No TRM-120S006F
date 2007/05/24
TA-I
Thick Film Chip Resistors
(Lead-Free for RM12 Series )
page 5/11
TA-I TECHNOLOGY CO., LTD
Note* : RCWV : Rated continuous working voltage .
7. Marking :
7.1 ±2% & ±5%(E24)
Resistance value is expressed by 3 digits, the first two digits represent the significant figures of
nominal resistance value inΩ, and the third digit represents exponent for base of 10.
E.G. :, 472 = 47×102 = 4700Ω = 4.7KΩ
7.2 ±1% (E96 )
Resistance value is expressed by 4 digits or 3digits , the first three digits represent the significant
figures of nominal resistance value inΩ, and the fourth digit represents exponent for base of 10.
E.G. : 4701 = 470×101 = 4700Ω = 4.7K
7.3 ±1%( E96/3digital )
The resistance value by 3 digits is requirement for customer.
Whisker
SONY
SS-00254-8
Component , Lead-Free Soldering part 8 :
Solder Heat Resistance Test for SMD. Lead-
Free Soldering “
Temp. Cycles :
-35 ± 5℃ / 125 ± 5℃ , Keep 7 min
Testing duration : 500±4 hours
Temp. Humidity Chambers:
Temperature : 85℃
Humidity : 85% RH
Testing duration : 500±4 hours .
Whisker formation :
50 um or less .
Resistance to Solder Heat SONY
SS-00254-5
Component , Lead-Free Soldering part 5 :
Solder Heat Resistance Test for SMD. Lead-
Free Soldering “
Flow Solder :
Pre – heat : 100 to 105 ℃ 30±5 sec
Temperature : 260±3℃ 10 +1/ -0 sec
The entire sample shall be dipped in solder.
The specimen shall be stored at standard
atmospheric conditions for 1 hour .
Iron Solder :
Bit temperature : 350 ±10℃
Application time of soldering iron : 3 +1/- 0sec
Apply the soldering iron to the electrode .
The specimen shall be stored at standard
atmospheric conditions for 1 hour , after
which the measurements shall be made
Electrical characteristics shall be
Satisfied .
Without distinct deformation in
appearance