Sherburn Electronics
Sherburn Electronics Inc. 175K Commerce Drive Hauppauge NY 11788

Toll Free (800) 366-3066
(631) 231-4300
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Series SPR/RV8 potentiometers are for PCB applications requiring a rugged potentiometer.
Picture
Picture

MIL Style RV8
Precision Series SPR


Features
  • hot molded carbon element
  • board washable
  • stainless steel shaft
  • compact size
  • quality meeting or exceeding MIL-R-94 - QPL listed


Electrical Specifications
  • Resistance range, linear taper: 100  to 5 Meg 
  • Resistance range, logarithmic taper: 150  to 1 Meg 
  • Resistance tolerance: ±10% or ±20%
  • Resistance taper: linear, logarithmic, reverse logarithmic; other tapers by special order
  • Power rating: 0.5 watts at 70°C derated to 0 watts at 120°C
  • Insulation resistance:
  • dry: 10K Meg 
  • wet: 100K Meg 
  • Dielectric strength: 750 V RMS at sea level
  • Operating voltage: 350 V, subject to power rating


Mechanical Specifications
  • Mechanical rotation: 295°
  • Operating torque: 0.5 oz/in to 6 oz/in
  • Rotational life: 25,000 cycles

​Environmental Specifications
  • Operating temperature: -65°C to +125°C
  • Resistance to soldering heat: 350°C for 5 seconds
  • Humidity range: per MIL-R-94
  • Vibration range: per MIL-R-94
  • Shock resistance: per MIL-R-94
  • Load life: 1000 hours at 70°C

Ordering Information - Military Part numbers

Example: RV8NAYSD252A
Series:



​SPR
 = series SPR
Bushing:



​N
 = standard
L = locking
S = panel & shaft seal
Switch:



​A
 = without switch
Temperature
and moisture
characteristics:

Y
 = as per MIL-R-94

Shaft style:


S
 = slotted
F = flatted
Shaft length:



L = 3/8"
B = 1/2"
A = 5/8"
D = 7/8"
Resistance value:


​Total resistance
value in :

first two digits
significant,
third digit =
number of zeroes
Taper and tolerance:


​A
 = linear 10%
B = linear 20%
C = logarithmic
10%
D = logarithmic
20%
E = reverse
logarithmic 10%
F = reverse
logarithmic 20%

Series SPR Cross Reference

Precision

SPR
SPRL
Military

​
RV8NAY
RV8LAY
Sherburn Electronics Inc.  2014  sales@sherburn.com   800-366-3066