NTAG203 vs. Ultralight EV1 (48 Byte)

These two chips, the NTAG203 and the Ultralight EV1 (48 Byte) are from different NFC chip families. The NTAG203, manufactured by NXP belonging to the NTAG family, and the Ultralight EV1 (48 Byte), also manufactured by NXP.

The NTAG203 was the first of the NTAG series of chips from NXP released in 2011. The previous generation to the current NTAG series of chips.

The NTAG203 is no longer in production and we very, very strongly recommend that you do not purchase any tags using this chip. They are either very old or non-genuine NXP chips.

The NXP MIFARE Ultralight® EV1 is a updated version of the very popular Ultralight chip from NXP. The original Ultralight chip dates back to 2001 and the product has been used for ticketing the world over. It’s a very simple, reliable and cost effective product. Unfortunately, there’s probably almost as many non-genuine MIFARE Ultralight chips as genuine ones. The EV1 update added an originality check feature to help counteract this.

There are two variants of the Ultralight EV1 with two memory capacities. The smaller chip has 48 bytes of usable memory (similar to the NTAG210 and NTAG210micro) and the larger has 128 bytes (similar to the NTAG212).

Both these chips have a strong ScanStrength and will work very well with mobile phones.

Key Features

Key Specifications

Phone compatibility

Typical Use Cases

User Features

	NTAG203	Ultralight EV1 (48 Byte)
Total memory (bytes)	168	80
User memory (bytes)	144	48
Max URL (chars)	136	40
UID (bytes)	7	7
ECC signature	-
32-bit password	-
UID ASCII mirror	-	-
Scan Counter	-	-
Counter ASCII mirror	-	-
Lockable

Technical Specifications

	NTAG203	Ultralight EV1 (48 Byte)
Chip thickness	120 µm	75 µm / 120 µm
NFC Forum	Type 2	Type 2
Operating Freq.	13.56Mhz	13.56Mhz
Data Trans. Rate	106 kbit/s	106 kbit/s
Input Capacitance	50pf	17pF / 50pF
Fast read	-
Data retention (years)	5	10
Write endurance (cycles)	10000	100000
Anticollision	-	-
Standard	ISO/IEC 14443 A	ISO/IEC 14443 A
Release date	2011	2013

Other popular comparisons

NTAG203 vs NTAG213

NTAG203 vs NTAG210µ

NTAG203 vs NTAG215

NTAG203 vs NTAG210

NTAG203 vs Ultralight EV1 (48 Byte)

NTAG203 vs NTAG212

NTAG203 vs NTAG216

NTAG203 vs NTAG203

NTAG203 vs ICODE SLIX

NTAG203 vs ICODE SLIX2

NTAG203 vs NTAG424

NTAG203 vs ICODE 3