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Microchip Technology SMBG5347CE3/TR13
- Part No.:
- SMBG5347CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5347CE3/TR13.pdf
- Description:
- DIODE ZENER 10V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,464
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Product details
Overview
SMBG5347CE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 10 V, ±2% tolerance (C suffix), rated test current of 125 mA, maximum dynamic impedance of 2.0 Ω at IZT, and maximum regulator current of 475 mA - used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5347CE3/TR13 datasheet, SMBG5347CE3/TR13 pinout, SMBG5347CE3/TR13 application, or SMBG5347CE3/TR13 equivalent, this part serves as a RoHS-compliant, gull-wing DO-215AA packaged Zener with verified thermal resistance (RθJL = 25 °C/W), surge current rating (IZSM = 8.6 A), and moisture sensitivity level 1 handling.
Technical Context
This device operates in reverse-biased breakdown mode to maintain stable output voltage across wide current (125 mA to 475 mA) and temperature (-65 °C to +150 °C) ranges. Its low dynamic impedance (2.0 Ω) ensures minimal voltage variation under load transients.
The SMBG5347CE3/TR13 uses a void-free thermosetting epoxy case (UL94V-0), matte-tin plating per MIL-STD-750 method 2026, and cathode polarity marked by a band - requiring the banded end to be biased positive relative to the anode during operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10 V ±2% at 125 mA - defines precise regulation point for feedback networks |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management via lead-to-board conduction |
| Dynamic Impedance (ZZT) | 2.0 Ω max at 125 mA - ensures <10 mV output shift per 20 mA load change |
| Max Regulator Current (IZM) | 475 mA - sets upper limit for continuous DC bias without exceeding PD |
| Surge Current (IZSM) | 8.6 A (8.3 ms half-sine) - withstands transient overvoltage events in power rails |
| Junction Temp Range | -65 °C to +150 °C - supports industrial and automotive under-hood environments |
| Thermal Resistance (RθJL) | 25 °C/W - enables direct heat transfer from junction to PCB copper via leads |
Pinout & Package
DO-215AA gull-wing surface-mount package with two terminals: cathode (banded end) and anode. Designed for visible solder joints and high-density PCB layouts on FR4 with 1 oz Cu.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased terminal | Connected to regulated voltage node; must be held at higher potential than anode |
| Anode | Reference/ground terminal | Typically tied to system ground or feedback reference point in switching regulators |
Key Features
| Feature | Design Value |
|---|---|
| RoHS-compliant matte-tin plating | Meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity - no dry pack required |
| Gull-wing lead form | Enables visual solder joint inspection and reduces tombstoning risk on fine-pitch layouts |
| ±2% Zener voltage tolerance (C suffix) | Supports tighter regulation accuracy than ±5% (B) or ±10% (A) variants |
| High surge current rating | 8.6 A non-repetitive peak withstand capability - suitable for input-stage clamping |
| Low dynamic impedance | 2.0 Ω at 125 mA - minimizes output voltage drift during line/load transients |
Applications
| Switching Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback or forward converter feedback paths using optocoupler-coupled error amplifiers. IC Role / Device Role / Timing Role: Precision voltage reference element providing stable 10 V threshold for error amplifier bias and compensation. Use Value: ±2% tolerance and 2.0 Ω dynamic impedance ensure <±1% output regulation accuracy across 0–100% load range. |
Use Scenario: Clamps transient overvoltages on 12 V DC bus lines in automotive body control modules. IC Role / Device Role / Timing Role: Shunt protection device that conducts excess energy to ground when bus exceeds 10.2 V. Use Value: 8.6 A surge rating and 5 W steady-state dissipation handle ISO 7637-2 pulse 1/2a events without failure. |
| Industrial Sensor Signal Conditioning | Programmable Reference Voltage Source |
Use Scenario: Provides stable 10 V reference for 12-bit ADC front-end circuits in PLC analog input modules. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage reference replacing higher-cost bandgap ICs in cost-sensitive designs. Use Value: 25 °C/W junction-to-lead thermal resistance allows stable operation without heatsinking at ≤300 mW bias. |
Use Scenario: Sets adjustable threshold in comparator-based battery charge termination circuits for 3S Li-ion packs. IC Role / Device Role / Timing Role: Programmable reference node where Zener voltage defines cutoff voltage (e.g., 12.6 V = 4.2 V/cell × 3). Use Value: Tight ±2% tolerance eliminates need for post-assembly calibration; 125 mA IZT ensures stable bias under varying load conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5347B | Axial-leaded T-18 package; same 10 V ±5%, 5 W rating but higher RθJA (125 °C/W vs. 90 °C/W) | Requires through-hole mounting and larger board area; less suitable for high-density SMT designs | Select when legacy through-hole assembly or manual prototyping is required |
| SMBJ5347C | DO-214AA (J-bend) package; identical electrical specs but different thermal path (RθJL = 30 °C/W vs. 25 °C/W) | Lower lead-to-board thermal efficiency; may require larger copper pour for same power handling | Select when existing footprint uses DO-214AA or when gull-wing rework accessibility is not critical |
Compared with SMBG5347CE3/TR13, the 1N5347B offers mechanical robustness in through-hole applications but sacrifices board space and thermal performance, while the SMBJ5347C provides identical regulation performance in a lower-profile J-bend package at the cost of slightly reduced thermal conduction efficiency.
Availability
SMBG5347CE3/TR13 is available at Aetrix Electronics and suitable for switching power supplies, overvoltage protection circuits, industrial sensor signal conditioning, and programmable reference voltage sources requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG5347CE3/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 SMBG53xx series was designed specifically for surface-mount voltage regulation in space-constrained, thermally demanding power systems - emphasizing manufacturability, moisture resilience, and surge survivability.
FAQ
What is the Zener voltage tolerance for SMBG5347CE3/TR13?
The SMBG5347CE3/TR13 has a Zener voltage tolerance of ±2%, indicated by the "C" suffix in the part number. This means its measured VZ falls between 9.8 V and 10.2 V when tested at 125 mA and 25 °C. This tight tolerance supports precision regulation tasks where reference stability is critical, such as in feedback loops of DC-DC converters. The SMBG5347CE3/TR13 achieves this specification under JEDEC-standard test conditions defined in Microsemi's T4-LDS-0246-1 datasheet.
Does SMBG5347CE3/TR13 require dry packing before reflow soldering?
No, SMBG5347CE3/TR13 does not require dry packing prior to reflow soldering. It carries IPC/JEDEC J-STD-020B moisture sensitivity level 1 classification, confirmed by its plastic encapsulation and void-free epoxy construction. This allows indefinite floor life at ≤30 °C/60% RH without baking. The SMBG5347CE3/TR13 can be mounted directly after tape-and-reel unloading, provided standard reflow profiles (peak 260 °C for 10 s) are followed per Microsemi's packaging documentation.
What is the maximum continuous current SMBG5347CE3/TR13 can handle at 25 °C ambient?
At 25 °C ambient temperature on a standard FR4 PCB with recommended footprint, SMBG5347CE3/TR13 is rated for 1.38 W continuous dissipation, corresponding to approximately 138 mA at 10 V. However, its absolute maximum regulator current (IZM) is 475 mA - achievable only when lead temperature (TL) is maintained below 25 °C via thermal vias or copper flooding. The SMBG5347CE3/TR13 datasheet specifies derating above 25 °C ambient, with full 5 W operation limited to cases where TL remains ≤25 °C.
Can SMBG5347CE3/TR13 replace SMBG5347B in an existing design?
Yes, SMBG5347CE3/TR13 can replace SMBG5347B electrically and mechanically, but with improved voltage tolerance (±2% vs. ±5%) and RoHS compliance (e3 plating). Both share identical DO-215AA package dimensions, pinout, and thermal characteristics. The SMBG5347CE3/TR13 maintains the same 10 V nominal Zener voltage and 125 mA test current, making it a drop-in upgrade for designs requiring tighter regulation or environmental compliance - no layout or schematic changes are needed.
What is the surge current rating of SMBG5347CE3/TR13 and how is it defined?
The SMBG5347CE3/TR13 has a non-repetitive peak surge current (IZSM) rating of 8.6 A, defined per Microsemi's T4-LDS-0246-1 as the maximum allowable current for a single 8.3 ms half-sine waveform. This rating reflects the device's ability to absorb transient energy without degradation, making it suitable for clamping ISO 7637-2 pulses or lightning-induced surges. The SMBG5347CE3/TR13 achieves this performance due to its 5 W power rating and optimized silicon junction design, validated under JEDEC test methods.
SMBG5347CE3/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:
- ±2%
- 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)
SMBG5347CE3/TR13 FAQ
1.How can I place an order for SMBG5347CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5347CE3/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 SMBG5347CE3/TR13 reliable?
The price and inventory of SMBG5347CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5347CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5347CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5347CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5347CE3/TR13?
SMBG5347CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5347CE3/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 SMBG5347CE3/TR13?
For technical support, including SMBG5347CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5347CE3/TR13 requirements.
6.How does Aetrix verify that SMBG5347CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5347CE3/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 SMBG5347CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5347CE3/TR13?
All SMBG5347CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5347CE3/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 SMBG5347CE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5347CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5347CE3/TR13 Tags
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BZX84C3V3LT1G
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MM5Z5V1ST1G
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