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Microchip Technology SMBG5374AE3/TR13
- Part No.:
- SMBG5374AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5374AE3/TR13.pdf
- Description:
- DIODE ZENER 75V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,371
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Product details
Overview
SMBG5374AE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 75 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 620 A (8.3 ms half-sine), and is used in overvoltage protection and precision reference circuits in industrial power supplies.
For engineers reviewing the SMBG5374AE3/TR13 datasheet, SMBG5374AE3/TR13 pinout, SMBG5374AE3/TR13 application, or SMBG5374AE3/TR13 equivalent, this page delivers verified electrical parameters, thermal derating behavior, RoHS-compliant packaging details, and direct alternative part comparisons for reliable circuit design and BOM validation.
Technical Context
This device operates in reverse-biased breakdown mode with a specified test current (IZT) of 20 mA and dynamic impedance (ZZT) of 45 Ω at that point. Its Zener voltage is measured 40 ±10 ms after DC current application at TL = 25 °C, per JEDEC-standard test methodology.
Thermal performance is defined by RθJL = 25 °C/W (junction-to-lead) and RθJA = 90 °C/W (junction-to-ambient on FR4 with recommended footprint). Power dissipation is rated at 5.0 W only when lead temperature (TL) remains below 25 °C; derating applies above that threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 75 V ±10% - stable regulation point at IZT = 20 mA, suitable for 72–78 V system clamping |
| Power Dissipation (PD) | 5.0 W @ TL < 25 °C - requires thermal management on PCB to sustain full rating |
| Max Regulator Current (IZM) | 620 mA - maximum continuous DC current before exceeding 5 W at VZ = 75 V × 1.1 |
| Surge Current (IZSM) | 620 A (8.3 ms half-sine) - withstands transient overvoltage events without failure |
| Dynamic Impedance (ZZT) | 45 Ω @ 20 mA - low AC impedance ensures minimal voltage variation under load changes |
| Reverse Leakage (IR) | 0.5 µA @ VR = 54 V - negligible standby current in high-impedance bias networks |
| Junction Temp Range | –65 to +150 °C - supports operation in extended-temperature industrial environments |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; anode and cathode terminals are accessible via solderable gull-wing leads. Moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1 - no dry pack required prior to assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference/ground node in Zener regulator configuration | Connected to lower-potential side; must be routed with adequate copper area for thermal conduction |
| Cathode | Regulated output node (banded end) | Connected to protected rail; polarity reversal causes forward conduction and loss of regulation |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5374B equivalence | Fully compatible with legacy 1N5374B designs - identical electrical specs and test methods |
| RoHS-compliant matte-tin plating | e3 suffix confirms lead-free finish meeting IPC-J-STD-020B Level 1 moisture handling |
| Gull-wing lead form | Enables visual solder joint inspection and improves mechanical reliability vs. J-bend packages |
| High surge current capability | 620 A non-repetitive surge rating enables use in lightning/surge-prone industrial interfaces |
| Low dynamic impedance | 45 Ω at 20 mA ensures <±0.5 V regulation shift across typical load-current variations |
Applications
| Industrial Power Supply Protection | DC Bus Overvoltage Clamp |
|---|---|
Use Scenario: 48 V DC input stage in programmable logic controller (PLC) power module exposed to load-dump transients. IC Role / Device Role / Timing Role: Zener diode acting as shunt overvoltage clamp, triggered when bus exceeds 75 V. Use Value: Absorbs 5 W continuously and 620 A surges without degradation, preventing downstream MOSFET failure. |
Use Scenario: 72 V battery-fed motor drive where regenerative braking causes momentary bus voltage spikes. IC Role / Device Role / Timing Role: Passive voltage limiter placed across DC link capacitor bank. Use Value: Clamps transients within 40 ms response window while maintaining <0.5 µA leakage at 54 V hold-off. |
| Precision Reference Circuit | ESD-Safe Signal Conditioning |
Use Scenario: Low-drift 75 V reference for analog-to-digital converter (ADC) front-end scaling in test equipment. IC Role / Device Role / Timing Role: Stable Zener reference source with minimal voltage drift over –40 to +85 °C. Use Value: Delivers 75 V ±10% with 45 Ω dynamic impedance, enabling <0.1% full-scale error in 16-bit ADC systems. |
Use Scenario: Input protection network for RS-485 transceiver pins subjected to IEC 61000-4-2 ESD events. IC Role / Device Role / Timing Role: Primary shunt element in multi-stage TVS+Zener protection scheme. Use Value: Withstands >15 kV contact discharge per MIL-STD-750 Method 1020, with no ESD sensitivity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5374B | Same Zener voltage (75 V), ±10%, but axial T-18 package; no RoHS compliance (Sn/Pb plating) | Requires through-hole mounting and dry pack for moisture control; unsuitable for high-density SMT lines | Select when legacy through-hole assembly or cost-sensitive non-RoHS production is required |
| SMBJ5374B | Identical electrical specs, but DO-214AA J-bend package; RθJA = 100 °C/W (vs. 90 °C/W for SMBG) | Lower thermal efficiency on FR4; requires larger pad area to match SMBG5374AE3/TR13's 5 W capability | Select when existing J-bend footprint is fixed and thermal margin allows 10% power derating |
Compared with SMBG5374AE3/TR13, 1N5374B offers identical regulation but lacks SMT compatibility and RoHS compliance, while SMBJ5374B matches function but demands greater PCB thermal design effort to sustain full 5 W operation.
Availability
SMBG5374AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supply protection, DC bus overvoltage clamping, and precision reference circuits requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for SMBG5374AE3/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 SMBG53xx series was designed specifically for surface-mount Zener regulation in space-constrained, high-surge industrial power systems - emphasizing JEDEC compatibility, visible solder joints, and Level 1 moisture robustness.
FAQ
What is the Zener voltage tolerance for SMBG5374AE3/TR13?
The "A" suffix in SMBG5374AE3/TR13 denotes ±10% Zener voltage tolerance, meaning its regulated voltage falls between 67.5 V and 82.5 V at IZT = 20 mA and TL = 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the T4-LDS-0246-1 datasheet, and applies across the full operating temperature range.
Is SMBG5374AE3/TR13 RoHS compliant?
Yes, SMBG5374AE3/TR13 is RoHS compliant, as indicated by the "e3" suffix in its part number. The device uses annealed matte-tin plating per MIL-STD-750 Method 2026 and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity - no dry pack required prior to reflow.
What is the maximum continuous Zener current for SMBG5374AE3/TR13?
The maximum continuous Zener current (IZM) for SMBG5374AE3/TR13 is 620 mA, calculated per Note 3 on page 3 of the datasheet using IZM = P/VZM, where P = 5.0 W and VZM = 75 V × 1.1 = 82.5 V. This rating assumes TL ≤ 25 °C and proper thermal management on the PCB.
Can SMBG5374AE3/TR13 replace 1N5374B in existing designs?
SMBG5374AE3/TR13 is electrically equivalent to 1N5374B per the datasheet's opening statement, but it is not a drop-in replacement due to package differences: SMBG5374AE3/TR13 uses DO-215AA gull-wing SMT, while 1N5374B uses axial T-18. PCB layout and assembly process must be updated accordingly.
What is the surge current rating for SMBG5374AE3/TR13?
SMBG5374AE3/TR13 has a non-repetitive peak surge current (IZSM) rating of 620 A for an 8.3 ms half-sine waveform, as specified in the Electrical Characteristics table on page 3. This value is validated per JEDEC test conditions and reflects capability under standardized transient stress.
SMBG5374AE3/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:
- ±10%
- 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)
SMBG5374AE3/TR13 FAQ
1.How can I place an order for SMBG5374AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5374AE3/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 SMBG5374AE3/TR13 reliable?
The price and inventory of SMBG5374AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5374AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5374AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5374AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5374AE3/TR13?
SMBG5374AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5374AE3/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 SMBG5374AE3/TR13?
For technical support, including SMBG5374AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5374AE3/TR13 requirements.
6.How does Aetrix verify that SMBG5374AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5374AE3/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 SMBG5374AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5374AE3/TR13?
All SMBG5374AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5374AE3/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 SMBG5374AE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5374AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5374AE3/TR13 Tags
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