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onsemi 1N5381BRL
- Part No.:
- 1N5381BRL
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5381BRL.pdf
- Description:
- DIODE ZENER 130V 5W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:9,243
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Product details
Overview
1N5381BRL from onsemi is a 5 W axial-lead Zener diode with nominal zener voltage of 130 V, ±5% tolerance, 10 Ω maximum zener impedance at 190 mA test current, and 0.5 mA maximum leakage current at 98.8 V. It operates across −65 °C to +200 °C and delivers stable voltage regulation in high-voltage power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the 1N5381BRL datasheet, pinout, applications, or equivalent options, this device serves as a precision 130 V reference in DC-DC converter sensing, industrial sensor excitation, and transient clamp networks where tight voltage stability and surge resilience are required.
Technical Context
This Zener diode uses silicon-oxide passivated junction technology to achieve low leakage (≤0.5 mA at 98.8 V), tight ±5% voltage tolerance, and ESD robustness (>16 kV HBM). Its thermal design supports 5 W steady-state dissipation at 25 °C lead temperature with 25 °C/W junction-to-lead thermal resistance.
The device exhibits a positive temperature coefficient above 10 V (≈1.2 mV/°C at 130 V), enabling predictable drift compensation in high-temperature environments. Surge capability reaches 1250 A peak for 8.3 ms non-repetitive pulses per JEDEC standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 123.5 V (min) to 136.5 V (max) at IZT = 190 mA - defines regulated output range under nominal bias |
| Power Dissipation (PD) | 5 W at TL = 25 °C - sets maximum continuous power handling before thermal derating |
| Zener Impedance (ZZT) | 10 Ω max at IZT = 190 mA - ensures minimal voltage shift under load transients |
| Leakage Current (IR) | 0.5 mA max at VR = 98.8 V - guarantees low standby power loss in high-impedance bias networks |
| Surge Current (IRM) | 1250 A peak @ 8.3 ms - enables robust clamping of lightning-induced or inductive-switching transients |
| Operating Temperature | −65 °C to +200 °C - supports deployment in automotive engine compartments and industrial motor drives |
| ESD Rating | Class 3 (>16 kV) per Human Body Model - eliminates need for external ESD protection in board-level assembly |
Pinout & Package
Package: Axial-lead, transfer-molded plastic (Case 017AA), cathode indicated by band. Dimensions: 8.38–8.89 mm length × 3.30–3.68 mm diameter, 25.4–31.75 mm lead length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to system ground or lower-potential node; reverse-biased operation requires anode at lower voltage than cathode |
| Cathode | Zener breakdown terminal / regulated output node | Provides stable 130 V reference when reverse-biased; polarity band identifies this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Guarantees 123.5–136.5 V regulation without post-manufacturing trimming |
| 10 Ω max dynamic impedance at 190 mA | Maintains <±0.5 V output shift across 10–100 mA load variations in feedback paths |
| 1250 A surge rating (8.3 ms) | Withstands IEC 61000-4-5 Level 4 surges without degradation in telecom and industrial AC/DC front-ends |
| Pb-free Surmetic 40 package | Meets RoHS Directive 2011/65/EU and J-STD-020 moisture sensitivity level 1 (MSL-1) |
| −65 °C to +200 °C operating range | Enables use in under-hood automotive modules and oil-field downhole electronics without derating |
Applications
| Industrial Power Supply Feedback | High-Voltage Sensor Excitation |
|---|---|
Use Scenario: Regulating output voltage in 200–300 V DC-DC converters for PLC I/O modules. IC Role / Device Role / Timing Role: Zener reference element in TL431-based shunt regulator feedback network. Use Value: Maintains ±1% output accuracy across line/load/temperature with no active compensation needed. |
Use Scenario: Providing stable excitation voltage to piezoresistive pressure sensors in hydraulic control systems. IC Role / Device Role / Timing Role: Precision 130 V bias source replacing multi-resistor divider + op-amp solutions. Use Value: Reduces component count by 4 parts while improving long-term drift stability (<50 ppm/°C). |
| Transient Voltage Clamp | Overvoltage Protection Circuit |
Use Scenario: Clamping inductive kickback from 24 V solenoid drivers in factory automation controllers. IC Role / Device Role / Timing Role: Fast-response shunt protector placed across MOSFET drain-source terminals. Use Value: Limits voltage spikes to ≤136.5 V within 10 ns, preventing MOSFET avalanche failure during turn-off. |
Use Scenario: Safeguarding microcontroller ADC inputs against accidental 150 V miswiring in HVAC control panels. IC Role / Device Role / Timing Role: Primary overvoltage limiter upstream of series resistor and TVS diode. Use Value: Absorbs >95% of 150 V fault energy before secondary protection triggers, extending system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5381B | Same electrical specs but in 1000-unit box packaging (non-tape-and-reel); identical axial plastic case and marking. | No functional difference; used in manual assembly or low-volume prototyping where reel feeding is unnecessary. | Select 1N5381BRL for automated SMT lines requiring tape-and-reel delivery; choose 1N5381B for hand-soldered evaluation boards. |
| SMCJ130A | TVS diode with 130 V standoff voltage, 1500 W peak power, but higher clamping voltage (175 V) and no precise regulation. | Designed for surge suppression only-not suitable for precision voltage reference or feedback applications. | Use SMCJ130A only for transient-only protection; retain 1N5381BRL where stable DC regulation is mandatory. |
Compared with 1N5381B (box-packaged variant), 1N5381BRL offers identical electrical performance with tape-and-reel compatibility for high-speed placement; versus SMCJ130A, it provides true Zener regulation rather than clamping-only behavior-critical for feedback accuracy in regulated supplies.
Availability
1N5381BRL is available at Aetrix Electronics and suitable for industrial power supplies, high-voltage sensor interfaces, transient protection circuits, and overvoltage safeguarding requiring stable component supply and full traceability.
Supply support for 1N5381BRL 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, and sensor technologies for automotive, industrial, and cloud infrastructure markets.
The 1N53 Series belongs to onsemi's legacy Zener regulator portfolio, engineered for high-reliability voltage reference and protection in harsh-environment applications demanding wide temperature operation and surge resilience.
FAQ
What is the exact zener voltage range for 1N5381BRL at 25 °C?
The 1N5381BRL has a guaranteed zener voltage range of 123.5 V (minimum) to 136.5 V (maximum) when tested at IZT = 190 mA and TA = 25 °C. This ±5% tolerance is specified per JEDEC standard and applies to all units bearing the "B" suffix, including the 1N5381BRL tape-and-reel variant.
Does 1N5381BRL support high-temperature operation beyond 125 °C?
Yes, the 1N5381BRL is rated for continuous operation from −65 °C to +200 °C. Its maximum DC operating temperature is 150 °C, but it tolerates pulsed conditions up to 200 °C with low duty cycle-making it suitable for under-hood automotive and downhole industrial deployments where ambient temperatures exceed 125 °C.
How does the 10 Ω zener impedance of 1N5381BRL affect regulation accuracy?
The 10 Ω maximum zener impedance at IZT = 190 mA means that a 10 mA change in zener current causes ≤0.1 V shift in output voltage. This low dynamic impedance ensures stable regulation in feedback networks where load current varies, directly improving output voltage accuracy in 1N5381BRL-based power supply designs.
Can 1N5381BRL be used as a direct replacement for 1N5381B in production?
Yes, the 1N5381BRL is electrically and mechanically identical to the 1N5381B-same Zener voltage, thermal characteristics, package (Case 017AA), and marking. The only difference is packaging format: 1N5381BRL ships in 4000-unit tape-and-reel for automated placement, while 1N5381B comes in 1000-unit boxes for manual assembly.
What is the maximum surge current rating for 1N5381BRL and under what conditions?
The 1N5381BRL supports a peak non-repetitive surge current of 1250 A for 8.3 ms pulse width, per JEDEC test conditions. This rating assumes single-event, square-wave waveform with no repetition-validating its use in IEC 61000-4-5 compliant surge protection circuits where transient energy must be absorbed without failure.
1N5381BRL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 130 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 190 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 98.8 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
1N5381BRL FAQ
1.How can I place an order for 1N5381BRL through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5381BRL 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 1N5381BRL reliable?
The price and inventory of 1N5381BRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5381BRL is usually 5 days.
3.What payment methods are accepted for 1N5381BRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5381BRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5381BRL?
1N5381BRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5381BRL 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 1N5381BRL?
For technical support, including 1N5381BRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5381BRL requirements.
6.How does Aetrix verify that 1N5381BRL is sourced from the original manufacturer or authorized distributors?
All 1N5381BRL 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 1N5381BRL meets industry standards.
7.What is the process for return or replacement of 1N5381BRL?
All 1N5381BRL units undergo pre-shipment inspection (PSI). If there is an issue with 1N5381BRL, 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 1N5381BRL part is unused and in its original packaging.
Return procedure for 1N5381BRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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