JANS2N2221-Transistor Overview
The JANS2N2221 is a high-reliability NPN bipolar junction transistor designed for general-purpose amplification and switching applications. Noted for its rugged construction and consistent performance, this transistor supports collector currents up to 800mA and voltages up to 40V, making it suitable for a wide range of industrial and aerospace electronics. Its military-grade JAN (Joint Army-Navy) qualification ensures enhanced reliability under harsh environmental conditions. The device features a TO-18 metal can package, offering excellent thermal conductivity and durability. For trusted procurement and detailed technical support, visit IC Manufacturer.
JANS2N2221-Transistor Technical Specifications
| Parameter | Value |
|---|---|
| Transistor Type | NPN Bipolar Junction |
| Maximum Collector-Emitter Voltage (Vceo) | 40 V |
| Maximum Collector Current (Ic) | 800 mA |
| Power Dissipation (Pc) | 625 mW |
| Transition Frequency (ft) | 300 MHz |
| DC Current Gain (hFE) | 100 to 300 (typical) |
| Package Type | TO-18 Metal Can |
| Operating Temperature Range | -65??C to +200??C |
| Junction Temperature (Tj) | +200??C max |
JANS2N2221-Transistor Key Features
- High collector current capability: Supports up to 800mA, enabling effective switching and amplification in moderate power circuits.
- Wide voltage rating: Withstands collector-emitter voltages up to 40V, suitable for a variety of analog and digital applications.
- Military-grade reliability: JAN certification ensures robust operation under extreme temperature and environmental conditions.
- Metal TO-18 package: Provides superior thermal dissipation and mechanical protection for enhanced device longevity.
Typical Applications
- Signal amplification in control and instrumentation circuits where consistent gain and switching speed are critical.
- Low to medium power switching tasks in industrial automation and aerospace systems requiring high reliability.
- General-purpose transistor use in embedded systems for driving relays, LEDs, and other peripherals.
- Prototype and repair applications where a rugged, proven NPN transistor is preferred for circuit stability.
JANS2N2221-Transistor Advantages vs Typical Alternatives
This transistor offers superior reliability and ruggedness compared to standard commercial 2N2221 variants, primarily due to its JAN military-grade qualification and robust TO-18 metal package. It provides enhanced temperature tolerance and mechanical durability, ensuring consistent performance in critical industrial and aerospace environments. Its balanced combination of current handling, voltage rating, and gain makes it a dependable choice for engineers requiring precision and longevity.
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JANS2N2221-Transistor Brand Info
The JANS2N2221 is a military-qualified variant of the widely recognized 2N2221 transistor, originally developed under Joint Army-Navy (JAN) specifications to meet stringent defense and aerospace standards. Manufacturers producing this part adhere to rigorous quality control and screening processes to guarantee performance under harsh conditions. The TO-18 metal can package further distinguishes this device as a premium choice for applications demanding reliability beyond commercial-grade transistors. Its legacy continues as a trusted component in industrial electronics, sourced from reputable semiconductor manufacturers specializing in military and aerospace-grade components.
FAQ
What is the maximum collector current supported by this transistor?
The maximum collector current for this transistor is 800 milliamps (mA). This current rating allows it to handle moderate power switching and amplification tasks common in industrial and aerospace electronics.
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What package type does this transistor use and why is it important?
This device is housed in a TO-18 metal can package, which is significant because it offers excellent thermal dissipation and mechanical protection. This packaging enhances reliability, especially in demanding environmental conditions.
What temperature range can this transistor operate within?
The transistor is rated for operation between -65??C and +200??C, making it suitable for extreme temperature environments often encountered in military and aerospace applications.
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How does the JAN qualification affect the transistor’s reliability?
JAN
