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±20% 500mW 20kΩ Through Hole Trimmer Potentiometers RoHS
Mfr. Part #
JER855VCR-203
Package
Through Hole
Model Number
JER855VCR-203
Product Overview
The JER855VCR series ceramic trimmer potentiometers offer high stability, compact size, and high precision, making them ideal for a wide range of applications. These potentiometers feature a rated power of 0.5 watts, a broad resistance range, and a metal glaze construction. They are designed for reliable performance with a nominal resistance tolerance of 20% and a linear resistance change characteristic.
Product Attributes
Brand: JER
Series: JER855VCR
Type: Ceramic Trimmer Potentiometer
Material: Metal Glaze
Adjustment Type: Linear (B)
Mounting Type: Vertical
Sealing: Dustproof
Standard Packaging: 200 pcs/bag
Standards Compliance: IEC, JIS (B)
Technical Specifications
Parameter
Specification
Electrical Characteristics
Nominal Resistance Range
300 - 2M
Nominal Resistance Tolerance
20%
Resistance Change Characteristic
B (Linear)
Rated Power
0.5W
Maximum Operating Voltage
30VAC
Rotational Noise
100mV
Zero Position Resistance (R 1K)
r01, r03 10
Zero Position Resistance (R > 1K)
r01, r03 < 1%R
Physical Characteristics
Total Mechanical Travel
270 10
Effective Travel
240 10
Rotational Torque
3mNm ~ 30mNm
Stop Strength
50mNm
Reliability
Operating Temperature Range
-30 to +85
Rotational Life (No Load)
Resistance change within 10% after 502 cycles
Temperature Characteristic (No Load)
Resistance change within 3% after 5 hours at 703
Temperature Cycling (No Load)
Resistance change within 3% after 5 cycles
Long-term Heat Resistance (No Load)
Resistance change within 5% after 50010 hours at 703
Damp Heat Resistance (No Load)
Resistance change within 5% after 50010 hours at 402, 90-95% humidity
Load Life Characteristic
Resistance change within 5% after 50010 hours at 402, 90-95% humidity with rated voltage
Solder Heat Resistance
Resistance change within 2% after immersion in solder at 26010 for 30.5 seconds
Temperature Coefficient
Within 250PPM/
Soldering Conditions
Temperature
26010
Time
Within 3 seconds (total time)
Product Naming Rule
JER 855 V C R 102
JER: Series
855: Model
V: Mounting Type (Vertical)
C: Sealing (Dustproof)
R: Adjustment Type (Reverse Adjustment)
102: Resistance Code (e.g., 102 = 1K)
Usage Precautions
Ensure flux is thoroughly dried before soldering to prevent quality degradation. Pay attention to flux application amount.
Do not immerse potentiometers in solvents. Contact manufacturer for cleaning procedures if necessary.
Avoid applying excessive force to terminals, center terminals, or wiper parts during PCB insertion and assembly to prevent deformation and poor contact. Exercise extra caution with open-type potentiometers, especially the wiper area.
Store potentiometers away from high/low temperatures, high humidity, and corrosive gases. Pay special attention to long-term storage.
Be mindful of stacking pressure on products during storage.
Implement a first-in, first-out (FIFO) inventory management system.
Company Profile
Beijing Silk Road Enterprise Management Services Co.,Ltd. is a professional company focus on integrated circuit ic business. Beijing Silk Road will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining an...
Company Profile
Beijing Silk Road Enterprise Management Services Co.,Ltd. is a professional company focus on integrated circuit ic business. Beijing Silk Road will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining an...