EM4550 Card

Contactless EM4550 Card

EM4550 Card is working under low frequency 125Khz. EM4550 (Em-marine) card contains 1K-Bit of read/write memory which can be configured by the user. EM4550 Card is a great solution for access control, pre-payment system, ticketing system, loyalty program, time attendance system and staff identification.

The  EM4450/4550 is a CMOS integrated circuit intended for using in electronic Read/Write RF Transponders. The difference between EM4450 and EM4550 is that EM4550 are bumped and has megapaded for the two coils. The chip contains 1 KBit of EEPROM which can be configured by the user, allowing a write inhibited area, a read protected area, and area output continuously at power on.

We manufacture blank EM4550 cards and pre-printed cards.

EM4550 Description:

– Chip: EM4550
– Function: Read/Write
– Memory Size: 64 bit read only Serial Number, 1024bit user EEPROM
– Frequency: 125KHz
– Protocol: ISO/IEC 11784/85 Compatible
– RF Protocol: N/A
– Anti-Collision: Yes

EM4550 Card Key Features:

– Card Dimension: 86 x 54mm or customized
– Thickness: 0.84~0.86mm
– Materials: PVC, PET, PETG etc for optional
– Surface: Lamination (gloss/mate)
– Working Frequency: 125KHz
– Reading Distance: 6cm
– Data Storage Time: Minimum 10 years
– Operating Temperature: -20 to +60°C
– Storage Temperature: -20 to +65°C
– Package: 250pcs / box, 5000pcs / carton

Target Application

– Ticketing
– Automotive Immobilizer with Rolling Code
– High Security Hands Free Access Control
– Industrial Automation with Portable Database
– Manufacturing Automation
– Pre-Payment Devices


– Logo/Graphics/Photo
– Serial Number
– DOD Number
– Barcode Printing
– Overlay Foil
– Signature Panel
– Name Personalization
– Photo Personalization
– LoCo300
– HiCo2750
– Magstripe Encoding
– Hologram
– Security Printing
– Chip Encoding



For further details, email Marketing@huayuansh.com

HUAYUAN 125khz EM4550 Card Datasheet
Contactless EM4550 Card
Contactless EM4550 Card
Contactless EM4550 Card
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