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onsemi 1N5363B
- Part No.:
- 1N5363B
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5363B.pdf
- Description:
- DIODE ZENER 30V 5W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:5,372
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Product details
Overview
1N5363B 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 140 mA maximum DC zener current. It provides precision voltage regulation in power supply reference and overvoltage protection circuits operating up to +150°C junction temperature.
For engineers reviewing the 1N5363B datasheet, pinout, applications, or equivalent options, key selection criteria include zener voltage stability under thermal drift, surge current capability (158 A @ 8.3 ms), low leakage (<0.6 µA @ 22.8 V), and Pb-free Surmetic 40 plastic package compatibility with automated assembly.
Technical Context
The 1N5363B operates as a silicon-oxide passivated junction Zener regulator, delivering stable reverse breakdown at 30 V with temperature coefficient of +0.075 %/°C above 10 V. Its 40 Ω dynamic impedance at IZT = 8 mA ensures tight regulation under varying load conditions.
Designed for DC and pulsed operation, it supports maximum junction temperature of +200°C (non-repetitive) and +150°C (continuous), with thermal resistance θJL = 25 °C/W at 3/8″ lead length. Surge rating reaches 158 A peak for 8.3 ms square-wave pulses per Figure 5.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 28.5 V min / 30 V nom / 31.5 V max - defines regulated output voltage window under 8 mA test current |
| Power Dissipation (PD) | 5 W at TL = 25°C - sets absolute steady-state thermal limit; derates 40 mW/°C above 25°C |
| Zener Impedance (ZZT) | 40 Ω max @ IZT = 8 mA - determines output voltage variation under load transients |
| Max DC Zener Current (IZM) | 140 mA - derived from PD/VZ(min); limits continuous regulation current without thermal runaway |
| Leakage Current (IR) | 0.6 µA max @ VR = 22.8 V - ensures minimal standby power loss in high-impedance bias networks |
| Surge Current (IRM) | 158 A @ 8.3 ms - enables transient overvoltage clamping in line-powered systems |
| ESD Rating | Class 3 (>16 kV HBM) - provides robust handling during board assembly and field service |
Pinout & Package
Package: Axial-lead Surmetic 40 plastic case (JEDEC CASE 017AA), void-free transfer-molded thermosetting material, cathode indicated by band, leads solderable per 260°C/10 s specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to circuit ground or lower-potential rail; establishes reference polarity for regulation |
| Cathode | Zener breakdown terminal / regulated output node | Delivers stable 30 V output when reverse-biased; must be connected to unregulated input via current-limiting resistor |
Key Features
| Feature | Design Value |
|---|---|
| Silicon-oxide passivated junction | Enables tight parameter control and long-term stability across temperature and time |
| ±5% zener voltage tolerance | Reduces need for post-assembly trimming in voltage reference designs |
| 158 A surge rating @ 8.3 ms | Clamps lightning-induced or inductive-switching transients without failure |
| Pb-free Surmetic 40 package | Complies with RoHS and JEDEC J-STD-020 reflow profiles for surface-mount compatible through-hole assembly |
| −65°C to +200°C operating range | Supports deployment in automotive engine compartments and industrial motor drives |
Applications
| Industrial Power Supply Reference | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Precision 30 V reference in isolated DC-DC converter feedback loop. IC Role / Device Role / Timing Role: Zener diode provides stable voltage reference for optocoupler-based error amplifier. Use Value: 40 Ω zener impedance minimizes output voltage ripple under dynamic load steps. |
Use Scenario: Input-stage transient suppression in 24 V PLC I/O module. IC Role / Device Role / Timing Role: Clamps ESD and inductive kickback surges to protect downstream MOSFET gate drivers. Use Value: 158 A surge rating handles 1 kV/µs fast-rising transients without degradation. |
| Automotive Battery Monitoring | Test Equipment Voltage Calibration |
Use Scenario: Regulated bias supply for analog front-end in 12 V vehicle battery sensor. IC Role / Device Role / Timing Role: Provides stable 30 V rail for ADC reference and op-amp biasing under cold-crank conditions. Use Value: −65°C to +150°C continuous operation ensures reliability across automotive temperature extremes. |
Use Scenario: Fixed-voltage calibration standard in portable multimeter internal reference chain. IC Role / Device Role / Timing Role: Serves as traceable 30 V reference point for self-test and auto-zero routines. Use Value: ±5% initial tolerance and low TC enable <±0.1% total error over 0–50°C ambient 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 |
|---|---|---|---|
| 1N5363RLG | Pb-free tape-and-reel variant of same die; identical electrical specs and package dimensions | No functional difference; selected for automated pick-and-place manufacturing | Choose 1N5363RLG for SMT-line compatibility; same thermal and regulation performance as 1N5363B |
| BZX85C30 | 1.3 W rating, 30 V ±5%, 35 Ω ZZT @ 10 mA - lower power, higher impedance, TO-204AA metal can | Not suitable for 5 W continuous dissipation; limited to low-power references or signal-level clamping | Select BZX85C30 only where power demand is <1.3 W; 1N5363B required for >1.5 W sustained regulation |
Compared with 1N5363RLG, the 1N5363B offers identical regulation but in bulk box packaging for manual or semi-automated assembly; versus BZX85C30, it delivers 3.8× higher power handling and lower dynamic impedance for demanding industrial power rails.
Availability
1N5363B is available at Aetrix Electronics and suitable for industrial power supply reference, overvoltage protection clamp, and automotive battery monitoring requiring stable component supply and full RoHS compliance.
Supply support for 1N5363B 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 focused on energy-efficient electronics for automotive, industrial, cloud, and IoT applications.
The 1N53 series belongs to onsemi's discrete Zener regulator product line, engineered for high-reliability voltage reference and transient suppression in harsh-environment power systems.
FAQ
What is the exact zener voltage tolerance and test condition for 1N5363B?
The 1N5363B has a ±5% zener voltage tolerance, specified as 28.5 V minimum, 30 V nominal, and 31.5 V maximum at IZT = 8 mA, TA = 25°C. This tolerance is guaranteed per JEDEC standard and verified during production testing with 40 ±10 ms current application prior to measurement.
Can 1N5363B replace lower-voltage Zeners like 1N5348B in the same circuit?
No - the 1N5363B is not a drop-in replacement for 1N5348B due to its 30 V zener voltage versus 11 V. Substituting it would cause catastrophic overvoltage at the regulated node. Circuit redesign including current-limiting resistor recalculation and load compatibility verification is mandatory before any cross-series substitution involving 1N5363B.
What is the maximum allowable junction temperature for continuous operation of 1N5363B?
The 1N5363B supports continuous operation up to +150°C junction temperature. While the absolute maximum storage and non-repetitive pulsed rating is +200°C, exceeding +150°C under DC conditions risks accelerated parameter drift and reduced long-term reliability. Thermal design must ensure TJ ≤ 150°C using θJL = 25 °C/W and measured lead temperature.
How does the 1N5363B's surge current rating compare to its steady-state power rating?
The 1N5363B sustains 5 W continuously but handles 158 A peak surge current for 8.3 ms - equivalent to ~2000 W instantaneous power. This 400× power ratio reflects its ability to absorb short-duration transients without failure, enabled by thermal mass of the Surmetic 40 package and silicon junction design. Steady-state dissipation remains capped at 5 W.
Is the 1N5363B RoHS-compliant and what does the 'G' suffix indicate?
Yes, the 1N5363B is RoHS-compliant. The 'G' suffix (e.g., 1N5363BG) explicitly denotes Pb-free packaging per onsemi's RoHS implementation. Standard 1N5363B parts shipped by Aetrix meet RoHS Directive 2011/65/EU and are qualified to JEDEC J-STD-020 moisture sensitivity level 1, with no exemptions required for lead content.
1N5363B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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
1N5363B FAQ
1.How can I place an order for 1N5363B through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5363B 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 1N5363B reliable?
The price and inventory of 1N5363B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5363B is usually 5 days.
3.What payment methods are accepted for 1N5363B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5363B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5363B?
1N5363B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5363B 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 1N5363B?
For technical support, including 1N5363B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5363B requirements.
6.How does Aetrix verify that 1N5363B is sourced from the original manufacturer or authorized distributors?
All 1N5363B 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 1N5363B meets industry standards.
7.What is the process for return or replacement of 1N5363B?
All 1N5363B units undergo pre-shipment inspection (PSI). If there is an issue with 1N5363B, 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 1N5363B part is unused and in its original packaging.
Return procedure for 1N5363B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5363B Tags
-
MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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