Model 3386-HV2 & 3386-HV3 are
obsolete and not recommended
for new designs.
Features
■ 3/8 ” Square / Single-Turn / Cermet
Industrial / Sealed High Voltage
Focus Control
■ Designed for electrostatic focus control
applications on monochrome or
color CRTs
■ High stability cermet element
■ Available with optional red knob
■ For trimmer applications/processing
guidelines, click here
■ Rated at 1 KV D.C. and 600 VDC input
voltage
3386-HV2/3386-HV3 - 3/8 ” Trimpot® Trimming Potentiometer
Electrical Characteristics
Product Dimensions
Standard Resistance Range
3386N
Typical Focus Control Circuits
............................2.5 and 5 megohms
Resistance Tolerance .................. ±2ꢀ ꢁ
Contact Resistance Variation
............................................ 2 ꢁ max.
Adjustability
Voltage Divider...................... ±ꢀ.ꢀ5 ꢁ
Rheostat................................ ±ꢀ.ꢂ5 ꢁ
Resolution ................................... Infinite
Insulation Resistance @ ꢂ KV D.C.
..........................ꢂ,ꢀꢀꢀ megohms min.
Dielectric Strength (5,ꢀꢀꢀ foot altitude)
................................. ꢂ.5 KV A.C. min.
Adjustment Angle................. 28ꢀ ° nom.
Common Dimensions
3.81
(.150)
3.81
4.83
(.190)
3.81
(.150)
ANODE
VOLTAGE
10-18 KV.
TYP.
(.150)
5.97 .89
(.235 .035)
2
3
1
5.08
†
(.200)
.38
(.015)
DIA.
MIN.
3.05
(.120)
.51 .05
(.020 .002)
G4
FOCUS
0-600V
ADJ. RANGE
TYP.
ADJ. SLOT
.76
WIDE
(.030)
2.54
(.100)
3.81
Environmental Characteristics
X
X
DEEP
LONG
3386N-HV3-255
or
3386U-HV3-255
HV2 Input Voltage
9.53
(.375)
85 °C........................... (ꢂK VDC max.)
ꢂ25 °C.......................................ꢀ watt
HV3 Input Voltage
85 °C..........................(6ꢀꢀ VDC max.)
ꢂ25 °C.......................................ꢀ watt
Temperature Range...-55 °C to +ꢂ25 °C
Temperature Coefficient ... ±±ꢀꢀ ppm/°C
Humidity .......MIL-STD-2ꢀ2 Method ꢂꢀ3
2±ꢀ Hours (ꢂꢀꢀ megohms min. IR)
Load Life
HV2 ....................ꢂ,ꢀꢀꢀ hours ꢂ KVDC
6ꢀ °C, 9ꢀ ꢁ R.H. (3 ꢁ max. ΔTR)
HV3 .................. ꢂ,ꢀꢀꢀ hours 6ꢀꢀ VDC
6ꢀ °C, 9ꢀ ꢁ R.H. (3 ꢁ max. ΔTR)
Voltage Breakdown
(.150)
MONOCHROME
† VALUES DETERMINED BY CIRCUIT VOLTAGES
9.53
(.375)
ANODE
VOLTAGE
21-27 KV.
TYP.
3386U
†
5.08
(.200)
MIN.
5.08
(.200)
3.81
(.150)
G4
5.59
(.220)
FOCUS
6-7 KV.
TYP.
.51 .05
(.020 .002)
DIA. PINS
†
3
2
1
(5,ꢀꢀꢀ foot altitude).......... ꢂ.5 KV min.
Seal Test......................85 °C Fluorinert†
Vibration ..............No discontinuity 3ꢀ G
Shock ................No discontinuity ꢂꢀꢀ G
Rotational Life ...............2ꢀꢀ cycles min.
3.81
(.150)
.38
0-1 KV.
FOCUS
RANGE
MIN.
(.015)
How To Order
3386N-HV2-505
or
3386U-HV2-505
3386 N - HV2 - 505 T
Physical Characteristics
Model
Mechanical Angle................. 3ꢂꢀ ° nom.
Torque.............................5.ꢀ oz-in. max.
Stop Strength ...............ꢂ5.ꢀ oz -in. min.
Terminals .......................Solderable pins
Weight .......................................ꢀ.ꢀ± oz.
Marking...........................Manufacturer’s
trademark, resistance code,
COLOR
Style
High Voltage
WIPER
2
Construction Indicator
HV2 = ꢂꢀꢀꢀ VDC
HV3 = 6ꢀꢀ VDC
CW
CCW
3
1
CLOCKWISE
Resistance Code
-255 = 2.5 megohms
-5ꢀ5 = 5 megohms
wiring diagram, date code,
manufacturer’s model
MM
DIMENSIONS:
0.25
number and style
(INCHES)
Optional Suffix Letter
T = Red Knob
Flammability ..........................U.L. 9±V-ꢀ
Standard Packaging.....5ꢀ pcs. per tube
Adjustment Tool..............................H-9ꢀ
TOLERANCES:
EXCEPT WHERE NOTED
(.010)
REV. 10/11
“Trimpot” is a registered trademark of Bourns, Inc.
†“Fluorinert” is a registered trademark of 3M Co.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.