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Microchip Technology SMBG5368AE3/TR13
- Part No.:
- SMBG5368AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5368AE3/TR13.pdf
- Description:
- DIODE ZENER 47V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,151
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Product details
Overview
SMBG5368AE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 47 V, ±10% tolerance (A suffix), 25 Ω dynamic impedance at 25 mA test current, and DO-215AA gull-wing package. It regulates voltage across wide current and temperature ranges in power supply reference and overvoltage protection circuits.
For engineers reviewing the SMBG5368AE3/TR13 datasheet, SMBG5368AE3/TR13 pinout, SMBG5368AE3/TR13 application, or SMBG5368AE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, surge current rating (210 A), thermal resistance (25 °C/W junction-to-lead), and RoHS-compliant matte-tin plating.
Technical Context
This device operates in reverse breakdown to maintain stable voltage under varying load and temperature conditions. Its 47 V Zener voltage is specified at 25 mA (IZT), with 25 Ω dynamic impedance (ZZT) measured at 10% AC modulation superimposed on IZT.
The SMBG5368AE3/TR13 features a moisture sensitivity level 1 rating per IPC/JEDEC J-STD-020B, eliminating dry-pack requirements. Thermal performance is defined by RθJL = 25 °C/W and RθJA = 90 °C/W on FR4 with recommended footprint, supporting reliable operation from –65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 47 V ±10% - stable regulation point at 25 mA, suitable for 48 V rail monitoring and clamping |
| Power Dissipation (PD) | 5.0 W @ TL < 25 °C - supports high-energy transient suppression when heatsinked |
| Dynamic Impedance (ZZT) | 25 Ω @ IZT = 25 mA - low voltage variation under load changes, critical for precision references |
| Max Surge Current (IZSM) | 210 A (8.3 ms half-sine) - withstands IEC 61000-4-5 Level 4 surges without failure |
| Junction Temp Range | –65 °C to +150 °C - enables use in automotive under-hood and industrial control environments |
| Thermal Resistance | RθJL = 25 °C/W - allows direct PCB copper pour heat transfer to improve long-term reliability |
| Reverse Leakage (IR) | 0.5 µA @ VR = 33.8 V - ensures minimal standby power loss in battery-backed systems |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode and cathode only. Designed for visible solder joint inspection and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail; forms return path for Zener current |
| Cathode | Regulated output node | Banded end; connects to voltage rail being stabilized or clamped; carries full Zener current |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5368B equivalence | Identical electrical specs and test methods - enables drop-in replacement in legacy designs |
| RoHS-compliant matte-tin plating | e3 suffix confirms lead-free finish meeting IPC-J-STD-020B - supports global compliance without requalification |
| Level 1 moisture sensitivity | No dry pack required - reduces handling cost and eliminates bake-out step before reflow |
| Gull-wing lead form | DO-215AA package with 1.96–2.10 mm body width - enables automated optical inspection of solder joints |
| High surge current capability | 210 A non-repetitive peak - protects downstream circuitry from lightning-induced transients |
Applications
| Industrial Power Supply Reference | Automotive ECU Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converters for PLC I/O modules. IC Role / Device Role / Timing Role: Zener diode providing precise 47 V reference for optocoupler-based feedback loop. Use Value: Maintains ±10% regulation over –40 °C to +105 °C ambient, ensuring consistent output accuracy without trimming. | Use Scenario: Clamping 48 V CAN-FD bus transceivers during load-dump events. IC Role / Device Role / Timing Role: Transient voltage suppressor shunting excess energy to ground during ISO 7637-2 Pulse 5a. Use Value: Withstands 210 A surge (8.3 ms) without parametric shift, preserving communication integrity. |
| Telecom Line Card Protection | Renewable Energy Inverter DC Link Monitor |
Use Scenario: Protecting Ethernet PHY interface ICs from induced surges on PoE-powered line cards. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 48 V bias rail upstream of DC-DC regulators. Use Value: Low 25 Ω dynamic impedance minimizes clamping voltage overshoot during fast transients (IEC 61000-4-5). | Use Scenario: Monitoring 400 V DC link in solar microinverters using resistive divider + Zener reference. IC Role / Device Role / Timing Role: Precision voltage reference for ADC input scaling in high-side sensing circuit. Use Value: Stable 47 V Zener voltage with <0.5 µA leakage at 33.8 V ensures minimal divider error and low quiescent current. |
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 ±10%, 5 W rating, but in axial DO-41 package; RθJA = 120 °C/W vs. 90 °C/W | Requires through-hole mounting and larger board area; less suitable for high-density SMT production | Select when legacy through-hole assembly or higher ambient temperature derating margin is needed |
| SMBJ5368B | Same electrical specs, but in DO-214AA (J-bend) package; RθJL = 30 °C/W vs. 25 °C/W | Lower thermal performance limits continuous power in compact layouts; no gull-wing visual inspection advantage | Select when existing DO-214AA footprint reuse is prioritized over thermal efficiency or AOI capability |
Compared with SMBG5368AE3/TR13, 1N5368BRLG offers identical regulation but requires board redesign for axial mounting, while SMBJ5368B retains SMT compatibility at the cost of 20% higher thermal resistance and reduced solder-joint visibility.
Availability
SMBG5368AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, telecom line cards, and renewable energy inverters requiring stable component supply with RoHS compliance and surge resilience.
Supply support for SMBG5368AE3/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 specifically for surface-mount voltage regulation and transient suppression in space-constrained, high-surge environments where JEDEC-compatibility and moisture-insensitive packaging are essential.
FAQ
What is the Zener voltage tolerance for SMBG5368AE3/TR13?
The SMBG5368AE3/TR13 has a Zener voltage tolerance of ±10%, indicated by the "A" suffix in its part number. This means its nominal 47 V Zener voltage falls within 42.3 V to 51.7 V at 25 mA test current and 25 °C junction temperature, as verified in the Electrical Characteristics table on page 3 of the T4-LDS-0246-1 datasheet.
Does SMBG5368AE3/TR13 require dry packing before reflow soldering?
No, SMBG5368AE3/TR13 does not require dry packing. It carries a moisture sensitivity level (MSL) rating of Level 1 per IPC/JEDEC J-STD-020B, meaning it can be stored indefinitely at ≤30 °C/60% RH and placed directly into reflow without baking - a key advantage for high-volume manufacturing.
What is the maximum surge current rating for SMBG5368AE3/TR13?
The SMBG5368AE3/TR13 is rated for a maximum non-repetitive peak surge current (IZSM) of 210 A, defined as an 8.3 ms half-sine waveform. This value is confirmed in the Electrical Characteristics table on page 3 of the T4-LDS-0246-1 datasheet and supports robust protection against IEC 61000-4-5 surges.
How does the DO-215AA package of SMBG5368AE3/TR13 differ from DO-214AA?
The DO-215AA package of SMBG5368AE3/TR13 uses gull-wing leads for visible solder joint inspection and lower profile mounting, whereas DO-214AA (used in SMBJ5368B) employs J-bend leads. DO-215AA also achieves better thermal performance with RθJL = 25 °C/W versus 30 °C/W for DO-214AA, improving power handling in compact layouts.
Is SMBG5368AE3/TR13 compatible with JEDEC 1N5368B?
Yes, SMBG5368AE3/TR13 is fully equivalent to JEDEC registered 1N5368B in electrical characteristics, testing, and performance. The datasheet explicitly states that the SMBG5333B–SMBG5388B series provides identical specifications to 1N5333–1N5388B, enabling direct functional replacement in legacy designs.
SMBG5368AE3/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:
- ±10%
- 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)
SMBG5368AE3/TR13 FAQ
1.How can I place an order for SMBG5368AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5368AE3/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 SMBG5368AE3/TR13 reliable?
The price and inventory of SMBG5368AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5368AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5368AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5368AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5368AE3/TR13?
SMBG5368AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5368AE3/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 SMBG5368AE3/TR13?
For technical support, including SMBG5368AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5368AE3/TR13 requirements.
6.How does Aetrix verify that SMBG5368AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5368AE3/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 SMBG5368AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5368AE3/TR13?
All SMBG5368AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5368AE3/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 SMBG5368AE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5368AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5368AE3/TR13 Tags
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BZT52C5V6T-7
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