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Microchip Technology SMBG5372AE3/TR13
- Part No.:
- SMBG5372AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5372AE3/TR13.pdf
- Description:
- DIODE ZENER 62V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,628
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Product details
Overview
SMBG5372AE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with a nominal breakdown voltage of 62 V, ±10% tolerance (A suffix), and DO-215AA gull-wing package. It regulates voltage across wide current and temperature ranges, supports surge currents up to 400 A (8.3 ms half-sine), and is used in overvoltage protection circuits for industrial power supplies and DC bus clamping.
For engineers reviewing the SMBG5372AE3/TR13 datasheet, SMBG5372AE3/TR13 pinout, SMBG5372AE3/TR13 application, or SMBG5372AE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current rating, thermal resistance (RθJL = 25 °C/W), RoHS compliance (e3), and tape-and-reel packaging (TR13) for automated assembly.
Technical Context
This device operates in reverse-bias breakdown mode with a specified test current (IZT) of 20 mA and dynamic impedance (ZZT) of 42 Ω at that point. Its knee impedance (ZZK) is 76 Ω at 1.0 mA, indicating stable regulation near the breakdown threshold.
The SMBG5372AE3/TR13 is rated for junction temperatures from –65 °C to +150 °C, has a moisture sensitivity level (MSL) of Level 1 per J-STD-020B, and requires no dry pack. Thermal resistance junction-to-ambient (RθJA) is 90 °C/W on FR4 with recommended footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 62 V ±10% - precise clamping reference for 60–68 V DC rails |
| Power Dissipation (PD) | 5.0 W @ TL < 25 °C - requires thermal management above ambient |
| Test Current (IZT) | 20 mA - standard bias point for VZ measurement and impedance characterization |
| Dynamic Impedance (ZZT) | 42 Ω @ 20 mA - low impedance ensures minimal voltage shift under load variation |
| Max Surge Current (IZSM) | 400 A (8.3 ms half-sine) - withstands transient overvoltages in power systems |
| Reverse Leakage (IR) | 0.5 µA @ 47.1 V - negligible standby current in high-impedance protection nodes |
| Thermal Resistance (RθJL) | 25 °C/W - enables efficient heat transfer to PCB copper when lead-mounted |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; two-terminal unidirectional Zener diode requiring correct polarity orientation during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage side | Connected to ground or lower-potential node in clamp configuration |
| Cathode | Reverse breakdown terminal / high-voltage side | Connected to protected rail; banded end must be at higher potential than anode |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5372B equivalent | Direct electrical and mechanical replacement for legacy axial 1N5372B in space-constrained designs |
| RoHS-compliant matte-tin plating (e3) | Lead-free solder compatibility and MIL-STD-750 method 2026 solderability assurance |
| Gull-wing leads (DO-215AA) | Visible solder joints enable AOI inspection and reduce tombstoning risk in reflow |
| MSL Level 1 rating | No dry pack or baking required before SMT assembly - simplifies manufacturing flow |
| High IZM (5.1 mA) | Supports stable regulation at low quiescent current while maintaining voltage accuracy |
Applications
| DC Power Rail Clamping | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Protecting 48 V DC distribution lines against load-dump transients in factory automation controllers. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed across input terminals to shunt surge energy into ground. Use Value: 400 A surge rating and 62 V VZ ensure reliable clamping without degradation during repeated 120 V/50 ms spikes. |
Use Scenario: Providing stable 62 V reference for precision analog front-end scaling in programmable logic controller (PLC) analog inputs. IC Role / Device Role / Timing Role: Precision voltage reference source for ADC driver biasing and gain-setting networks. Use Value: ±10% VZ tolerance and 42 Ω ZZT minimize reference drift across operating temperature and supply variations. |
| Motor Drive Bus Protection | Telecom Line Interface Protection |
Use Scenario: Safeguarding IGBT gate drivers and feedback sensors on 60–70 V DC bus in servo motor drives. IC Role / Device Role / Timing Role: Secondary crowbar element in multi-stage protection scheme downstream of TVS diodes. Use Value: Low RθJL (25 °C/W) allows direct mounting to copper pour, sustaining repeated 200 A surges without thermal runaway. |
Use Scenario: Overvoltage suppression on -48 V telecom battery backup lines exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standby regulator and fault limiter in line-card power entry stage. Use Value: 0.5 µA leakage at 47.1 V prevents loading of high-impedance -48 V monitoring circuits during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5372B | Axial-leaded T-18 package; identical VZ, IZT, and ZZT; no RoHS (Sn/Pb) plating | Requires through-hole assembly; unsuitable for high-density SMT layouts | Select when legacy board repair or mixed-technology assembly is required |
| SMBJ5372 | J-bend DO-214AA package; same VZ and PD; RθJA = 100 °C/W (vs. 90 °C/W for SMBG) | Higher thermal resistance limits sustained power handling on small pads | Prefer for cost-sensitive designs where footprint compatibility with SMBJ series is prioritized |
Compared with SMBG5372AE3/TR13, the 1N5372B offers identical regulation but lacks SMT compatibility and RoHS compliance, while the SMBJ5372 trades slightly lower thermal performance for broader industry footprint adoption - making SMBG5372AE3/TR13 optimal for new high-reliability SMT designs demanding visible solder joints and MSL Level 1 handling.
Availability
SMBG5372AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, motor drive protection circuits, and telecom line interface designs requiring stable component supply, RoHS compliance, and tape-and-reel packaging for automated placement.
Supply support for SMBG5372AE3/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 specifically for surface-mount voltage regulation in space-constrained, high-surge industrial power systems - emphasizing mechanical robustness, thermal efficiency, and JEDEC-compatibility in gull-wing packaging.
FAQ
What is the Zener voltage tolerance for SMBG5372AE3/TR13?
The 'A' suffix in SMBG5372AE3/TR13 indicates a ±10% Zener voltage tolerance, meaning its breakdown voltage is guaranteed between 55.8 V and 68.2 V at 20 mA test current and 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the T4-LDS-0246-1 datasheet.
Is SMBG5372AE3/TR13 RoHS compliant?
Yes, SMBG5372AE3/TR13 is RoHS compliant, as indicated by the 'e3' suffix in the part number. The device uses annealed matte-tin plating and meets exemption requirements per Directive 2011/65/EU, verified in the Features and Mechanical sections of the official Microsemi datasheet.
What is the maximum surge current rating for SMBG5372AE3/TR13?
SMBG5372AE3/TR13 has a maximum non-repetitive peak surge current (IZSM) of 400 A for an 8.3 ms half-sine waveform, as specified in the Electrical Characteristics table. This rating enables reliable protection against load dump and lightning-induced transients in industrial power systems.
Does SMBG5372AE3/TR13 require dry packing before reflow soldering?
No, SMBG5372AE3/TR13 has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ≤30 °C/60% RH without dry pack or baking - confirmed in the Maximum Ratings and Mechanical sections of the datasheet.
What package type does SMBG5372AE3/TR13 use?
SMBG5372AE3/TR13 uses the DO-215AA gull-wing surface-mount package, characterized by flat, outward-bent leads enabling visual solder joint inspection. Package dimensions and pad layout are detailed on page 5 of the T4-LDS-0246-1 datasheet.
SMBG5372AE3/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)
SMBG5372AE3/TR13 FAQ
1.How can I place an order for SMBG5372AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5372AE3/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 SMBG5372AE3/TR13 reliable?
The price and inventory of SMBG5372AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5372AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5372AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5372AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5372AE3/TR13?
SMBG5372AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5372AE3/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 SMBG5372AE3/TR13?
For technical support, including SMBG5372AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5372AE3/TR13 requirements.
6.How does Aetrix verify that SMBG5372AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5372AE3/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 SMBG5372AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5372AE3/TR13?
All SMBG5372AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5372AE3/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 SMBG5372AE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5372AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5372AE3/TR13 Tags
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