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onsemi 1N5361BG
- Part No.:
- 1N5361BG
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5361BG.pdf
- Description:
- DIODE ZENER 27V 5W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,616
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Product details
Overview
1N5361BG from onsemi is a 5 W axial-lead Zener diode with nominal zener voltage of 27 V, ±5% tolerance, 50 Ω maximum zener impedance at 5 mA test current, and 0.6 mA maximum leakage current at 20.6 V reverse voltage. It operates as a precision voltage reference or shunt regulator in DC power supply feedback paths, overvoltage protection circuits, and voltage-clamping applications.
For engineers reviewing the 1N5361BG datasheet, pinout, applications, or equivalent options, key selection criteria include its 27 V regulation point, 120 mA maximum DC zener current, 180 W surge rating at 8.3 ms, ESD robustness (>16 kV HBM), and Pb-free Surmetic 40 plastic package compatibility with automated through-hole assembly.
Technical Context
The 1N5361BG uses a silicon-oxide passivated junction to achieve tight voltage tolerance and stable regulation across temperature. Its zener voltage is specified at IZT = 5 mA with guaranteed min/typ/max values of 25.65 V / 27 V / 28.35 V, and it maintains low dynamic impedance (ZZT ≤ 50 Ω) under regulated conditions.
Thermal performance is defined by junction-to-lead resistance (θJL = 25 °C/W) and derating above 25 °C (40 mW/°C). The device supports operation from −65 °C to +200 °C, with DC max junction temperature limited to +150 °C and pulsed limits up to +200 °C at low duty cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 25.65 V to 28.35 V @ IZT = 5 mA - defines precise regulation window for feedback loop stability |
| Max Power Dissipation | 5 W @ TL = 25 °C - sets absolute thermal limit for continuous shunt regulation |
| Zener Impedance (ZZT) | ≤50 Ω @ IZT = 5 mA - ensures minimal output voltage variation under load transients |
| Leakage Current (IR) | ≤0.6 mA @ VR = 20.6 V - guarantees low standby power loss in high-impedance bias networks |
| Surge Rating | 180 W @ 8.3 ms - enables transient overvoltage clamping without failure during line surges |
| ESD Rating | Class 3 (>16 kV HBM) - provides robust handling in manual assembly and field-repair environments |
| Operating Temp Range | −65 °C to +200 °C - supports deployment in automotive engine compartments and industrial motor controls |
Pinout & Package
Package: Axial-lead Surmetic 40 plastic case (JEDEC CASE 017AA), cathode indicated by band. Dimensions: 8.38–8.89 mm length × 3.30–3.68 mm diameter, leads 25.4–31.75 mm long.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side of regulated circuit; establishes reference ground for shunt regulation |
| Cathode | Zener breakdown terminal / Regulation output node | Connected to higher-potential rail; delivers stable 27 V reference when reverse-biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Guarantees tight regulation without post-manufacture trimming in cost-sensitive power supplies |
| Low zener impedance (≤50 Ω) | Maintains <1% output deviation across 1–10 mA load current changes in feedback networks |
| 180 W non-repetitive surge rating | Clamps 100 V/1.8 A transients for >8 ms without degradation in telecom line interface protection |
| Pb-free Surmetic 40 package | Enables RoHS-compliant through-hole assembly with standard 260 °C soldering profile |
| −65 °C to +200 °C operating range | Supports under-hood automotive modules and downhole oilfield electronics without derating |
Applications
| Automotive Engine Control Unit (ECU) Reference | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Stabilizing 27 V reference for microcontroller ADC voltage scaling in harsh under-hood environments. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable bias for precision analog front-end circuitry. Use Value: Maintains ±0.5% reference accuracy across −40 °C to +125 °C ambient due to low tempco and rugged packaging. |
Use Scenario: Clamping 24 V field bus inputs against ESD and lightning-induced surges in factory automation systems. IC Role / Device Role / Timing Role: Passive overvoltage protector absorbing transient energy before reaching sensitive input amplifiers. Use Value: Withstands 180 W/8.3 ms surges and >16 kV HBM ESD, eliminating need for additional TVS stages. |
| DC-DC Converter Feedback Divider | Medical Equipment Power Supply Monitor |
Use Scenario: Setting output voltage in isolated flyback converters via optocoupler-coupled feedback network. IC Role / Device Role / Timing Role: Precision zener element establishing accurate voltage threshold for error amplifier comparison. Use Value: 27 V nominal value enables clean 5 V/12 V/15 V outputs with <1% total error including tempco and tolerance stack-up. |
Use Scenario: Monitoring 24 V auxiliary rails in diagnostic imaging systems requiring fail-safe undervoltage detection. IC Role / Device Role / Timing Role: Voltage threshold detector triggering shutdown when supply drops below 25.65 V minimum. Use Value: Guaranteed 25.65 V min VZ ensures reliable trip point across lifetime and temperature without calibration drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5361B | Same electrical specs but SnPb lead finish; no Pb-free compliance | Not suitable for RoHS-regulated medical or consumer products | Select 1N5361BG when Pb-free compliance is mandatory per IPC-J-STD-609 |
| BZX85C27 | 1.3 W rating, 20 Ω ZZT, 27 V ±5%, DO-41 package | Limited to low-power bias networks; cannot sustain 120 mA IZM or 180 W surges | Choose BZX85C27 only for space-constrained PCBs where 5 W dissipation is unnecessary |
Compared with 1N5361BG, the 1N5361B lacks RoHS compliance but matches all electrical parameters, while the BZX85C27 trades 5 W power handling and surge robustness for smaller footprint-making 1N5361BG optimal for industrial-grade 27 V regulation where reliability and thermal margin are critical.
Availability
1N5361BG is available at Aetrix Electronics and suitable for automotive engine control units, industrial programmable logic controllers, and medical diagnostic power supplies requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1N5361BG 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, and medical applications.
The 1N53 Series was designed as a high-reliability, 5 W Zener family for demanding shunt regulation and voltage reference roles in mission-critical power systems where thermal stability and surge immunity are essential.
FAQ
What is the nominal zener voltage and tolerance of the 1N5361BG?
The 1N5361BG has a nominal zener voltage of 27 V with a guaranteed tolerance of ±5%, corresponding to a min/max range of 25.65 V to 28.35 V at 5 mA test current (IZT). This tight tolerance eliminates need for external trimming in precision feedback loops and ensures consistent regulation across production batches.
What is the maximum DC zener current (IZM) for the 1N5361BG?
The 1N5361BG supports a maximum DC zener current (IZM) of 120 mA, calculated from its 5 W power rating divided by the minimum zener voltage (25.65 V). This allows sustained shunt operation at up to 3.072 W (120 mA × 25.65 V) while maintaining safe junction temperature under proper lead heatsinking.
Does the 1N5361BG have Pb-free construction?
Yes, the "G" suffix in 1N5361BG explicitly denotes a Pb-free Surmetic 40 plastic package compliant with RoHS Directive 2011/65/EU. Lead finish is matte tin, qualified for standard 260 °C wave soldering profiles with 10-second dwell time at 1/16 inch from case body.
What is the zener impedance (ZZT) specification for the 1N5361BG?
The 1N5361BG has a maximum zener impedance (ZZT) of 50 Ω measured at IZT = 5 mA. This low dynamic impedance ensures minimal output voltage deviation (<0.25 V) when load current varies between 1 mA and 10 mA, making it suitable for high-stability reference applications.
Can the 1N5361BG be used in high-temperature environments like automotive under-hood locations?
Yes, the 1N5361BG is rated for operation from −65 °C to +200 °C, with DC maximum junction temperature of +150 °C. Its silicon-oxide passivated junction and thermosetting plastic package enable reliable performance in automotive engine control units, provided lead thermal resistance (θJL = 25 °C/W) is managed via adequate copper pour or heatsinking.
1N5361BG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 27 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 5 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 20.6 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
1N5361BG FAQ
1.How can I place an order for 1N5361BG through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5361BG 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 1N5361BG reliable?
The price and inventory of 1N5361BG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5361BG is usually 5 days.
3.What payment methods are accepted for 1N5361BG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5361BG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5361BG?
1N5361BG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5361BG 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 1N5361BG?
For technical support, including 1N5361BG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5361BG requirements.
6.How does Aetrix verify that 1N5361BG is sourced from the original manufacturer or authorized distributors?
All 1N5361BG 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 1N5361BG meets industry standards.
7.What is the process for return or replacement of 1N5361BG?
All 1N5361BG units undergo pre-shipment inspection (PSI). If there is an issue with 1N5361BG, 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 1N5361BG part is unused and in its original packaging.
Return procedure for 1N5361BG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5361BG Tags
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MMSZ4682T1G
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MM5Z5V1ST1G
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