1N5287 Overview
The 1N5287 is a precision Zener diode designed for voltage regulation and reference applications. Engineered for stable voltage breakdown characteristics, it provides reliable performance in environments requiring accurate voltage control. With its robust construction and well-defined electrical parameters, this device is ideal for industrial and commercial electronics where consistent voltage stabilization is critical. Sourced from IC Manufacturer, the component combines durability and precision, making it a versatile solution for various power supply and protection circuits.
1N5287 Technical Specifications
| Parameter | Specification | Unit | Notes |
|---|---|---|---|
| Zener Voltage (Vz) | 24 V | Volts | Measured at test current |
| Test Current (Iz) | 20 mA | Milliamps | Current at which Vz is specified |
| Maximum Power Dissipation (Pd) | 5 W | Watts | Continuous operation limit |
| Dynamic Impedance (Zzt) | 7 ?? | Ohms | At test current |
| Maximum Reverse Current (Ir) | 0.1 ??A | Microamps | At Vz rated voltage |
| Operating Temperature Range | -65 to +200 | ??C | Junction temperature |
| Package Type | DO-41 | ?? | Standard axial-lead glass package |
| Forward Voltage Drop (Vf) | 1.2 V | Volts | At 200 mA forward current |
1N5287 Key Features
- Precise Voltage Regulation: Maintains a stable 24 V Zener voltage at test current, ensuring accurate voltage references for sensitive circuits.
- Robust Power Handling: Supports continuous power dissipation up to 5 W, suitable for demanding industrial environments.
- Low Dynamic Impedance: Offers a dynamic impedance of 7 ??, providing efficient voltage stabilization with minimal voltage variation under load changes.
- Wide Operating Temperature Range: Operates reliably from -65??C up to +200??C, enabling functionality in harsh thermal conditions.
1N5287 Advantages vs Typical Alternatives
This Zener diode delivers superior voltage regulation with low dynamic impedance compared to standard voltage reference diodes, resulting in enhanced accuracy and stability. Its high power dissipation capability and wide temperature tolerance make it more reliable for industrial applications where standard alternatives may fail due to thermal or electrical stresses.
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Typical Applications
- Voltage Regulation Circuits: Provides a stable 24 V reference voltage in power supplies and voltage regulator modules requiring precise voltage control and protection.
- Surge Protection: Acts as a voltage clamp to protect sensitive electronic components from voltage spikes in power lines or signal paths.
- Instrumentation: Used in measurement equipment for maintaining consistent voltage levels critical for accurate sensor and analog circuit operation.
- Industrial Electronics: Suitable for control systems and automation hardware requiring robust voltage stabilization under varying environmental conditions.
1N5287 Brand Info
The 1N5287 is a recognized Zener diode widely supplied by reputable semiconductor manufacturers specializing in discrete components. It complies with industry standards for reliability and performance, featuring a glass-encapsulated DO-41 axial package that ensures mechanical protection and ease of PCB mounting. Its well-established design and consistent quality make it a go-to choice for engineers sourcing dependable voltage regulation components in industrial-grade applications.
FAQ
What is the typical Zener voltage of this diode and at what current is it specified?
The device is specified with a Zener voltage of 24 volts measured at a test current of 20 milliamps. This test condition ensures accurate characterization of voltage regulation performance under typical operating conditions.
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Can this diode handle high power dissipation continuously?
Yes, it supports a maximum continuous power dissipation of 5 watts, making it suitable for applications requiring sustained voltage regulation or transient power absorption without damage.
What package type does this diode use and why is it important?
It is housed in a DO-41 axial-lead glass package, which provides reliable mechanical protection and thermal performance. This package type is preferred for easy integration into through-hole PCB designs and offers good heat dissipation.
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What are the temperature limits for reliable operation of this diode?
The diode operates within a junction temperature range from -65??C to +200??C, allowing it to function reliably in environments with wide temperature variations, from extreme cold to high heat.
How does the dynamic impedance affect the diode’s performance in voltage regulation?
Dynamic impedance of 7 ohms indicates how much the voltage will change with varying current. A low dynamic impedance means the diode maintains a stable voltage despite current fluctuations, improving voltage regulation accuracy and circuit stability.
