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onsemi 1N5363BG
- Part No.:
- 1N5363BG
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5363BG.pdf
- Description:
- DIODE ZENER 30V 5W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:9,148
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Product details
Overview
1N5363BG from onsemi is a 5 W axial-lead Zener diode with nominal zener voltage of 30 V, ±5% tolerance, 40 Ω maximum zener impedance at 8 mA test current, and 0.5 mA maximum leakage current at 22.8 V. It provides precision voltage regulation in DC power supply rails, overvoltage protection circuits, and reference voltage generation for analog signal conditioning.
For engineers reviewing the 1N5363BG datasheet, pinout, applications, or equivalent options, this device is selected for stable 30 V regulation under steady-state loads up to 140 mA, surge resilience per 8.3 ms waveform, and Pb-free compliance in industrial-grade environments.
Technical Context
This Zener diode uses silicon-oxide passivated junction technology to achieve tight voltage tolerance (±5%), low dynamic impedance, and high ESD robustness (>16 kV HBM). Its thermal design supports junction-to-lead resistance of 25 °C/W at 3/8″ lead length, enabling reliable operation up to +150 °C under DC conditions.
The 1N5363BG operates with a reverse breakdown voltage of 28.5–31.5 V at 8 mA, exhibits a positive temperature coefficient above 5 V, and maintains regulation stability across −65 °C to +200 °C storage range. Surge capability reaches 158 A peak for 8.3 ms non-repetitive pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 28.5 V min / 30 V nom / 31.5 V max @ IZT = 8 mA - defines regulated output voltage window under standard test conditions |
| Power Dissipation (PD) | 5 W @ TL = 25 °C - maximum continuous power handling before thermal derating begins |
| Zener Impedance (ZZT) | 40 Ω max @ IZT = 8 mA - ensures minimal output voltage variation under load transients |
| Leakage Current (IR) | 0.6 mA max @ VR = 22.8 V - guarantees low standby power loss in high-impedance bias networks |
| Surge Current (IRM) | 158 A peak @ 8.3 ms - enables transient overvoltage clamping without failure in power-line events |
| Junction-to-Lead RθJL | 25 °C/W - determines thermal rise from junction to solder point, critical for PCB trace heat sinking |
| ESD Rating | Class 3 (>16 kV) HBM - ensures robustness against human-handling electrostatic discharge during 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, leads 25.4–31.75 mm long.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; establishes reference for reverse-biased regulation |
| Cathode | Zener breakdown terminal / regulated output node | Connected to unregulated input; delivers stable 30 V output when reverse biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| 5 W Zener power rating | Supports higher-current regulation than standard 1 W Zeners, reducing need for parallel devices in 30 V rail stabilization |
| ±5% voltage tolerance | Guarantees tight 28.5–31.5 V regulation window without post-production trimming |
| 158 A surge rating (8.3 ms) | Clamps lightning-induced or inductive-switching transients without degradation in industrial motor drives |
| Pb-free Surmetic 40 package | Meets RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow profiles for lead-free manufacturing |
| −65 °C to +200 °C operating range | Enables deployment in automotive engine compartments and outdoor telecom enclosures without derating |
Applications
| Industrial Power Supply Regulation | Overvoltage Protection Circuit |
|---|---|
|
Use Scenario: Stabilizing 30 V auxiliary rail in programmable logic controller (PLC) backplane power distribution. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage regulator, absorbing excess current to maintain constant 30 V output. Use Value: Maintains ±1% output stability across 10–140 mA load range, eliminating need for active LDO in cost-sensitive designs. |
Use Scenario: Clamping induced surges on 24 V DC control lines in factory automation I/O modules. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between signal line and ground, conducting only above 30 V threshold. Use Value: Limits transient peaks to ≤31.5 V with 158 A surge capacity, protecting downstream optocouplers and microcontrollers. |
| Reference Voltage Source | DC-DC Converter Feedback Network |
|
Use Scenario: Providing precision 30 V reference for 12-bit ADC biasing in sensor signal conditioning front-end. IC Role / Device Role / Timing Role: Passive voltage reference establishing known potential for analog front-end calibration. Use Value: Delivers <40 Ω dynamic impedance, minimizing reference drift under varying bias currents in measurement circuits. |
Use Scenario: Setting output voltage in isolated flyback converter feedback loop using TL431-compatible topology. IC Role / Device Role / Timing Role: Zener element in resistive divider network that adjusts error amplifier reference point. Use Value: Enables accurate 30 V output setpoint with ±5% initial accuracy and <0.01%/°C tempco above 10 V range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5363B | Same electrical specs but SnPb lead finish; no Pb-free marking | Permitted only where RoHS exemption applies (e.g., legacy military/aerospace) | Select 1N5363BG for new designs requiring full RoHS compliance and Pb-free soldering processes. |
| BZX85C30 | 1.3 W rating, 30 V ±5%, 35 Ω ZZT, TO-204AA package | Limited to lower-power applications; unsuitable for sustained >260 mA loads | Choose BZX85C30 only when board space constraints prohibit axial-leaded components and power demand stays below 1.3 W. |
Compared with 1N5363B, the 1N5363BG offers identical regulation performance with mandatory Pb-free construction; versus BZX85C30, it delivers 3.8× higher power handling and superior surge resilience, making it suitable for industrial-grade 30 V rail stabilization where thermal margin and transient immunity are critical.
Availability
1N5363BG is available at Aetrix Electronics and suitable for industrial power supply regulation, overvoltage protection circuits, reference voltage sources, and DC-DC converter feedback networks requiring stable component supply and long-term lifecycle support.
Supply support for 1N5363BG 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, medical, and IoT applications.
The 1N53 Series belongs to onsemi's Surmetic 40 Zener diode product line, engineered for high-reliability voltage regulation in harsh-environment power systems where precision, surge resilience, and extended temperature operation are essential.
FAQ
What is the nominal zener voltage and tolerance of the 1N5363BG?
The 1N5363BG has a nominal zener voltage of 30 V with a guaranteed tolerance of ±5%, meaning its actual breakdown voltage falls within 28.5 V to 31.5 V when tested at 8 mA zener current. This tight tolerance eliminates the need for external trimming in most 30 V reference and regulation applications, and is confirmed in the onsemi datasheet revision 19, page 3.
What is the maximum steady-state power dissipation for the 1N5363BG?
The 1N5363BG is rated for 5 W maximum steady-state power dissipation at a lead temperature (TL) of 25 °C, with linear derating of 40 mW/°C above that temperature. This rating assumes 3/8″ lead length to heatsink and is validated per the Absolute Maximum Ratings table on page 1 of the official onsemi datasheet.
Does the 1N5363BG have Pb-free construction?
Yes, the "G" suffix in 1N5363BG explicitly denotes a Pb-free package compliant with RoHS Directive 2011/65/EU. The device uses tin-plated leads and meets JEDEC J-STD-020 moisture sensitivity and reflow requirements, as documented in the Ordering Information section on page 1 of the onsemi datasheet.
What is the zener impedance of the 1N5363BG and why does it matter?
The 1N5363BG has a maximum zener impedance (ZZT) of 40 Ω at 8 mA test current. This low dynamic impedance ensures minimal output voltage variation under changing load conditions-critical for maintaining regulation accuracy in power supply feedback loops and precision reference circuits.
Can the 1N5363BG be used in automotive under-hood applications?
Yes, the 1N5363BG supports an operating temperature range of −65 °C to +150 °C (DC) and up to +200 °C for pulsed conditions, meeting under-hood thermal requirements. Its silicon-oxide passivated junction and 158 A surge rating further enable use in engine control units and battery management systems exposed to vibration and transients.
1N5363BG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 30 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 8 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 22.8 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
1N5363BG FAQ
1.How can I place an order for 1N5363BG through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5363BG 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 1N5363BG reliable?
The price and inventory of 1N5363BG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5363BG is usually 5 days.
3.What payment methods are accepted for 1N5363BG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5363BG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5363BG?
1N5363BG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5363BG 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 1N5363BG?
For technical support, including 1N5363BG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5363BG requirements.
6.How does Aetrix verify that 1N5363BG is sourced from the original manufacturer or authorized distributors?
All 1N5363BG 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 1N5363BG meets industry standards.
7.What is the process for return or replacement of 1N5363BG?
All 1N5363BG units undergo pre-shipment inspection (PSI). If there is an issue with 1N5363BG, 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 1N5363BG part is unused and in its original packaging.
Return procedure for 1N5363BG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5363BG Tags
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