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Microchip Technology SMBG5371C/TR13
- Part No.:
- SMBG5371C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5371C/TR13.pdf
- Description:
- DIODE ZENER 60V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,283
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Product details
Overview
SMBG5371C/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 60 V, ±2% tolerance (C suffix), DO-215AA gull-wing package, 20 mA test current, and 40 Ω dynamic impedance at IZT. It regulates voltage in power supply reference and overvoltage protection circuits across industrial temperature range.
For engineers reviewing the SMBG5371C/TR13 datasheet, SMBG5371C/TR13 pinout, SMBG5371C/TR13 application, or SMBG5371C/TR13 equivalent, this page delivers verified electrical parameters, thermal derating behavior, JEDEC-compliant mechanical dimensions, and RoHS-compliant plating details for production-grade selection.
Technical Context
This device operates as a precision voltage reference by maintaining stable reverse breakdown at 60 V under regulated DC current (IZT = 20 mA). Its low dynamic impedance (40 Ω) ensures minimal voltage variation with load current changes, and its 5 W power rating is valid only when lead temperature (TL) is held ≤25 °C.
The SMBG5371C/TR13 uses a void-free thermosetting epoxy case (UL94V-0), matte-tin RoHS-compliant plating per MIL-STD-750 method 2026, and features cathode polarity indicated by a band. It meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity with no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 60 V ±2% at 20 mA - defines precise regulation point for feedback loops and clamp thresholds |
| Power Dissipation (PD) | 5.0 W @ TL ≤25 °C - requires thermal management via PCB copper or heatsinking to sustain full rating |
| Dynamic Impedance (ZZT) | 40 Ω at 20 mA - limits output voltage drift under varying load current in reference applications |
| Max Regulator Current (IZM) | 79 mA - maximum continuous DC current before exceeding 5 W at upper VZ limit (61.2 V) |
| Junction Temp Range | –65 °C to +150 °C - supports operation in automotive under-hood and industrial control environments |
| Thermal Resistance (RθJL) | 25 °C/W - enables accurate junction temperature estimation from measured lead temperature |
| Surge Current (IZSM) | 350 A (8.3 ms half-sine) - withstands transient overvoltage events without failure |
Pinout & Package
DO-215AA gull-wing surface-mount package with two terminals: anode and cathode. Cathode identified by molded band on body. Designed for visible solder joint inspection and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; reverse-biased operation requires cathode at higher potential |
| Cathode | Regulated output node | Banded end; supplies stable 60 V reference or clamps voltage above 60 V to protect downstream components |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N53xxB Equivalent | Identical electrical specs and test methods to legacy through-hole 1N5371B, enabling drop-in replacement in upgraded designs |
| RoHS Compliant Matte-Tin Plating | Meets MIL-STD-750 method 2026 solderability; eliminates lead-based assembly concerns while maintaining wetting performance |
| Level 1 Moisture Sensitivity | No dry pack or baking required prior to reflow - reduces manufacturing handling cost and floor-life constraints |
| Gull-Wing Lead Geometry | Enables automated optical inspection (AOI) of solder joints and improves mechanical reliability under thermal cycling stress |
Applications
| Industrial Power Supply Reference | Automotive Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converter secondary-side regulation. IC Role / Device Role / Timing Role: Zener diode providing precise 60 V reference for optocoupler-based error amplifier input. Use Value: ±2% tolerance and 40 Ω dynamic impedance maintain <±0.5 V output variation across 10–100 mA load range. | Use Scenario: Protecting 48 V battery management system (BMS) analog front-end inputs during load dump transients. IC Role / Device Role / Timing Role: Shunt clamp limiting voltage to 60 V before it reaches ADC or op-amp input stages. Use Value: 350 A surge rating absorbs ISO 7637-2 Pulse 5a energy without degradation, preserving signal chain integrity. |
| Telecom Line Card Protection | Programmable Logic Controller (PLC) Input Conditioning |
Use Scenario: Safeguarding Ethernet PHY interface pins against ESD and lightning-induced surges on PoE-powered line cards. IC Role / Device Role / Timing Role: Primary shunt protection element placed directly at connector entry point. Use Value: Non-sensitive to ESD per MIL-STD-750 method 1020 and rated for repeated 60 V clamping without parameter shift. | Use Scenario: Conditioning 24 V DC sensor input signals in factory automation I/O modules subject to field wiring faults. IC Role / Device Role / Timing Role: Voltage limiter preventing >60 V from reaching isolation barrier or microcontroller GPIO. Use Value: Stable 60 V regulation over –40 °C to +85 °C ambient ensures consistent trip threshold across operating environment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5371B | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and IZM specs; non-RoHS Sn/Pb plating | Requires through-hole assembly; unsuitable for high-density SMT-only boards | Select when legacy repair, manual prototyping, or mixed-technology PCBs demand axial form factor |
| SMBJ5371C | DO-214AA J-bend package; same VZ, tolerance, and power rating; RθJA = 90 °C/W vs. SMBG's 90 °C/W (FR4) | Lower profile but less visible solder joint; slightly different pad layout and thermal path | Select when board space allows J-bend footprint and existing DO-214AA tooling is in place |
Compared with SMBG5371C/TR13, the 1N5371B offers identical regulation performance in axial format but lacks SMT manufacturability and RoHS compliance, while SMBJ5371C provides equivalent electrical behavior in a lower-profile J-bend package with matching thermal resistance on FR4 - both require layout adaptation but preserve core voltage reference function.
Availability
SMBG5371C/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive BMS protection circuits, and telecom line card surge suppression requiring stable component supply and RoHS-compliant sourcing.
Supply support for SMBG5371C/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, RF, and timing solutions for aerospace, defense, and industrial markets.
The SMBG53xx series was designed to deliver JEDEC-standard Zener regulation in surface-mount gull-wing packaging for high-density, high-reliability power management and protection applications where thermal stability and visible solder joints are critical.
FAQ
What is the Zener voltage tolerance for SMBG5371C/TR13?
The "C" suffix in SMBG5371C/TR13 specifies a ±2% Zener voltage tolerance at 20 mA test current, meaning the actual VZ falls between 58.8 V and 61.2 V under specified conditions. This tighter tolerance supports precision reference applications where standard ±5% (B suffix) or ±10% (A suffix) would introduce unacceptable error margins in feedback networks or clamp thresholds.
Can SMBG5371C/TR13 be used in place of 1N5371B?
Yes, SMBG5371C/TR13 is electrically equivalent to 1N5371B per Microsemi documentation, sharing identical VZ, IZT, ZZT, IZM, and surge ratings. However, SMBG5371C/TR13 uses a DO-215AA gull-wing SMT package versus the axial T-18 of 1N5371B, so PCB layout and assembly process must be updated - no direct footprint compatibility exists.
What is the maximum continuous current SMBG5371C/TR13 can handle?
The maximum continuous regulator current (IZM) for SMBG5371C/TR13 is 79 mA, calculated as PD / VZ(max) = 5.0 W / 61.2 V. This assumes lead temperature (TL) remains at or below 25 °C; derating applies above that temperature per the published power derating curve, reducing usable current significantly at elevated TL.
Does SMBG5371C/TR13 require dry packing before reflow soldering?
No, SMBG5371C/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 or baking. This eliminates pre-reflow baking steps, simplifying manufacturing flow and reducing risk of moisture-induced popcorning during reflow.
What is the thermal resistance from junction to ambient for SMBG5371C/TR13?
The junction-to-ambient thermal resistance (RθJA) for SMBG5371C/TR13 is 90 °C/W when mounted on a standard FR4 PCB with 1 oz copper and the recommended pad layout. This value assumes natural convection cooling; forced airflow or added copper area will improve thermal performance and allow higher sustained power dissipation.
SMBG5371C/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)
SMBG5371C/TR13 FAQ
1.How can I place an order for SMBG5371C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5371C/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 SMBG5371C/TR13 reliable?
The price and inventory of SMBG5371C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5371C/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5371C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5371C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5371C/TR13?
SMBG5371C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5371C/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 SMBG5371C/TR13?
For technical support, including SMBG5371C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5371C/TR13 requirements.
6.How does Aetrix verify that SMBG5371C/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5371C/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 SMBG5371C/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5371C/TR13?
All SMBG5371C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5371C/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 SMBG5371C/TR13 part is unused and in its original packaging.
Return procedure for SMBG5371C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5371C/TR13 Tags
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MM5Z5V1ST1G
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