Datasheet

Page  2016/03/02--Version: 1
7.0 Explanation of Part No. System: 51'
The standard Part No. includes 14 digits with the following explanation:
7.1 1
st
~4
th
digits
This is to indicate the Chip Resistor.
Example: 0201, 0402,0603,0805,1206,1210,2010,1812,2512
7.2 5th~6th digits:
7.2.1 This is to indicate the wattage or power rating. To dieting the size and the numbers,
The following codes are used; and please refer to the following chart for detail:
W=Normal Size; S=Small Size; U= Ultra Small Size; Ⱦ1ȿ~ȾGȿto denotesȾ1ȿ~Ⱦ16ȿas
Hexadecimal:
1/16W~1W:
Wattage 1/32 3/4W 1/2 1/3 1/4 1/8 1/10 1/16 1/20W 1
Normal Size WH 07 W2 W3 W4 W8 WA WG WM 1W
Small Size / 07 S2 S3 S4 S8 SA SG / 1S
7.2.2 For power rating less or equal to 1 watt, the 5th digit will be the letters W or S to represent the
size required & the 6th digit will be a number or a letter code.
Example: WA=1/10W; S4=1/4W-S
7.3 The 7th digit is to denote the Resistance Tolerance. The following letter code is to be used for
indicating the standard Resistance Tolerance.
D=Ʋ0.5% F=Ʋ1% G=Ʋ2% J=Ʋ5% K= Ʋ10%
7.4 The 8th to 11th digits is to denote the Resistance Value.
7.4.1 For the standard resistance values of 5%&10% series, the 8th digit is Ⱦ0ȿ,the 9th & 10th
digits are to denote the significant figures of the resistance and the 11th digit is the number of zeros
following;
For the standard resistance values of 2% series in, the 8th digit to the 10th digits is to denote the
significant figures of the resistance and the 11th digit is the zeros following.
7.4.2 The following number s and the letter codes are to be used to indicate the number of zeros in the
11th digit:
0=10
0
1=10
1
2=10
2
3=10
3
4=10
4
5=10
5
6=10
6
J=10
-1
K=10
-2
L=10
-3
M=10
-4
7.4.3 The 12th, 13th & 14th digits.
The 12th digit is to denote the Packaging Type with the following codes:
C=Bulk in (Chip Product) T=Tape/Reel
7.4.4 The 13th digit is normally to indicate the Packing Quantity of Tape/Reel packaging types. The
following letter code is to be used for some packing quantities:
4=4000pcs 5=5000pcs C=10000pcs D=20000pcs E=15000pcs
Chip Product: BD=B/B-20000pcs TC=T/R-10000pcs
7.4.5 For some items, the 14th digit alone can use to denote special features of additional information
with the following codes:
E= For ȾEnvironmental Protection, Lead Free typeȿ.
S= Provided Specially.