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Microchip Technology SMBG5344BE3/TR13
- Part No.:
- SMBG5344BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5344BE3/TR13.pdf
- Description:
- DIODE ZENER 8.2V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,661
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Product details
Overview
SMBG5344BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 8.2 V, ±5% tolerance (B suffix), 150 mA test current (IZT), 1.5 Ω dynamic impedance (ZZT), and DO-215AA gull-wing package. It regulates voltage in power supply reference and overvoltage protection circuits across industrial temperature range.
For engineers reviewing the SMBG5344BE3/TR13 datasheet, SMBG5344BE3/TR13 pinout, SMBG5344BE3/TR13 application, or SMBG5344BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current capability (10 A IZSM), thermal resistance (25 °C/W junction-to-lead), and RoHS-compliant matte-tin plating for lead-free assembly.
Technical Context
This device operates as a precision voltage reference in reverse-biased breakdown mode, maintaining stable 8.2 V output across 10 mA to 150 mA operating current. Its low dynamic impedance (1.5 Ω) ensures minimal voltage variation under load transients.
The DO-215AA gull-wing package provides visible solder joints and 25 °C/W junction-to-lead thermal resistance, enabling reliable 5 W dissipation at lead temperature <25 °C. It meets MIL-STD-750 ESD immunity and IPC/JEDEC J-STD-020B Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.2 V ±5% at 150 mA - defines precise regulation point for feedback loops |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - supports high-energy clamping without heatsink |
| Dynamic Impedance (ZZT) | 1.5 Ω at 150 mA - ensures <20 mV output shift per 30 mA load change |
| Max Surge Current (IZSM) | 10 A (8.3 ms half-sine) - withstands IEC 61000-4-5 line surges |
| Junction Temperature Range | –65 to +150 °C - enables operation in automotive under-hood and industrial control environments |
| Thermal Resistance (RθJL) | 25 °C/W - allows direct PCB copper pour heat spreading without thermal vias |
| Reverse Leakage (IR) | 10 µA at 5.9 V - guarantees low quiescent current in battery-backed systems |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; banded end must be held positive relative to anode during operation. Weight: 0.1 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Breakdown terminal | Connected to regulated voltage rail; reverse bias establishes Zener conduction |
| Anode (unbanded end) | Reference terminal | Connected to ground or lower-potential node; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5344B equivalent | Direct functional replacement for legacy through-hole design without circuit redesign |
| RoHS-compliant matte-tin plating | Enables lead-free reflow soldering per JEDEC J-STD-020B Level 1 (no dry pack required) |
| Gull-wing lead form | Provides visual solder joint inspection and mechanical strain relief on FR4 boards |
| 25 °C/W RθJL | Supports full 5 W power handling using only PCB copper area-no external heatsink needed |
| 10 A non-repetitive surge rating | Clamps transient energy per IEC 61000-4-5 Level 4 without degradation |
Applications
| Power Supply Reference | Overvoltage Protection |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converter secondary-side regulation. IC Role / Device Role / Timing Role: Precision shunt reference providing 8.2 V setpoint to optocoupler input. Use Value: Maintains ±1% output regulation across –40 to +125 °C ambient with <1.5 Ω dynamic impedance limiting error drift. |
Use Scenario: Clamping induced surges on 12 V automotive sensor supply lines. IC Role / Device Role / Timing Role: Transient voltage suppressor diverting >10 A surge current away from downstream ASICs. Use Value: Absorbs 8.3 ms half-sine surges up to 10 A without parameter shift or failure per ISO 7637-2. |
| Industrial Sensor Excitation | Programmable Logic Controller Input Conditioning |
Use Scenario: Providing stable 8.2 V excitation to resistive bridge sensors in factory automation. IC Role / Device Role / Timing Role: Low-noise voltage reference sourcing constant current to Wheatstone bridge. Use Value: Delivers <10 ppm/°C TC stability and <10 µA leakage to preserve 16-bit ADC resolution. |
Use Scenario: Level-shifting and protecting 24 V digital inputs against field-wiring faults. IC Role / Device Role / Timing Role: Shunt regulator clamping input voltage to safe 8.2 V during 30 V transients. Use Value: Limits input stress to downstream Schmitt trigger with 150 mA IZM sustaining continuous fault current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5344B | Axial-leaded T-18 package; identical electrical specs but higher RθJA (125 °C/W) | Requires through-hole mounting and heatsinking for 5 W operation | Select when legacy board layout prohibits SMT or thermal vias are impractical |
| SMBJ5344B | DO-214AA J-bend package; same VZ/IZT but 30% higher RθJA (117 °C/W) | Limited to ≤3.5 W continuous dissipation on standard FR4 without copper pour | Select when footprint compatibility with SMBJ series is required and power <4 W |
Compared with SMBG5344BE3/TR13, 1N5344B demands PCB redesign and thermal management, while SMBJ5344B sacrifices 30% power headroom on standard layouts-SMBG5344BE3/TR13 uniquely balances SMT density, 5 W capability, and gull-wing manufacturability.
Availability
SMBG5344BE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor interfaces, programmable logic controller input stages, and test equipment requiring stable component supply with RoHS compliance and tape-and-reel delivery.
Supply support for SMBG5344BE3/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 (now part of Microchip Technology) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The SMBG53xxB series targets surface-mount voltage regulation in space-constrained, high-surge environments where gull-wing visibility and Level 1 moisture robustness are critical.
FAQ
What is the Zener voltage tolerance of SMBG5344BE3/TR13?
The SMBG5344BE3/TR13 has a ±5% Zener voltage tolerance, confirmed by the "B" suffix in its part number and specified in the Electrical Characteristics table on page 3 of the Microsemi datasheet T4-LDS-0246-1. This means its actual VZ falls between 7.79 V and 8.61 V at 150 mA test current, ensuring predictable regulation in feedback networks.
Does SMBG5344BE3/TR13 require dry-pack packaging per J-STD-020B?
No, SMBG5344BE3/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it may be stored indefinitely at ambient conditions without dry-pack desiccant or humidity-controlled environment. This eliminates baking steps prior to reflow, reducing manufacturing cost and risk of popcorn cracking.
What is the maximum continuous power dissipation for SMBG5344BE3/TR13 on FR4?
When mounted on FR4 with 1 oz copper and the recommended pad layout, SMBG5344BE3/TR13 delivers 1.38 W at 25 °C ambient (TA), per Note 2 in the Maximum Ratings table. Full 5 W operation requires lead temperature (TL) maintained below 25 °C via copper pour or thermal vias-critical for sustained surge duty cycles.
How does the gull-wing lead form of SMBG5344BE3/TR13 benefit automated optical inspection?
The gull-wing leads of SMBG5344BE3/TR13 extend laterally from the package body, allowing AOI systems to directly image solder fillet geometry and wetting angle without shadowing. This improves first-pass yield in high-volume SMT lines and reduces false calls compared to J-bend or flat-lead packages.
Is SMBG5344BE3/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5344BE3/TR13 features RoHS-compliant annealed matte-tin plating rated for 260 °C solder temperature (10 s), fully supporting industry-standard lead-free reflow profiles including JEDEC J-STD-020D. Its Level 1 moisture rating further eliminates pre-bake requirements before reflow.
SMBG5344BE3/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):
- 8.2 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 1.5 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 5.9 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)
SMBG5344BE3/TR13 FAQ
1.How can I place an order for SMBG5344BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5344BE3/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 SMBG5344BE3/TR13 reliable?
The price and inventory of SMBG5344BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5344BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5344BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5344BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5344BE3/TR13?
SMBG5344BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5344BE3/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 SMBG5344BE3/TR13?
For technical support, including SMBG5344BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5344BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5344BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5344BE3/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 SMBG5344BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5344BE3/TR13?
All SMBG5344BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5344BE3/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 SMBG5344BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5344BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5344BE3/TR13 Tags
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MM5Z5V1ST1G
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