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128
FEATURES
•HighStability:±0.5%R
•Highpowertosizeratio
•Metalhousingallowschassismountingandpro-
videsheatsinkcapability
89 Series
Metal-Mite® Aluminum Housed
Axial Terminal Wirewound, 1% Tolerance
Series Wattage Ohms Voltage
805 5 0.10-25K 210
810 10 0.10-50K 320
825 25 0.010-75K 520
850 50 0.005-100K 1170
Non-Inductive versions available. Insert “N” before tolerance code.
Example: 850NF560
The89Seriesisahigh-performanceaxialtype
resistor.Thesemolded-constructionmetal-housed
resistorsareavailableinhigherpowerratingsthan
standardaxialresistorsandarebettersuitedtowith-
standingvibration,shockandharshenvironmental
conditions.
The89SeriesMetal-Mite®resistorsarealuminum
housedtomaintainhighstabilityduringoperation
andtopermitsecuremountingtochassissurfaces.
Themetalhousingalsoprovidesheat-sinking
capabilities.
Housing Metal, anodized aluminum
Internal Coating Silicone
Core Ceramic
Terminals Solder-coated axial
Derating Linearly from 100% @ +25°C to 0% @ +275°C.
Tolerance ±1% and ±5% (other tolerances available).
Power rating Rating is based on chassis mounting area and temperature stability. Proper heat sink as follows: 5W and
10W units, 4” x 6” x 2” x .040” Aluminum chassis; 25W units, 5” x 7” x 2” x .040” Aluminum chassis;
50W units, 12” x 12” x .059” Aluminum panel.
Maximum ohmic values See chart.
Overload 5 times rated wattage for 5 seconds.
Temperature coefficient Under 1Ω: ±90 ppm/°C; 1 to 9.99Ω: ±50 ppm/°C; 10Ω and over: ±20 ppm/°C.
Dielectric withstanding voltage 5W and 10W rating,1000 VAC; 25 and 50W ratings, 2250 VAC.
CHARACTERISTICS
SERIES SPECIFICATIONS
(continued)
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0.005–––R005 
0.010–––R010 
0.025–––R025 
0.1–––R10
0.3–––R30 
0.5–––R50
0.7–––R70
1.0–––1R0
1.5–––1R5
2.0–––2R0
3.0–––3R0
4.0–––4R0
5.0–––5R0
10.0–––10R
15.0–––15R
20–––20R
25 –––25R
30–––30R
40–––40R
50–––50R
75–––75R
100 –––100
150 –––150
200–––200
250–––250
300 –––300
400 –––400
500 –––500
750 –––750
1,000–––1K0
1,500–––1K5
2,000–––2K0
2,500–––2K5
3,000–––3K0
3,500 –––3K5
4,000 –––4K0
4,500–––4K5
5,000 –––5K0
6,000 –––6K0
10,000 –––10K
15,000–––15K
20,000–––20K
25,000–––25K
50,000 –––50K
75,000 –––75K 
100,000 –––100K
=Standardvalues
=Non-standardvaluessubjecttominimum
handlingchargeperitem
Shadedvaluesinvolveveryfineresistancewire
andshouldnotbeusedincriticalapplications
withoutburn-inand/orthermalcycling.
Ohmic value
805F––– 5
810F––– 10
825F––– 25
850F––– 50
Wattage
Part No.
Prefix
Suffix
Ohmic value
805F––– 5
810F––– 10
825F––– 25
850F––– 50
Wattage
Part No.
Prefix
Suffix
Ohmic value
805F––– 5
810F––– 10
825F––– 25
850F––– 50
Wattage
Part No.
Prefix
Suffix
805NF5R0E
Series
805 = 5 Watt
810 = 10 watt
825 = 25 watt
850 = 50 watt
Ohms
R005= 0.005
R10=0.1
1R0=1.0
250 = 250
1K0= 1,000
1K5= 1,500
25K = 25,000
RoHS
Compliant
Tolerance
F = 1%
J = 5%
Non-Inductive Winding
Optional (blank = std. winding)
As of September 2006,
the 89 Series is no longer
offered as Mil. Spec.
Dimensions have changed
as of August 2015
DIMENSIONS
(in./mm)
89 Series
Metal-Mite® Aluminum Housed
Axial Terminal Wirewound, 1% Tolerance
ORDERING INFORMATION
F
B
E
AG
J
L
D
HK
C
810, 825, 850805
Ø 2.0
±.25
2.1
±.1
Ø 1.27
±.13
A
2.16 min.
}
G
16AWG
min.
F
D
C
H
B
K
E
L
J
A B C D E F G H J K L
max. max. max. max. max. ±.3mm ±.3mm max. max. max. ±.25mm
805 0.65" / 16.5 1.18" / 30.0 0.35" / 8.8 0.33" / 8.5 0.63" / 15.9 0.44" / 11.3 0.49" / 12.4 0.18" / 4.5 0.09" / 2.4 0.07" / 1.8 0.09" / 2.4
810 0.83" / 21.0 1.44" / 36.5 0.43" / 11.0 0.44" / 11.2 0.78" / 19.9 0.56" / 14.3 0.63" / 15.9 0.22" / 5.5 0.11" / 2.8 0.07" / 1.8 0.09" / 2.4
825 1.10" / 28.0 2.01" / 51.0 0.58" / 14.8 0.56" / 14.2 1.07" / 27.3 0.72" / 18.3 0.78" / 19.8 0.30" / 7.7 0.20" / 5.2 0.10" / 2.6 0.13" / 3.2
850 1.10" / 28.0 2.85" / 72.5 0.58" / 14.8 0.56" / 14.2 1.93" / 49.1 1.56" / 39.7 0.84" / 21.4 0.33" / 8.4 0.20" / 5.2 0.10" / 2.6 0.13" / 3.2