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Microchip Technology SMBG5381AE3/TR13
- Part No.:
- SMBG5381AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5381AE3/TR13.pdf
- Description:
- DIODE ZENER 130V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,671
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Product details
Overview
SMBG5381AE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 130 V, ±10% tolerance (A suffix), and maximum Zener current IZM of 36.6 mA at TL < 25 °C. It uses DO-215AA gull-wing package, supports visible solder joints, and operates across –65 to +150 °C junction temperature range. It serves as precision voltage reference and overvoltage clamp in industrial power supplies.
For engineers reviewing the SMBG5381AE3/TR13 datasheet, SMBG5381AE3/TR13 pinout, SMBG5381AE3/TR13 application, or SMBG5381AE3/TR13 equivalent, key selection criteria include its 130 V Zener voltage, 5 W power rating at lead temperature <25 °C, ±10% voltage tolerance, DO-215AA gull-wing thermal resistance (RθJL = 25 °C/W), and RoHS-compliant matte-tin plating.
Technical Context
This device functions as a two-terminal voltage regulator diode operating in reverse-biased breakdown mode. Its Zener voltage is specified at 130 V with test current IZT = 10 mA, dynamic impedance ZZT = 190 Ω, and maximum reverse leakage IR = 0.5 µA at VR = 104 V.
Thermal performance is defined by RθJL = 25 °C/W and RθJA = 90 °C/W on FR4 board with recommended footprint. It withstands non-repetitive 8.3 ms half-sine surge current up to 1250 A and exhibits moisture sensitivity level 1 - no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 130 V ±10% - stable regulation point at IZT = 10 mA, usable for 120–140 V rail clamping |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management when lead temperature exceeds 25 °C |
| Dynamic Impedance (ZZT) | 190 Ω at IZT = 10 mA - low AC impedance ensures minimal voltage variation under small-signal ripple |
| Max Reverse Leakage (IR) | 0.5 µA at VR = 104 V - negligible standby current in high-impedance bias networks |
| Surge Current (IZSM) | 1250 A (8.3 ms half-sine) - handles transient overvoltage events without failure |
| Junction Temp Range | –65 to +150 °C - suitable for extended industrial and automotive under-hood environments |
| Thermal Resistance (RθJL) | 25 °C/W - enables predictable junction-to-lead temperature rise under DC load |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; banded end is anode in forward bias but functions as cathode terminal in Zener operation (reverse-biased).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (banded end) | Reference node for reverse bias | Connected to lower-potential side of regulated circuit; defines polarity for Zener conduction |
| Cathode (unbanded end) | Zener output terminal | Connected to higher-potential side; voltage at this node clamps to 130 V when reverse current exceeds knee |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5381B equivalent | Identical electrical specs and test methods to legacy through-hole 1N5381B - simplifies redesign migration |
| Gull-wing leads | Enables visual solder joint inspection and improves mechanical reliability vs. J-bend packages |
| Moisture Sensitivity Level 1 | No dry pack or baking required before reflow - reduces manufacturing handling overhead |
| RoHS-compliant matte-tin plating | e3 suffix confirms lead-free finish compliant with IPC/JEDEC J-STD-020B - meets global environmental mandates |
| High surge current rating | 1250 A peak (8.3 ms) - protects downstream circuitry from lightning-induced or inductive-switching transients |
Applications
| Industrial Power Supply Clamping | DC Bus Overvoltage Protection |
|---|---|
Use Scenario: Clamp 120 V DC bus against switching surges in motor drive inverters. IC Role / Device Role / Timing Role: Two-terminal passive voltage clamp absorbing transient energy above 130 V threshold. Use Value: Prevents MOSFET/IGBT destruction during regenerative braking or line transients without active control circuitry. |
Use Scenario: Stabilize reference voltage in isolated feedback loop of telecom rectifier modules. IC Role / Device Role / Timing Role: Precision Zener reference providing stable 130 V bias for optocoupler input stage. Use Value: Maintains ±10% regulation accuracy across –40 to +105 °C ambient, supporting tight output voltage tolerance. |
| Automotive ECU Transient Suppression | Test Equipment Voltage Reference |
Use Scenario: Suppress load-dump spikes on 24 V vehicle subsystems (e.g., body control modules). IC Role / Device Role / Timing Role: Fast-response shunt element diverting >100 V transients to ground. Use Value: Withstands 1250 A surge per ISO 7637-2 Pulse 5a without degradation - eliminates need for external TVS arrays. |
Use Scenario: Provide calibrated 130 V reference in portable multimeter calibration circuits. IC Role / Device Role / Timing Role: Stable Zener source enabling traceable voltage measurement at mid-range DC levels. Use Value: Low dynamic impedance (190 Ω) minimizes loading error when driving high-impedance ADC inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5381B | Through-hole DO-41 package; identical VZ, IZT, ZZT, and IR specs; non-RoHS (Sn/Pb plating) | Requires PCB through-hole mounting; not suitable for high-density SMT assembly | Select when legacy through-hole design reuse or manual prototyping is prioritized over automated assembly. |
| SMBJ5381B | J-bend DO-214AA package; same VZ and tolerances; RθJA = 100 °C/W (vs. 90 °C/W for SMBG); no e3 RoHS option listed | Lower thermal efficiency on FR4; less visible solder joints; different footprint and reflow profile | Select only if DO-214AA footprint is already standardized and RoHS compliance is not required. |
Compared with SMBG5381AE3/TR13, 1N5381B offers identical electrical behavior but demands through-hole layout changes, while SMBJ5381B sacrifices thermal performance and RoHS compliance for J-bend compatibility - SMBG5381AE3/TR13 uniquely combines SMT gull-wing visibility, Level 1 moisture rating, and certified lead-free plating.
Availability
SMBG5381AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supply clamping, DC bus overvoltage protection, and automotive ECU transient suppression requiring stable component supply, consistent RoHS compliance, and verified surge robustness.
Supply support for SMBG5381AE3/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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The SMBG53xxB series targets surface-mount Zener regulation in space-constrained, thermally demanding applications where gull-wing visibility, JEDEC equivalence, and moisture-insensitive packaging are critical.
FAQ
What is the Zener voltage tolerance for SMBG5381AE3/TR13?
The "A" suffix in SMBG5381AE3/TR13 specifies ±10% Zener voltage tolerance, meaning its actual breakdown voltage falls between 117 V and 143 V at IZT = 10 mA and TL = 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0246-1 Rev. 1, where SMBG5381B (same base number) lists VZ = 130 V with A-suffix tolerance.
Is SMBG5381AE3/TR13 RoHS compliant?
Yes, SMBG5381AE3/TR13 is RoHS compliant, as indicated by the "e3" suffix per Microsemi's nomenclature guide. The device uses annealed matte-tin plating and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity - no dry pack required prior to reflow soldering.
What is the maximum surge current rating for SMBG5381AE3/TR13?
SMBG5381AE3/TR13 has a maximum non-repetitive Zener surge current (IZSM) of 1250 A for an 8.3 ms half-sine waveform, as specified in the Electrical Characteristics table on page 3 of T4-LDS-0246-1 Rev. 1. This rating applies under defined test conditions and supports transient suppression in industrial and automotive systems.
How does SMBG5381AE3/TR13 differ from SMBJ5381B?
SMBG5381AE3/TR13 uses DO-215AA gull-wing leads with RθJA = 90 °C/W and RoHS-compliant e3 plating, whereas SMBJ5381B uses DO-214AA J-bend leads with RθJA = 100 °C/W and no documented e3 variant. Both share 130 V Zener voltage and ±10% tolerance, but SMBG5381AE3/TR13 offers superior thermal performance and environmental compliance.
What is the test current (IZT) used to specify the Zener voltage of SMBG5381AE3/TR13?
The Zener voltage of SMBG5381AE3/TR13 is specified at a test current (IZT) of 10 mA, as shown in the Electrical Characteristics table for SMBG5381B on page 3 of T4-LDS-0246-1 Rev. 1. This current establishes the operating point for measuring VZ = 130 V and associated parameters like ZZT and IR.
SMBG5381AE3/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):
- 130 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 190 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 93.6 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)
SMBG5381AE3/TR13 FAQ
1.How can I place an order for SMBG5381AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5381AE3/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 SMBG5381AE3/TR13 reliable?
The price and inventory of SMBG5381AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5381AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5381AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5381AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5381AE3/TR13?
SMBG5381AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5381AE3/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 SMBG5381AE3/TR13?
For technical support, including SMBG5381AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5381AE3/TR13 requirements.
6.How does Aetrix verify that SMBG5381AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5381AE3/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 SMBG5381AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5381AE3/TR13?
All SMBG5381AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5381AE3/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 SMBG5381AE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5381AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5381AE3/TR13 Tags
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