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| 型号： | PV32H101A01B00 |
| 厂商： | Murata Electronics North America |
| 文件页数： | 47/55页 |
| 文件大小： | 0K |
| 描述： | TRIMMER 100 OHM 0.5W TH |
| 标准包装： | 100 |
| 系列： | PV32 |
| 电阻（欧姆）： | 100 |
| 功率（瓦特）： | 0.5W，1/2W |
| 容差： | ±20% |
| 温度系数： | ±100ppm/°C |
| 匝数： | 单路 |
| 调节型： | 顶部调节 |
| 电阻材料： | 陶瓷 |
| 安装类型： | 通孔 |
| 端接类型： | PC 引脚 |
| 包装： | 散装 |
| 尺寸/尺寸： | 圆形 - 0.260" 直径 x 0.181" H（6.60mm x 4.60mm） |
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! Note ? Please read rating and ! CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
? This catalog has only typical speci?cations. Therefore, please approve our product speci?cations or transact the approval sheet for product speci?cations before ordering.
R50E.pdf
Jul.23,2012
SMD Open Type (PVZ2/A2/Z3)/SMD Sealed Type (PVM4A_C01 Series) Speci?cations and Test Methods
The tests and measurements should be conducted under the conditions of 15 to 35°C of temperature, 25 to 75% of relative humidity and 86 to 106 kpa of
atmospheric pressure unless otherwise specified. If questionable results occur that have been measured in accordance with the above-mentioned
conditions, the tests and measurements should be conducted under the conditions of 25±2°C of temperature, 45 to 55% of relative humidity and 86 to
106 kpa of atmospheric pressure.
No.
1
Item
Residual Resistance
Test Methods
Position the contact arm at the extreme counterclockwise limit of mechanical travel and measure the resistance
between the contact arm and the corresponding end terminal. Then, position the contact arm at the extreme
clockwise limit of mechanical travel and measure the resistance between the contact arm and the corresponding end
terminal. During this test, take suitable precautions to ensure that the rated current of the resistance element is not
exceeded.
Contact resistance variation should be measured with the measuring circuit shown below, or its equivalent. The
operating wiper should be rotated in both directions through 90% of the actual effective-electrical travel for a total of
6 cycles.
The rate of rotation of the operating wiper should be such that the wiper completes 1 count in determining whether or
not a contact resistance variation is observed at least twice in the same location. The test current should follow the
value given in Table 2 unless otherwise limited by the power rating.
· PVZ/PVA2
#1
Rx
#3
Oscilloscope
Calibration
resistance
2
Contact Resistance
Standard Total
Resistance R (ohm)
100 V R F 10k
10k V R F 100k
100k V R
Test Current
20mA max.
1mA max.
100μA max.
Constant Current #2
Source
(Test current
shown in Table 2)
Rx : Trimmer Potentiometer
Oscilloscope bandwidth: 100Hz to 50kHz
AC
Amplifier
vertical
entry
Resistance R
· PVM4A ppp C01
Standard Total
Test
Current
(ohm)
Standard Total
Resistance R
(ohm)
Test
Current
Figure 1: CRV measuring circuit
R V 100
100 F R F 500
500 V R F 1k
1k V R F 2k
2k V R F 50k
20mA
10mA
4mA
2mA
1mA
50k V R F 200k
200k V R F 1M
1M V R F 2M
2M V R
200μA
100μA
50μA
30μA
Table 2: Test current for CRV
The wiper contact point should be preset at about 50% position of effective rotational angle. After that, the
3
4
5
6
Humidity Exposure
High Temperature
Exposure
Humidity Load Life
Load Life
potentiometer should be placed in a chamber at 40±2°C and 90 - 95% without loading for 500±12 hours.
The resistance value should be measured after keeping the potentiometer in a room for 5±1/6 hours.
The wiper contact point should be preset at about 50% position of effective rotational angle. After that, the
potentiometer should be placed in a chamber at 70±2°C without loading for 500±12 hours. The resistance value
should be measured after keeping the potentiometer in a room for 1.5±1/6 hours.
The wiper contact point should be preset at about 50% position of effective rotational angle. After that, the
potentiometer should be placed in a chamber at 40±2°C and 90 - 95% with loading the 1/2 rated voltage between
#1 and #2 terminals, intermittently 1.5 hours ON and 0.5 hours OFF for 1000±12 hours.
The resistance value should be measured after keeping the potentiometer in a room for 5±1/6 hours.
The wiper contact point should be preset at about 50% position of effective rotational angle. After that, the
potentiometer should be placed in a chamber at 70±2°C (50±2°C for PVZ) with loading the 1/2 rated voltage
between #1 and #2 terminals, intermittently 1.5 hours ON and 0.5 hours OFF for 1000±12 hours. The resistance
value should be measured after keeping the potentiometer in a room for 1 to 2 hours.
The wiper contact point should be preset at about 50% position of effective rotational angle. After that, the
potentiometer should be subjected to Table 3, Table 4 temperature for 5 cycles. The resistance value should be
measured after keeping the potentiometer in a room for 1 to 2 hours.
7
Temperature Cycle
Sequence
1
2
3
4
Sequence
1
2
3
4
Temp. (°C)
-25±3
+25±2
+85±3
+25±2
Temp. (°C)
-55±3
+25±2 +125±3 +25±2
Time (min.)
30±3
10 max.
30±3
10 max.
Time (min.)
30±3
10 max.
30±3
10 max.
Table 3: PVZ
Table 4: PVA2/PVM4A --- C01
The trimmer potentiometer should be subjected to each of the following temperatures (see Table 5, Table 6) for 30
to 40 minutes. The resistance value should be measured in the chamber.
TCR=
R 2 – R 1
R 1 (T 2 – T 1 )
Z 10 6 (ppm/°C)
8
Temperature Coefficient of
Resistance
T 1 : Reference temperature in degrees celsius
R 1 : Resistance at reference temperature in ohm
T 2 : Test temperature in degrees celsius
R 2 : Resistance at test temperature in ohm
Sequence
1*
2
3*
4
Sequence
1*
2
3*
4
Temp. (°C)
+25±2
-25±3
+25±2
+85±3
Temp. (°C)
+25±2
-55±3
+25±2 +125±3
Table 5: PVZ
Table 6: PVA2/PVM4A --- C01
Note*: Norm temp.
The wiper should be rotated over 90% of the effective rotational angle without loading at a speed of 10 cycles per
9
Rotational Life
minute, for 10 cycles continuously. The resistance value should be measured after keeping the potentiometer in a
room for 10±5 minutes.
45
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