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Microchip Technology SMBG5372A/TR13
- Part No.:
- SMBG5372A/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5372A/TR13.pdf
- Description:
- DIODE ZENER 62V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,685
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Product details
Overview
SMBG5372A/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 62 V, ±10% tolerance (A-suffix), 20 mA test current (IZT), 42 Ω dynamic impedance (ZZT), and 76 A maximum surge current (IZSM) - used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5372A/TR13 datasheet, SMBG5372A/TR13 pinout, SMBG5372A/TR13 application, or SMBG5372A/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (RθJA = 90 °C/W), surge current capability, junction temperature range (–65 to +150 °C), and DO-215AA gull-wing package compatibility with high-density PCB layouts.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown at precisely defined VZ when biased above its knee current (IZK). Its Zener voltage is specified at TL = 30 °C with 40 ms settling time after DC current application, and dynamic impedance is measured using 1 kHz AC modulation at 10% of IZT.
The SMBG5372A/TR13 features a moisture sensitivity level (MSL) 1 rating per IPC/JEDEC J-STD-020B, enabling reflow without dry-pack preconditioning. It uses void-free UL94V-0 epoxy encapsulation and matte-tin plating compliant with MIL-STD-750 method 2026 for solderability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 62 V ±10% - stable regulation point at 20 mA test current, usable across –65 to +150 °C junction range |
| Power Dissipation (PD) | 5.0 W @ TL < 25 °C - requires thermal management on FR4 board to sustain full rating |
| Dynamic Impedance (ZZT) | 42 Ω @ 20 mA - low AC impedance ensures minimal output voltage variation under load transients |
| Max Surge Current (IZSM) | 76 A (8.3 ms half-sine) - withstands short-duration overvoltage events without failure |
| Thermal Resistance (RθJA) | 90 °C/W on FR4 (1 oz Cu) - dictates heatsinking requirements for continuous operation near rated power |
| Reverse Leakage (IR) | 0.5 µA @ 47.1 V - negligible standby current in high-impedance bias networks |
| Junction Temperature Range | –65 to +150 °C - supports industrial and automotive under-hood applications |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; terminals are anode (unbanded end) and cathode (banded end); polarity must be observed during PCB layout and assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / reference ground node | Connected to lower-potential side of regulated circuit; defines forward voltage drop (VF = 1.2 V @ 1 A) |
| Cathode | Zener breakdown terminal / regulated output node | Banded end; connected to higher-potential side; maintains 62 V reference when reverse-biased above knee current |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5372B equivalent | Identical electrical specs and testing to legacy through-hole 1N5372B - enables drop-in replacement in upgraded SMT designs |
| Gull-wing lead form | Visible solder joints on DO-215AA footprint - supports automated optical inspection (AOI) and rework accessibility |
| MSL Level 1 rating | No dry-pack or baking required before reflow - reduces manufacturing handling cost and process steps |
| RoHS-compliant finish | Matte-tin plating per MIL-STD-750 - meets environmental compliance without sacrificing solder wetting or reliability |
| High surge robustness | 76 A non-repetitive surge rating - protects downstream circuitry from transient overvoltages in DC power rails |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp Circuit |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converter feedback loop via optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Precision voltage reference providing stable 62 V threshold for error signal generation. Use Value: Maintains ±10% output regulation accuracy across line/load/temperature variations due to low ZZT and tight VZ tolerance. |
Use Scenario: Clamps transient spikes on 48 V telecom power rail caused by inductive switching or lightning surges. IC Role / Device Role / Timing Role: Two-terminal shunt protector absorbing energy above 62 V while limiting peak voltage to safe levels. Use Value: Survives 76 A, 8.3 ms surges without degradation - eliminates need for additional TVS stages in cost-sensitive designs. |
| Industrial Sensor Signal Conditioning | Programmable Voltage Reference |
Use Scenario: Stabilizes excitation voltage for 4–20 mA current-loop pressure sensors operating in harsh factory environments. IC Role / Device Role / Timing Role: Low-drift Zener reference supplying constant bias to sensor bridge and instrumentation amplifier. Use Value: Junction temperature range (–65 to +150 °C) and MSL Level 1 ensure long-term stability in uncontrolled ambient conditions. |
Use Scenario: Sets precise threshold for comparator-based battery charge termination at 62 V in multi-cell Li-ion packs. IC Role / Device Role / Timing Role: Fixed-voltage reference defining upper voltage limit for charging control logic. Use Value: ±10% VZ tolerance and 42 Ω ZZT enable repeatable trip points despite supply ripple and load changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5372B | Through-hole DO-41 package; identical VZ, IZT, ZZT, and IZSM specs; no MSL rating | Requires axial-leaded PCB footprint and wave soldering; unsuitable for high-density SMT assemblies | Select when legacy through-hole design must be maintained or reflow compatibility is not required |
| SMBJ5372A | J-bend DO-214AA package; same VZ, tolerance, and power rating; RθJA = 100 °C/W (vs. 90 °C/W) | Lower thermal performance on FR4; slightly reduced surge margin due to higher junction rise per watt | Choose when DO-214AA footprint is already standardized and minor thermal derating is acceptable |
Compared with SMBG5372A/TR13, the 1N5372B offers identical regulation performance but lacks SMT manufacturability and MSL Level 1 handling, while SMBJ5372A trades thermal efficiency for alternate gull-wing geometry - making SMBG5372A/TR13 optimal for new high-density, thermally constrained designs.
Availability
SMBG5372A/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage clamping circuits, and industrial sensor signal conditioning requiring stable component supply with full RoHS compliance and JEDEC-standardized performance.
Supply support for SMBG5372A/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 SMBG53xxA series was designed specifically for surface-mount voltage regulation in space-constrained, thermally demanding power systems - delivering JEDEC-equivalent performance in a gull-wing DO-215AA package with enhanced manufacturability.
FAQ
What is the Zener voltage tolerance of SMBG5372A/TR13?
The SMBG5372A/TR13 has a Zener voltage tolerance of ±10%, as indicated by the "A" suffix in its part number. This means its actual breakdown voltage falls between 55.8 V and 68.2 V when tested at 20 mA (IZT) and TL = 30 °C. The tolerance is verified per JEDEC test methods and applies across the full operating junction temperature range of –65 to +150 °C.
Can SMBG5372A/TR13 replace 1N5372B in existing designs?
Yes, SMBG5372A/TR13 is electrically equivalent to 1N5372B per Microsemi documentation, sharing identical VZ, IZT, ZZT, IZM, and IZSM specifications. However, it uses a DO-215AA gull-wing package instead of DO-41, so PCB layout and assembly processes must be updated to accommodate surface-mount reflow - no circuit redesign is needed.
What is the maximum continuous power dissipation for SMBG5372A/TR13?
The SMBG5372A/TR13 is rated for 5.0 W continuous power dissipation only when lead temperature (TL) is maintained below 25 °C. On a standard FR4 board with 1 oz copper and recommended footprint, its usable power drops to 1.38 W at 25 °C ambient due to RθJA = 90 °C/W - thermal derating curves in the datasheet must be applied for higher ambient temperatures.
Does SMBG5372A/TR13 require dry packing before reflow soldering?
No, SMBG5372A/TR13 has 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 subjected directly to standard reflow profiles without baking or dry-pack preconditioning - simplifying manufacturing logistics and reducing risk of popcorning.
What is the reverse leakage current specification for SMBG5372A/TR13?
The SMBG5372A/TR13 specifies a maximum reverse leakage current (IR) of 0.5 µA when tested at VR = 47.1 V - which corresponds to 76% of its nominal Zener voltage (62 V). This low leakage ensures minimal parasitic current draw in high-impedance bias networks and precision reference applications where standby power matters.
SMBG5372A/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):
- 62 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 42 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 44.6 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)
SMBG5372A/TR13 FAQ
1.How can I place an order for SMBG5372A/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5372A/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 SMBG5372A/TR13 reliable?
The price and inventory of SMBG5372A/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5372A/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5372A/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5372A/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5372A/TR13?
SMBG5372A/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5372A/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 SMBG5372A/TR13?
For technical support, including SMBG5372A/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5372A/TR13 requirements.
6.How does Aetrix verify that SMBG5372A/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5372A/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 SMBG5372A/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5372A/TR13?
All SMBG5372A/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5372A/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 SMBG5372A/TR13 part is unused and in its original packaging.
Return procedure for SMBG5372A/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5372A/TR13 Tags
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MM5Z5V1ST1G
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