Mar.26,2024 V.5 www. uni-royal.cn

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Metal Glaze Film Fixed Resistors

1. Scope

1.1 This specification for approve relates Metal Glaze Film Fixed Resistors manufactured by UNI-ROYAL.

1.2 Provide high stable performance against environment conditions & overload voltage

1.3 Can withstand High Surge Voltage

1.4 Wide resistance range & low TCR

1.5 VDE items available(File NO:40011056)

1.6 UL items available（File NO:E244546）

1.7 Compliant with RoHS directive.

1.8 Halogen free requirement.

2. Part No. System

The standard Part No. includes 14 digits with the following explanation:

2.1 Coated type, the 1

to 3

digits are to indicate the product type and 4

digit is the special feature.

Example: MGR0= Metal Glaze film fixed Resistors;

2.2 5

digits:

2.2.1 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; “1”~“G”to denotes“1”~“16”as Hexadecimal:

1/16W~1/2W (＜1W )

Wattage

1/2

1/4

Normal Size

Small Size

1W~16W (≧1W )

Wattage

Normal Size

Small Size

Ultra Small Size

2.2.2 For power rating less than 1 watt, the 5

digit will be the letters W, S or U to represent the size required & the 6

digit will be a number or a

letter code.

Example: W2=1/2W; S2=1/2W-S.

2.2.3 For power of 1 watt to 16 watt, the 5

digit will be a number or a letter code and the 6

digit will be the letters of W, S or U.

Example: 1W=1W; 3U=3W-SS

2.3 The 7

digit is to denote the Resistance Tolerance. The following letter code is to be used for indicating the standard Resistance Tolerance.

F=±1% G=±2% J=±5%

2.4 The 8

to 11

digits is to denote the Resistance Value.

2.4.1 For the standard resistance values of E-24 series, the 8

digit is “0”,the 9

& 10

digits are to denote the significant figures of the resistance

and the 11

digit is the number of zeros following;

For the standard resistance values of E-96 series, the 8

digit to the 10

digits is to denote the significant figures of the resistance and the

digit is the 11

digit is the zeros following.

2.4.2 The following number s and the letter codes are to be used to indicate the number of zeros in the 11

digit:

0=10

1=10

2=10

3=10

4=10

5=10

6=10

J=10

-1

K=10

-2

L=10

-3

M=10

-4

2.4.3 The 12

, 13

& 14

digits.The 12

digit is to denote the Packaging Type with the following codes:

A=Tape/Box (Ammo pack) B=Bulk/Box

T=Tape/Reel P=Tape/Box of PT-26 products

2.4.4 The 13

digit is normally to indicate the Packing Quantity of Tape/Box & Tape/Reel packaging types. The following letter code is to be used

for some packing quantities:

A=500pcs B=2500pcs 1=1,000pcs 2=2,000pcs 5=5,000pcs

2.4.5 For the FORMED type products, the 13

& 14

digits are used to denote the forming types of the product with the following letter codes:

MF=M-type with flattened lead wire F0= F-type

MK= M-type with kinked lead wire F1= F1-type

ML= M-type with normal lead wire F2= F2-type

MC= M-type with bending lead wire F3= F3-type

2.4.6 For some items, the 14

digit alone can use to denote special features of additional information with the following codes:

0=NIL P=Panasert type 1=Avisert type 1 2=Avisert type 2

3=Avisert type 3 8=PT-58mm 9=PT-64mm 7=Lead wire(H)38mm

A=PT-83mm C=PT-73mm D=PT-71mm