1. Ham, Amateur Radio Communication For Sale
  2. sku: 13086103518798623
  3. DOW KEY 77-133

DOW-KEY 77-133 Coaxial Relay Tnc Connectors P/n 12VDC

77-133 Dow-key Coaxial Relay P/n 12vdc Tnc F Connectors Lot Of 7

( Brand: Dow-key ), ( Manufacturer Part Number: 77-133 ), ( Compatible Brand: Universal ), ( Type: T/r Relay ), ( Band: Uhf ), ( Features: Tnc Connectors )

Review DOW KEY Coaxial Relay P/n 12vdc Tnc Connectors Lot Of

Dow-Key 77-133 Coaxial Relay with TNC Connectors (P/N 12VDC)

The Dow-Key 77-133 Coaxial Relay is a versatile and reliable solution for a wide range of applications, particularly in radio frequency (RF) and microwave systems. This product, identified by its P/N 12VDC, is a testament to Dow-Key's commitment to quality and innovation.

This coaxial relay features a 77-series design, known for its robustness and high-performance characteristics. It is operated by a 12VDC power supply, making it suitable for various power systems. The relay is designed to handle up to 133 watts of RF power, making it an ideal choice for high-power applications.

One of the standout features of the Dow-Key 77-133 Coaxial Relay is the inclusion of TNC (Threaded Neill-Concelman) connectors. These connectors provide a reliable and secure connection for coaxial cables, ensuring excellent signal transmission and minimal loss. The TNC connectors also allow for easy installation and disconnection, making this relay a convenient choice for various field and lab applications.

The Dow-Key 77-133 Coaxial Relay is built to withstand harsh environmental conditions, thanks to its durable construction. It features a rugged, corrosion-resistant housing that can withstand a wide range of temperatures and humidity levels. This makes it an ideal choice for outdoor use or in environments where moisture and other contaminants may be present.

In summary, the Dow-Key 77-133 Coaxial Relay with TNC Connectors (P/N 12VDC) is a high-performance, reliable, and versatile solution for RF and microwave applications. Its robust construction, high power handling capabilities, and easy-to-use TNC connectors make it a valuable asset in various fields, from telecommunications to military and aerospace.

Product: Dow-Key 77-133 Coaxial Relay (TNC Connectors) - 12VDC

Pros:

1. High-quality construction: Dow-Key is known for its durable and reliable products, making this coaxial relay a suitable choice for various applications.

2. TNC connectors: These threaded, twist-on connectors provide a secure and weather-resistant connection, which is beneficial in outdoor or harsh environments.

3. 12VDC operation: The relay operates on a standard 12VDC power source, making it compatible with a wide range of power supplies.

4. Compact size: The relay is compact, which allows for easy integration into various systems.

Cons:

1. Higher price point: Compared to some other relays on the market, this Dow-Key model may have a higher price tag, which could be a concern for budget-conscious users.

2. Limited current handling: With a maximum contact current of 1A, this relay may not be suitable for high-power applications requiring a higher current rating.

3. No built-in diode: The relay does not have a built-in diode to protect against inductive loads, which might necessitate the use of an external diode in certain applications.

Conclusion:

The Dow-Key 77-133 coaxial relay with TNC connectors is a reliable and durable choice for medium-power applications, particularly those requiring a weather-resistant connection. However, its higher price point and limited current handling may make it less appealing for budget-conscious users or high-power applications. It is recommended to carefully evaluate your specific application requirements before making a purchase decision. If current handling or price is a major concern, alternative options may be worth considering.

Details:

Coaxial RF relay, Dow Key PN 77-103, Frequency range 50 - 1000 MHz, Power requirements 12 VDC, Connector type TNC F, Lot of 7.

part #: 77133 prices

  • $39.99-$75.00

specifications hamamateuradio:

  • brand: Dow-key
  • mpn: 77-133
  • compatible brand: Universal
  • type: T/r Relay
  • band: Uhf
  • features: Tnc Connectors

general hamamateuradio:

  • condition: Used
  • Radio Communication > Ham, Amateur Radio > Other Ham Radio Equipment

seller hamamateuradio:

  • # reviews: 417
  • rating: 100.0%
  • city: Casselberry, Florida

payments hamamateuradio:

  • wallet: Google-pay
  • credit card: Diners-club
  • other

returns hamamateuradio:

  • policy: No Returns

shipping hamamateuradio:

  • cost: $12.00
  • type: Fixed
  • service: USPS Ground Advantage
  • transit: 5-10 Days
  • carrier: USPS
  • class: Standard

offer hamamateuradio:

  • availability: In Stock
  • quantity: 1
  • started: December 3, 2025
  • sold: 0
  • options: Ship-to-home
compatible brand: universal, type: t/r relay, band: uhf, features: tnc connectors,
category: electronics > radio communication > ham, amateur radio > ham radio equipment, sku: 13086103518798623,
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5 offers $39.99–$75.00 USD
  • Used. Offer #1 priced at $69.99 + $18.15 shipping estimate = $88.14* total. +$18.15 shipping
  • Used. Offer #2 priced at $75.00 + $0.00 shipping estimate = $75.00* total. FREE SHIPPING
  • Used. Offer #3 priced at $39.99 + $6.00 shipping estimate = $45.99* total. +$6.00 shipping
  • Used. Offer #4 priced at $35.00 + $6.00 shipping estimate = $41.00* total. +$6.00 shipping
  • Used. Offer #5 priced at $17.98 + $7.50 shipping estimate = $25.48* total. +$7.50 shipping

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