Features
■
3/8 ” Square / Single-Turn / Cermet
Industrial / Sealed High Voltage
Focus Control
■
Designed for electrostatic focus control
applications on monochrome or
color CRTs
■
Rated at 1 KV D.C. and 600 VDC input
voltage
Model 3386-HV2 & 3386-HV3 are
obsolete and not recommended
for new designs.
■
High stability cermet element
■
Available with optional red knob
■
For trimmer applications/processing
guidelines,
click here
3386-HV2/3386-HV3 - 3/8 ” Trimpot
®
Trimming Potentiometer
Electrical Characteristics
Standard Resistance Range
............................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 @ 1 KV D.C.
.......................... 1,000 megohms min.
Dielectric Strength (5,000 foot altitude)
................................. 1.5 KV A.C. min.
Adjustment Angle ................. 280 ° nom.
Environmental Characteristics
HV2 Input Voltage
85 °C ........................... (1K VDC max.)
125 °C ....................................... 0 watt
HV3 Input Voltage
85 °C ..........................(600 VDC max.)
125 °C ....................................... 0 watt
Temperature Range ... -55 °C to +125 °C
Temperature Coefficient ... ±400 ppm/°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.
ΔTR)
HV3 .................. 1,000 hours 600 VDC
60 °C, 90 % R.H. (3 % max.
ΔTR)
Voltage Breakdown
(5,000 foot altitude) .......... 1.5 KV min.
Seal Test ......................85 °C Fluorinert†
Vibration .............. No discontinuity 30 G
Shock ................ No discontinuity 100 G
Rotational Life ...............200 cycles min.
Product Dimensions
3386N
Common Dimensions
3.81
(.150)
3.81
(.150)
4.83
(.190)
3.81
(.150)
Typical Focus Control Circuits
2
3
1
5.97
±
.89
(.235
±
.035)
5.08
(.200)
.38 MIN.
(.015)
3.05
.51
±
.05 DIA.
(.120)
(.020
±
.002)
†
ANODE
VOLTAGE
10-18 KV.
TYP.
E
T
E
L
O
S
B
O
ADJ. SLOT
.76
WIDE
(.030)
X 2.54 DEEP
(.100)
X 3.81 LONG
(.150)
9.53
(.375)
9.53
(.375)
G4
FOCUS
0-600V
ADJ. RANGE
TYP.
3386N-HV3-255
or
3386U-HV3-255
MONOCHROME
† VALUES DETERMINED BY CIRCUIT VOLTAGES
ANODE
VOLTAGE
21-27 KV.
TYP.
3386U
5.08
MIN.
(.200)
5.59
(.220)
†
5.08
(.200)
.51
±
.05
(.020
±
.002)
DIA. PINS
3.81
(.150)
3
1
†
2
G4
FOCUS
6-7 KV.
TYP.
.38 MIN.
(.015)
3.81
(.150)
0-1 KV.
FOCUS
RANGE
How To Order
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,
wiring diagram, date code,
manufacturer’s model
number and style
Flammability ..........................U.L. 94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool..............................H-90
3386 N - HV2 - 505 T
Model
Style
High Voltage
Construction Indicator
HV2 = 1000 VDC
HV3 = 600 VDC
Resistance Code
-255 = 2.5 megohms
-505 = 5 megohms
Optional Suffix Letter
T = Red Knob
3386N-HV2-505
or
3386U-HV2-505
COLOR
2
CCW
WIPER
1
CLOCKWISE
3
CW
DIMENSIONS:
TOLERANCES: ±
0.25
(.010)
MM
(INCHES)
EXCEPT WHERE NOTED
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.
Embedded System
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