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Microchip Technology SMBG5347AE3/TR13
- Part No.:
- SMBG5347AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5347AE3/TR13.pdf
- Description:
- DIODE ZENER 10V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,173
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Product details
Overview
SMBG5347AE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 10 V, ±10% tolerance (A-suffix), rated for 475 mA maximum regulator current (IZM), and packaged in DO-215AA gull-wing configuration. It regulates voltage across wide operating current and temperature ranges (-65 °C to +150 °C) and is used in power supply overvoltage protection circuits.
For engineers reviewing the SMBG5347AE3/TR13 datasheet, SMBG5347AE3/TR13 pinout, SMBG5347AE3/TR13 application, or SMBG5347AE3/TR13 equivalent, this page delivers verified electrical parameters, JEDEC-compliant mechanical data, thermal derating behavior, RoHS-compliant plating details, and validated alternative parts for voltage reference and clamping designs.
Technical Context
This device operates as a precision voltage reference in reverse-biased breakdown mode, with dynamic impedance of 2.0 Ω at 150 mA test current (IZT) and knee impedance of 200 Ω at 1.0 mA. Its Zener voltage is specified at TL = 30 °C with 40 ±10 ms measurement delay after DC current application.
Thermal performance is defined by RθJL = 25 °C/W (junction-to-lead) and RθJA = 90 °C/W (junction-to-ambient on FR4 with recommended footprint). Power dissipation is 5.0 W at lead temperature < 25 °C, derating linearly above that per Figure 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10 V ±10% - stable regulation point under 125 mA test current (IZT), with 7.2 V to 12.4 V operational range. |
| Max Regulator Current (IZM) | 475 mA - maximum continuous DC current delivering full 5 W power at VZ = 10.5 V (upper tolerance limit). |
| Dynamic Impedance (ZZT) | 2.0 Ω - low AC impedance at 150 mA IZT, ensuring minimal voltage variation under load transients. |
| Reverse Leakage (IR) | 5.0 µA max at 7.2 V - tight leakage specification enabling low-power standby regulation. |
| Thermal Resistance (RθJL) | 25 °C/W - enables efficient heat transfer to PCB copper via gull-wing leads, critical for sustained 5 W operation. |
| Junction Temperature Range | -65 °C to +150 °C - supports industrial and automotive under-hood applications without derating. |
| Moisture Sensitivity Level | Level 1 per J-STD-020B - no dry pack required, simplifying SMT handling and storage logistics. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; operated with banded end positive relative to anode. Leads are RoHS-compliant matte-tin plated, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink terminal in reverse bias | Connected to system ground or lower-potential node during Zener regulation/clamping. |
| Cathode | Current source terminal in reverse bias | Banded end; connected to regulated rail or protected node; defines polarity for correct orientation on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5347B equivalence | Identical electrical characteristics and testing to through-hole 1N5347B, enabling drop-in replacement in legacy designs. |
| Gull-wing lead geometry | Enables visual solder joint inspection and high-density placement on compact PCBs without J-bend shadowing. |
| Level 1 moisture sensitivity | Eliminates baking requirements before reflow, reducing manufacturing cycle time and cost. |
| High surge current rating | 8.6 A non-repetitive half-sine surge (8.3 ms) provides robust transient overvoltage protection in power rails. |
| RoHS-compliant matte-tin plating | Meets EU Directive 2011/65/EU and supports Pb-free assembly processes without sacrificing solderability. |
Applications
| Power Supply Overvoltage Clamp | DC-DC Converter Feedback Reference |
|---|---|
Use Scenario: Protects downstream ICs from input voltage surges exceeding 12 V in 12 V automotive or industrial power supplies. IC Role / Device Role / Timing Role: Zener diode clamps rail voltage by conducting excess current when input exceeds 10 V ±10%, diverting energy to ground. Use Value: Prevents damage to 5 V or 3.3 V logic with 8.6 A surge capability and <5 µA leakage at 7.2 V. |
Use Scenario: Provides stable reference voltage for error amplifier feedback in isolated flyback converters. IC Role / Device Role / Timing Role: Sets output voltage threshold by injecting precise current into optocoupler LED circuit based on regulated 10 V reference. Use Value: Enables ±1% output regulation accuracy using 2.0 Ω dynamic impedance and tight 10 V ±10% tolerance. |
| ESD Protection Interface | Microcontroller I/O Voltage Limiter |
Use Scenario: Shields USB or CAN bus transceivers from electrostatic discharge events up to ±15 kV per IEC 61000-4-2. IC Role / Device Role / Timing Role: Acts as bidirectional clamp between signal line and ground, conducting ESD current away from sensitive inputs. Use Value: Withstands high surge stresses and exhibits non-sensitive ESD behavior per MIL-STD-750 Method 1020. |
Use Scenario: Limits GPIO voltage to safe levels during hot-plug or fault conditions in embedded control systems. IC Role / Device Role / Timing Role: Clamps microcontroller I/O pins to ≤12.4 V (VZMAX) during overvoltage events, preventing latch-up or gate oxide damage. Use Value: Delivers fast response with minimal voltage overshoot due to low 2.0 Ω ZZT and 150 mA IZT test point. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5347B | Through-hole DO-41 package; identical VZ, IZM, and ZZT; no RoHS compliance by default. | Requires axial-leaded PCB layout and wave soldering; unsuitable for high-density SMT lines. | Select when legacy through-hole assembly is mandated or thermal mass from lead-frame improves heat dissipation in low-volume prototypes. |
| SMBJ5347B | Same Zener specs but in DO-214AA (J-bend) package; RθJA = 100 °C/W vs. 90 °C/W; same RoHS option (e3 suffix). | Higher thermal resistance reduces sustained power capability on standard FR4; less visible solder joints. | Choose only if existing J-bend footprint is fixed and board space constraints preclude gull-wing rework. |
Compared with SMBG5347AE3/TR13, 1N5347B offers identical regulation but requires manual or wave soldering and lacks RoHS assurance, while SMBJ5347B sacrifices thermal performance and visual inspection capability for J-bend compatibility-making SMBG5347AE3/TR13 optimal for automated, high-reliability SMT production.
Availability
SMBG5347AE3/TR13 is available at Aetrix Electronics and suitable for power supply overvoltage clamping, DC-DC converter feedback referencing, and microcontroller I/O voltage limiting requiring stable component supply, RoHS compliance, and gull-wing manufacturability.
Supply support for SMBG5347AE3/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.
The SMBG53xxB series was designed specifically for surface-mount voltage regulation and transient suppression in space-constrained, high-surge environments where JEDEC-compatibility and visual solder inspection are critical.
FAQ
What is the Zener voltage tolerance for SMBG5347AE3/TR13?
The 'A' suffix in SMBG5347AE3/TR13 indicates a ±10% Zener voltage tolerance, meaning its nominal 10 V rating spans 9.0 V to 11.0 V at 125 mA test current and 30 °C lead temperature. This tolerance is confirmed in the Electrical Characteristics table on Page 3 of T4-LDS-0246-1 Rev. 1, where SMBG5347B (same voltage grade) shows VZ = 10 V with A-suffix tolerance column.
Is SMBG5347AE3/TR13 RoHS compliant?
Yes, SMBG5347AE3/TR13 is RoHS compliant, as indicated by the 'e3' suffix per Microsemi's nomenclature guide. The device uses annealed matte-tin plating per MIL-STD-750 Method 2026 and meets EU Directive 2011/65/EU, with no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE substances above threshold limits.
What is the maximum continuous current SMBG5347AE3/TR13 can handle?
SMBG5347AE3/TR13 supports a maximum regulator current (IZM) of 475 mA at its upper Zener voltage limit (10.5 V) under 5 W power dissipation at lead temperature < 25 °C. This value is explicitly listed in the Electrical Characteristics table for SMBG5347B (A/B/C suffix group) on Page 3 of the datasheet.
Does SMBG5347AE3/TR13 require dry packing before reflow soldering?
No, SMBG5347AE3/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it may be stored indefinitely at ambient conditions without dry packing or baking prior to reflow. This is stated in both the Applications/Benefits section and Maximum Ratings table of the datasheet.
What package type does SMBG5347AE3/TR13 use?
SMBG5347AE3/TR13 uses the DO-215AA gull-wing surface-mount package, as confirmed in the Mechanical and Packaging section and Package Dimensions drawing on Page 5 of T4-LDS-0246-1. Its dimensions include A = 1.96–2.10 mm, B = 4.06–4.57 mm, and C = 3.30–3.94 mm, with gull-wing leads for visual solder inspection.
SMBG5347AE3/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:
- ±10%
- 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)
SMBG5347AE3/TR13 FAQ
1.How can I place an order for SMBG5347AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5347AE3/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 SMBG5347AE3/TR13 reliable?
The price and inventory of SMBG5347AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5347AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5347AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5347AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5347AE3/TR13?
SMBG5347AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5347AE3/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 SMBG5347AE3/TR13?
For technical support, including SMBG5347AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5347AE3/TR13 requirements.
6.How does Aetrix verify that SMBG5347AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5347AE3/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 SMBG5347AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5347AE3/TR13?
All SMBG5347AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5347AE3/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 SMBG5347AE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5347AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5347AE3/TR13 Tags
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