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Microchip Technology SMBG5347B/TR13
- Part No.:
- SMBG5347B/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5347B/TR13.pdf
- Description:
- DIODE ZENER 10V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,216
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Product details
Overview
SMBG5347B/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 10 V ±5%, dynamic impedance of 2.0 Ω at 125 mA test current, maximum regulator current of 475 mA, and DO-215AA gull-wing package. It serves as a precision voltage reference and overvoltage clamp in power supply regulation and transient protection circuits.
For engineers reviewing the SMBG5347B/TR13 datasheet, SMBG5347B/TR13 pinout, SMBG5347B/TR13 application, or SMBG5347B/TR13 equivalent, key selection criteria include Zener voltage tolerance, surge current rating (8.6 A), thermal resistance (90 °C/W junction-to-ambient), and RoHS-compliant matte-tin plating for lead-free assembly.
Technical Context
This device operates in reverse-biased breakdown mode with stable regulation across 10 mA to 475 mA DC current and -65 °C to +150 °C junction temperature range. Its low dynamic impedance (2.0 Ω) ensures minimal voltage variation under load changes, while the 8.6 A non-repetitive surge current rating supports transient suppression per IEC 61000-4-5.
The DO-215AA gull-wing package provides visible solder joints and IPC/JEDEC Level 1 moisture sensitivity-no dry pack required. Thermal performance is specified for FR4 board mounting with 1 oz copper and recommended pad layout, delivering 5.0 W at lead temperature <25 °C or 1.38 W at ambient 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10 V ±5% at 125 mA - defines precise clamping threshold for voltage regulation |
| Power Dissipation (PD) | 5.0 W @ TL < 25 °C - requires thermal management on PCB for full-power operation |
| Dynamic Impedance (ZZT) | 2.0 Ω @ 125 mA - ensures ≤200 mV output shift for ±250 mA load change |
| Max Regulator Current (IZM) | 475 mA - sets upper DC current limit before thermal runaway |
| Surge Current (IZSM) | 8.6 A (8.3 ms half-sine) - withstands common lightning-induced transients |
| Reverse Leakage (IR) | 5.0 µA @ 7.2 V - negligible standby power loss in high-impedance bias networks |
| Junction Temp Range | -65 °C to +150 °C - supports automotive under-hood and industrial control environments |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; operated with banded end positive relative to anode. Moisture sensitivity level 1 - no dry pack required prior to reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink terminal in reverse bias | Connected to lower-potential node (e.g., ground or return path) during regulation |
| Cathode | Current source terminal in reverse bias | Banded end; connected to regulated voltage rail or protected IC input |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5347B equivalent | Identical electrical specs and test methods - enables drop-in replacement for legacy through-hole designs |
| RoHS-compliant matte-tin plating | Meets IPC-J-STD-020B Level 1 - eliminates pre-bake requirement and supports lead-free reflow |
| Gull-wing lead form | Visible solder joints on DO-215AA - enables automated optical inspection (AOI) without X-ray |
| High surge current capability | 8.6 A non-repetitive peak - protects downstream circuitry against IEC 61000-4-5 Level 4 surges |
| Stable voltage vs. current | 2.0 Ω dynamic impedance - maintains regulation within ±100 mV over 10–475 mA operating range |
Applications
| Power Supply Regulation | Overvoltage Protection |
|---|---|
Use Scenario: Stabilizing 12 V rail in DC-DC converter feedback loop with ±5% tolerance requirement. IC Role / Device Role / Timing Role: Precision voltage reference for error amplifier input. Use Value: 10 V ±5% Zener voltage and 2.0 Ω dynamic impedance ensure feedback accuracy within ±0.5% over temperature and load. |
Use Scenario: Clamping microcontroller I/O pins against ESD and inductive switching transients. IC Role / Device Role / Timing Role: Shunt protector diverting surge energy to ground. Use Value: 8.6 A surge rating and 10 V clamping threshold prevent latch-up in 3.3 V/5 V logic interfaces. |
| Industrial Sensor Biasing | Automotive Lighting Control |
Use Scenario: Providing stable excitation voltage for bridge-based pressure sensors in PLC analog inputs. IC Role / Device Role / Timing Role: Low-drift voltage reference for ratiometric measurement. Use Value: -65 °C to +150 °C operating range and 5.0 µA leakage at 7.2 V ensure accuracy in unconditioned enclosures. |
Use Scenario: Regulating gate drive voltage for MOSFETs controlling LED headlamps in 12 V vehicle systems. IC Role / Device Role / Timing Role: Clamp preventing gate oxide damage during load dump events. Use Value: 5.0 W power rating and DO-215AA thermal resistance (90 °C/W) sustain 12 V load dump pulses without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5347B | Same electrical specs, axial-leaded T-18 package | Requires through-hole assembly; higher thermal resistance (125 °C/W) | Select when legacy board compatibility or manual prototyping is prioritized over density |
| SMBJ5347B | Identical Zener parameters, DO-214AA J-bend package | Lower profile but less visible solder joint; same moisture level | Select when board height constraint is tighter than AOI visibility requirement |
Compared with SMBG5347B/TR13, 1N5347B trades surface-mount density for through-hole robustness and easier hand-soldering, while SMBJ5347B offers identical regulation performance in a lower-profile J-bend package-neither is pin-compatible due to differing leadforms and footprint geometry.
Availability
SMBG5347B/TR13 is available at Aetrix Electronics and suitable for power supply regulation, overvoltage protection, and industrial sensor biasing requiring stable component supply across automotive, industrial control, and embedded systems design cycles.
Supply support for SMBG5347B/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 to deliver JEDEC-identical Zener performance in surface-mount form for high-density power management and protection in harsh-environment electronics.
FAQ
What is the Zener voltage tolerance for SMBG5347B/TR13?
The SMBG5347B/TR13 has a Zener voltage tolerance of ±5%, meaning its breakdown voltage is guaranteed between 9.5 V and 10.5 V when measured at 125 mA test current and 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the Microsemi datasheet T4-LDS-0246-1, where "B" suffix denotes ±5% specification. The SMBG5347B/TR13 must be biased within its specified current range to maintain this tolerance in circuit operation.
Does SMBG5347B/TR13 require dry packing before reflow soldering?
No, SMBG5347B/TR13 does not require dry packing before reflow soldering because it carries IPC/JEDEC J-STD-020B moisture sensitivity level 1. This classification is explicitly stated in the Applications/Benefits section and Maximum Ratings table of the Microsemi datasheet. The SMBG5347B/TR13 can be stored and processed directly from sealed tape-and-reel packaging without baking, simplifying manufacturing flow for lead-free assembly.
What is the maximum surge current rating for SMBG5347B/TR13?
The SMBG5347B/TR13 has a maximum non-repetitive Zener surge current (IZSM) of 8.6 A for an 8.3 ms half-sine waveform, as specified in the Electrical Characteristics table on page 3 of the Microsemi datasheet. This rating applies under defined test conditions and supports transient suppression in applications such as load dump protection and ESD clamping, provided the device is mounted per the recommended FR4 footprint.
Is SMBG5347B/TR13 RoHS compliant?
Yes, SMBG5347B/TR13 is RoHS compliant, using annealed matte-tin plating as confirmed in the Mechanical and Packaging section of the Microsemi datasheet. The "e3" marking variant (e.g., SMBG5347Be3/TR13) explicitly denotes RoHS compliance, and the standard SMBG5347B/TR13 shipped by Microsemi meets RoHS Directive 2011/65/EU requirements for lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE content.
How does the thermal resistance of SMBG5347B/TR13 affect its power handling?
The SMBG5347B/TR13 has a junction-to-ambient thermal resistance (RθJA) of 90 °C/W when mounted on FR4 with 1 oz copper and the recommended pad layout. This means that at 25 °C ambient, the device can dissipate only 1.38 W continuously without exceeding its 150 °C max junction temperature-despite its 5.0 W rating at lead temperature <25 °C. Proper thermal design using the specified footprint is essential to avoid thermal runaway in the SMBG5347B/TR13.
SMBG5347B/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):
- 10 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 7.2 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)
SMBG5347B/TR13 FAQ
1.How can I place an order for SMBG5347B/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5347B/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 SMBG5347B/TR13 reliable?
The price and inventory of SMBG5347B/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5347B/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5347B/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5347B/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5347B/TR13?
SMBG5347B/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5347B/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 SMBG5347B/TR13?
For technical support, including SMBG5347B/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5347B/TR13 requirements.
6.How does Aetrix verify that SMBG5347B/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5347B/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 SMBG5347B/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5347B/TR13?
All SMBG5347B/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5347B/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 SMBG5347B/TR13 part is unused and in its original packaging.
Return procedure for SMBG5347B/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5347B/TR13 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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