RADIO SHACK / ARCHER 276-133 Opto Coupler Darlington Til 119/4N31

( Brand: Radio Shack / Archer ), ( Manufacturer Part Number: 276-133 ), ( Model: 119/4N31 )

Review RADIO SHACK / ARCHER Opto Coupler Darlington Output Til 119/4n31 Qty

The Radio Archer 276-133 is an Opto-Isolated Darlington Transistor Array, specifically the 1N4118/4N31 type. This opto-isolated Darlington transistor array is an essential component for designing various electrical circuits, particularly those requiring galvanic isolation between input and output stages.

The Radio Archer 276-133 comprises eight opto-isolated Darlington pairs. Each Darlington configurations combines the input optocoupler and the Darlington transistors in a single compact package. The use of optocouplers guarantees electrical insulation between the input and the output, which is crucial when working with voltage or current levels that cannot be connected directly, or when galvanic isolation is required due to safety reasons.

This opto-isolated Darlington array can provide an output current up to 1 A (600 mA maximum continuous), making it suitable for low to medium power applications. The optocoupler's operating voltage ranges from a minimum of 12V to a maximum of 40V. For accurate and efficient functionality, this opto-isolated Darlington array has a built-in LED driver with a minimum forward voltage drop of 1.65V. Moreover, it features a low on-resistance (Ron) of approximately 85 Ohms, which contributes to minimal power loss.

The eight channels in the Radio Archer 276-133 share a common base, allowing them to respond synchronously. This opto-isolated Darlington transistor array comes in a compact DIP-24 housing, measuring just 21.4 mm x 13.8 mm, ensuring ease of integration into a wide variety of electronic designs. The connector style for this product is a 0.1" (2.54 mm) pitch, making standard breadboard use straightforward.

This versatile component is commonly used in numerous applications, including voltage sensing, current switching, valve control, motor control, and electric power conditioning. The Radio Archer 276-133 Opto-Isolated Darlington Transistor Array is known for its robustness and long-lasting performance, making it an indispensable tool for professional electronics designers and hobbyists alike.

Pros and Cons of buying a Radio Archer 276-133 Opto Coupler Darlington Transistor Array (119/4N31)

1. **Understanding the Component**: The Radio Archer 276-133 is an Opto Coupler Darlington Transistor Array, specifically modeled as 119/4N31. It is an optical-isolated amplifier that provides galvanic isolation for electrical circuits while allowing communication between them.

A. Opto-isolation: The primary advantage is the built-in opto-isolation feature, which ensures that galvanic isolation is maintained between the input and output circuits, eliminating the chance of electrical noise or interference from affecting the signals passing through the component.

B. Darlington Transistor Array: The Darlington configuration of transistors in the component provides a larger current gain and allows it to handle higher input currents compared to a single transistor.

C. Solid-state design: This opto coupler is a solid-state component, meaning it does not have any moving parts that can wear out or get damaged, making it more robust and reliable compared to mechanical relays or other traditional isolation methods.

D. Wide operating temperature range: The Radio Archer 276-133/119/4N31 can operate effectively within a wide temperature range, making it suitable for various applications where temperature conditions may vary.

A. Size and Cost: Opto isolators are generally larger and costlier than their non-isolated variants due to the additional optical components and the requirement for more advanced manufacturing processes.

B. Limited current handling capacity: Although these components can handle higher currents than single transistors due to the Darlington configuration, their current handling capacity is still limited when compared to discrete power transistors.

C. Complex circuit design: Implementing opto isolators in a circuit can be more complex compared to non-isolated components, as there are additional design considerations for the optical components and power supply requirements.

The Radio Archer 276-133/119/4N31 Opto Coupler Darlington Transistor Array offers galvanic isolation, higher current gain, and a solid-state design. However, it comes with a larger size, higher cost, and potential complexity in designing around its optical components.

When deciding whether to buy this component, consider the importance of galvanic isolation in your application and the size, cost, and complexity constrains for your project. If isolation is crucial to your design, the benefits of this component may outweigh the cons, making it a valuable investment. But if your project requirements do not need isolation or can be met with a less-complex, lower-cost solution, it might not be worth the investment.

Details:

This listing is for: 2, New Old Stock, Vintage, Radio Shack Archer, Part #: 276-133, OPTO Coupler, Darlington Output, TIL 119/4N31, Refer to pictures. Bin: 6, OPTO Coupler.

part #: 276133 prices

• $7.99-$16.99

specifications vintaelec:

• brand: Radio Shack / Archer
• mpn: 276-133
• model: 119/4n31

general vintaelec:

• condition: New
• Consumer Electronics > Vintage Electronics > Other Vintage Electronics

offer vintaelec:

• options: Ship-to-home
• sold: 0
• quantity: 4
• availability: In Stock
• started: February 8, 2025

payments vintaelec:

• other
• wallet: Paypal
• credit card: Diners-club

returns vintaelec:

• time: 30 Days
• paid by: Buyer
• method: Money back
• policy: Returns Accepted

seller vintaelec:

• rating: 100.0%
• city: Kearney, Missouri
• # reviews: 1810

shipping vintaelec:

• service: Standard
• class: Standard
• cost: $0.00
• type: Fixed
• transit: 5-12 Days

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