KHR 2-T227 300.0 OHM 1% Riedon, KHR 2-T227 300.0 OHM 1% Datasheet - Page 2

• Manufacturer Part Number: KHR 2-T227 300.0 OHM 1%
• Description: RES 300 OHM 200W 1% TO-227
• Manufacturer: Riedon
• Series: KHRr

Specifications of KHR 2-T227 300.0 OHM 1%

• Resistance (ohms): 300
• Power (watts): 200W
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Tolerance: ±1%
• Coating, Housing Type: Epoxy Coated
• Mounting Feature: Flanges
• Size / Dimension: 1.500" L x 1.020" W (38.10mm x 25.91mm)
• Height: 0.390" (9.91mm)
• Lead Style: M4 Threaded
• Package / Case: SOT-227-2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: KHR2-T227-300.0F

Riedon Inc.
KPR KPN
KHR KHN
Power Resistors
120
100
80
60
40
20
0
50
10kJ
300J
100J
0,1J
0,3J
30J
3kJ
1kJ
10J
3J
1J
2/4-T227
75
2/4-T227
300 Cypress Avenue
Temperature of the backplate (°C)
85
-3000
-8000
7000
2000
100
-50
115
SPECIFICATIONS
-25
Temperature Coefficient
130
Alhambra CA 91801
www.riedon.com
Pulse Stability
0
Temperature (°C)
145
Derating
25
155
Pulse time (s)
50
Power Rating Notes -
The KPR / KPN / KHR / KHN Series Resistors must be attached
to a suitable heatsink. The maximum internal resistor tempera-
ture is 155°C.
To specify an appropriate heatsink use the following formula :
R
Where: R
(continued)
qH
= T
75
P
MAX
R
T
T
P = Power Through Resistor ( W )
A
MAX
[phone]
qH
qR
100
= Ambient Temperature of Heatsink ( °C )
- ( P x R
= Thermal Resistance of Heatsink ( K/W )
= Thermal Resistance of Resistor ( K/W )
= Maximum Temperature of Resistor
125
100ppm/K
50ppm/K
qR
) - T
A
[phone]
Page 63
rev. 01/2011