2n3735 Transistor Overview Specs Selection And Applications - Japan

1 - Introduction

Transistors are fundamental and essential components in electronic circuits, widely used for signal amplification and switching functions.

The 2N3735 is a classic NPN silicon transistor known for its stable performance, good linear characteristics, and high-temperature tolerance.

It is commonly used in industrial control systems, audio amplifiers, and educational electronics.

This article provides a comprehensive overview of the 2N3735's key features, selection guidelines, and practical application scenarios to help engineers and buyers better understand its value.

2 - Key Specifications

Parameter Specification

Transistor Type NPN

Collector-Emitter Voltage (VCEO) 60V

Collector Current (IC) 800 mA

Power Dissipation (PD) 800 mW

DC Current Gain (hFE) 20 to 120

Package Type TO-39 (metal can)

Operating Temperature -65°C to +200°C Key Advantages: Rugged metal-can package with strong EMI shielding Stable operation across a wide temperature range Suitable for mid-power amplification tasks 3 - Selection Guidelines

When selecting the 2N3735 transistor for a project, consider the following: Electrical Matching: Ensure the voltage and current ratings are compatible with the application.

Thermal Considerations: For mid-power use, proper heat dissipation should be designed.

Frequency Requirements: Best suited for low to medium-frequency circuits, not ideal for RF.

Package Compatibility: TO-39 is a through-hole package, ideal for traditional PCBs and prototypes.

4 - Typical Applications

Audio Preamplifiers

Used in signal preamplification stages with stable and low-distortion performance.

Relay Drivers

Acts as a switching element to drive low-power relays reliably.

Educational Lab Kits

A staple in electronics education for transistor analysis and practical training.

General Control Circuits

Used in sensor signal conditioning and control logic blocks.

5 - Comparative Analysis

Model Type VCE IC Package Notes

2N3735 NPN 60V 800 mA TO-39 Mid-power, durable design

2N2222 NPN 40V 800 mA TO-18 Compact, lower power use

2N3053 NPN 70V 700 mA TO-39 Higher voltage, higher gain 6 - Frequently Asked Questions (FAQ)

Q: Is the 2N3735 suitable for high-frequency circuits?

A: No, it performs best in low- to mid-frequency applications like audio and control signals.

Q: Is there an SMD version of the 2N3735?

A: Currently, the 2N3735 is mainly available in TO-39; for SMD applications, consider alternative models.

Q: Can it be replaced with a 2N2222?

A: In some cases, yes—but check for compatibility in voltage, current, and package type before substitution.

7 - Market Outlook & Future Trends

While surface-mount devices (SMDs) are becoming the mainstream in modern electronics, traditional TO-39 packaged transistors like the 2N3735 remain highly relevant in environments requiring mechanical durability, heat tolerance, and repairability.

These include industrial systems, military-grade equipment, and education sectors, where long-term reliability is essential.

8 - Conclusion

The 2N3735 NPN silicon transistor stands out for its balanced performance, rugged package, and broad compatibility across various applications.

Whether you're working on circuit design, product maintenance, or educational projects, the 2N3735 is a dependable and time-tested choice.

Company Contact:

• Posted By: xecor

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• Address: Room1039, 2 Chome-7-4 Aomi, Koto City, Tokyo , Japan

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