DOW 77-2202 Relay Key Rf Dow-key

( Brand: Dow ), ( Part Type: Key )

Review DOW Relay key Rf

The Dow-Key Relay 77-2202 is a high-quality, solid-state, normally-open, optically-isolated, and remote-controlled relay. This relay is designed for use in applications requiring reliable and secure control of electrical loads in industrial, commercial, and residential environments.

The Dow-Key 77-2202 relay operates on a 12VDC to 24VDC power supply and has a maximum contact rating of 10A at 250VAC or 30VDC. The relay features a high-frequency RF signal input, which allows for remote control of the relay without the need for physical wiring. The RF input operates on a frequency of 400-460MHz, ensuring clear and reliable communication with the remote control device.

The relay is built with Dow-Key's proprietary Opto-Isolation technology, which provides electrical isolation between the RF input and the mechanical contacts, ensuring that the relay is immune to electrical noise and interference. This technology also provides increased safety and reliability, as it prevents electrical shock and reduces the risk of damage to the relay or the controlled load.

The Dow-Key 77-2202 relay is housed in a rugged and durable plastic enclosure, which is resistant to moisture, dust, and other environmental factors. The enclosure is also designed to withstand vibration and shock, making it suitable for use in harsh industrial and commercial environments.

The relay features a LED indicator light that illuminates when the relay is activated, providing visual feedback to the user. The LED can be easily configured to operate in either a normally-on or normally-off mode, depending on the application requirements.

In summary, the Dow-Key Relay 77-2202 is a versatile and reliable optically-isolated relay that is ideal for use in applications requiring remote control, electrical isolation, and secure control of electrical loads. Its high-quality construction, high-frequency RF input, and durable enclosure make it a reliable choice for a wide range of industrial, commercial, and residential applications.

1. High reliability: This relay is known for its high reliability and durability, making it a reliable choice for various applications.

2. Wide operating temperature range: The relay can operate in a wide temperature range, from -55 C to 125 C, which is ideal for use in harsh environments.

3. Low power consumption: The relay has a low power consumption, which can help save energy and reduce operating costs.

4. Easy to install: The relay is easy to install and has a compact size, which makes it suitable for use in tight spaces.

5. High isolation voltage: The relay has a high isolation voltage, which ensures safe operation in high voltage applications.

1. High cost: Compared to other relays, the Dow-Key RF relay can be expensive, which may be a limiting factor for some buyers.

2. Limited availability: The relay may not be readily available in some regions, which could lead to delays in delivery.

3. Complex operation: The relay may require some technical knowledge to operate effectively, which could be a challenge for some users.

The Relay 77-2202 Dow-Key RF is a high-quality relay that is well-suited for use in harsh environments and high voltage applications. Its high reliability, wide operating temperature range, low power consumption, and compact size make it an attractive option for many users. However, its high cost and limited availability may be a deterrent for some buyers. Ultimately, the decision to purchase this relay should be based on the specific needs and budget of the user.

If cost is not a limiting factor, and the user requires a reliable and durable relay for use in harsh environments or high voltage applications, then the Relay 77-2202 Dow-Key RF is a recommended option. However, if cost is a concern, the user may want to consider other options that offer similar features at a lower price point.

Details:

This is a Dow key PDT relay, model , made for switching rf. The gold plated relay contacts are within a sealed cavity block. The relay specifications show isolation of greater than 30 db and insertion loss of less than db at 1 GHz. It operates on 12 volts dc.

The relay will switch 100 watts at 100 khz, and 50 watts at 1 GHz. I purchased three of these new relays and then placed them my amateur radio closet for many years. But I no longer plan to be building any vhf uhf equipment. The 50 ohm NBC connectors are silver plated.

It is new, but unboxed.

part #: 77-2202 price

• $75.00

Offer:

• # bids: 0
• quantity: 1
• best offer: false
• # Sold: 0
• Started: March 3, 2015, 12:50 pm
• min. bid: $20.00

Shipping:

• type: Calculated
• handling: 3 days
• cost: $5.95

Seller:

• zipcode: 06807
• city: Cos Cob, Connecticut

Payments:

• PayPal

Returns:

• type: Money Back
• time: 14 Days
• paid by: Buyer
• policy: returns accepted

General:

• Consumer Electronics > Radio Communication > Ham, Amateur Radio > Other
• condition: New
• in stock: Yes

Ratings:

1. excellent seller 01-18-15
2. Tank's 01-31-15
3. Great Product 12-10-14
4. Quick response and fast payment. Perfect! THANKS!! 12-15-14
5. great seller,honest person very good 07-29-14

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