level 4 surges without degradation, extending system field life. |
| Industrial Sensor Signal Conditioning | Programmable Reference Divider Network |
Use Scenario: Stabilizes excitation voltage for bridge-based pressure or strain sensors in harsh environments. IC Role / Device Role / Timing Role: Low-impedance voltage reference source maintaining constant bias despite supply ripple. Use Value: 1.0 Ω dynamic impedance minimizes output deviation under sensor load variations, improving measurement repeatability. |
Use Scenario: Paired with precision resistors to generate accurate sub-6.8 V references via resistor divider. IC Role / Device Role / Timing Role: Stable Zener node enabling predictable ratio-based scaling of higher-voltage rails. Use Value: Tight ±2% VZ tolerance propagates directly into reference accuracy, reducing calibration burden. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5342B | Same VZ, IZT, ZZT, and IZM; axial-leaded T-18 package instead of DO-215AA surface mount | Requires through-hole PCB assembly; unsuitable for automated SMT lines or high-density layouts | Select 1N5342B only for prototyping, repair, or legacy through-hole systems where footprint compatibility is mandatory |
| SMBJ5342C | Same electrical specs and RoHS compliance; DO-214AA J-bend package instead of DO-215AA gull-wing | Different pad layout and solder profile; gull-wing allows visual inspection, J-bend does not | Choose SMBJ5342C if existing board uses DO-214AA footprint or requires tighter height clearance than DO-215AA permits |
Compared with 1N5342B and SMBJ5342C, SMBG5342C/TR13 offers gull-wing geometry optimized for AOI inspection and thermal conduction via leads, making it preferred for volume SMT production where traceability, manufacturability, and thermal performance are prioritized.
Availability
SMBG5342C/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, and industrial sensor signal conditioning requiring stable component supply, consistent parametric performance, and full RoHS compliance.
Supply support for SMBG5342C/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.
SMBG5342C/TR13 belongs to Microsemi's SMBG-series 5 W Zener diodes, engineered for precision voltage regulation in space-constrained, high-surge environments where thermal robustness and process consistency are critical.
FAQ
What is the Zener voltage tolerance of SMBG5342C/TR13?
The SMBG5342C/TR13 has a Zener voltage tolerance of ±2%, meaning its breakdown voltage is guaranteed between 6.664 V and 6.936 V when tested at 175 mA and 30 °C lead temperature. This tight tolerance supports high-accuracy feedback and reference applications where stability across temperature and current is essential. The 'C' suffix in SMBG5342C/TR13 explicitly denotes the ±2% grade per Microsemi's nomenclature.
Can SMBG5342C/TR13 be used in place of 1N5342B?
Yes, SMBG5342C/TR13 is electrically equivalent to 1N5342B per Microsemi documentation, sharing identical VZ, IZT, ZZT, IZM, and surge ratings. However, SMBG5342C/TR13 uses a DO-215AA gull-wing surface-mount package versus the axial T-18 package of 1N5342B, so PCB footprint and assembly process differ. No electrical redesign is needed, but mechanical layout must be updated.
What is the maximum power dissipation of SMBG5342C/TR13?
SMBG5342C/TR13 is rated for 5.0 W off-state power dissipation at lead temperature (TL) < 25 °C. At ambient temperature (TA) = 25 °C on FR4 with recommended footprint, derated power is 1.38 W. Thermal resistance junction-to-lead is 25 °C/W, so effective power handling depends on PCB copper area and thermal vias - not ambient convection.
Is SMBG5342C/TR13 RoHS compliant?
Yes, SMBG5342C/TR13 is RoHS compliant, as confirmed by the 'e3' marking designation and matte-tin plating per Microsemi's specification. The 'C' suffix indicates ±2% voltage tolerance, while RoHS compliance is inherent to the standard production version - no additional suffix is required beyond the base part number.
What is the surge current rating for SMBG5342C/TR13?
SMBG5342C/TR13 has a non-repetitive peak surge current (IZSM) rating of 11.5 A for an 8.3 ms half-sine waveform. This value is validated per JEDEC test conditions and reflects the device's ability to absorb transient energy without parametric shift or catastrophic failure - critical for protecting downstream components in power supply and interface circuits.
SMBG5342C/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):
- 6.8 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 1 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 4.9 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)
SMBG5342C/TR13 FAQ
1.How can I place an order for SMBG5342C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5342C/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 SMBG5342C/TR13 reliable?
The price and inventory of SMBG5342C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5342C/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5342C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5342C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5342C/TR13?
SMBG5342C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5342C/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 SMBG5342C/TR13?
For technical support, including SMBG5342C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5342C/TR13 requirements.
6.How does Aetrix verify that SMBG5342C/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5342C/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 SMBG5342C/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5342C/TR13?
All SMBG5342C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5342C/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 SMBG5342C/TR13 part is unused and in its original packaging.
Return procedure for SMBG5342C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5342C/TR13 Tags
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MM5Z5V1ST1G
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