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Microchip Technology SMBG5372BE3/TR13
- Part No.:
- SMBG5372BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5372BE3/TR13.pdf
- Description:
- DIODE ZENER 62V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,813
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Product details
Overview
SMBG5372BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 62 V, ±5% tolerance (B suffix), RoHS-compliant matte-tin plating (e3), and DO-215AA gull-wing package. It regulates voltage across wide current and temperature ranges (-65 °C to +150 °C), supports 20 mA test current (IZT), and delivers 400 A peak surge current (IZSM) for transient protection in power supply rails.
For engineers reviewing the SMBG5372BE3/TR13 datasheet, SMBG5372BE3/TR13 pinout, SMBG5372BE3/TR13 application, or SMBG5372BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (RθJL = 25 °C/W), maximum regulator current (IZM = 400 mA), and compliance with MIL-STD-750 ESD testing.
Technical Context
This device operates as a precision voltage reference and overvoltage clamp in DC power conditioning circuits. Its 62 V Zener voltage is specified at 20 mA (IZT), with dynamic impedance ZZT = 42 Ω and knee impedance ZZK = 76 Ω at 1 mA - indicating stable regulation near breakdown onset.
The DO-215AA gull-wing package enables visible solder joints and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity. Thermal performance is defined by RθJL = 25 °C/W (junction-to-lead) and RθJA = 90 °C/W (junction-to-ambient on FR4), supporting reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 62 V ±5% at IZT = 20 mA - defines precise clamping threshold for overvoltage protection. |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - sets maximum continuous DC power handling with adequate heatsinking. |
| Dynamic Impedance (ZZT) | 42 Ω at IZT = 20 mA - determines voltage variation under load current changes. |
| Max Regulator Current (IZM) | 400 mA - derived from PD/VZM; limits safe DC operating current at upper voltage tolerance. |
| Surge Current (IZSM) | 400 A (8.3 ms half-sine) - enables robust transient suppression without failure. |
| Junction Temperature Range | -65 °C to +150 °C - supports industrial and automotive under-hood environments. |
| Reverse Leakage (IR) | 0.5 µA at VR = 47.1 V - ensures minimal standby power loss in high-impedance bias networks. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode and cathode only. Cathode is banded end; device operates with banded end positive relative to anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Positive terminal during reverse-bias conduction | Connected to regulated rail or voltage reference node; sinks current during Zener breakdown. |
| Anode | Negative terminal during reverse-bias conduction | Connected to ground or lower-potential return path; completes Zener current loop. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5372B equivalent | Identical electrical specs and test methods - enables drop-in replacement in legacy designs. |
| RoHS-compliant matte-tin plating (e3) | Meets lead-free assembly requirements without compromising solderability per MIL-STD-750. |
| Level 1 moisture sensitivity | No dry pack required - reduces handling cost and simplifies SMT line logistics. |
| Gull-wing leads (DO-215AA) | Enables visual solder joint inspection - improves process yield and field reliability verification. |
| High surge current rating | 400 A non-repetitive peak - protects downstream circuitry against lightning-induced or inductive-switching transients. |
Applications
| Industrial Power Supply Regulation | Automotive ECU Voltage Clamp |
|---|---|
|
Use Scenario: Stabilizing 60–65 V auxiliary rail in programmable logic controller (PLC) backplane power modules. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage regulator and overvoltage limiter. Use Value: Maintains output within ±1.5 V over 10–400 mA load range while surviving 100 V/100 ns transients per ISO 7637-2. |
Use Scenario: Clamping CAN transceiver supply rail against load-dump spikes in engine control units. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between 62 V backup battery rail and local regulator input. Use Value: Limits rail excursion to ≤65 V during 12 V system load dump events, preventing damage to 5 V LDOs and microcontrollers. |
| Telecom DC-DC Converter Reference | Test Equipment Overvoltage Protection |
|
Use Scenario: Providing stable 62 V reference for isolated flyback feedback loop in telecom rectifier modules. IC Role / Device Role / Timing Role: Precision Zener reference diode in optocoupler-coupled voltage sensing network. Use Value: Delivers <10 mV drift over -40 °C to +85 °C, enabling ±0.5% output regulation accuracy. |
Use Scenario: Protecting analog front-end inputs of portable multimeters during accidental 100 V misconnection. IC Role / Device Role / Timing Role: Primary overvoltage clamp on high-impedance measurement channel. Use Value: Absorbs >95% of 100 V/100 µs surge energy before reaching sensitive ADC input stage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5372B | Same Zener voltage (62 V), ±5%, but Sn/Pb plating and DO-204AL (DO-41) axial package. | Requires through-hole mounting and lead forming; not suitable for automated SMT lines. | Select when legacy through-hole assembly or higher thermal mass is preferred. |
| SMBJ5372B | Same electrical specs, but DO-214AA (J-bend) package with RθJA = 100 °C/W - 11% higher thermal resistance than SMBG5372BE3/TR13. | Lower power derating above 70 °C ambient; less suitable for high-density enclosed enclosures. | Select when board space constraints favor J-bend footprint over gull-wing. |
Compared with 1N5372B and SMBJ5372B, SMBG5372BE3/TR13 offers superior manufacturability via gull-wing leads, tighter thermal management (RθJL = 25 °C/W), and RoHS compliance - making it optimal for new SMT designs requiring high-volume reliability and regulatory alignment.
Availability
SMBG5372BE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, telecom DC-DC converters, and test equipment requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG5372BE3/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 specifically for surface-mount voltage regulation and transient suppression in harsh-environment power systems where precision, surge resilience, and long-term stability are critical.
FAQ
What is the Zener voltage tolerance of SMBG5372BE3/TR13?
The 'B' suffix in SMBG5372BE3/TR13 indicates a ±5% Zener voltage tolerance. At 20 mA test current (IZT), this yields a guaranteed VZ range of 59.0 V to 65.1 V. This tolerance is verified per JEDEC test methods and applies across the full operating temperature range of -65 °C to +150 °C.
Does SMBG5372BE3/TR13 require dry packing before reflow soldering?
No, SMBG5372BE3/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. The DO-215AA package uses void-free epoxy meeting UL94V-0 and does not absorb significant moisture during standard factory handling.
What is the maximum continuous power dissipation for SMBG5372BE3/TR13?
SMBG5372BE3/TR13 is rated for 5.0 W continuous power dissipation at lead temperature (TL) below 25 °C. When mounted on FR4 with 1 oz copper and recommended pad layout, its power rating derates linearly to 1.38 W at 25 °C ambient - governed by RθJA = 90 °C/W.
How is the cathode identified on SMBG5372BE3/TR13?
The cathode of SMBG5372BE3/TR13 is marked by a distinct color band on the DO-215AA package body. During normal Zener operation, the banded end must be held at a more positive potential than the anode - i.e., reverse bias - to enable controlled breakdown and voltage regulation.
What surge waveform does the 400 A IZSM rating for SMBG5372BE3/TR13 correspond to?
The 400 A peak surge current (IZSM) for SMBG5372BE3/TR13 is specified for a single non-repetitive 8.3 ms half-sine wave - the industry-standard test condition per IEC 61000-4-5 for surge immunity validation. This rating assumes proper PCB layout with low-inductance traces and adequate copper area.
SMBG5372BE3/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:
- ±5%
- 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)
SMBG5372BE3/TR13 FAQ
1.How can I place an order for SMBG5372BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5372BE3/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 SMBG5372BE3/TR13 reliable?
The price and inventory of SMBG5372BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5372BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5372BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5372BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5372BE3/TR13?
SMBG5372BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5372BE3/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 SMBG5372BE3/TR13?
For technical support, including SMBG5372BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5372BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5372BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5372BE3/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 SMBG5372BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5372BE3/TR13?
All SMBG5372BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5372BE3/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 SMBG5372BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5372BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5372BE3/TR13 Tags
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