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160x100mm SRPB Pre-Sensitised Single Sided PCB Board

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Quoting product code: JP56L

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About this product

Overview

Product overview

• Single sided copper clad SRBP board coated with a positive photo-resist • Suitable for use with our UV exposure box• Covered with light-proof protective film, which should not be removed until the board is used

The PCB should be exposed using our UV exposure box and a circuit overlay transparency. Exposure time will be from 8 to 15 minutes. Mix together 0.5 litres approximately with one teaspoonful of sodium hydroxide (available from most chemists) and pour into a tray (CH38R). Gently rock the exposed PCB in the tray until the unwanted photo resist is dissolved away. Etch the board in a bath of ferric chloride and after rinsing, expose the PCB in the UV box for a further 10 minutes. Wash off all the remaining etch resist in a tray of sodium hydroxide solution.

Rated 1 out of 5 by from Not good Tried a couple of these boards both with very poor results. Firstly some of the adhesive from the protective film can get left behind - this adhesive will act as an etch resist! Also the copper layer seems to be very inconsistent, i.e. much thicker in some places. The result is the etchant is starting to eat into the tracks you want to keep whilst big areas of unwanted copper remain. Possibly a just dodgy batch of boards I suppose?
Date published: 2014-03-27
Rated 1 out of 5 by from Pre-sensitised SRBP The quality of the applied photo resist was very poor, meaning I could not use this board to develop a pcb. Absolute rubbish. I would not buy anything like this off Maplin again.
Date published: 2014-05-04
Rated 4 out of 5 by from Very Good - Works well but needs experienced hands I have used both the SRBP and Fibreglass in this range of boards with varying results. Firstly the boards black UV protecting film should be warmed first on a radiator or with a hot air rework tool and removed slow and consistently. The photoresist is thin I agree but that's not such a bad thing as it gives sharper edges. Over exposure is every PCB makers Achilles heel and its vital to get it spot on with these boards. I found rings that almost looked like water spots in the resist which is a concern however they etch well with a professional etch tank. If your using just Ferric Chloride without heat or bubbles then your going to get varied results. In summary, the way forward for Maplin is to talk to the manufacturer and wise them up to the resist. See my image of a board I made.
Date published: 2015-06-29
Rated 1 out of 5 by from Wish I read these comments before buying! I used the maplin FA60 photoresist PCB and it worked very well, however I tried to use this JP56 board afterwards and it failed miserably! The black plastic cover left marks on the photoresist, the photoresist itself just rubbed off as I tried to dry the developer off before putting it into acid (may have needed longer exposure compared to the FA60 board) Overall waste of time and a waste of money
Date published: 2015-03-18
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Specification

Single-sided SRBP: Order Code:
160 x 100mm JP56L

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