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Microchip Technology SMBG5374CE3/TR13
- Part No.:
- SMBG5374CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5374CE3/TR13.pdf
- Description:
- DIODE ZENER 75V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,205
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Product details
Overview
SMBG5374CE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 75 V, ±2% tolerance (C suffix), RoHS-compliant matte-tin plating, and DO-215AA gull-wing package. It regulates voltage across wide current and temperature ranges in power supply reference and overvoltage protection circuits.
For engineers reviewing the SMBG5374CE3/TR13 datasheet, SMBG5374CE3/TR13 pinout, SMBG5374CE3/TR13 application, or SMBG5374CE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current rating (620 A), thermal resistance (25 °C/W junction-to-lead), and moisture sensitivity level (MSL 1).
Technical Context
This device operates in reverse breakdown with tightly controlled dynamic impedance (45 Ω at IZT = 20 mA) and low knee impedance (63 Ω at 1 mA). Its Zener voltage is specified at TL = 30 °C with measurement delay of 40 ±10 ms after DC current application.
The SMBG5374CE3/TR13 exhibits minimal voltage variation versus current due to low dynamic impedance and high specified maximum regulator current (IZM = 63 mA). It withstands non-repetitive 8.3 ms half-sine surge currents up to 620 A per JEDEC test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 75 V ±2% at IZT = 20 mA - precise reference for 72–78 V regulation window |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management on lead frame for full rating |
| Dynamic Impedance (ZZT) | 45 Ω at IZT = 20 mA - ensures stable output under load transients |
| Max Regulator Current (IZM) | 63 mA - defines maximum continuous DC current before thermal derating |
| Surge Current (IZSM) | 620 A (8.3 ms half-sine) - supports transient overvoltage clamping in power rails |
| Reverse Leakage (IR) | 0.5 µA at VR = 54 V - negligible standby current in high-impedance bias networks |
| Thermal Resistance (RθJL) | 25 °C/W - enables efficient heat transfer to PCB copper via gull-wing leads |
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: MSL 1 - no dry pack required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference/Return Node | Connected to lower-potential side of regulated circuit; forms return path for Zener current |
| Cathode | Zener Output Terminal | Banded end; connected to higher-potential rail; provides stable 75 V reference when reverse-biased |
Key Features
| Feature | Design Value |
|---|---|
| RoHS-compliant matte-tin plating | Meets IPC/JEDEC J-STD-020B solderability standards without lead contamination risk |
| Gull-wing lead geometry (DO-215AA) | Enables visual solder joint inspection and reliable reflow attachment on FR4 boards |
| MSL Level 1 rating | Eliminates pre-bake requirement prior to assembly - reduces manufacturing overhead |
| JEDEC 1N5374B equivalent | Guarantees identical electrical characteristics and test methodology to legacy through-hole counterpart |
| High surge current capability | 620 A peak rating supports robust protection against lightning-induced or switching transients |
Applications
| Power Supply Reference | Overvoltage Protection |
|---|---|
Use Scenario: Stable 75 V reference in isolated DC-DC converter feedback loop. IC Role / Device Role / Timing Role: Zener diode providing precision voltage reference for optocoupler-based error amplifier. Use Value: ±2% tolerance ensures tight output regulation; low dynamic impedance minimizes feedback loop noise injection. |
Use Scenario: Clamping transient spikes on 48 V telecom power bus during hot-swap events. IC Role / Device Role / Timing Role: Standby overvoltage clamp activated only during fault conditions above 75 V threshold. Use Value: 620 A surge rating absorbs energy without failure; MSL 1 simplifies inventory handling in high-mix production. |
| Industrial Sensor Excitation | Test Equipment Calibration |
Use Scenario: Providing stable excitation voltage for high-accuracy RTD or strain gauge bridges. IC Role / Device Role / Timing Role: Precision voltage source maintaining constant current through bridge network. Use Value: Low leakage (0.5 µA) prevents measurement offset; thermal resistance of 25 °C/W maintains stability under ambient drift. |
Use Scenario: Internal reference standard in portable multimeter front-end design. IC Role / Device Role / Timing Role: Primary voltage calibration node traceable to factory-set 75 V Zener point. Use Value: Tight ±2% tolerance and repeatable VZ measurement protocol (40 ±10 ms delay) support NIST-traceable calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5374B | Axial-leaded T-18 package; same VZ, IZT, and tolerance but higher RθJA (125 °C/W) | Requires through-hole assembly and larger board area; unsuitable for high-density SMT layouts | Select when legacy through-hole compatibility or manual prototyping is prioritized over space constraints |
| SMBJ5374B | DO-214AA J-bend package; identical electrical specs but different thermal profile (RθJL = 30 °C/W) | Lower thermal efficiency than SMBG variant; may require larger copper pour for same power dissipation | Choose when existing DO-214AA footprint reuse is critical and 5 W derating margin permits |
Compared with SMBG5374CE3/TR13, 1N5374B offers identical regulation performance but lacks surface-mount compatibility, while SMBJ5374B shares SMT fit but delivers lower thermal performance-making SMBG5374CE3/TR13 optimal for space-constrained, thermally demanding 5 W Zener applications.
Availability
SMBG5374CE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, telecom surge protection circuits, and precision sensor excitation systems requiring stable component supply and RoHS compliance.
Supply support for SMBG5374CE3/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 semiconductor company specializing in high-reliability analog and mixed-signal components for aerospace, defense, and industrial markets.
The SMBG53xx series was designed specifically for surface-mount 5 W Zener regulation in high-density power systems where thermal performance, visual solder inspection, and JEDEC compatibility are critical.
FAQ
What is the Zener voltage tolerance of SMBG5374CE3/TR13?
The SMBG5374CE3/TR13 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number. This means its measured VZ falls between 73.5 V and 76.5 V at IZT = 20 mA and TL = 30 °C. The tighter tolerance supports precision regulation in feedback loops and calibration references where ±5% devices would introduce unacceptable error.
How does the DO-215AA package of SMBG5374CE3/TR13 improve manufacturability?
The DO-215AA gull-wing package of SMBG5374CE3/TR13 enables visible solder joint inspection during automated optical inspection (AOI), reducing post-reflow defect escapes. Its lead geometry also provides mechanical stability during reflow and supports reliable thermal conduction to PCB copper, achieving RθJL = 25 °C/W-superior to J-bend alternatives like SMBJ5374B.
What is the maximum surge current rating for SMBG5374CE3/TR13?
The SMBG5374CE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 620 A, defined per an 8.3 ms half-sine waveform. This rating allows it to safely clamp high-energy transients in telecom and industrial power rails without degradation, provided the surge event remains within JEDEC-defined limits and does not exceed duty cycle constraints.
Is SMBG5374CE3/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5374CE3/TR13 features RoHS-compliant matte-tin plating and is qualified for lead-free reflow with a peak solder temperature of 260 °C for 10 seconds. Its moisture sensitivity level is MSL 1, eliminating the need for dry packing or baking prior to assembly-streamlining high-volume SMT production.
How does the thermal resistance of SMBG5374CE3/TR13 affect PCB layout?
The SMBG5374CE3/TR13 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W, meaning effective heat removal depends on copper area connected to its gull-wing leads. To sustain full 5 W dissipation, the PCB must provide adequate copper pour on both anode and cathode pads per Microsemi's recommended footprint (8.13 mm × 2.16 mm pad dimensions), avoiding thermal bottlenecks in trace routing.
SMBG5374CE3/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:
- ±2%
- 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)
SMBG5374CE3/TR13 FAQ
1.How can I place an order for SMBG5374CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5374CE3/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 SMBG5374CE3/TR13 reliable?
The price and inventory of SMBG5374CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5374CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5374CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5374CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5374CE3/TR13?
SMBG5374CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5374CE3/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 SMBG5374CE3/TR13?
For technical support, including SMBG5374CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5374CE3/TR13 requirements.
6.How does Aetrix verify that SMBG5374CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5374CE3/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 SMBG5374CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5374CE3/TR13?
All SMBG5374CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5374CE3/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 SMBG5374CE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5374CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5374CE3/TR13 Tags
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