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Microchip Technology SMBG5371BE3/TR13
- Part No.:
- SMBG5371BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5371BE3/TR13.pdf
- Description:
- DIODE ZENER 60V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,599
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Product details
Overview
SMBG5371BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 60 V, ±5% tolerance (B suffix), RoHS-compliant matte-tin plating (e3), and DO-215AA gull-wing package. It delivers stable voltage regulation in power supply feedback loops, overvoltage protection circuits, and reference voltage generation under DC bias up to 20 mA.
For engineers reviewing the SMBG5371BE3/TR13 datasheet, SMBG5371BE3/TR13 pinout, SMBG5371BE3/TR13 application, or SMBG5371BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy at IZT = 20 mA, dynamic impedance of 40 Ω at 20 mA, maximum surge current of 350 A (8.3 ms half-sine), and thermal resistance RθJA = 90 °C/W on FR4.
Technical Context
This device operates as a precision shunt regulator in reverse-biased mode, with cathode band marking polarity. Its breakdown behavior is characterized at TL = 30 °C using 40 ±10 ms DC test pulses, and its dynamic impedance (ZZT) is measured with 1 kHz AC modulation at 10% of IZT.
The SMBG5371BE3/TR13 exhibits minimal voltage drift versus current near knee region (IZK = 1.0 mA, ZZK = 79 Ω), supports surge immunity per MIL-STD-750 method 3015, and maintains moisture sensitivity level 1 - eliminating dry-pack requirements per IPC/JEDEC J-STD-020B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 60 V ±5% at IZT = 20 mA - defines regulated output voltage under standard test conditions |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management when mounted on FR4 with recommended pad layout |
| Dynamic Impedance (ZZT) | 40 Ω at IZT = 20 mA - determines output voltage stability under load current variation |
| Maximum Surge Current (IZSM) | 350 A (8.3 ms half-sine) - enables transient overvoltage clamping without failure |
| Reverse Leakage (IR) | 0.5 µA at VR = 43 V - ensures low standby power loss in high-impedance bias networks |
| Junction Temperature Range | –65 °C to +150 °C - supports operation in automotive under-hood and industrial control environments |
| Thermal Resistance RθJA | 90 °C/W on FR4 (1 oz Cu) - dictates required PCB copper area for safe continuous operation |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; anode and cathode terminals are accessible via two gull-wing leads suitable for automated reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node / ground return | Connected to lower-potential side of regulated circuit; must handle full Zener current path |
| Cathode | Regulated output / voltage reference | Banded end; supplies stable 60 V reference when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5371B equivalent | Identical electrical specs and test methods to through-hole 1N5371B - enables drop-in replacement in legacy designs |
| RoHS-compliant matte-tin plating | e3 suffix confirms annealed matte-tin finish meeting lead-free soldering requirements (260 °C, 10 s) |
| Level 1 moisture sensitivity | No dry-pack or baking required before SMT assembly - reduces manufacturing overhead and handling risk |
| Gull-wing lead form | DO-215AA package enables visual solder joint inspection and high-density PCB layout |
| High IZM rating | 20 mA maximum regulator current at 60 V - supports robust biasing in feedback networks without derating |
Applications
| Switch-Mode Power Supply Feedback | Industrial Overvoltage Clamp |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converter feedback loop using optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Shunt reference providing precise 60 V threshold to trigger protection or adjust duty cycle. Use Value: Maintains ±1% output regulation across line/load/temperature with <40 Ω dynamic impedance at 20 mA. |
Use Scenario: Clamps transient surges on 48 V DC bus in PLC backplane during inductive load switching. IC Role / Device Role / Timing Role: Fast-acting voltage clamp absorbing 350 A surge (8.3 ms) without degradation. Use Value: Prevents downstream IC damage by limiting bus voltage to ≤63 V during ESD or inductive kick events. |
| Programmable Reference Generator | Automotive Battery Monitoring |
Use Scenario: Generates stable 60 V reference for ADC input scaling in high-voltage battery management system. IC Role / Device Role / Timing Role: Precision shunt reference with low temperature coefficient and minimal IR drift. Use Value: Enables 12-bit ADC resolution over –40 °C to +125 °C with <0.5 µA leakage at 43 V reverse bias. |
Use Scenario: Monitors 24 V truck battery health by detecting overvoltage conditions (>30 V) during alternator regulation fault. IC Role / Device Role / Timing Role: Overvoltage detector triggering shutdown logic when battery exceeds safe threshold. Use Value: Survives automotive load-dump transients (ISO 7637-2 Pulse 5a) due to 350 A surge rating and –65 °C to +150 °C operating range. |
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, IZT, ZZT, and IZM specs; non-RoHS (Sn/Pb) plating | Requires axial-leaded PCB footprint and wave soldering; not suitable for high-density SMT lines | Select when retrofitting legacy through-hole designs or where manual repairability is prioritized over automation. |
| SMBG5371B | Same DO-215AA package and electrical specs, but non-RoHS Sn/Pb plating (no e3 suffix); same TR13 tape/reel packaging | Compatible with leaded solder processes; not compliant with EU RoHS Directive 2011/65/EU | Select only for applications exempt from RoHS or where Sn/Pb assembly is mandated by reliability qualification. |
Compared with SMBG5371BE3/TR13, the 1N5371B offers identical regulation performance but demands different assembly infrastructure, while SMBG5371B provides mechanical and electrical equivalence without RoHS compliance - making SMBG5371BE3/TR13 the default choice for new RoHS-aligned SMT designs requiring 60 V Zener regulation.
Availability
SMBG5371BE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial overvoltage protection circuits, and automotive battery monitoring systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG5371BE3/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 in space-constrained, high-surge environments - delivering JEDEC-equivalent performance in gull-wing packaging with Level 1 moisture robustness.
FAQ
What is the Zener voltage tolerance and test current for SMBG5371BE3/TR13?
The SMBG5371BE3/TR13 has a Zener voltage tolerance of ±5% (denoted by the "B" suffix) and is specified at a test current IZT of 20 mA. At this current, the nominal breakdown voltage is 60 V, with actual values ranging from 57 V to 63 V. This tolerance and test condition are confirmed in the Electrical Characteristics table on page 3 of the T4-LDS-0246-1 datasheet.
Does SMBG5371BE3/TR13 require dry packing before SMT assembly?
No, SMBG5371BE3/TR13 does not require dry packing. It carries IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it can be stored and assembled without baking or humidity-controlled packaging. This is explicitly stated in the Features section and Maximum Ratings table of the official Microsemi datasheet.
What is the maximum surge current rating for SMBG5371BE3/TR13 and under what waveform?
The SMBG5371BE3/TR13 is rated for a maximum non-repetitive peak surge current (IZSM) of 350 A, defined for an 8.3 ms half-sine waveform. This value appears in the Electrical Characteristics table on page 3 and supports robust transient suppression in power rail protection applications.
How does the dynamic impedance of SMBG5371BE3/TR13 affect voltage regulation stability?
The SMBG5371BE3/TR13 has a dynamic impedance (ZZT) of 40 Ω at IZT = 20 mA. This low impedance ensures minimal output voltage variation (<0.8 V) for ±20 mA load current changes, directly improving regulation accuracy in feedback and reference circuits where tight voltage control is critical.
Is SMBG5371BE3/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5371BE3/TR13 features RoHS-compliant matte-tin plating (e3 suffix) and is qualified for lead-free reflow with a maximum solder temperature of 260 °C for 10 seconds, as specified in the Maximum Ratings table. Its gull-wing geometry also supports uniform heating and reliable joint formation.
SMBG5371BE3/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:
- ±5%
- 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)
SMBG5371BE3/TR13 FAQ
1.How can I place an order for SMBG5371BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5371BE3/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 SMBG5371BE3/TR13 reliable?
The price and inventory of SMBG5371BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5371BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5371BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5371BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5371BE3/TR13?
SMBG5371BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5371BE3/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 SMBG5371BE3/TR13?
For technical support, including SMBG5371BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5371BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5371BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5371BE3/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 SMBG5371BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5371BE3/TR13?
All SMBG5371BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5371BE3/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 SMBG5371BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5371BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5371BE3/TR13 Tags
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