■ Rated at 1KV D.C. and 600 VDC input
voltage
Features
■ 3/8” Square / Single-Turn / Cermet
Industrial / Sealed High Voltage
Focus Control
■ High stability cermet element
■ Available with optional red knob
■ Designed for electrostatic focus control
applications on monochrome or
color CRTs
3386 HV2/3386 HV3 - 3/8” Trimming Potentiometer
3386N
Typical Focus Control Circuits
Electrical Characteristics
Common Dimensions
Standard Resistance Range
3.81
(.150)
3.81
4.83
(.190)
..............................2.5 and 5 megohms
Resistance Tolerance ....................±20%
Contact Resistance Variation
...............................................2% max.
Adjustability
Voltage Divider.........................±0.05%
Rheostat...................................±0.15%
Resolution.....................................Infinite
Insulation Resistance @ 1KV D.C.
............................1,000 megohms min.
Dielectric Strength (5,000 foot altitude)
...................................1.5 KV A.C. min.
Adjustment Angle ...................280° nom.
3.81
(.150)
ANODE
VOLTAGE
10-18 KV.
TYP.
(.150)
5.97 ± .89
(.235 ± .035)
2
1
3
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
X
X
DEEP
3386N-HV3-255
or
3386U-HV3-255
Environmental Characteristics
9.53
(.375)
LONG
HV2 Input Voltage
(.150)
85°C ..............................(1 KVDC max.)
125°C..........................................0 watt
HV3 Input Voltage
85°C.............................(600 VDC max.)
125°C..........................................0 watt
Temperature Range
MONOCHROME
† VALUES DETERMINED BY CIRCUIT VOLTAGES
9.53
(.375)
ANODE
VOLTAGE
21-27 KV.
TYP.
3386U
...................................-55°C to +125°C
Temperature Coefficient
.........................................±400ppm/°C
Humidity........MIL-STD-202 Method 103
240 Hours (100 megohms min. IR)
Load Life
HV2 ......................1,000 hours 1 KVDC
60°C, 90% R.H. (3% max. ∆TR)
HV3.....................1,000 hours 600 VDC
60°C, 90% R.H. (3% max. ∆TR)
Voltage Breakdown
†
5.08
(.200)
5.59
(.220)
MIN.
5.08
(.200)
3.81
(.150)
G4
FOCUS
6-7 KV.
.51 ± .05
(.020 ± .002)
DIA. PINS
†
TYP.
3
2
1
3.81
(.150)
.38
0-1 KV.
FOCUS
RANGE
MIN.
(.015)
(5,000 foot altitude) ............1.5 KV min.
Seal Test ........................85°C Fluorinert*
Vibration ................No discontinuity 30G
Shock ..................No discontinuity 100G
Rotational Life ................200 cycles min.
3386N-HV2-505
or
3386U-HV2-505
COLOR
Physical Characteristics
Mechanical Angle ...................310° nom.
Torque .............................5.0 oz-in. max.
Stop Strength ................15.0 oz -in. min.
Terminals ........................Solderable pins
Weight ........................................0.04 oz.
Marking ...........................Manufacturer’s
trademark, resistance code,
How To Order
3386 N - HV2 - 505 T
WIPER
2
CW
CCW
3
1
Model
CLOCKWISE
Style
High Voltage
Construction Indicator
HV2 = 1000 VDC
TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED
wiring diagram, date code,
HV3 = 600 VDC
METRIC
(INCHES)
DIMENSIONS ARE:
manufacturer’s model
Resistance Code
number and style
-255 = 2.5 megohms
-505 = 5 megohms
Flammability ..........................U.L. 94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90
Optional Suffix Letter
T = Red Knob
SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.
*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.
Specifications are subject to change without notice.
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