PVG5A502A01R00

No.
Item Test Methods
Total Resistance1
Measure total resistance between the resistance element and terminals (#1 and #3) with the contact arm positioned
against a stop. The positioning of the contact arm and terminal shall be the same for subsequent total resistance
measurements on the same device. Use the test voltage specified in Table-1 for total resistance measurements.
This voltage shall be used for all subsequent total resistance measurements.
Specifications and Test Methods
Residual Resistance2
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 clock-
wise limit of mechanical travel and measure the resistance between the contact arm and the corresponding end ter-
minal. During this test, take suitable precautions to ensure that the rated current of the resistance element is not
exceeded.
Contact Resistance
Variation
3
4
1
5
Rx
#
1
#
2
#
3
Constant Current Source not to
Exceed Rating of Unit Being
Proofreaded
Resistance
AC
Amplifier
Oscilloscope
Oscilloscope bandwidth :100Hz to 50kHz
Rx : Trimmer Potentiometer
Figure-1 CRV measuring circuit
Contact resistance variation shall be measured with the measuring circuit shown in Figure-1, or its equivalent. The
adjustment rotor (screw) shall be rotated in both directions through 90% of the actual effective-electrical rotational
angle(number of turns) for a total of 6 cycles. Only the last 3 cycles shall count in determining whether or not a con-
tact resistance variation is observed at least twice in the same location, exclusive of the roll-on or roll-off points
where the contact arm moves from the termination, on or off, the resistance element. The rate of rotation of the
adjustment rotor (screw) shall be such that the adjustment rotor (screw) completes 1 cycle for 5 seconds minimum to
2 minutes maximum. The test current used shall follow the value given in Table-2 unless otherwise limited by power
rating.
Standard total resistance
R (ohm)
RV100
100FRF500
500VRF1k
1kVRF2k
2kVRF50k
50kVRF200k
200kVRF1M
1MVRF2M
2MVR
20mA
Test current
Table-2 Test current for CRV
10mA
4mA
Temperature Coefficient of
Resistance
The trimmer potentiometer shall be subjected to the following each temperature (see Table-3) for 30-45 minutes.
Temperature coefficient of resistance shall be applied to the following formula.
TCR= Z 10
6
(ppm/°C)
T
1 : Reference temperature in degrees celsius
T
2 : Test temperature in degrees celsius
R
1 : Resistance at reference temperature ohm
R
2 : Resistance at test temperature in ohm
R
2 – R1
R1 (T2 – T1)
Voltage Setting
Stability
The wiper shall be set at approximately 40% of the actual effective-electrical rotational angle (number of turns). An
adequate DC test potential shall be applied between the terminal #1 and the terminal #3. The voltage between the
terminal #1 and the terminal #3, and the voltage between the terminal #1 and the terminal #2, shall be measured
and applied to the following formula.
Voltage setting stability=
(
)
Z100 (%)
e : Before test
(The voltage between the terminal #1 and the terminal #2)
e': After test
(The voltage between the terminal #1 and the terminal #2)
E: The voltage between the terminal #1 and the terminal #3
e
E
e'
E
The following describes trimmer potentiometer testing conducted by Murata Manufacturing Co., Ltd. in accordance with MIL-R-22097 (Military specification
for variable resistors, non-wirewound) and MIL-STD-202 (Test methods for electronic and electrical component parts).
2mA
1mA
200µA
100µA
50µA
30µA
e
#2
#1
#3
E
Figure-2
Total resistance,
Nominal (ohm)
10VRV100
100FRV1k
1kFRV10k
10kFRV100k
100kFR
1.0
Maximum Test
Voltage (V)
Table-1 Total resistance test voltage
3.0
10.0
30.0
100.0
Sequence
Temperature(°C) +25
1*
Table-3 Test temperatures
-15
2
3
Min. operating
temperature
+25
4*
Note) * : Reference temperature
+65
5
6
Max. operating
temperature
Continued on the following page.
SMD Sealed Type/Lead Sealed Type Specifications and Test Methods
72
9
!Note
• Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specification or transact the approval sheet for product specification before ordering.
Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this PDF catalog to prevent smoking and/or burning, etc.
This catalog has only typical specifications. Therefore, you are requested to approve our product specification or to transact the approval sheet for product specificaion before ordering.
!Note
R50E12.pdf 02.9.5
No.
Item Test Methods
Temperature Cycle6
The trimmer potentiometer shall be subjected to Table-4 temperature for 5 cycles. The trimmer potentiometer shall
be removed from the chamber, and maintained at a temperature of 25±5°C for 1~2 hours.
Specifications and Test Methods
Humidity7
1) PVC6, PV12, PV32, PV34 PVM4A---B01series
The trimmer potentiometer shall be placed in a chamber at a temperature of 40±2°C and a humidity of 90~95% with-
out loading for 250±8 hours. The trimmer potentiometer shall be removed from the chamber, and maintained at a
temperature of 25±5°C for 5±1/6 hours.
2) PVF2series
The trimmer potentiometer shall be placed in a chamber at 60±2°C and 90~95% without loading for 1000±12 hours.
The trimmer potentiometer shall be removed from the chamber, and maintained at a temperature of 25±5°C for
5±1/6 hours
2) PVG3, PVG5, PV01, PV22, PV23, PV36, PV37series
The trimmer potentiometer shall be subjected Figure-3 the programmed humidity environment for 10 cycle. The trim-
mer potentiometer shall be removed from the chamber, and maintained at a temperature of 25±5°C for 5±1/2 hours.
1
Vibration8
1) PV-- series
The trimmer potentiometer shall be vibrated throughout the frequency range at the 20G level. A complete frequency
range, 10Hz to 2000Hz and back, shall be made within 15 minutes for a total of 4 sweeps in each of the three axis
direction for a total of 12 sweeps.
2) PVF2 series
The trimmer potentiometer shall be subjected to vibration at 0.3 inch amplitude. The frequency shall be varied uni-
formly between the approximate limits of 10 Hz and 55Hz. This motion shall be applied for preiod of 2 hours in each
of 3 mutually perpendicular direction (total of 6 hours).
Sequence
Temp.
(°C)
PV-- series
PV22 series
PVF2 series
1
Table-4 One cycle of temperature cycle.
-55±3
-25±3
2
+25±2
Time (min.) 30 5 max.
3
+125±3
+150±3
+60±3
30
4
+25±2
5 max.
Continued from the preceding page.
INITIAL CONDITIONING
IN A DRY OVEN
24 HOURS
INITIAL MEASUREMENTS
AS SPECIFIED IN 3.2
CIRCULATION OF CONDITIONING AIR SHALL
BE AT A MINIMUM CUBIC RATE PER MINUTE
EQUIVALENT TO 5 TIMES THE VOLUME OF
THE CHAMBER
22 23 242120191817161514131211109876543210
70
65
60
55
50
45
40
35
30
25
20
15
10
5
-5
-10
0
ONE CYCLE 24 HOURS. REPEAT AS SPECIFIED IN 3.3
PRIOR TO FIRST CYCLE
UNLESS OTHERWISE
SPECIFIED
STEP 7STEP 6STEP 5STEP 4STEP 3STEP 2STEP 1
UNLESS OTHERWISE SPECIFIED
TEMPERATURE TOLERANCE IS,
±2°C AT ALL POINTS WITHIN THE
CHAMBER EXCEPT THE IMMEDIATE
VICINITY OF THE SPECIMENS AND
THE CHAMBER SURFACES
STEP 7a
STEPS 7a AND 7b PERFORMED DURING ANY
5 OF THE FIRST 9 CYCLES. HUMIDITY
UNCONTROLLED DURING STEPS 7a AND 7b
ONLY
VOLTAGE APPLIED AS SPECIFIED IN 3.5
STEP 7b
END OF FINAL CYCLE
MEASUREMENTS AS
SPECIFIED IN 3.6
+10°C
-2°C
HUMIDITY
UNCONTROLLED
RATE OF CHANGE OF TEMPERATURE IS UNSPECIFIED.
HOWEVER, SPECIMENS SHALL NOT BE SUBJECTED TO
RADIANT HEAT FROM CHAMBER-CONDITIONING
PROCESSES
90-98%RH
80-98%RH
90-98%RH
80-98%RH
90-98%RH
TEMPERTURE (DEGREES CELSIUS)
MIL-STD-202 METHOD 106
Figure-3
Shock9
1) PV-- series
The trimmer potentiometer shall be shocked at the 100G (50G for PV22 and PV23series) level and shall be subject-
ed to 4 shocks in each of the three axis direction for a total of 12 shocks.
2) PVM4A---B01series
The trimmer potentiometer shall be shocked at the 100G level and shall be subjected to 3 shocks in each of the six
axis direction for a total of 18 shocks.
Temperature Road Life10
Full rated continuous working voltage not exceeding the maximum rated voltage shall be applied intermittently
between the terminal #1 and the terminal #3 of the trimmer potentiometer, 1.5 hours on and 0.5 hours off, for a total
of 1000±12 hours, at a temperature of 70±2°C (85±2°C for PV01 and PV37series, 50±2°C for PVF2series). The trim-
mer potentiometer shall be removed from the chamber, and maintained at a temperature of 25±5°C for 1 to 2 hours.
High Temperature Exposure
(Except for PVF2)
11
The trimmer potentiometer shall be placed in a camber at a temperature of 125±3°C (150±3°C for PV12series)
250±8 hours without loading. The trimmer potentiometer shall be removed from the camber, and maintained at a
temperature of 25±5°C for 1 to 2 hours.
Low Temperature Exposure
(Except for PVF2 and
PVM4A---B01)
12
The trimmer potentiometer shall be placed in a camber at a temperature of -55±3°C for 1 hours without loading. Full
rated continuous working voltage not exceeding the maximum rated voltage shall be applied for 45 minutes. The
trimmer potentiometer shall be removed from the chamber, and maintained at a temperature of 25±5°C for approxi-
mately 24 hours.
Continued on the following page.
SMD Sealed Type/Lead Sealed Type Specifications and Test Methods
73
9
!Note
• Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specification or transact the approval sheet for product specification before ordering.
Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this PDF catalog to prevent smoking and/or burning, etc.
This catalog has only typical specifications. Therefore, you are requested to approve our product specification or to transact the approval sheet for product specificaion before ordering.
!Note
R50E12.pdf 02.9.5
Specifications and Test Methods
Resistor 1
End Terminal End Terminal
Resistor 2
End TerminalEnd Terminal
DC supply
Figure-4
No.
Item Test Methods
Low Temperature Operation
(Only for PVF2 and
PVM4A---B01)
13
The trimmer potentiometer shall be placed in a camber at a temperature of -25±3°C (-55±3°C for PVM4A---
B01series) 48±4 hours without loading. The trimmer potentiometer shall be removed from the chamber, and main-
tained at a temperature of 25±5°C for 5±1/6 hours
Continued from the preceding page.
Rotational Life14
1)PV-- series
Full rated continuous working voltage not exceeding the maximum rated voltage shall be applied with the circuit
shown in the figure. The adjustment rotor (screw) shall be continuously cycled through not less than 90% of effec-
tive-electrical rotational angle (number of turns), at the rate of 1 cycle for 5 seconds minimum to 2.5 a minutes maxi-
mum for total of 200 cycles.
2) PVG3, PVG5series
The adjustment rotor (screw) shall be continuously cycled though not less than 90% of effective- electrical rotational
angle (number of turns), at the rate of 1 cycle for 5 seconds minimum to 2.5 minutes maximum for a total of 50 (100
for PVG5) cycles, without loading.
3) PVF2, PVM4A---B01series
The wiper shall be rotated over 90% of the effective rotational angle without loading at a speed of 10 cycles per
minute, for 100 cycles continuously.
SMD Sealed Type/Lead Sealed Type Specifications and Test Methods
74
9
!Note
• Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specification or transact the approval sheet for product specification before ordering.
Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this PDF catalog to prevent smoking and/or burning, etc.
This catalog has only typical specifications. Therefore, you are requested to approve our product specification or to transact the approval sheet for product specificaion before ordering.
!Note
R50E12.pdf 02.9.5

PVG5A502A01R00

Mfr. #:
Manufacturer:
Bourns
Description:
TRIMMER 5K OHM 0.25W J LEAD TOP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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