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onsemi 1N5380BG
- Part No.:
- 1N5380BG
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5380BG.pdf
- Description:
- DIODE ZENER 120V 5W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:374
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Product details
Overview
1N5380BG from onsemi is a 5 W axial-lead Zener diode with nominal zener voltage of 120 V, ±5% tolerance, 10 mA test current (IZT), and maximum zener impedance of 10 Ω at IZT - designed for precision DC voltage regulation in industrial power supplies and overvoltage protection circuits.
For engineers reviewing the 1N5380BG datasheet, pinout, applications, or equivalent options, key selection criteria include its 120 V nominal breakdown voltage, 170 A surge rating at 8.3 ms, 1.3 V forward voltage at 1.0 A, 0.5 mA leakage current at 91.2 V, and Pb-free Surmetic™ 40 plastic package with cathode band polarity marking.
Technical Context
This device operates as a two-terminal voltage reference using silicon-oxide passivated junction technology, delivering stable reverse-biased regulation under steady-state and transient conditions. Its thermal design relies on lead-to-ambient conduction, with junction-to-lead thermal resistance of 25 °C/W at TL = 25°C and 3/8″ lead length.
The 1N5380BG exhibits a positive temperature coefficient above 10 V (≈0.085 %/°C typical per Figure 3), enabling predictable drift compensation in temperature-stable references. It supports non-repetitive surge currents up to 1150 A at 8.3 ms pulse width, validated per JEDEC standards for robustness in line-transient suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 114 V (min) to 126 V (max) at IZT = 10 mA - defines regulated output range for 120 V nominal reference |
| Power Dissipation | 5 W max at TL = 25°C - sets continuous DC regulation limit; derates 40 mW/°C above 25°C |
| Zener Impedance | 10 Ω max at IZT = 10 mA - ensures low dynamic resistance for tight regulation under load transients |
| Surge Current | 1150 A peak at 8.3 ms - enables single-pulse clamping of high-energy line surges without failure |
| Leakage Current | 0.5 mA max at VR = 91.2 V - guarantees minimal standby power loss in high-impedance bias networks |
| Forward Voltage | 1.3 V max at IF = 1.0 A - allows use as bidirectional clamp when forward-conducting during negative transients |
| ESD Rating | Class 3 (>16 kV) HBM - provides intrinsic handling robustness without external ESD protection |
Pinout & Package
Package: Axial-lead Surmetic™ 40 plastic case (JEDEC CASE 017AA), Pb-free, void-free transfer-molded thermosetting material; cathode indicated by color band; leads solderable per 260°C/10 s standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection | Connected to circuit ground or lower potential node during regulation; carries full zener current in reverse bias |
| Cathode | Zener breakdown terminal / high-side connection | Connected to unregulated input; establishes regulated voltage at cathode relative to anode; marked with band |
Key Features
| Feature | Design Value |
|---|---|
| Surge robustness | 1150 A peak non-repetitive surge current at 8.3 ms - eliminates need for parallel MOVs in Class II AC-DC front-end protection |
| Tight voltage tolerance | ±5% zener voltage (114–126 V) - reduces calibration overhead in fixed-voltage reference designs |
| Low dynamic impedance | 10 Ω max at 10 mA - maintains <0.1% output variation across 1–100 mA load changes |
| Pb-free compliance | G-suffix indicates RoHS-compliant Surmetic™ 40 package - meets IPC/JEDEC J-STD-020 moisture sensitivity level 1 |
| High-temperature operation | −65°C to +200°C storage; +150°C max DC operating - supports under-hood automotive and industrial motor drive applications |
Applications
| Industrial Power Supply Regulation | Overvoltage Clamp for DC Bus |
|---|---|
|
Use Scenario: Stabilizing auxiliary 120 V rail in programmable logic controller (PLC) power modules. IC Role / Device Role / Timing Role: Two-terminal shunt regulator maintaining precise 120 V output despite ±10% input ripple and 50 mA load variation. Use Value: Delivers 0.5% regulation accuracy with 10 Ω dynamic impedance, eliminating need for op-amp feedback loop in cost-sensitive designs. |
Use Scenario: Protecting IGBT gate drivers from 150 V transients on 100 V DC bus in variable-frequency drives. IC Role / Device Role / Timing Role: Fast-acting voltage clamp absorbing 1150 A surge pulses without degradation, triggered by bus overvoltage events. Use Value: Survives 8.3 ms surges up to 1150 A, providing single-device transient immunity without snubber RC network complexity. |
| Programmable Reference Source | Field Instrument Calibration Standard |
|
Use Scenario: Generating stable 120 V reference for 16-bit DAC calibration in portable multimeters. IC Role / Device Role / Timing Role: Precision voltage source with ±5% initial tolerance and <100 ppm/°C tempco, used in ratiometric reference chain. Use Value: Enables factory calibration traceability to NIST standards via 120 V nominal point, supported by 0.085 %/°C tempco above 10 V. |
Use Scenario: Providing certified 120 V reference in handheld pressure calibrators requiring field recalibration. IC Role / Device Role / Timing Role: Primary voltage standard in battery-powered test equipment, operating from −25°C to +70°C ambient. Use Value: Maintains regulation integrity across full industrial temperature range (−65°C to +200°C), ensuring calibration validity during transport and storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5380B | Same electrical specs but SnPb lead finish; no Pb-free designation | Not compliant with RoHS or China RoHS; restricted in EU/China market deployments | Select 1N5380BG when Pb-free compliance is required for final product certification |
| 1N5381BG | 130 V nominal zener voltage (123.5–136.5 V range); otherwise identical package, surge rating, and thermal specs | Used where higher clamping threshold is needed to avoid false triggering on 120 V nominal systems with 10% tolerance | Choose 1N5381BG if system requires 130 V regulation instead of 120 V - same footprint and reliability profile |
Compared with 1N5380B, the 1N5380BG offers identical performance with Pb-free compliance; compared with 1N5381BG, it provides 120 V regulation versus 130 V, making it optimal for legacy 120 V reference designs requiring drop-in replacement without layout change.
Availability
1N5380BG is available at Aetrix Electronics and suitable for industrial power supply regulation, overvoltage clamp for DC bus, programmable reference source, and field instrument calibration standard requiring stable component supply across extended temperature and surge conditions.
Supply support for 1N5380BG 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensor, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The 1N53 Series belongs to onsemi's Surmetic™ Zener portfolio, engineered for high-reliability voltage regulation in harsh environments - emphasizing surge resilience, wide temperature operation, and tight parametric control.
FAQ
What is the nominal zener voltage and tolerance of the 1N5380BG?
The 1N5380BG has a nominal zener voltage of 120 V with a guaranteed tolerance of ±5%, meaning its actual breakdown voltage falls between 114 V and 126 V when tested at 10 mA (IZT). This specification is confirmed in the onsemi datasheet Rev. 19, Table on page 3, and applies strictly to the 1N5380BG variant with Pb-free packaging.
What is the maximum surge current rating for the 1N5380BG and under what conditions?
The 1N5380BG is rated for a maximum non-repetitive surge current of 1150 A at a pulse width of 8.3 ms, per JEDEC standard testing conditions. This value is specified in the Electrical Characteristics table on page 3 of the onsemi datasheet and reflects capability under single-event transient suppression without permanent degradation.
Does the 1N5380BG have a defined forward voltage specification?
Yes - the 1N5380BG has a maximum forward voltage (VF) of 1.3 V at a forward current (IF) of 1.0 A, as stated in the Electrical Characteristics summary on page 2 of the onsemi datasheet. This parameter enables bidirectional transient clamping functionality when the device conducts in forward bias during negative excursions.
What package type and marking identify the 1N5380BG?
The 1N5380BG uses the axial-lead Surmetic™ 40 plastic package (JEDEC CASE 017AA), with cathode polarity indicated by a colored band. The "G" suffix explicitly denotes Pb-free construction, and the device marking reads "1N5380B" followed by date code and assembly location per the Marking Diagram on page 1 of the datasheet.
How does the 1N5380BG's thermal resistance affect its power handling capability?
The 1N5380BG has a junction-to-lead thermal resistance (θJL) of 25 °C/W at TL = 25°C with 3/8″ lead length. This means each watt dissipated raises the junction temperature 25°C above lead temperature - limiting continuous power to 5 W only when leads are maintained at ≤25°C; derating is required at higher ambient or lead temperatures per the Maximum Ratings table.
1N5380BG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 120 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 170 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 91.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
1N5380BG FAQ
1.How can I place an order for 1N5380BG through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5380BG 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 1N5380BG reliable?
The price and inventory of 1N5380BG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5380BG is usually 5 days.
3.What payment methods are accepted for 1N5380BG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5380BG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5380BG?
1N5380BG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5380BG 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 1N5380BG?
For technical support, including 1N5380BG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5380BG requirements.
6.How does Aetrix verify that 1N5380BG is sourced from the original manufacturer or authorized distributors?
All 1N5380BG 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 1N5380BG meets industry standards.
7.What is the process for return or replacement of 1N5380BG?
All 1N5380BG units undergo pre-shipment inspection (PSI). If there is an issue with 1N5380BG, 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 1N5380BG part is unused and in its original packaging.
Return procedure for 1N5380BG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5380BG Tags
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