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Microchip Technology SMBG5374BE3/TR13
- Part No.:
- SMBG5374BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5374BE3/TR13.pdf
- Description:
- DIODE ZENER 75V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,902
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Product details
Overview
SMBG5374BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 75 V, ±5% tolerance (B suffix), RoHS-compliant matte-tin plating (e3), and DO-215AA gull-wing package. It delivers stable voltage regulation across wide current (20 mA test current) and temperature (–65 °C to +150 °C) ranges, and is used in power supply overvoltage clamping and reference circuits.
For engineers reviewing the SMBG5374BE3/TR13 datasheet, SMBG5374BE3/TR13 pinout, SMBG5374BE3/TR13 application, or SMBG5374BE3/TR13 equivalent, key selection criteria include its 75 V Zener voltage, 5 W power rating at lead temperature <25 °C, 45 Ω dynamic impedance at 20 mA, 0.5 µA reverse leakage at 54 V, and DO-215AA thermal resistance of 25 °C/W junction-to-lead.
Technical Context
This device operates as a precision voltage reference and transient clamp in DC power rails. Its Zener breakdown mechanism provides low dynamic impedance (45 Ω at IZT = 20 mA) and minimal voltage drift versus current-critical for stable feedback loops in switching regulators and analog sensing circuits.
Designed for surface-mount high-density PCBs, the DO-215AA gull-wing package enables visible solder joints and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity-no dry pack required. Thermal performance relies on lead-mounted heat sinking, with RθJL = 25 °C/W enabling 5 W dissipation only when TL < 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 75 V ±5% at 20 mA - defines precise clamping threshold for 72–78 V protection windows. |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires direct lead thermal path to copper; derates to 1.38 W at TA = 25 °C on FR4. |
| Dynamic Impedance (ZZT) | 45 Ω at IZT = 20 mA - ensures minimal output voltage variation under load transients. |
| Reverse Leakage (IR) | 0.5 µA max at VR = 54 V - guarantees low standby power loss in high-impedance bias networks. |
| Surge Current (IZSM) | 620 A peak (8.3 ms half-sine) - withstands lightning-induced or ESD-related energy pulses without failure. |
| Junction Temperature Range | –65 °C to +150 °C - supports operation in automotive under-hood and industrial motor control environments. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; banded end must be biased positive relative to anode for Zener operation. Weight: 0.1 g. Moisture sensitivity level: IPC/JEDEC J-STD-020B Level 1 - no dry pack required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference/Return Node | Connected to system ground or lower-potential rail; forms current return path during Zener conduction. |
| Cathode (banded end) | Zener Output Terminal | Connected to protected node; maintains regulated 75 V relative to anode when reverse-biased above breakdown. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5374B Equivalent | Identical electrical specs and test methods - enables drop-in replacement for legacy through-hole designs using adapter footprints. |
| RoHS Compliant Matte-Tin Plating (e3) | Lead-free solder compatibility per JEDEC J-STD-020B - eliminates Pb contamination risk in modern assembly lines. |
| Gull-Wing Leads (DO-215AA) | Visible solder fillets and mechanical stability - simplifies AOI inspection and improves reliability in vibration-prone applications. |
| Level 1 Moisture Sensitivity | No baking or dry pack required before reflow - reduces manufacturing overhead and avoids moisture-induced popcorning. |
Applications
| DC Power Supply Clamping | Industrial Sensor Reference |
|---|---|
Use Scenario: Protecting 72–80 V DC bus in telecom rectifiers against overvoltage events. IC Role / Device Role / Timing Role: Zener diode acting as shunt regulator and transient voltage suppressor. Use Value: Clamps surge energy within safe limits using 620 A peak surge capability and 5 W steady-state dissipation. |
Use Scenario: Providing stable 75 V reference for high-voltage current-sense amplifier biasing in motor drives. IC Role / Device Role / Timing Role: Precision voltage reference element in analog front-end circuitry. Use Value: Maintains ±5% accuracy across –40 °C to +125 °C ambient with 45 Ω dynamic impedance limiting error under load shifts. |
| Automotive Battery Monitoring | Test Equipment Protection |
Use Scenario: Overvoltage detection in 48 V mild-hybrid vehicle battery management systems. IC Role / Device Role / Timing Role: Zener-based comparator input clamp preventing ADC input damage. Use Value: Withstands automotive load-dump transients up to 620 A (8.3 ms) while maintaining 75 V regulation window. |
Use Scenario: Input protection for programmable power supplies handling variable output voltages up to 80 V. IC Role / Device Role / Timing Role: Front-end overvoltage limiter safeguarding downstream control ICs. Use Value: Low 0.5 µA leakage at 54 V minimizes quiescent current draw in always-on monitoring circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5374BRLG | Axial-leaded T-18 package; identical 75 V ±5%, 5 W rating but higher RθJA (125 °C/W vs. 90 °C/W). | Requires through-hole mounting and larger board area; unsuitable for high-density SMT layouts. | Select when legacy through-hole assembly or manual prototyping is preferred over automated SMT placement. |
| SMBJ5374B | DO-214AA J-bend package; same electrical specs but different footprint and RθJL = 30 °C/W (vs. 25 °C/W). | Lower thermal efficiency requires tighter layout constraints for 5 W operation; less visible solder joint for AOI. | Choose only if existing DO-214AA footprint reuse is mandatory; otherwise SMBG5374BE3/TR13 offers superior thermal and inspection advantages. |
Compared with 1N5374BRLG and SMBJ5374B, SMBG5374BE3/TR13 provides optimal thermal performance (RθJL = 25 °C/W) and manufacturability (gull-wing visibility, Level 1 MSL) for high-reliability SMT power regulation-without sacrificing Zener accuracy or surge robustness.
Availability
SMBG5374BE3/TR13 is available at Aetrix Electronics and suitable for DC power supply clamping, industrial sensor reference, and automotive battery monitoring requiring stable component supply, full RoHS compliance, and verified surge immunity.
Supply support for SMBG5374BE3/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 radiation-hardened components for aerospace, defense, and industrial markets.
The SMBG53xxB series was designed specifically for surface-mount voltage regulation and transient suppression in space-constrained, thermally demanding power systems-emphasizing JEDEC compatibility, visible solder joints, and Level 1 moisture robustness.
FAQ
What is the Zener voltage tolerance of SMBG5374BE3/TR13?
The SMBG5374BE3/TR13 has a Zener voltage tolerance of ±5%, denoted by the "B" suffix in its part number. This means its breakdown voltage is guaranteed between 71.25 V and 78.75 V when tested at 20 mA and 25 °C, per Microsemi's T4-LDS-0246-1 specification sheet.
Can SMBG5374BE3/TR13 replace 1N5374B in existing designs?
Yes, SMBG5374BE3/TR13 is electrically equivalent to 1N5374B per Microsemi documentation, sharing identical Zener voltage, power rating, and test conditions. However, it uses a DO-215AA surface-mount package instead of axial T-18, so PCB layout and assembly process must be updated accordingly.
What is the maximum surge current rating for SMBG5374BE3/TR13?
The SMBG5374BE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 620 A, defined as a single 8.3 ms half-sine waveform. This value is confirmed in the Electrical Characteristics table on page 3 of Microsemi's T4-LDS-0246-1 datasheet.
Does SMBG5374BE3/TR13 require dry packing before reflow soldering?
No, SMBG5374BE3/TR13 has a moisture sensitivity level (MSL) of IPC/JEDEC J-STD-020B Level 1, meaning it may be stored indefinitely at ambient conditions without dry packing or baking prior to reflow soldering-reducing manufacturing complexity and cost.
What is the thermal resistance junction-to-lead for SMBG5374BE3/TR13?
The thermal resistance junction-to-lead (RθJL) for SMBG5374BE3/TR13 is 25 °C/W, as specified in the Maximum Ratings table on page 1 of the datasheet. This value assumes proper lead-mounted heat sinking and is critical for achieving its full 5 W power rating.
SMBG5374BE3/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):
- 75 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 45 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 54 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)
SMBG5374BE3/TR13 FAQ
1.How can I place an order for SMBG5374BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5374BE3/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 SMBG5374BE3/TR13 reliable?
The price and inventory of SMBG5374BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5374BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5374BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5374BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5374BE3/TR13?
SMBG5374BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5374BE3/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 SMBG5374BE3/TR13?
For technical support, including SMBG5374BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5374BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5374BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5374BE3/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 SMBG5374BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5374BE3/TR13?
All SMBG5374BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5374BE3/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 SMBG5374BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5374BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5374BE3/TR13 Tags
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