89 series
Metal-Mite Aluminum Housed
Axial Terminal Wirewound, 1% Tolerance
The 89 Series is a high-per formance 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
Features
conditions.
The 89 Series Metal-Mite resistors are aluminum
High Stability: 0.5% R
housed to maintain high stability during operation
High power to size ratio
and to permit secure mounting to chassis sur faces.
Metal housing allows chassis mounting and pro-
The metal housing also provides heat-sinking
vides heat sink capability
capabilities.
series speCiFiCations
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
CharaCteristiCs
Housing Metal, anodized aluminum
Internal Coating Silicone
Core Ceramic
Terminals Solder-coated axial
Linearly from 100% @ +25C to 0% @ +275C.
Derating
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.
5 times rated wattage for 5 seconds.
Overload
Temperature coefficient Under 1: 90 ppm/C; 1 to 9.99: 50 ppm/C; 10 and over: 20 ppm/C.
Dielectric withstanding voltage 5W and 10W rating,1000 VAC; 25 and 50W ratings, 2250 VAC.
(continued)
128 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info@ohmite.com
89 series
Metal-Mite Aluminum Housed
Axial Terminal Wirewound, 1% Tolerance
805 810, 825, 850
Dimensions
B
E
(in./mm)
J
1.27
L
.13 2.0
.25
G A
A
D
2.1
16AWG
.1
L min.
F
Dimensions have changed
E
as of August 2015
J F
B
G
D
K
C
C
H H
K
2.16 min.
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
orDerinG inFormation
Wattage Wattage Wattage
Non-Inductive Winding RoHS
Optional (blank = std. winding) Compliant
Part No. Part No. Part No.
Prefix Prefix Prefix
805NF5R0E
Suffix Suffix Suffix
0.005 R005 20 20R 1,500 1K5
Series Tolerance Ohms
805 = 5 Watt F = 1% R005= 0.005
0.010 R010 25 25R 2,000 2K0
810 = 10 watt J = 5% R10= 0.1
0.025 R025 30 30R 2,500 2K5
825 = 25 watt 1R0= 1.0
0.1 R10 40 40R 3,000 3K0 850 = 50 watt 250 = 250
1K0= 1,000
0.3 R30 50 50R 3,500 3K5
1K5= 1,500
0.5 R50 75 75R 4,000 4K0 25K = 25,000
0.7 R70 100 100 4,500 4K5 = Standard values
1.0 1R0 150 150 5,000 5K0
= Non-standard values subject to minimum
handling charge per item
1.5 1R5 200 200 6,000 6K0
2.0 2R0 250 250 10,000 10K Shaded values involve ver y fine resistance wire
and should not be used in critical applications
3.0 3R0 300 300 15,000 15K
without burn-in and/or thermal cycling.
4.0 4R0 400 400 20,000 20K
5.0 5R0 500 500 25,000 25K
10.0 10R 750 750 50,000 50K
15.0 15R 1,000 1K0 75,000 75K
100,000 100K
As of September 2006,
the 89 Series is no longer
offered as Mil. Spec.
1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info@ohmite.com 129
Ohmic value
805F 5
810F 10
825F 25
850F 50
Ohmic value
805F 5
810F 10
825F 25
850F 50
Ohmic value
805F 5
810F 10
825F 25
850F 50
}