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89 Series Datasheet

Metal-Mite® Aluminum Housed Axial Terminal Wirewound, 1% Tolerance  

Res 89 product image

 

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 withstanding 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

 

Features

  • High Stability: ±0.5% ∆R
  • High power to size ratio
  • Metal housing allows chassis mounting and provides heat sink capability

Series Specifications

Wattage: 5

Ohms: 0.10-25K

Voltage: 210

Wattage: 10

Ohms: 0.10-50K

Voltage: 320

Wattage: 25

Ohms: 0.010-75K

Voltage: 520

Wattage: 50

Ohms: 0.005-100K

Voltage: 1170

 

Non-Inductive versions available. Insert “N” before tolerance code.
Example: 850NF560

Characteristics

Metal, anodized aluminum

Silicone

Ceramic

Solder-coated axial

Linearly from 100% @ +25°C to 0% @ +275°C.

±1% and ±5% (other tolerances available).

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.

See chart.

5 times rated wattage for 5 seconds.

Under 1Ω: ±90 ppm/°C; 1 to 9.99Ω: ±50 ppm/°C; 10Ω and over: ±20 ppm/°C.

5W and 10W rating,1000 VAC; 25 and 50W ratings, 2250 VAC.

Dimensions

(in./mm) 

 

Dimensions have change das of August 2015

 

Res 89 Dimensions 1

A max: 0.65" / 16.5

B max: 1.18" / 30.0

C max: 0.35" / 8.8

D max: 0.33" / 8.5

E max: 0.63" / 15.9

F ±.3mm: 0.44" / 11.3

G ±.3mm: 0.49" / 12.4

H max: 0.18" / 4.5

J max: 0.09" / 2.4

K max : 0.07" / 1.8

L ±.25mm: 0.09" / 2.4

A max: 0.83" / 21.0

B max: 1.44" / 36.5

C max: 0.43" / 11.0

D max: 0.44" / 11.2

E max: 0.78" / 19.9

F ±.3mm: 0.56" / 14.3

G ±.3mm: 0.63" / 15.9

H max: 0.22" / 5.5

J max: 0.11" / 2.8

K max : 0.07" / 1.8

L ±.25mm: 0.09" / 2.4

A max: 1.10" / 28.0

B max: 2.01" / 51.0

C max: 0.58" / 14.80

D max: 0.56" / 14.2

E max: 1.07" / 27.3

F ±.3mm: 0.72" / 18.3

G ±.3mm: 0.78" / 19.8

H max: 0.30" / 7.7

J max: 0.20" / 5.2

K max : 0.10" / 2.6

L ±.25mm: 0.13" / 3.2

A max: 1.10" / 28.0

B max: 2.85" / 72.5

C max: 0.58" / 14.8

D max: 0.56" / 14.2

E max: 1.93" / 49.1

F ±.3mm: 1.56" / 39.7

G ±.3mm: 0.84" / 21.4

H max: 0.33" / 8.4

J max: 0.20" / 5.20

K max : 0.10" / 2.6

L ±.25mm: 0.13" / 3.2

Ordering Information

Res 89 Order Info

As of September 2006, the 89 Series is no longer offered as Mil. Spec.

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