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Microchip Technology SMBG5347BE3/TR13
- Part No.:
- SMBG5347BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5347BE3/TR13.pdf
- Description:
- DIODE ZENER 10V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,546
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Product details
Overview
SMBG5347BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 10 V, ±5% tolerance (B suffix), RoHS-compliant matte-tin plating (e3), and DO-215AA gull-wing package. It regulates voltage across wide current and temperature ranges, supports surge currents up to 8.6 A (8.3 ms half-sine), and is used in power supply overvoltage protection and reference circuits.
For engineers reviewing the SMBG5347BE3/TR13 datasheet, SMBG5347BE3/TR13 pinout, SMBG5347BE3/TR13 application, or SMBG5347BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, maximum regulator current (475 mA), thermal resistance (90 °C/W on FR4), and compliance with JEDEC 1N5347B specifications.
Technical Context
This device operates as a precision voltage reference and shunt regulator in reverse-biased mode, with cathode band marking polarity. Its dynamic impedance is 2.0 Ω at 150 mA test current (IZT), and knee impedance is 200 Ω at 1.0 mA (IZK), ensuring stable regulation near breakdown threshold.
Designed for surface-mount high-density PCBs, it features moisture sensitivity level 1 (no dry pack required), withstands 260 °C soldering for 10 s, and delivers 5.0 W dissipation only when lead temperature (TL) is maintained below 25 °C - derating applies above that point per Figure 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10 V ±5% at 125 mA - defines precise clamping/reference point under nominal regulation current |
| Maximum Regulator Current (IZM) | 475 mA - maximum continuous DC current before exceeding 5 W power limit at TL ≤ 25 °C |
| Dynamic Impedance (ZZT) | 2.0 Ω at IZT = 150 mA - low AC impedance ensures minimal voltage variation under dynamic load changes |
| Reverse Leakage (IR) | 5.0 µA max at VR = 7.2 V - confirms tight leakage control below breakdown, critical for low-power bias networks |
| Surge Current (IZSM) | 8.6 A peak (8.3 ms half-sine) - enables transient overvoltage suppression without failure |
| Thermal Resistance (RθJA) | 90 °C/W on FR4 (1 oz Cu, recommended footprint) - determines safe ambient operating temperature ceiling |
| Junction Temperature Range | –65 °C to +150 °C - supports industrial and automotive under-hood environments |
Pinout & Package
DO-215AA gull-wing surface-mount package with two terminals: anode and cathode. Cathode identified by molded band; device operated with banded end positive relative to anode. Package dimensions: A = 1.96–2.10 mm, B = 4.06–4.57 mm, C = 3.30–3.94 mm, E = 1.95–2.65 mm, F = 5.97–6.48 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference/return node in shunt configuration | Connected to system ground or lowest potential point; carries full regulator current during conduction |
| Cathode | Input/voltage sense node in shunt configuration | Banded terminal; connected to rail being regulated; establishes 10 V reference relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5347B equivalence | Identical electrical characteristics and testing - enables drop-in replacement in legacy designs qualified to 1N5347B |
| Moisture Sensitivity Level 1 | No dry pack or baking required prior to reflow - reduces manufacturing handling cost and risk |
| Gull-wing lead form | Visible solder joints after reflow - enables automated optical inspection (AOI) and reliable process validation |
| RoHS-compliant matte-tin plating (e3) | Lead-free assembly compatibility with SnPb and SAC305 solders - meets global environmental compliance mandates |
| High surge current capability | 8.6 A non-repetitive peak - protects downstream circuitry from lightning-induced or inductive-switching transients |
Applications
| Power Supply Overvoltage Clamp | DC Reference Voltage Source |
|---|---|
Use Scenario: Clamps 12 V rail during load dump or regulator fault in automotive body control modules. IC Role / Device Role / Timing Role: Shunt regulator placed between rail and ground, conducting only when voltage exceeds 10.5 V (upper tolerance limit). Use Value: Prevents damage to 5 V logic ICs and microcontrollers by limiting rail excursion to ≤10.5 V with 8.6 A surge capacity. |
Use Scenario: Provides stable 10 V reference for ADC input scaling in industrial sensor signal conditioning. IC Role / Device Role / Timing Role: Precision voltage source feeding op-amp buffer; low ZZT (2.0 Ω) minimizes output drift under varying load current. Use Value: Enables 12-bit ADC accuracy by holding reference within ±0.5% over –40 °C to +85 °C ambient range. |
| ESD Protection Network | Feedback Loop Stabilization |
Use Scenario: Integrated into USB port protection circuit alongside TVS diodes for secondary clamping. IC Role / Device Role / Timing Role: Low-leakage (5 µA @ 7.2 V) shunt element that activates only after primary TVS reaches its clamping voltage. Use Value: Adds staged protection without loading normal operation; non-sensitive to ESD per MIL-STD-750 Method 1020. |
Use Scenario: Used in feedback divider of isolated flyback converter to set output voltage with tight tolerance. IC Role / Device Role / Timing Role: Sets reference point for optocoupler feedback; ±5% VZ tolerance directly impacts output regulation accuracy. Use Value: Achieves ±6% output voltage tolerance without trimming, sufficient for non-critical 12 V auxiliary rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5347BRLG | Axial-leaded T-18 package; identical VZ, IZM, and ZZT specs; higher RθJA (~120 °C/W) due to lead-frame thermal path | Requires through-hole mounting; unsuitable for high-density SMT layouts but preferred for prototyping or repair | Select when manual assembly, field repair, or legacy board compatibility is required |
| SMBJ5347B | DO-214AA J-bend package; same electrical specs; slightly higher RθJA (95 °C/W) and different pad layout; no gull-wing visual inspection benefit | Compatible with standard SMT pick-and-place but lacks visible solder joint verification of DO-215AA | Select when existing DO-214AA footprint reuse is prioritized over AOI capability |
Compared with SMBG5347BE3/TR13, 1N5347BRLG offers mechanical robustness and ease of hand-soldering but sacrifices board space efficiency and thermal performance, while SMBJ5347B trades gull-wing inspectability for footprint compatibility - choice depends on assembly method, thermal budget, and quality assurance requirements.
Availability
SMBG5347BE3/TR13 is available at Aetrix Electronics and suitable for power supply protection, precision reference generation, ESD staging, and feedback loop regulation requiring stable component supply across automotive, industrial, and communications equipment programs.
Supply support for SMBG5347BE3/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 to deliver JEDEC-qualified, surface-mount Zener regulation with enhanced surge resilience and RoHS compliance for next-generation power management in space-constrained, thermally demanding systems.
FAQ
What is the Zener voltage tolerance of SMBG5347BE3/TR13?
The "B" suffix in SMBG5347BE3/TR13 indicates a ±5% Zener voltage tolerance. At 25 °C, this means the measured VZ falls between 9.5 V and 10.5 V when tested at the specified 150 mA current (IZT). This tolerance is confirmed in the Electrical Characteristics table on page 3 of the T4-LDS-0246-1 datasheet and applies across the full operating temperature range.
Can SMBG5347BE3/TR13 replace 1N5347B in existing designs?
Yes - SMBG5347BE3/TR13 is explicitly stated as electrically equivalent to JEDEC 1N5347B with identical characteristics and testing. Its DO-215AA gull-wing package provides the same regulation performance as the axial 1N5347B but in surface-mount form, enabling direct PCB redesign without circuit modification. The SMBG5347BE3/TR13 maintains matching VZ, IZM, ZZT, and IR values.
What is the maximum power dissipation for SMBG5347BE3/TR13 at 70 °C ambient?
At 70 °C ambient (TA), SMBG5347BE3/TR13 must be derated per the Power Derating Curve (Figure 1). With RθJA = 90 °C/W, the allowable power drops to approximately 2.8 W. This assumes mounting on FR4 with 1 oz copper and the recommended pad layout; exceeding this requires active cooling or reduced IZ to avoid junction temperatures above 150 °C.
Is SMBG5347BE3/TR13 suitable for ESD protection applications?
SMBG5347BE3/TR13 is rated as non-sensitive to ESD per MIL-STD-750 Method 1020 and exhibits low leakage (5 µA max at 7.2 V), making it suitable as a secondary-stage clamp in ESD protection networks. However, it is not a dedicated ESD suppressor - it should be paired with faster-responding TVS diodes for IEC 61000-4-2 compliance, with SMBG5347BE3/TR13 engaging only after primary clamping.
What does the "e3" and "TR13" suffix mean in SMBG5347BE3/TR13?
The "e3" suffix denotes RoHS-compliant matte-tin plating per JEDEC J-STD-609, while "TR13" specifies tape-and-reel packaging per EIA-481-1-A standard using 12 mm carrier tape. Together, SMBG5347BE3/TR13 identifies a lead-free, machine-ready version of the 10 V Zener diode optimized for automated SMT assembly lines with full environmental compliance documentation.
SMBG5347BE3/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)
SMBG5347BE3/TR13 FAQ
1.How can I place an order for SMBG5347BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5347BE3/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 SMBG5347BE3/TR13 reliable?
The price and inventory of SMBG5347BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5347BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5347BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5347BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5347BE3/TR13?
SMBG5347BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5347BE3/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 SMBG5347BE3/TR13?
For technical support, including SMBG5347BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5347BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5347BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5347BE3/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 SMBG5347BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5347BE3/TR13?
All SMBG5347BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5347BE3/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 SMBG5347BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5347BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5347BE3/TR13 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
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