Ferrite Clip On HEM3012

Code: N89AB

  • Clip-on ferrite ring HEM3012

Product details

Ferrite Clip On HEM3012

  • Clip-on ferrite ring HEM3012
  • Designed to cure electromagnetic and radio frequency interferences

A clip-on ferrite ring designed to cure electromagnetic & radio frequency interference at source. Always choose an internal diameter close to that of the cable or wind through several times. Always put ferrites at the noisy end of the cable.

Order Part Max Max Min Attenuation (Ω)
Code number diameter length hole dia 25 MHz 100MHz
N89AB HEM3012 13 25.5 2.4 93 158

My car camera interferes with radio reception. Would this ferrite clip help clear the loss of station. The radio works fine when the camera is off or running on battery only.

Asked by: Waldo
I would suspect the problem lies with the vehicle electrical system, or possibly the 12v power adaptor for the camera. I don't think a ferrite is going to he help in this instance.
Answered by: Les
Date published: 2016-11-29

The radio in my motorhome picks up a good range of stations without interference unless the reversing/ rear view camera is switched on. Then I get interference on all stations. Will a ferrite clip on the aerial lead going in to the radio help with this?

Asked by: JProsser
Unfortunately we are unable to guarantee full compatibility for this item.
Answered by: Dominic
Date published: 2016-09-09

What attenuation does this item provide? Your table shows attentaion in ohms but ohms is impedance! How many dB attenuation at what frequencies? What ferrite is it made from? It is less risky to buy elsewhere as you don't provide useful information!

Asked by: Mr T
Hi, you are correct attenuation should be rated in db, I have asked our content team to update all the Ferrites to the correct standard, this should be completed in the next few days.
Answered by: Russell
Date published: 2016-08-10

When I said what mix, what is the material mix? 31, 43 etc.? What are the characteristics at what frequencies?

Asked by: Martin
Apologies for the misunderstanding, I will request this information for you.
Answered by: Russell
Date published: 2015-10-12

What mix are these?

Asked by: Martin
These are sold singular per pack i.e one per pack. The picture shown represents all the types of this kind of Ferrite ring that we currently have in our stock inventory. Sorry for any inconvenience this has caused.
Answered by: Darren
Date published: 2017-05-03

To stop HID lamp ballast interference on the car radio, where would these be fitted?

Asked by: Barrie
You may need one on the radio or the ballast, but we would not be able to say as we have no experience fitting it to this kind of setup.
Answered by: Dominic
Date published: 2015-08-19

Would these help stop mobile phone noise being picked up on mic cables when recording? I have XLR cables - what size ferrite a would I require?

Asked by: Mr T
Sorry we cannot guarantee that this would not resolve this issue.
Answered by: PaulaC
Date published: 2015-07-17

hi there i am getting a lot of engine noise through my cb radio if i fit this product to the power lead or the antenna would this solve the problem
Asked by: Anonymous
This should certainly improve the situation.
Answered by: DH
Date published: 2017-01-27
  • y_2017, m_8, d_18, h_13CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_13
  • loc_en_GB, sid_N89AB, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_maplin-en_gb

Bulk Prices

Item code Item name Quantity Price
N89AB Ferrite Clip On HEM3012 (1+) £3.49

Why not tell us and our B2B sales team about your specific business needs and expectations?

At Maplin, we’re always looking for innovations and technology that can help your business work more efficiently.

With a dedicated business team and special services available only to business customers, you can access our electronics and technology solutions through our wide network of over 200 stores, our website with more than 20,000 products or though your personal account manager over the phone.

Working with organisations for nearly 30 years, Maplin offers a nationwide range of benefits to our business users:

  • 30 day EOM credit account
  • volume discount pricing
  • online and in-store use of account
  • one-to-one account management
  • bespoke product sourcing and branding
  • free delivery on orders over £10
  • scheduled and forward ordering service

Contact our business team on 

0333 400 9740 to open an account or discuss your business needs.

To receive your free copy of the Maplin Catalogue just call 0333 400 9740.

£3.49

  • Home Delivery
  • Click & Collect

Related Products
Highly secure KeeLoq code hopping protocol, RF decoder ...
Highly secure KeeLoq code hopping protocol, RF decoder IC’s, Can be used with AM or FM radio modules, Simple to use, stand alone operation, Achieves maximum range from RF modules, 1 - 4 switch options (15 states), Decoder digital and ...
3 digital I/O, Serial Data output, Connects directly ...
3 digital I/O, Serial Data output, Connects directly to RF Modules, Easy Enc / Dec Pairing Function, Minimal External Components Required, Performs all encoding/decoding of data for Reliable Operation., Achieves Maximum Range From RF Modules, Fast Activation / Deactivation Time, ...
5.0V regulator, Low quiescent current and low dropout ...
5.0V regulator, Low quiescent current and low dropout voltage, Extremely tight load and line regulation, Very low temperature coefficient, Needs only 1uF for stability, Use as regulator or reference, Stable with low ESR output capacitors, Current and thermal limitingThis device ...
A single vactrol for use in amplifiers or ...
A single vactrol for use in amplifiers or analogue synthesisers, Uses an LED and LDR to control the resistance in a circuit, 75 dB dynamic range and high dark resistance, Fast response time – typically 2.5 msWhat is a vactrol?A ...