RCA / MOTOROLA 2N4105 Npn Germanium Alloy Transistors 2N4106

( Brand: Rca / Motorola ), ( Manufacturer Part Number: 2N4105 ), ( Model: 2N4105 / 2N4106 )

Review RCA / MOTOROLA Matched Pair Pnp Npn Germanium Alloy Transistors

The 2N4105 and 2N4106 NPN (Normally PNP) germanium alloy transistors are a classic addition to any electronics enthusiast's toolkit, harking back to the early days of transistor technology. Manufactured by RCA and Motorola, these transistors maintain a rich legacy of reliability and versatility, making them an excellent choice for various applications.

The 2N4105 and 2N4106 transistors are built using germanium, a semi-conducting material with unique properties that allow for lower power consumption and operation at lower temperatures compared to their silicon counterparts. This makes them well-suited for applications requiring low power, such as vintage audio equipment, battery-powered devices, and low-voltage circuits.

The 2N4105 transistor boasts a maximum collector-emitter voltage of 35V and a maximum collector current of 0.5A, while the 2N4106 can handle up to 40V of collector-emitter voltage and 0.6A of collector current. Both transistors offer a base-emitter voltage of approximately 0.7V and a maximum power dissipation of 0.125W.

These transistors exhibit a high-frequency cutoff of around 10 MHz, making them suitable for audio frequency applications, such as pre-amplifiers, guitar effects, and vintage radio circuits. They also have a relatively low switching speed, which can be advantageous in applications where fast switching is not a priority and power consumption is a concern.

The 2N4105 and 2N4106 transistors are available in TO-92 and TO-92A packages, both of which are compact and easy to solder. The TO-92A package features lead pins that are spaced further apart, making it easier to work with in tight spaces.

In conclusion, the 2N4105 and 2N4106 transistors are essential components for any electronics hobbyist or engineer working with low-power, low-voltage, or vintage electronic projects. With their rich history, versatility, and reliable performance, these germanium transistors are a must-have addition to any toolbox.

1. Historical and Cultural Significance: These transistors were widely used in the early days of electronics, particularly in radios and audio amplifiers. They have a nostalgic appeal and are often used in hobbyist projects and vintage equipment restoration.

2. Lower Cost: Compared to modern silicon transistors, germanium transistors are generally less expensive, making them a cost-effective choice for certain applications.

3. Wide Bandwidth: Germanium transistors have a higher frequency response than silicon transistors, making them suitable for high-frequency applications such as radio receivers and oscillator circuits.

4. Linear Characteristics: Germanium transistors have a more linear voltage-current characteristic than silicon transistors, which can result in better audio quality and lower distortion in amplifier circuits.

1. Limited Availability: Due to their age and decreasing popularity, 2N4105 and 2N4106 transistors may be harder to find in stock, and their availability can be unpredictable.

2. Lower Power Handling: Compared to modern silicon transistors, germanium transistors have lower power handling capabilities, which can limit their use in high-power applications.

3. Sensitivity to Temperature: Germanium transistors are more sensitive to temperature changes than silicon transistors, which can affect their performance and reliability.

4. Lower Saturation Current: Germanium transistors have a lower saturation current than silicon transistors, which can limit their ability to drive current in certain circuits.

While 2N4105 and 2N4106 NPN germanium alloy transistors have some advantages, such as their historical significance, lower cost, wide bandwidth, and linear characteristics, they also have some disadvantages, such as limited availability, lower power handling, temperature sensitivity, and lower saturation current. If you are looking for a transistor for a specific application, it is essential to consider these factors and choose the best option based on your needs.

If you are interested in vintage electronics or hobbyist projects, 2N4105 and 2N4106 transistors can be a fun and interesting addition to your collection. However, if you are looking for a transistor for a critical application that requires high power handling or reliability, it is recommended to consider modern silicon transistors instead.

Details:

2n4105 2N4106 matched pair germanium transistors.

specifications voltageregula:

• brand: Rca / Motorola
• mpn: 2n4105
• model: 2n4105 / 2n4106

Payments voltageregula:

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• type: Calculated

Ratings:

1. Super fast shipping! Thanks! 10-27-17
2. thx 10-27-17
3. Great seller. Will buy from again. 10-28-17

Offer voltageregula:

• Started: October 27, 2017, 8:53 am
• Sold: 0
• quantity: 1
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• details: See Return Policy for more details.
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• policy: returns accepted
• paid by: Buyer
• time: 14 Days

General voltageregula:

• in stock: Yes
• condition: New
• business industrial > electrical test equipment > electronic components business industrial > voltage regulators electronic components

Seller voltageregula:

• zipcode: 74132
• city: Tulsa, Oklahoma

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