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Microchip Technology SMBG5371CE3/TR13
- Part No.:
- SMBG5371CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5371CE3/TR13.pdf
- Description:
- DIODE ZENER 60V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,534
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Product details
Overview
SMBG5371CE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 60 V, ±2% tolerance (C suffix), and maximum Zener current of 79 mA at 25 °C ambient on FR4 board. It features gull-wing DO-215AA packaging, 25 °C/W junction-to-lead thermal resistance, and is rated for surge currents up to 350 A (8.3 ms half-sine). It serves as a precision voltage reference and overvoltage clamp in power supply feedback loops.
For engineers reviewing the SMBG5371CE3/TR13 datasheet, SMBG5371CE3/TR13 pinout, SMBG5371CE3/TR13 application, or SMBG5371CE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, dynamic impedance at test current, surge current capability, thermal resistance, and RoHS-compliant matte-tin plating compatibility with lead-free reflow.
Technical Context
This device operates in reverse-biased breakdown mode, delivering stable regulation across wide current (20 mA IZT) and temperature (–65 to +150 °C) ranges. Its low dynamic impedance (40 Ω at 20 mA) ensures minimal voltage variation under load transients.
The DO-215AA gull-wing package enables visible solder joints and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity-no dry pack required. Thermal performance is defined by RθJL = 25 °C/W and RθJA = 90 °C/W on FR4 with recommended footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 60 V ±2% at 20 mA - precise regulation point for feedback networks |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires heatsinking or board copper for sustained operation |
| Dynamic Impedance (ZZT) | 40 Ω max at 20 mA - low AC impedance improves transient response in regulation |
| Max Reverse Current (IR) | 0.5 µA at 43 V - negligible leakage below knee voltage |
| Surge Current (IZSM) | 350 A (8.3 ms half-sine) - withstands high-energy transients without failure |
| Junction Temperature Range | –65 to +150 °C - suitable for automotive under-hood and industrial environments |
| Thermal Resistance (RθJL) | 25 °C/W - enables direct thermal path to PCB copper or heatsink tab |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking. Cathode terminal is banded end; device operates with cathode positive relative to anode.
| 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 terminal; supplies stable 60 V reference when reverse-biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N53xxB Equivalent | Identical electrical specs to through-hole 1N5371B - enables drop-in replacement in legacy designs |
| RoHS Compliant Matte-Tin Plating | e3 suffix indicates annealed matte-tin finish - compatible with Pb-free reflow profiles up to 260 °C |
| Level 1 Moisture Sensitivity | No dry pack required - simplifies handling and eliminates bake-out before assembly |
| Gull-Wing Lead Geometry | Visible solder fillets per IPC-A-610 - supports automated optical inspection (AOI) and reliability validation |
Applications
| Switch-Mode Power Supply Feedback | Industrial Overvoltage Clamp |
|---|---|
Use Scenario: Used in TL431-based secondary-side feedback circuits to regulate 12 V output in 100 W AC/DC adapters. IC Role / Device Role / Timing Role: Zener reference providing stable 60 V threshold to trigger crowbar protection or adjust error amplifier setpoint. Use Value: ±2% tolerance ensures tight output regulation; 40 Ω ZZT minimizes feedback loop phase shift. | Use Scenario: Mounted across DC bus in motor drive inverters to clamp 300 V rail surges during IGBT switching transitions. IC Role / Device Role / Timing Role: Transient voltage suppressor absorbing 350 A surge energy without degradation. Use Value: 350 A IZSM rating handles repetitive 8.3 ms line surges; DO-215AA package allows high-current trace routing. |
| Automotive ECU Reference | Test Equipment Voltage Standard |
Use Scenario: Provides 60 V reference for ADC biasing in engine control unit sensor signal conditioning. IC Role / Device Role / Timing Role: Precision voltage source for ratiometric scaling of analog inputs under –40 to +125 °C ambient. Use Value: –65 to +150 °C operating range covers full automotive temperature envelope; <0.5 µA leakage prevents signal offset drift. | Use Scenario: Calibrated reference in benchtop multimeters requiring traceable 60 V DC standard. IC Role / Device Role / Timing Role: Stable Zener element used in internal voltage divider networks for range selection. Use Value: ±2% tolerance and low tempco enable calibration-grade accuracy; RoHS-compliant plating ensures metrology lab compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5371B | Through-hole DO-41 package; identical VZ, IZM, ZZT, and tolerance; no RoHS e3 marking | Requires axial-leaded PCB layout; not suitable for high-density SMT assemblies | Select when legacy through-hole manufacturing or manual prototyping is used |
| SMBJ5371B | Same DO-214AA J-bend package; identical electrical specs but higher RθJA (100 °C/W vs. 90 °C/W); non-RoHS default | Lower thermal efficiency on FR4; less suitable for continuous 5 W dissipation without enhanced copper | Select when DO-214AA footprint is already standardized and RoHS is not required |
Compared with SMBG5371CE3/TR13, 1N5371B offers identical regulation performance in through-hole form but lacks SMT manufacturability and RoHS compliance, while SMBJ5371B shares SMT compatibility but trades off thermal performance and environmental compliance for footprint reuse.
Availability
SMBG5371CE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial overvoltage clamps, and automotive ECU references requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG5371CE3/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 for high-density, high-surge SMT voltage regulation-targeting power supply feedback, transient suppression, and precision reference applications where thermal robustness and JEDEC compatibility are critical.
FAQ
What is the Zener voltage tolerance for SMBG5371CE3/TR13?
The "C" suffix in SMBG5371CE3/TR13 denotes ±2% Zener voltage tolerance at 20 mA test current. This is confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0246-1 Rev. 1, where SMBG5371B/C entries show VZ = 60 V with C tolerance. The tighter tolerance enables higher-accuracy regulation than ±5% (B) or ±10% (A) variants.
Does SMBG5371CE3/TR13 support lead-free reflow soldering?
Yes, SMBG5371CE3/TR13 supports lead-free reflow soldering. The "e3" suffix explicitly indicates RoHS-compliant annealed matte-tin plating, qualified per MIL-STD-750 Method 2026 and rated for 260 °C peak solder temperature for 10 seconds, as stated in the Mechanical and Packaging section on page 2 of the datasheet.
What is the maximum Zener current (IZM) for SMBG5371CE3/TR13 at 25 °C ambient?
The maximum Zener current for SMBG5371CE3/TR13 is 79 mA at 25 °C ambient on FR4 board with recommended footprint. This value is listed in the Electrical Characteristics table (page 3) under "MAXIMUM REGULATOR CURRENT (IZM)" for SMBG5371B/C. It assumes 5 W power derating per Note 3 and accounts for ±2% tolerance at upper VZ limit.
How does the DO-215AA package of SMBG5371CE3/TR13 differ from DO-214AA?
The DO-215AA package of SMBG5371CE3/TR13 uses gull-wing leads, enabling visible solder fillets and AOI compatibility, whereas DO-214AA (used in SMBJ53xxB) has J-bend leads. Per the datasheet's "Also available in" note, both packages share identical electrical characteristics but differ mechanically-DO-215AA provides better thermal conduction via shorter lead paths and improved solder joint inspection.
Is SMBG5371CE3/TR13 moisture-sensitive, and does it require baking before assembly?
No, SMBG5371CE3/TR13 is not moisture-sensitive in a way that requires baking. It carries IPC/JEDEC J-STD-020B Level 1 moisture classification, meaning it has unlimited floor life and no dry pack or bake-out is required prior to reflow, as confirmed in the Applications/Benefits section (page 1) and Mechanical/Packaging section (page 2) of the datasheet.
SMBG5371CE3/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):
- 60 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 43 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)
SMBG5371CE3/TR13 FAQ
1.How can I place an order for SMBG5371CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5371CE3/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 SMBG5371CE3/TR13 reliable?
The price and inventory of SMBG5371CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5371CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5371CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5371CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5371CE3/TR13?
SMBG5371CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5371CE3/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 SMBG5371CE3/TR13?
For technical support, including SMBG5371CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5371CE3/TR13 requirements.
6.How does Aetrix verify that SMBG5371CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5371CE3/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 SMBG5371CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5371CE3/TR13?
All SMBG5371CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5371CE3/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 SMBG5371CE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5371CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5371CE3/TR13 Tags
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