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125kHz cards EM4200 with larger antenna for better reading
(Product ID: 1638)

Are you looking for identification badges with 125 kHz RFID chip? We offer high quality RFID cards with the very popular chip EM4200 and a larger antenna for top performance.

The EM4200 chip is read-only, it operates on a frequency of 125 kHz, and is made by chip manufacturer EM Microelectronic-Marin. It is the latest version and backward compatible with previous chips EM4100 and EM4102. It contains a read-only identification number, which is programmed with a laser during its manufacturing process and cannot be changed.

Our cards were custom-made and they contain a bigger, oval antenna which helps to get better performance than the usual smaller antenna. These cards work with standard 125 kHz readers and are delivering the longest reading distances. They are used as pre-payment cards for festivals, casinos, wellness, as gift cards, loyalty cards, time attendance cards, hotel cards, membership cards, key cards, etc.

You are welcome to buy white cards from stock or send us an inquiry for printed cards. Depending on the quantity and deadline, we will help you select the best option for printing.

If you need larger quantities send an email to info@rfidspecialist.eu or call +38641 884 124 and we will be happy to help you.

If you are an integrator or reseller, we offer special discounts.
Price/item: 0,79 EUR (with vat 0,96 EUR)
Status: In stock
Dispatching time: 1-3 days



Product ID: 1638


You can order from 1 piece onwards. Enter the desired quantity, and the price for the selected quantity will be displayed.
78,90 EUR

Total with vat:
96,26 EUR
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Do you need print or other specific requirements?
Send inquiry


Quantity Price/pcs
≥ 1 1,31 EUR
≥ 10 1,15 EUR
≥ 25 0,92 EUR
≥ 50 0,82 EUR
≥ 100 0,79 EUR
≥ 200 0,76 EUR
≥ 300 0,66 EUR
≥ 500 0,58 EUR
≥ 1000 0,54 EUR
≥ 2000 0,51 EUR


EM4200 125 kHz cards with a larger antenna for better reading are plastic cards with the dimensions of a standard credit card (86 x 54 x 0.85 mm) with the EM4200 125 kHz proximity chip, produced by chip manufacturer EM Microelectronic-Marin. This chip is a very popular read-only chip which operates on a frequency of 125 kHz and is used in countless applications for people, assets, and even animal identification purposes.

The EM4200 was designed to replace directly the EM Microelectronic-Marin Read-Only ICs EM4100/4102 and EM4005/4105. It works perfectly even with readers designed for its competitor’s 125 kHz chip TK4100, and achieves better performance on these readers, too.
The cards are bright white, without numeration or other printed elements. The card’s   top layer has a coating which allows the subsequent printing with all kinds of card printers (thermo transfer or thermo retransfer printers).

When printing background pictures or other larger artworks, we recommend using a thermal retransfer printer. For serialization with QR codes, barcodes, other numbering or personalization with names, you may use any kind of desktop card printers.

Option for printed cards with chip EM4200

When ordering 500 printed RFID cards or more, it is usually better and more cost effective to print the cards with offset printing technology during a manufacturing process. This kind of printing requires special equipment and is usually done by specialized card manufacturers. For the printing, we usually use digital printing with CMYK colors which we combine with silk screen printing when there is a need for Pantone colors or metallic effects (golden colors, silver, glitter, etc.).

The typical printed RFID card contains the following layers: 

1.    A clear protective layer with special coating for additional thermal print,
2.    A layer with front side artwork, 
3.    A layer with RFID chip and antenna,
4.    A layer with back side artwork, 
5.    and another clear protective layer with special coating for additional thermal print.

The quality of these layers defines the quality of the print on cards and the lifespan of the RFID chip.

If you need printed cards, please send us an inquiry with the desired card quantity and deadline.

Reading test for EM4200 125 kHz cards with a larger antenna  

The reading distance between the card and the reader is affected by many different factors, like the size of the antennas and quality of the chips, the interferences of metal, and electromagnetic signals, etc.

We tested the EM4200 125 kHz cards with different kinds of readers and measured the reading distances. This is not an official test and it was made to inform you what reading distances you may expect with your application.

Below are the distances we measured with our test:
ID  RFID reader  Reading distance
1378 125 kHz reader Syris RD200-LF 10 cm
1539 125 kHz RFID reader R80D 6 cm
1329 Promag PCR-330A-00 125 kHz RFID Card Reader 6 cm
1510 Promag PCR 300AU-02 125kHz USB Virtual COM HEX UID 5 cm

Technical specification

Manufacturer: EM Microelectronic-Marin
Chip: EM4200
Compatible with: EM4100, EM4102, TK4100
Frequency: 125 kHz
Reading distance: up to 9 cm (depending on reader)
Card dimensions: CR80 (85.60 x 53.98mm)
Thickness: 0.84 mm
Material: PVC
Printing options: offset print, thermo re-transfer, thermo transfer

If you need larger quantities send an email to info@rfidspecialist.eu or call +38641 884 124 and we will be happy to help you. 

If you are an integrator or reseller, we offer special discounts.

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