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5V SPST Sealed Reed Relay

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Quoting product code: JH12N


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About this product


  • A single pole NO contact relays
  • 5V coil version
  • Switch up to 10VA

Product overview

• A single pole NO contact relays
• 5V coil version
• Switch up to 10VA
• High resistance coil ideal for direct drive logic 74 ICs and logic buffers

Rated 5 out of 5 by from Just what I wanted and works well I've sourced components from Maplins before and always been very pleased hence my purchase this time.
Date published: 2018-01-03
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Operating Specifications

Maximum Current:


Operating Time:


Release Time:


Maximum Switching Power:


Switching Voltage:


Coil Temperature Rise:

30 °C°C

Contact Resistance:

150 mΩmΩ

Mechanical Life:


Dimensions & Weight







Can you supply a drawing of the pins showing dimensions please

Asked by: peterc47
I have sent a data sheet to the email address provided.
Answered by: Dominic
Date published: 2017-01-27

Is there a wiring diagram for the 5v SPST

Asked by: ch200
Yes we have, I have emailed you a copy, if anyone else would like a copy please request this from
Answered by: Russell
Date published: 2015-07-17

Do these relays require a diode to prevent induced back emfs from damaging the driving chip, be it 74 series or a 555? Thanks
Asked by: JohnR-K
It would be a good idea to install a diode yes.
Answered by: RW
Date published: 2015-07-17

Will the Sealed Reed Relay work when connected to the outputs of a 40 seris IC, such as the outputs of a 4017B decimal counter.
Asked by: N/A
Yes it will.
Answered by: LC
Date published: 2015-07-17

Will this reed relay operate from a voltage less than 5V e.g. 2.4V?
Asked by: david davies
No sorry this product does not support that.
Answered by: DH
Date published: 2015-07-17
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