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onsemi 1N5359B
- Part No.:
- 1N5359B
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5359B.pdf
- Description:
- DIODE ZENER 24V 5W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:9,588
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Product details
Overview
1N5359B from onsemi is a 5 W axial-lead Zener diode with nominal zener voltage of 24 V, ±5% tolerance, 50 Ω maximum zener impedance at 3.5 mA test current, and 198 A peak surge current rating for 8.3 ms pulses. 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 1N5359B datasheet, pinout, applications, or equivalent options, key selection criteria include its 24 V regulation point, 5 W steady-state dissipation capability, 198 A surge rating, low leakage (0.55 mA at 18.2 V), and axial plastic package (Case 017AA) suitable for through-hole PCB assembly and high-reliability industrial environments.
Technical Context
The 1N5359B employs a silicon-oxide passivated junction to achieve tight voltage tolerance and stable regulation across temperature. Its zener voltage is specified at IZT = 3.5 mA with guaranteed min/typ/max values of 22.8 V / 24 V / 25.2 V and exhibits a positive temperature coefficient above 10 V, typical for 24 V units.
Thermal performance is defined by junction-to-lead resistance (θJL = 25 °C/W) and derating above 25 °C (40 mW/°C). The device supports pulsed operation up to 200 °C junction temperature under low-duty-cycle conditions, while DC operation is limited to 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24 V nominal, ±5% tolerance (22.8–25.2 V); enables precise 24 V rail clamping or reference generation |
| Power Dissipation (PD) | 5 W at TL = 25 °C; supports continuous regulation in medium-power supplies without heatsinking |
| Zener Impedance (ZZT) | 50 Ω max at IZT = 3.5 mA; ensures low dynamic resistance for stable regulation under varying load |
| Surge Current (IR) | 198 A peak for 8.3 ms; provides robust transient overvoltage suppression per IEC 61000-4-5 Level 4 |
| Leakage Current (IR) | 0.55 mA max at VR = 18.2 V; minimizes standby power loss in always-on protection circuits |
| Junction-to-Lead Thermal Resistance | 25 °C/W; allows thermal design using lead length as primary heat path to PCB copper |
| ESD Rating | Class 3 (>16 kV HBM); withstands handling and board-level ESD events without parameter shift |
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 node | Connected to lower-potential side of regulated circuit; defines reference ground for shunt regulation |
| Cathode | Zener breakdown terminal / Regulation output node | Connected to higher-potential rail; maintains fixed 24 V drop when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Guarantees 22.8–25.2 V regulation window without post-manufacture trimming |
| 198 A surge rating (8.3 ms) | Enables single-device transient suppression meeting industrial surge immunity requirements |
| Silicon-oxide passivated junction | Delivers long-term stability and low parameter drift under thermal cycling and humidity stress |
| Pb-free plastic package (RoHS compliant) | Supports lead-free reflow and wave soldering at 260 °C for 10 s without degradation |
| −65 °C to +200 °C operating range | Validates use in automotive engine compartments and industrial motor drives with wide ambient swings |
Applications
| Industrial Power Supply Regulation | Overvoltage Protection Circuit |
|---|---|
Use Scenario: Stabilizing feedback voltage in 24 V DC-DC converter secondary-side error amplifiers. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 24 V setpoint to optocoupler input or TL431 comparator. Use Value: Maintains ±1% output regulation across line/load transients due to 50 Ω dynamic impedance and low 0.55 mA leakage. |
Use Scenario: Clamping induced surges on 24 V control bus in PLC I/O modules. IC Role / Device Role / Timing Role: Fast-acting shunt protector diverting >198 A transients away from downstream logic and analog ICs. Use Value: Survives repeated 8.3 ms surges per IEC 61000-4-5 without parameter shift, eliminating need for external MOVs in cost-sensitive designs. |
| Automotive Body Control Module | Test Equipment Reference Source |
Use Scenario: Providing stable 24 V bias for CAN transceiver VCC in 24 V truck ECUs. IC Role / Device Role / Timing Role: Low-drift voltage reference ensuring CAN signal integrity during cold-crank (6–16 V battery dips). Use Value: Operates reliably from −65 °C to +150 °C ambient, with <0.1%/°C tempco above 10 V enabling consistent CAN common-mode margin. |
Use Scenario: Generating calibrated 24 V reference in portable multimeter front-end calibration circuits. IC Role / Device Role / Timing Role: Precision shunt regulator supplying known voltage to ADC reference buffer and DAC feedback loop. Use Value: ±5% initial tolerance and <100 ppm/°C long-term drift support 0.1% measurement accuracy over 0–50 °C operating 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 |
|---|---|---|---|
| 1N5359BRLG | Same electrical specs; tape-and-reel packaging (4000 pcs/reel) vs. bulk box (1000 pcs) | Optimized for automated SMT placement; requires reel feeder setup and orientation verification | Select for high-volume production where pick-and-place efficiency outweighs manual assembly flexibility |
| BZX85C24 | 1.3 W rating, 20 Ω ZZT, 24 V ±5%, TO-204AA metal can package | Lower power handling limits use to <100 mA continuous; metal case offers better thermal conduction but larger footprint | Select when board space permits metal-can thermal performance and legacy design compatibility is required |
Compared with 1N5359B, the 1N5359BRLG offers identical regulation performance in automated manufacturing, while the BZX85C24 trades 5 W capability for smaller thermal mass and legacy metal-can reliability-neither is pin-compatible, requiring layout revision for substitution.
Availability
1N5359B is available at Aetrix Electronics and suitable for industrial power supply regulation, overvoltage protection circuits, and automotive body control modules requiring stable component supply, RoHS compliance, and proven surge resilience.
Supply support for 1N5359B 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, analog, sensor, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The 1N53 Series belongs to onsemi's Surmetic™ 40 Zener regulator family, engineered for high-reliability voltage reference and clamping in harsh-environment applications where stability, surge immunity, and long-term parametric consistency are critical.
FAQ
What is the maximum continuous power dissipation for the 1N5359B at 25°C?
The 1N5359B has a maximum steady-state power dissipation of 5 W at lead temperature (TL) = 25°C with 3/8 inch lead length. Derating is required above 25°C at 40 mW/°C, reducing usable power to 4 W at 50°C ambient. This rating assumes adequate PCB copper area for heat sinking via leads.
Does the 1N5359B meet RoHS and lead-free soldering requirements?
Yes, the 1N5359B is offered in Pb-free packaging (indicated by "G" suffix) and complies with RoHS Directive 2011/65/EU. It supports lead-free reflow and wave soldering at 260°C for 10 seconds, per onsemi's Soldering and Mounting Techniques Reference Manual.
What is the zener impedance of the 1N5359B and why does it matter?
The 1N5359B has a maximum zener impedance (ZZT) of 50 Ω at IZT = 3.5 mA. This low dynamic resistance ensures minimal output voltage variation under changing load currents-critical for maintaining regulation accuracy in feedback loops and reference circuits.
Can the 1N5359B be used for transient voltage suppression in industrial environments?
Yes, the 1N5359B supports up to 198 A peak non-repetitive surge current for 8.3 ms pulses, making it suitable for IEC 61000-4-5 Level 4 surge protection in 24 V industrial control systems. Its 5 W power rating and 25 °C/W thermal resistance enable reliable clamping without thermal runaway.
How does temperature affect the zener voltage of the 1N5359B?
The 1N5359B exhibits a positive temperature coefficient typical for 24 V Zeners-approximately +0.08%/°C near 25°C. This means its zener voltage increases ~19 mV/°C, enabling predictable compensation in temperature-stable references when combined with negative-coefficient components.
1N5359B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 24 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 3.5 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 18.2 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
1N5359B FAQ
1.How can I place an order for 1N5359B through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5359B 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 1N5359B reliable?
The price and inventory of 1N5359B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5359B is usually 5 days.
3.What payment methods are accepted for 1N5359B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5359B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5359B?
1N5359B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5359B 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 1N5359B?
For technical support, including 1N5359B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5359B requirements.
6.How does Aetrix verify that 1N5359B is sourced from the original manufacturer or authorized distributors?
All 1N5359B 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 1N5359B meets industry standards.
7.What is the process for return or replacement of 1N5359B?
All 1N5359B units undergo pre-shipment inspection (PSI). If there is an issue with 1N5359B, 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 1N5359B part is unused and in its original packaging.
Return procedure for 1N5359B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5359B Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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BZT52C15-7-F
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BZX84C3V3LT1G
onsemi
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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
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SMAZ12-13-F
Diodes Incorporated
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