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4 Key Membrane Switch Keypad 1x4 Matrix Keyboard for arduino Diy Kit

USD 0.85USD 0.87

4 Key Membrane Switch Keypad 1x4 Matrix Keyboard for arduino Diy Kit

Description

Purchase Notes

1. The two logistics of Yanwen Economic Air Mail and China Post Ordinary Small Packet Plus do not have tracking information, so there is no time limit. We recommend using China Post Registered Air Mail or AliExpress Standard Shipping.2. We do not accept refunds for minor damage (pin bending, slight screen abrasion,etc.)during the transit of the material, without affecting normal use. If you mind,please do not buy.3. Some products provide technical support, if you need help, please contact us, we will handle your message the first time.4. If you have any questions about the product, please contact us before you open a dispute. We will give you the most satisfactory answer.5. We provide each customer with good quality products, very favorable prices and the most sincere service. We hope to get your good feedback.Wish you a pleasant shopping!

Contact resistance of 500
Insulation resistance 100M
Key Operating Force 150-200N
Rebound time 1 (ms)
Life of 100 million (times)
Operating Temperature 60
1.The electronic characteristics:
Circuit Rating: 35V (DC), 100mA, 1W
Contact resistance: 10Ω ~ 500Ω
(Varies according to the lead lengths and different from those of the material used)
Insulation resistance: 100MΩ 100V
Dielectric Strength: 250VRms (50 ~ 60Hz 1min)
Electric shock jitter: <5ms
Life span: tactile type: ≥ one million times
2.The mechanical properties
Operating pressure: Touch feeling: 170 ~ 397g (6 ~ 14oz)
Switch travel: touch-type: 0.6 ~ 1.5mm
3.The environment parameters
Operating temperature: -40 to +80
Storage temperature: -40 to +80
Temperature: from 40,90% to 95%, 240 hours
Vibration: 20G, max. (10 ~~ 200Hz, the Mil-SLD-202 M204.Condition B)

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and submit the order.If you need more quantity,Pls contact us. If you mind the price,If some parts can not find out in my store,Pls contact us,we still have many parts don't published.

We will send thelatest version of product, the upgraded function. It may has different shape or color. If you can't agree, pls don't buy.

Please don't open dispute and leave any bad feedback, if you have any question, feel free to contact us,we will give you satisfactory answer. Hope you understand us, thank you in advance.

Your satisfaction and positive feedback is very important to us. Please leave positive feedback and 5 stars if you are satisfied with our items and services.

If you have any problems with our items or services, please feel free to contact us first before you leave negative feedback. We will do our best to solve any problems and provide you with the best customer service.

Specification

Model Number : 4 Key Membrane Switch Keypad

Origin : Mainland China

Brand Name : HESAI

Type : Voltage Regulator

Condition : New

(5 Pieces) SN74LS147N DIP-14
USD 1.76USD 1.85
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