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Microchip Technology SMBG5368BE3/TR13
- Part No.:
- SMBG5368BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5368BE3/TR13.pdf
- Description:
- DIODE ZENER 47V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,447
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Product details
Overview
SMBG5368BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 47 V, ±5% tolerance (B suffix), 25 Ω dynamic impedance at 25 mA test current, and 2.7 A maximum Zener surge current for 8.3 ms half-sine waveform. It operates in power regulation and overvoltage protection circuits in industrial DC power supplies.
For engineers reviewing the SMBG5368BE3/TR13 datasheet, SMBG5368BE3/TR13 pinout, SMBG5368BE3/TR13 application, or SMBG5368BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (25 °C/W junction-to-lead), surge current capability (2.7 A), and RoHS-compliant matte-tin plating for lead-free assembly.
Technical Context
This device functions as a precision voltage reference and shunt regulator in constant-voltage applications, operating in reverse breakdown with stable VZ across 25 mA to 1.38 W (at TA = 25 °C) or 5.0 W (at TL < 25 °C). Its DO-215AA gull-wing package enables visible solder joints and supports IPC/JEDEC Level 1 moisture sensitivity without dry pack.
The SMBG5368BE3/TR13 exhibits minimal voltage variation versus current due to low dynamic impedance (25 Ω at IZT = 25 mA) and maintains regulation over -65 °C to +150 °C junction temperature range. Reverse leakage is limited to ≤0.5 µA at 33.8 V, supporting low-power standby modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 47 V ±5% at 25 mA - defines regulated output voltage under nominal bias conditions |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - maximum continuous power handling with adequate lead heat sinking |
| Dynamic Impedance (ZZT) | 25 Ω at IZT = 25 mA - low AC impedance ensures stable regulation against load transients |
| Surge Current (IZSM) | 2.7 A peak (8.3 ms half-sine) - withstands short-duration overvoltage events without failure |
| Junction Temperature Range | -65 °C to +150 °C - supports operation in harsh industrial and automotive under-hood environments |
| Thermal Resistance (RθJL) | 25 °C/W - enables efficient heat transfer from junction to PCB copper via leads |
| Moisture Sensitivity Level | Level 1 per J-STD-020B - no dry pack or baking required before reflow |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; designed for visible solder joint inspection and high-density PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side reference node | Connected to circuit ground or lower potential; carries forward current up to 1.0 A (VF = 1.2 V) |
| Cathode | Zener breakdown terminal / regulated voltage node | Banded end; held at precise 47 V relative to anode during reverse bias; sinks regulation current |
Key Features
| Feature | Design Value |
|---|---|
| RoHS-compliant matte-tin plating | Enables lead-free reflow soldering per JEDEC J-STD-020B without tin whisker risk |
| Gull-wing lead form (DO-215AA) | Provides visual solder joint inspection and mechanical stability on FR4 PCBs |
| Level 1 moisture sensitivity | Eliminates dry pack requirement and floor life constraints in manufacturing |
| High surge current rating (2.7 A) | Protects downstream circuitry from transient overvoltages without external clamping |
| Low dynamic impedance (25 Ω) | Maintains tight voltage regulation across varying load currents in feedback loops |
Applications
| Industrial DC Power Supply Regulation | Automotive ECU Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizes 48 V intermediate bus in programmable logic controller (PLC) power modules. IC Role / Device Role / Timing Role: Shunt regulator maintaining fixed 47 V reference for secondary LDOs and analog sensing circuits. Use Value: Delivers ±5% voltage accuracy and 25 Ω dynamic impedance to minimize output ripple under 10–500 mA load steps. |
Use Scenario: Clamps 12 V battery line surges (load dump, ISO 7637-2 Pulse 5a) in engine control unit input protection. IC Role / Device Role / Timing Role: Fast-acting voltage clamp diverting transient energy to ground before reaching microcontroller I/O pins. Use Value: Withstands 2.7 A surge (8.3 ms) without degradation, meeting automotive transient immunity requirements. |
| Telecom Line Card Voltage Reference | Renewable Energy Inverter Gate Drive Bias |
Use Scenario: Provides stable 47 V bias for op-amp comparators monitoring -48 V telecom supply health. IC Role / Device Role / Timing Role: Precision Zener reference enabling accurate threshold detection across -40 °C to +85 °C ambient. Use Value: Maintains regulation with ≤0.5 µA leakage at 33.8 V, minimizing quiescent current in always-on monitoring circuits. |
Use Scenario: Supplies isolated gate drive bias for SiC MOSFET half-bridge in solar inverter auxiliary power supply. IC Role / Device Role / Timing Role: Shunt regulator generating clean 47 V rail for high-side driver ICs requiring stable supply. Use Value: Low 25 °C/W junction-to-lead thermal resistance enables reliable operation at 70 °C board temperature with minimal heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5368BRLG | Same 47 V ±5%, 5 W rating, but in axial DO-204AL (1N53xx) package with leaded termination | Requires through-hole mounting and manual soldering; not suitable for automated SMT lines | Select when legacy board design mandates axial components or hand-soldered repair scenarios |
| SMBJ5368B | Identical electrical specs but in DO-214AA (J-bend) package; RθJA = 90 °C/W vs. 25 °C/W (RθJL) for SMBG5368BE3/TR13 | Lower thermal performance in high-power density layouts; requires larger copper area for equivalent cooling | Choose only if existing footprint uses DO-214AA; otherwise prefer SMBG5368BE3/TR13 for superior thermal management |
Compared with 1N5368BRLG and SMBJ5368B, SMBG5368BE3/TR13 offers gull-wing visibility for AOI inspection, Level 1 moisture rating without dry pack, and 3.6× lower junction-to-lead thermal resistance-critical for compact, high-reliability SMT power regulation designs.
Availability
SMBG5368BE3/TR13 is available at Aetrix Electronics and suitable for industrial DC power supply regulation, automotive ECU overvoltage clamp, and telecom line card voltage reference requiring stable component supply and full RoHS compliance.
Supply support for SMBG5368BE3/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 engineered for robust surface-mount voltage regulation in space-constrained, thermally demanding applications where visible solder joints and moisture-insensitive packaging are mandatory.
FAQ
What is the Zener voltage tolerance of SMBG5368BE3/TR13?
The 'B' suffix in SMBG5368BE3/TR13 specifies a ±5% Zener voltage tolerance. At 25 °C and 25 mA test current, the measured VZ falls between 44.65 V and 49.35 V. This tolerance is verified per JEDEC JESD201A stress testing and applies across the full -65 °C to +150 °C junction temperature range.
Does SMBG5368BE3/TR13 require dry packing before reflow soldering?
No, SMBG5368BE3/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it may be stored indefinitely at ≤30 °C/60% RH without dry pack. The DO-215AA epoxy body is void-free and thermosetting, eliminating moisture absorption concerns during standard lead-free reflow profiles.
What is the maximum continuous power dissipation for SMBG5368BE3/TR13?
SMBG5368BE3/TR13 delivers 5.0 W continuous power dissipation when lead temperature (TL) is maintained below 25 °C. At ambient temperature (TA) = 25 °C on FR4 with recommended footprint, derated power is 1.38 W. Thermal resistance junction-to-lead is 25 °C/W, enabling higher power with proper copper pour design.
How does the gull-wing package of SMBG5368BE3/TR13 improve manufacturability?
The DO-215AA gull-wing leads of SMBG5368BE3/TR13 allow automated optical inspection (AOI) of solder fillets and reduce tombstoning risk during reflow. Unlike J-bend packages, gull-wing geometry provides self-centering alignment and mechanical stability on fine-pitch PCBs used in high-density industrial modules.
What surge current waveform is rated for SMBG5368BE3/TR13?
SMBG5368BE3/TR13 is rated for 2.7 A non-repetitive peak surge current using an 8.3 ms half-sine waveform, per Note 4 in the datasheet. This rating applies to single-event transients like load dump or inductive switching spikes, and is validated under standardized test conditions with specified thermal preconditioning.
SMBG5368BE3/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):
- 47 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 25 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 33.8 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)
SMBG5368BE3/TR13 FAQ
1.How can I place an order for SMBG5368BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5368BE3/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 SMBG5368BE3/TR13 reliable?
The price and inventory of SMBG5368BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5368BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5368BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5368BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5368BE3/TR13?
SMBG5368BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5368BE3/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 SMBG5368BE3/TR13?
For technical support, including SMBG5368BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5368BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5368BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5368BE3/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 SMBG5368BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5368BE3/TR13?
All SMBG5368BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5368BE3/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 SMBG5368BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5368BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5368BE3/TR13 Tags
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