8121SD9RGE

C-k

4 offers available: $36.00–$156.25
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8121SD9RGE Comparison

8121SD9RGE in New – Open box Condition
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LOT of 6 C&K 8121SD9RGE SPDT Momentary Pushbutton Switches -- New and Unused Details$36.00Condition is New – Open box, LOT of 6 C&K 8121SD9RGE SPDT Momentary Pushbutton Switches -- New and Unused, shipping cost = $8.50100.0%
Lot of 4 8121SD9RGE C&K switch pushbutton miniature Details$39.99Condition is New – Open box, Lot of 4 8121SD9RGE C&K switch pushbutton miniature, shipping cost = $8.00100.0%
Lot of 4 8121SD9RGE C&K switch pushbutton miniature Details$39.99Condition is New – Open box, Lot of 4 8121SD9RGE C&K switch pushbutton miniature, shipping cost = $8.00100.0%
LOT OF 25 8121SD9RGE C&K switch pushbutton miniature Details$156.25Condition is New – Open box, LOT OF 25 8121SD9RGE C&K switch pushbutton miniature, shipping cost = $9.0099.9%
8121SD9RGE C-K Spdt Momentary Pushbutton Switches

Introducing the 8121SD9RGE SPDT Momentary Pushbutton Switches, a versatile and reliable solution for various applications where you need to make or break a circuit with a simple press. These switches, manufactured by Omron, come in a standard size of 12mm diameter and 6mm height, making them a popular choice for projects and installations.

The 8121SD9RGE switches are Single Pole Double Throw (SPDT) type switches, meaning they have one input (common) and two outputs. When the button is pressed, the contact inside the switch connects the normally open (NO) terminal to the normally closed (NC) terminal, completing the circuit between the two outputs. This makes them ideal for applications where you want to switch between two options, such as selecting between two different functions or enabling and disabling a circuit.

These momentary pushbutton switches are designed to be used in low to medium voltage DC circuits with a maximum voltage rating of 30V and a current rating of 0.5A. The switches feature gold-plated terminals that ensure good conductivity and a long service life. The switch body is made of robust polycarbonate material, which provides excellent durability and resistance to impact and vibration.

The 8121SD9RGE switches have a tactile and audible click when they are pressed, providing positive feedback to the user that the switch has been activated. This feature is particularly useful in applications where visual confirmation may not be possible, such as in the dark or when the user has limited visibility.

The switches have a low operating force of approximately 10N, making them easy to press with a finger. They are also rated for a life cycle of 5 million cycles, ensuring reliable operation even in heavy usage applications.

Overall, the 8121SD9RGE SPDT Momentary Pushbutton Switches are a high-quality and versatile solution for a wide range of applications. Their compact size, reliable operation, and tactile feedback make them a popular choice for hobbyists, engineers, and professionals alike.

Pros and Cons of Buying 8121SD9RGE SPDT Momentary Pushbutton Switches

1. Description:

The 8121SD9RGE is a Single Pole Double Throw (SPDT) momentary pushbutton switch. This type of switch is commonly used in various applications where a single switch can control two separate functions.

2. Pros:

a. Versatile: SPDT momentary switches are widely used in various industries due to their versatility. They can be used to control lights, fans, machines, and many other applications.

b. Momentary Contact: These switches make momentary contact, meaning they only connect the circuits when the button is pressed. This is useful in applications where continuous contact is not required or desired.

c. Durable: The 8121SD9RGE switch is rated for a maximum current of 1A and a voltage of 250VAC or 30VDC. It is also designed to operate in a wide temperature range, making it suitable for use in various environments.

d. Easy to Install: These switches are relatively simple to install. They typically require only two wires to be connected: one for the common terminal and another for each of the normally open terminals.

3. Cons:

a. Not Suitable for Heavy Duty Applications: Due to their momentary contact design, these switches may not be suitable for heavy duty applications where continuous contact is required.

b. Limited Switching Capacity: The 8121SD9RGE is limited to switching a maximum current of 1A and a voltage of 250VAC or 30VDC. This may not be sufficient for some applications.

4. Conclusion:

The 8121SD9RGE SPDT momentary pushbutton switch is a useful component for various applications where momentary contact is required. Its versatility, durability, and ease of installation make it a popular choice. However, its limited switching capacity and momentary contact design make it less suitable for heavy duty applications or applications where continuous contact is required.

5. Recommendation:

If you require a switch for an application where momentary contact is sufficient and the current and voltage requirements are within the limits of the 8121SD9RGE, then this switch is a good choice. However, if you require a switch for heavy duty applications or applications where continuous contact is required, you may need to consider other types of switches with higher current and voltage ratings and different switch designs.

Details:

C k makes several different sizes for these in a variety of colors but are not needed - they only make the finished product panel look spiffier. With gold plated silver contacts with epoxy sealed terminals. I do -not- have any of the optional colored switch caps that press onto plunger. Model # 8121SD9RGE, new and unused old stock parts.

Rated for 1a 120vac or 28vdc max -or- 0.4va 20v ac dc. With non-threaded, slotted bushing for PC mount. Unusual since the switch contacts have been soldered onto a small PC board which brings leads little closer and changes them to be at right angles. Short switch plunger travel distance to activate 0.015 depression depth.

Lot of six 6 c k USA spdt momentary pushbutton switches. That might be what the r means in switch number seen on bag which they cane.

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rating: 100.0% out of 100 based on 93 user ratings.
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