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Microchip Technology SMBG5372B/TR13
- Part No.:
- SMBG5372B/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5372B/TR13.pdf
- Description:
- DIODE ZENER 62V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,944
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Product details
Overview
SMBG5372B/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 62 V, ±5% tolerance (B suffix), 20 mA test current (IZT), 42 Ω dynamic impedance (ZZT), and 400 A maximum non-repetitive surge current (IZSM); used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5372B/TR13 datasheet, SMBG5372B/TR13 pinout, SMBG5372B/TR13 application, or SMBG5372B/TR13 equivalent, this page delivers verified electrical parameters, DO-215AA gull-wing package details, thermal derating behavior, and validated alternative Zeners for industrial power management and automotive subsystems.
Technical Context
This device operates in reverse-biased breakdown mode with stable regulation across 1.0 mA to 20 mA test current range and maintains low dynamic impedance (42 Ω) at IZT = 20 mA. Its junction-to-lead thermal resistance is 25 °C/W, enabling reliable 5 W dissipation when lead temperature (TL) is held ≤25 °C.
The SMBG5372B/TR13 exhibits minimal voltage drift over -65 °C to +150 °C operating range and meets MIL-STD-750 ESD immunity (Method 1020). It is rated for 260 °C soldering (10 s) and classified IPC/JEDEC J-STD-020B Level 1 for moisture sensitivity - no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 62 V ±5% at 20 mA - defines precise regulation point for feedback networks requiring tight output voltage control. |
| Power Dissipation (PD) | 5.0 W at TL ≤25 °C - supports high-energy clamping without heatsink when mounted on thermally optimized PCB leads. |
| Dynamic Impedance (ZZT) | 42 Ω at IZT = 20 mA - ensures low output impedance for stable regulation under varying load currents. |
| Max Surge Current (IZSM) | 400 A (8.3 ms half-sine) - provides robust transient overvoltage suppression in DC bus and input stage protection. |
| Reverse Leakage (IR) | 0.5 µA at VR = 47.1 V - guarantees negligible standby current in high-impedance bias or sensing circuits. |
| Junction Temperature Range | -65 °C to +150 °C - enables operation in under-hood automotive, industrial motor drives, and outdoor power systems. |
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 to ensure correct reverse-bias operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / reference ground node | Connected to lower-potential side of regulated circuit; serves as return path for Zener current in shunt regulator topology. |
| Cathode | Breakdown voltage reference terminal | Connected to higher-potential node (e.g., power rail or feedback divider); establishes regulated voltage relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N53xxB equivalent | Direct functional replacement for legacy 1N5372B with identical electrical specs and test methods. |
| Gull-wing lead form | Enables visual solder joint inspection and reduces tombstoning risk on fine-pitch PCB assemblies. |
| Level 1 moisture sensitivity | Eliminates baking requirement before reflow, reducing manufacturing cost and handling complexity. |
| RoHS-compliant matte-tin plating | Meets EU RoHS Directive 2011/65/EU and supports Pb-free assembly without solderability degradation. |
Applications
| Switch-Mode Power Supply Feedback | Automotive Load Dump Protection |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback or forward converter feedback loop using optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 62 V reference for TL431-like comparator function. Use Value: Maintains ±1% output accuracy over line/load/temperature with 42 Ω dynamic impedance minimizing ripple coupling. |
Use Scenario: Clamps 12 V battery rail during ISO 7637-2 Pulse 5a load dump events (up to 120 V, 400 ms). IC Role / Device Role / Timing Role: Transient voltage suppressor absorbing surge energy before it reaches downstream regulators and microcontrollers. Use Value: Withstands 400 A peak surge (8.3 ms) without degradation, protecting CAN transceivers and sensor interfaces. |
| Industrial PLC Input Protection | DC Motor Drive Bus Snubbing |
Use Scenario: Protects 24 V digital input channels from field-wiring induced transients and ESD events. IC Role / Device Role / Timing Role: Overvoltage clamp limiting input voltage to safe levels for Schmitt-trigger input buffers. Use Value: Low 0.5 µA leakage at 47.1 V ensures minimal loading on high-impedance sensor inputs while clamping >62 V spikes. |
Use Scenario: Suppresses inductive kickback from H-bridge MOSFET switching in 48 V BLDC motor controllers. IC Role / Device Role / Timing Role: Energy-dissipating snubber element across DC bus or motor phase terminals. Use Value: 5 W continuous rating and 400 A surge capability safely absorb repetitive switching energy without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5372B | Identical VZ (62 V), IZT (20 mA), ZZT (42 Ω), and PD (5 W), but in axial DO-41 package with leaded mounting. | Requires through-hole PCB layout and wave soldering; unsuitable for high-density SMT production. | Select SMBG5372B/TR13 for automated SMT assembly; choose 1N5372B only for prototyping or legacy board repair. |
| SMBJ5372B | Same VZ and tolerance, but in DO-214AA (J-bend) package with RθJA = 90 °C/W vs. SMBG's 25 °C/W junction-to-lead path. | Lower thermal performance limits continuous power in confined spaces; surge rating unchanged at 400 A. | Prefer SMBG5372B/TR13 where lead-temperature-controlled dissipation is critical; SMBJ5372B suits cost-sensitive, lower-power layouts. |
Compared with 1N5372B and SMBJ5372B, the SMBG5372B/TR13 offers superior thermal management via gull-wing leads and direct JEDEC compatibility, making it optimal for high-reliability SMT power regulation where junction temperature stability is essential.
Availability
SMBG5372B/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, automotive load dump protection, and industrial PLC input protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG5372B/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 5 W Zener regulation in space-constrained, thermally demanding environments where gull-wing thermal conduction and JEDEC compliance are mandatory.
FAQ
What is the Zener voltage tolerance of SMBG5372B/TR13?
The "B" suffix in SMBG5372B/TR13 specifies a ±5% Zener voltage tolerance, meaning its breakdown voltage is guaranteed between 58.9 V and 65.1 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, and applies directly to the SMBG5372B/TR13 device.
Can SMBG5372B/TR13 replace 1N5372B in existing designs?
Yes, SMBG5372B/TR13 is electrically identical to 1N5372B per Microsemi documentation, with matching VZ, IZT, ZZT, and IZSM. However, the SMBG5372B/TR13 uses a DO-215AA gull-wing package versus DO-41 axial leads, so PCB layout and assembly process must be updated accordingly - it is not a drop-in mechanical replacement.
What is the maximum continuous power dissipation for SMBG5372B/TR13?
SMBG5372B/TR13 is rated for 5.0 W continuous power dissipation only when lead temperature (TL) is maintained at or below 25 °C, as specified in the Maximum Ratings table. At ambient conditions on FR4, derating begins above 25 °C per the curve in Figure 1, yielding ~1.38 W at TA = 25 °C with recommended footprint.
Does SMBG5372B/TR13 meet RoHS requirements?
Yes, SMBG5372B/TR13 carries the "TR13" suffix indicating tape-and-reel packaging and RoHS-compliant matte-tin plating per Microsemi's nomenclature guide. The device complies with EU Directive 2011/65/EU and is marked "e3" in internal part coding, confirming lead-free finish and halogen-free molding compound.
What is the reverse leakage current specification for SMBG5372B/TR13?
The SMBG5372B/TR13 has a maximum reverse leakage current (IR) of 0.5 µA measured at VR = 47.1 V (75% of nominal VZ), per the Electrical Characteristics table on page 3. This low leakage ensures minimal parasitic current draw in high-impedance bias networks and precision reference applications.
SMBG5372B/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)
SMBG5372B/TR13 FAQ
1.How can I place an order for SMBG5372B/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5372B/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 SMBG5372B/TR13 reliable?
The price and inventory of SMBG5372B/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5372B/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5372B/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5372B/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5372B/TR13?
SMBG5372B/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5372B/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 SMBG5372B/TR13?
For technical support, including SMBG5372B/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5372B/TR13 requirements.
6.How does Aetrix verify that SMBG5372B/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5372B/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 SMBG5372B/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5372B/TR13?
All SMBG5372B/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5372B/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 SMBG5372B/TR13 part is unused and in its original packaging.
Return procedure for SMBG5372B/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5372B/TR13 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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