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参数资料
| 型号： | 3345P-1-203T |
| 厂商： | Bourns Inc. |
| 文件页数： | 1/1页 |
| 文件大小： | 0K |
| 描述： | TRIMMER 20K OHM 1W TH |
| 标准包装： | 100 |
| 系列： | Trimpot® 3345 - 密封式 |
| 电阻（欧姆）： | 20k |
| 功率（瓦特）： | 1W |
| 容差： | ±5% |
| 温度系数： | ±50ppm/°C |
| 匝数： | 单路 |
| 调节型： | 顶部调节 |
| 电阻材料： | 绕线 |
| 安装类型： | 通孔 |
| 端接类型： | PC 引脚 |
| 包装： | 散装 |
| 尺寸/尺寸： | 圆形 - 0.495" 直径 x 0.315" H（12.57mm x 8.00mm） |
Features
■ Single-turn / Wirewound / Industrial /
Sealed
■ For trimmer applications/processing
guidelines, click here
■
■
■
■
Industrial wirewound
1.0 watt power rating at 70 °C
Available with a thumbwheel and
screwdriver slot adjustment
RoHS compliant*
3345 - 1/2 ” Round Trimpot ? Trimming Potentiometer
Electrical Characteristics
Product Dimensions
Standard Resistance Table
Standard Resistance Range
.......................................10 to 50K ohms
(see standard resistance table)
Resistance Tolerance ................. ±5 % std.
(tighter tolerance available)
Absolute Minimum Resistance
..........................1.0 % or 0.5 ohms max.
3345P
ADJ. SLOT
5.97
(.235)
DIA.
.89 .64
LONG X DEEP X WIDE
(.035) (.025)
11.43 ± .38
(.450 ± .015)
Resistance
(Ohms)
10
20
50
100
200
Resistance
Code
100
200
500
101
201
Nominal
Resolution
(Percent)
0.94
0.76
0.58
0.49
0.49
.38
.71 ± .08
(.028 ± .003)
DIA.
(whichever is greater)
Noise ........................ 100 ohms ENR max.
Resolution
................See standard resistance table
1,000 megohms min.
Dielectric Strength
Sea Level ................................1,500 vac
70,000 Feet ................................350 vac
Insulation Resistance ...................500 vdc.
100 megohms min.
5.97 ± .38 MIN. STANDOFFS
(.235 ± .015)
5.08
(.200)
MIN. LENGTH
(.015)
2.54
(.10)
2.54
(.10)
2.54
(.10)
1
2
3
500 501 0.38
1,000 102 0.30
2,000 202 0.24
5,000 502 0.18
10,000 103 0.14
20,000 203 0.13
50,000 503 0.12
Special resistances available from 10 to
50K ohms.
How To Order
Adjustment Angle......................280 ° nom.
Environmental Characteristics
Power Rating
3345P THUMBWHEEL
8.00 ± .38
(.315 ± .015)
Model
Style
3345 P - 1 - 502 T
70 °C..............................................1 watt
150 °C ...........................................0 watt
Temperature Range.......-55 °C to +150 °C
12.57 ± .38
(.495 ± .015)
DIA.
11.43 ± .38
(.450 ± .015)
Standard Product
Resistance Code
Temperature Coef?cient ........ ±50 ppm/°C
Optional Suf?x Letter
Seal Test .........................85 °C Fluorinert?
5.97 ± .38
T = Thumb Wheel
2
Humidity ...........MIL-STD-202 Method 106
(1 % Δ TR, 10 megohms IR)
Vibration .......... 30 G (1 % Δ TR; 1 % Δ VR)
Shock ............ 100 G (1 % Δ TR; 1 % Δ VR)
Load Life ...... 1,000 hours, 1 watt @ 70 °C
3345W
13.34 ± .38
.686 ± .38
(.270 ± .015)
(.235 ± .015)
Consult factory for other available options.
WIPER
Rotational Life ........................... 200 cycles
(2 % Δ TR; 500 ohms ENR)
Physical Characteristics
(.525 ± .015)
11.43 ± .38
DIA.
(.450 ± .015)
2
3
1
2.54
(.10)
2.54
(.10)
CCW
1
CLOCKWISE
3
CW
Mechanical Angle .....................310 ° nom.
Torque .................................5.0 oz-in. max.
Stop Strength ........................15 oz-in. min.
Terminals........................... Solderable pins
Weight ............................................0.04 oz.
MIN.
12.7
(.500)
1.09 ± .38
(.043 ± .015)
2.54
(.10)
DIMENSIONS:
0.25
TOLERANCES:
(.010)
MM
(INCHES)
EXCEPT WHERE NOTED
Marking .............................. Manufacturer’s
3345W THUMBWHEEL
trademark, resistance code,
wiring diagram, date code,
manufacturer ’s model number
and style
Standard Packaging ....... 100 pcs. per bag
13.97 ± .38
(.550 ± .015)
12.57 ± .38 11.93 ± .38
(.495 ± .015) (.450 ± .015)
2
3
1
8.78 ± .38
(.345 ± .015)
1.09 ± .38
(.043 ± .015)
6.86 ± .38
(.270 ± .015)
REV. 04/14
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
“Trimpot” is a registered trademark of Bourns, Inc.
?”Fluorinert” is a registered trademark of 3M Co.
Speci?cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their speci?c applications.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 3345P-1-251 | 功能描述:微调电阻 - 通孔 1/2" RND 251ohm RoHS:否 制造商:Vishay/Sfernice 产品:Trimmer Resistors - Multi Turn 产品类型:Multiturn 转数:14 锥度:Linear 电阻:10 kOhms 电压额定值:250 V 端接类型:Pin 功率额定值:250 mW (1/4 W) 容差:10 % 温度系数:100 PPM / C |
| 3345P-1-252 | 功能描述:微调电阻 - 通孔 1/2" RND 2.5K RoHS:否 制造商:Vishay/Sfernice 产品:Trimmer Resistors - Multi Turn 产品类型:Multiturn 转数:14 锥度:Linear 电阻:10 kOhms 电压额定值:250 V 端接类型:Pin 功率额定值:250 mW (1/4 W) 容差:10 % 温度系数:100 PPM / C |
| 3345P-1-253 | 功能描述:微调电阻 - 通孔 1/2" RND 25K RoHS:否 制造商:Vishay/Sfernice 产品:Trimmer Resistors - Multi Turn 产品类型:Multiturn 转数:14 锥度:Linear 电阻:10 kOhms 电压额定值:250 V 端接类型:Pin 功率额定值:250 mW (1/4 W) 容差:10 % 温度系数:100 PPM / C |
| 3345P-1-300 | 功能描述:微调电阻 - 通孔 1/2" RND 300ohm RoHS:否 制造商:Vishay/Sfernice 产品:Trimmer Resistors - Multi Turn 产品类型:Multiturn 转数:14 锥度:Linear 电阻:10 kOhms 电压额定值:250 V 端接类型:Pin 功率额定值:250 mW (1/4 W) 容差:10 % 温度系数:100 PPM / C |
| 3345P-1-500 | 功能描述:微调电阻 - 通孔 1/2" RND 50ohm RoHS:否 制造商:Vishay/Sfernice 产品:Trimmer Resistors - Multi Turn 产品类型:Multiturn 转数:14 锥度:Linear 电阻:10 kOhms 电压额定值:250 V 端接类型:Pin 功率额定值:250 mW (1/4 W) 容差:10 % 温度系数:100 PPM / C |
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