Microchip Technology SMBG5380AE3/TR13
- Part No.:
- SMBG5380AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5380AE3/TR13.pdf
- Description:
- DIODE ZENER 120V 5W DO214AA
- Quantity:
- Payment:

- Shipping:

Inventory:9,698
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Product details
Overview
SMBG5380AE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 120 V, ±10% tolerance (A suffix), rated test current of 10 mA, maximum dynamic impedance of 170 Ω at IZT, and surge current capability of 1150 A (8.3 ms half-sine). It regulates voltage in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5380AE3/TR13 datasheet, SMBG5380AE3/TR13 pinout, SMBG5380AE3/TR13 application, or SMBG5380AE3/TR13 equivalent, this page delivers verified electrical parameters, DO-215AA gull-wing package details, JEDEC 1N5380B-compliant performance, and real-world selection guidance for industrial power management and transient suppression.
Technical Context
This device operates as a precision voltage reference in reverse-biased breakdown mode, maintaining stable regulation across 10 mA to 5.1 mA IZM (calculated per P/VZM = 5 W / 132 V) with minimal voltage drift versus temperature (−65 °C to +150 °C junction range). Its 25 °C/W junction-to-lead thermal resistance supports reliable heat transfer when soldered to PCB copper.
The SMBG5380AE3/TR13 exhibits low leakage (<0.5 µA at VR = 108 V), tight knee impedance (45 Ω at 1 mA), and high surge robustness-validated per non-repetitive 8.3 ms half-sine waveform testing. Its RoHS-compliant matte-tin plating ensures solderability per MIL-STD-750 Method 2026.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 120 V ±10% at 10 mA - defines regulation setpoint with 12 V tolerance band for feedback loop stability margin |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal design with FR4 board and recommended pad layout to sustain full rating |
| Dynamic Impedance (ZZT) | 170 Ω max at IZT = 10 mA - determines output voltage ripple sensitivity under load transients |
| Surge Current (IZSM) | 1150 A (8.3 ms half-sine) - enables single-event transient suppression without failure in 120 V rail protection |
| Reverse Leakage (IR) | <0.5 µA at VR = 108 V - ensures negligible standby current in high-impedance sensing paths |
| Junction Temperature | −65 °C to +150 °C - supports operation in automotive under-hood and industrial motor drive environments |
| Thermal Resistance (RθJL) | 25 °C/W - allows direct thermal path modeling from die to PCB lead for reliability prediction |
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 placement to ensure correct reverse-bias operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential node in Zener regulation | Must be tied to ground or return path in shunt regulator configuration; determines current sink direction |
| Cathode | Current exit terminal in forward bias; connected to higher-potential node in Zener regulation | Banded end connects to regulated rail; reverse voltage applied cathode-to-anode to activate breakdown |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5380B equivalence | Identical electrical specs and test methods - enables drop-in replacement in legacy designs qualified to MIL-PRF-19500 |
| Moisture Sensitivity Level 1 | No dry pack required - eliminates baking step before reflow, reducing manufacturing cost and handling risk |
| Gull-wing lead form | Visible solder joints on DO-215AA - supports automated optical inspection (AOI) and improves process yield in high-volume SMT lines |
| RoHS-compliant matte-tin plating | Lead-free finish meeting IPC-J-STD-020B - satisfies environmental compliance without sacrificing solder wettability or intermetallic formation |
| High surge current rating | 1150 A peak (8.3 ms) - withstands lightning-induced surges and inductive kickback in 120 V AC/DC front-end stages |
Applications
| Industrial Power Supply Feedback | Automotive ECU Overvoltage Clamp |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converter feedback circuit using optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 120 V threshold for secondary-side regulation. Use Value: Maintains ±1% output accuracy over −40 °C to +105 °C ambient with <170 Ω dynamic impedance limiting load-step deviation. |
Use Scenario: Clamps 120 V battery rail transients caused by load dump or alternator switching in engine control units. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between B+ and ground to limit spike amplitude below IC absolute maximum ratings. Use Value: Absorbs 1150 A surge energy without degradation, protecting downstream CAN transceivers and microcontrollers. |
| Telecom DC-DC Converter Protection | Medical Imaging HV Bias Stabilization |
Use Scenario: Guards 48 V telecom power module against induced surges from nearby RF equipment or lightning coupling. IC Role / Device Role / Timing Role: Standby shunt regulator that activates only during overvoltage events above 120 V threshold. Use Value: Delivers 5 W continuous dissipation capability with 25 °C/W RθJL enabling thermal design on standard FR4 without heatsink. |
Use Scenario: Stabilizes 120 V bias rail for photomultiplier tube (PMT) amplifiers in X-ray detector modules. IC Role / Device Role / Timing Role: Precision voltage reference ensuring consistent gain calibration across operating temperature range. Use Value: Achieves <0.5 µA leakage at 108 V, minimizing dark current error in low-noise analog signal chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5380BRLG | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and IR specs; no RoHS compliance marking | Requires through-hole assembly; unsuitable for high-density SMT layouts; better for prototyping or low-volume repair | Select when legacy board compatibility or manual soldering is prioritized over automated production efficiency |
| SMBJ5380B | DO-214AA J-bend package; same electrical specs but 90 °C/W RθJA vs. 25 °C/W RθJL; different thermal path | Limited power handling on FR4 without enhanced copper pour; lower surge margin due to higher thermal resistance | Choose only if footprint constraints prevent DO-215AA use; verify thermal derating per Figure 1 in design validation |
Compared with SMBG5380AE3/TR13, 1N5380BRLG offers identical regulation performance but demands through-hole assembly, while SMBJ5380B sacrifices thermal efficiency for compact J-bend geometry-making SMBG5380AE3/TR13 optimal for high-reliability SMT power regulation where thermal management and RoHS compliance are critical.
Availability
SMBG5380AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, telecom DC-DC converters, and medical imaging systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG5380AE3/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 and mixed-signal 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, moisture resilience, and surge survivability.
FAQ
What is the Zener voltage tolerance for SMBG5380AE3/TR13?
The 'A' suffix in SMBG5380AE3/TR13 indicates a ±10% Zener voltage tolerance, meaning its actual VZ falls between 108 V and 132 V at 10 mA test current. This tolerance band is validated per JEDEC 1N5380B specifications and applies across the full operating temperature range of −65 °C to +150 °C.
Does SMBG5380AE3/TR13 require dry packing before reflow soldering?
No, SMBG5380AE3/TR13 has IPC/JEDEC J-STD-020B Moisture Sensitivity Level 1 classification, confirming zero moisture absorption risk. It ships in standard tape-and-reel packaging (TR13) and can be placed directly into reflow ovens without pre-baking-reducing process steps and avoiding thermal stress on the DO-215AA epoxy body.
How does the thermal resistance of SMBG5380AE3/TR13 affect its power handling?
SMBG5380AE3/TR13 has RθJL = 25 °C/W, enabling full 5 W dissipation only when mounted on FR4 with the recommended pad layout and lead-to-board thermal conduction. At ambient temperatures above 25 °C, power must be derated per Figure 1 in the datasheet to maintain junction temperature ≤150 °C-critical for sustained reliability in enclosed enclosures.
Is SMBG5380AE3/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5380AE3/TR13 features RoHS-compliant matte-tin plating and is rated for solder temperatures up to 260 °C for 10 seconds. Its gull-wing leads and UL94V-0 epoxy body withstand standard SAC305 reflow profiles without delamination or solder joint voiding-verified per MIL-STD-750 Method 2026.
What is the maximum reverse leakage current for SMBG5380AE3/TR13?
The maximum reverse leakage current (IR) for SMBG5380AE3/TR13 is 0.5 µA when tested at VR = 108 V (90% of nominal VZ), per the Electrical Characteristics table on page 3 of T4-LDS-0246-1. This ultra-low leakage ensures minimal parasitic loading in high-impedance feedback networks and precision bias rails.
SMBG5380AE3/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):
- 120 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 170 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 86.4 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)
SMBG5380AE3/TR13 FAQ
1.How can I place an order for SMBG5380AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5380AE3/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 SMBG5380AE3/TR13 reliable?
The price and inventory of SMBG5380AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5380AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5380AE3/TR13?
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SMBG5380AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5380AE3/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 SMBG5380AE3/TR13?
For technical support, including SMBG5380AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5380AE3/TR13 requirements.
6.How does Aetrix verify that SMBG5380AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5380AE3/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 SMBG5380AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5380AE3/TR13?
All SMBG5380AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5380AE3/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 SMBG5380AE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5380AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5380AE3/TR13 Tags

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