MF25 39R MULTICOMP, MF25 39R Datasheet - Page 3
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MF25 39R
Manufacturer Part Number
MF25 39R
Description
RESISTORS, 0.25W 1% 39R RESISTORS, 0.25W 1% 39R
Manufacturer
MULTICOMP
Series
MF25r
Datasheet
1.MF12_18K.pdf
(5 pages)
Specifications of MF25 39R
Resistors Element Type
METAL FILM
Resistance
39R
Case Style
AXIAL
Power Rating
0.25W
Tolerance, +
1%
Tolerance, -
1%
Temp, Op. Max
155(DEGREE C)
Temp, Op.
ROHS COMPLIANT
Performance Specification
RCWV = Rated Continuous Working Voltage = √ Rated Power X Resistance Value
MF12, MF25 & MF50 Series
Metal Film Resistors
Load life in humidity
Load life
Terminal strength
Resistance to
soldering heat
Solderability
Resistance to
solvent
Characteristics
Resistance change after 1000 hours (1.5 hours "on", 0.5
hour "off") at RCWV in a humidity test chamber controlled at
40°C ±2°C and 90 to 95% relative humidity.
Permanent resistance change after 1000 hours operating at
RCWV with duty cycle of 1.5 hours "on" 0.5 hours "off" at
70°C ±2°C ambient.
Direct Load: Resistance to a 2.5kgs direct load for 10
seconds in the direction of the longitudinal axis of the
terminal leads.
Twist test: Terminal leads shall be bent through 90° at a
point of about 6mm from the body of the resistor and shall
be rotated through 360° about the original axis of the bent
terminal in alternating direction for a total of 3 rotations.
Permanent resistance change when leads immersed to
3.2 - 4.8mm from the body in 350°C ±10°C solder for
3 ±0.5 seconds.
The area covered with a new, smooth, clean, shiny and
continuous surface free from concentrated pinholes.
Test temperature of solder
Dwell time in solder
Specimens shall be immersed in a bath of trichroethane
completely for 3 minutes with ultrasonic.
Test Methods
: 235°C ±5°C.
: 3+0.5/-0 seconds.
Page 3
Resistance Value
Normal type
Resistance Value
Normal type
No evidence of mechanical damage.
Resistance change rate is ±(1% +0.05Ω).
No evidence of mechanical damage.
95% coverage Minimum.
No deterioration of protective coating and
markings.
Limits
10/05/05 V1.0
±1.5%
∆ ∆ R/R
±1.5%
∆ ∆ R/R