MCKNP07SF2500B00 MULTICOMP, MCKNP07SF2500B00 Datasheet - Page 2

• Manufacturer Part Number: MCKNP07SF2500B00
• Description: RESISTOR, WIREWOUND, 250OHM, 7W, 1%
• Manufacturer: MULTICOMP
• Series: KNPr

Specifications of MCKNP07SF2500B00

• Resistance: 250ohm
• Resistance Tolerance: ± 1%
• Power Rating: 7W
• Voltage Rating: 500V
• Resistor Element Material: Wirewound
• Temperature Coefficient: ± 20ppm/°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Short time overload
Load life in humidity
Load Life
Temperature
coefficient
Temperature cycling
Resistance to
Solderability
Soldering Heat
Short time overload
Characteristics
±300 PPM/°C Max.
<20 O ± 400 PPM/°C
Resistance change rate is:
± (2.0 % + 0.05
± (0.5 % + 0.05Ù) Max.
Resistance change rate is
± (5.0 % + 0.05
Resistance change rate is
± (5.0 % + 0.05
Resistance change rate is
evidence of mechanical damage.
95 % coverage Min.
± (1% + 0.05
No Evidence of mechanical
damage
Performance specification
Limits
) Max. with no
) Max.
) Max.
) Max.
Natural resistance change per temp. degree centigrade
R1: Resistance value at room temperature (t1)
R2: Resistance value at room temp. plus 100°C (t2)
Resistance change after 1,000 hours (1.5 hours
hour "off" ) at RCWV in a humidity chamber controlled at
Permanent resistance change after 1,000 hours operating
"off") at 70°C ±2°C ambient
Dwell time in solder : 2 - 3 seconds
of a potential of 2.5 times RCWV for 5 seconds
duty cycle specified below:
40°C ±2°C and 90 to 95
at RCWV, with duty cycle of (1.5 hours"on", 0.5 hour
Test temperature of solder : 245 °C ± 3°C
Permanent resistance change after the application
Resistance change after continuous 5 cycles for
-Direct Load:
Resistance to a 2.5kgs direct load for 10sec. in the
direction of the longitudinal axis of the terminal leads.
-Twist test:
Terminal leads shall be bent throught 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 to 4.8 mm
from the body in 350°C ± 10°C
solder for 3± 0.5 seconds.
R1(t2-t1)
R2-R1
Test Methods (JIS - C - 5201-1)
Step Temperature
1
2
3
4
X 10
6
-55°C ±3°C
Room temp.
-155°C ±2°C
Room temp.
(PPM/°C)
% relative humidiity
30 mins
10 ~ 15 mins
30 mins
10 ~ 15 mins
Time
"on", 0.5
RoHS
Compliant