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參數資料
| 型號： | 3250 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 數字電位計 |
| 英文描述： | Square Trimming Potentiometer |
| 中文描述： | 廣場微調電位器 |
| 文件頁數： | 1/1頁 |
| 文件大?。?/td> | 41K |
| 代理商： | 3250 |
3250/RT22/RTR22 - 1/2 ” Square Trimming Potentiometer
Specifications are subject to change without notice.
Features
■
Multiturn / Wirewound / Sealed
Listed on the QPL for style RT22 per
High-Rel MIL-R-39015■
Panel Mount option
available
Electrical Characteristics
Standard Resistance Range
3250 .....................................10 to 50K ohms
RT22.....................................50 to 20K ohms
RTR22 ................................500 to 20K ohms
(see standard resistance table)
Resistance Tolerance.......................±5 % std.
(tighter tolerance available)
Absolute Minimum Resistance
......0.1 % or 1 ohm max. (whichever is greater)
Noise...............................100 ohms ENR max.
Resolution .....................See Resistance Table
Insulation Resistance.........................500 vdc.
1,000 megohms min.
Dielectric Strength
Sea Level........................................1,000 vac
80,000 Feet.......................................400 vac
Adjustment Travel......................25 turns nom.
Environmental Characteristics
Power Rating @ 85 °C
3250..................................................1.0 watt
RT22/RTR22 ...................................0.75 watt
Power Rating @ 150 °C .........................0 watt
Temperature Range.............-65 °C to +150 °C
Temperature Coefficient
3250...........................................±50 ppm/°C
RT22/RTR22...............................±50 ppm/°C
Seal Test......85 °C Fluorinert*(pin styles only)
Humidity ................MIL-STD-202 Method 106
3250.................(2 %
TR; 100 Megohms IR)
RT22...................(1 %
TR; 10 Megohms IR)
RTR22 ..............(1 %
TR; 100 Megohms IR)
Vibration...................................................30 G
(1 %
TR; 0.5 % + resolution
VR)
Shock.....................................................100 G
(1 %
TR; 0.5 % + resolution
VR)
Load Life
3250...............1,000 hours 1.0 watt @ 85 °C
(2 %
TR; 500 ohms ENR)
RT22 ............1,000 hours 0.75 watt @ 85 °C
(2 %
TR; 2 % + resolution
VR)
RTR22........10,000 hours 0.75 watt @ 85 °C
(3 %
TR; 2 % + resolution
TR)
Rotational Life.................................200 cycles
3250 ....................(2 %
TR; 500 ohms ENR)
RT22/RTR22..................................(2 %
TR)
Physical Characteristics
Torque......................................5.0 oz-in. max.
Mechanical Stops ..........................Wiper idles
Terminals
3250..............Solderable printed circuit pins
Flexible leads (7 strands of 30 AWG)
RT22/RTR22.......MIL-STD-202; Method 208
Weight.................................................0.06 oz.
Machine Screw Mounting
Torque.....................................12 oz-in. max.
Marking
3250.....................Manufacturer’s trademark,
resistance code, terminal numbers,
date code, manufacturer’s model
number and style
RT22/RTR22 ..............Mil-spec part number
Wiper........................................Set at CW end
Flammability....................................U.L. 94V-0
Standard Packaging
P&W Styles..........................25 pcs. per tube
L Style...................................25 pcs. per bag
Adjustment Tool.......................................H-90
1
3
GREEN
CW
CLOCKWISE
YELLOW
CCW
2
WIPER
RED
1.98
(.078)
3250P/RT22/RTR22 Common Dimensions
(Pin Styles)
(12.7
TYP.
DIA. THRU
(2 PLACES)
.89
(.035)
TYP.
1.78
(.070)
5.59
(.220)
TYP.
13.33
±
.64
(.525
±
.025)
.71
±
.08
(.028
±
.003)
2.54
(.100)
2.54
(.100)
6.35
(.250)
1
2
3
"L" Flex Lead Type
RT22 has mounting slots
RTR22 has mounting holes
2.36
(.093)
13.21
(.520)
12.70
(.500)
1.40
(.055)
4.75
(.187)
.89
(.035)
1.52
(.060)
152.4
(6.00)
2.79
(.110)
3250W/RT22/RTR22
2
1
3
3250W-66/RT22X/RTR22X
2
1
3
2.79
(.110)
12.7
(.500)
12.7
(.500)
2.54
(.100)
2.54
(.100)
2.54
(.100)
2.54
(.100)
2.54
(.100)
6.35
(.250)
6.35
(.250)
6.35
(.250)
DIA. TYP.
TYP.
TYP.
TYP.
TYP.
TYP.
LENGTH
MIN.
DIA. THRU
(2 PLACES)
13.21
(.520)
2.03
±
.38
(.080
±
.015)
.64
(.024)
WIDE
X
X
DEEP
DIA.
ADJ. SLOT
3.1
(.122)
Standard Resistance Table
Popular values listed in boldface. Special
resistances available.
How To Order
3250 L - 1 - 103 M
Model
Style
Standard or Modified
Product Indicator
-1 = Standard Product
Resistance Code
Optional Suffix Letter
M = Panel Mount
(Factory Installed)
See “
Mil-Spec Numbering System
” for RT22/
RTR22 ordering information.
Consult factory for other available options.
Nominal
Resistance
Code
100
200
500
101
201
501
102
202
502
103
203
253
503
Resistance
(Ohms)
10
20
50
100
200
500
1,000
2,000
5,000
10,000
20,000
25,000
50,000
Resolution
(Percent)
1.30
1.00
0.80
0.90
0.70
0.60
0.40
0.30
0.25
0.19
0.16
0.14
0.13
SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.
THOUGH
DSTRBUION
DIMENSIONS ARE:
MM
(INCHES)
TOLERANCES: ±0.25 (.010) EXCEPT WHERE NOTED
*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.
REV. 02/03
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相關代理商/技術參數 |
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| 3250 BK001 | 功能描述:連接線 24AWG 7/32 SR-PVC 1000ft SPOOL BLACK RoHS:否 制造商:Belden Wire & Cable 絞合:19 x 32 電壓額定值:1 kV 長度:1000 ft 線規 - 美國線規（AWG）:20 絕緣材料:Tetraflouroethylene (TFE) 最大溫度:+ 200 C 類型:High Temperature, High Voltage 外殼顏色:Blue (Light) 系列:83027 |
| 3250 BK005 | 功能描述:連接線 24AWG 7/32 SR-PVC 100ft SPOOL BLACK RoHS:否 制造商:Belden Wire & Cable 絞合:19 x 32 電壓額定值:1 kV 長度:1000 ft 線規 - 美國線規（AWG）:20 絕緣材料:Tetraflouroethylene (TFE) 最大溫度:+ 200 C 類型:High Temperature, High Voltage 外殼顏色:Blue (Light) 系列:83027 |
| 3250 BK005 | 制造商:Alpha Wire Company 功能描述:WIRE, BLK, 24AWG, 7/32AWG, 30.5M |
| 3250 BL001 | 功能描述:連接線 24AWG 7/32 SR-PVC 1000ft SPOOL BLUE RoHS:否 制造商:Belden Wire & Cable 絞合:19 x 32 電壓額定值:1 kV 長度:1000 ft 線規 - 美國線規（AWG）:20 絕緣材料:Tetraflouroethylene (TFE) 最大溫度:+ 200 C 類型:High Temperature, High Voltage 外殼顏色:Blue (Light) 系列:83027 |
| 3250 BL005 | 制造商:Alpha Wire Company 功能描述:Wire, Hook-Up; 24 AWG; 7/32; 0.009 in.; 0.042 in.; -10 degC; 80 degC; 300 V; B 制造商:Alpha Wire Company 功能描述:3250 BLUE 100 FT 制造商:Alpha Wire Company 功能描述:WIRE BLU 24AWG 7/32AWG 30. 制造商:Alpha Wire Company 功能描述:WIRE, BLU, 24AWG, 7/32AWG, 30.5M 制造商:Alpha Wire Company 功能描述:3250 BLUE 100 FT ;ROHS COMPLIANT: YES |
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