High precision ceramic trimmer potentiometer JIERR JER655HC-103 designed for electronic applications

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Product Description

Product Overview

The JER655HC series ceramic trimmer potentiometer offers high stability, a compact size, and high precision, making it suitable for various electronic applications. Featuring a rated power of 0.25W and a wide resistance range, these potentiometers utilize a metal glaze construction for reliable performance. They are designed for applications requiring precise adjustment and stable resistance characteristics.

Product Attributes

Brand: JER
Series: JER655HC
Type: Ceramic Trimmer Potentiometer
Material: Metal Glaze
Resistance Change Characteristic: B (Linear)
Standard Packaging: 500 pcs/bag
Applicable Standards: JIS (Japan Standard)

Technical Specifications

Electrical Characteristics
Nominal Resistance	100 - 2M
Nominal Resistance Tolerance	20%
Rated Power	0.25W
Maximum Operating Voltage	30VAC
Rotational Noise	100mV
Zero Position Resistance (R 1K)	r01, r03 10
Zero Position Resistance (R > 1K)	r01, r03

Physical Characteristics (JER655HC Series)
Total Mechanical Travel	270 10
Effective Travel	240 10
Rotational Torque	3mNm ~ 30mNm
Detent Strength	50mNm

Nominal Resistance Table
Resistance ()	Resistance Code
100	101
200	201
500	501
1000 (1K)	102
2000 (2K)	202
5000 (5K)	502
10000 (10K)	103
20000 (20K)	203
50000 (50K)	503
100000 (100K)	104
200000 (200K)	204
500000 (500K)	504
1000000 (1M)	105

Reliability
Operating Temperature Range	-30 to +85
Rotational Life Test (No Load)	Resistance change within 10% after 502 cycles at 90% of effective angle.
Temperature Characteristic (No Load)	Resistance change within 3% after 5 hours at 703.
Thermal Cycling (No Load)	Resistance change within 3% after 5 cycles of (-30 for 30min, Room Temp/Humidity for 15min, 85 for 30min, Room Temp/Humidity for 15min), followed by 2 hours at Room Temp/Humidity.
Long-term Heat Resistance (No Load)	Resistance change within 5% after 50010 hours at 703, followed by 2 hours at Room Temp/Humidity.
Damp Heat Resistance (No Load)	Resistance change within 5% after 50010 hours at 402, 90-95% humidity, followed by 5 hours at Room Temp/Humidity.
Load Life Test	Resistance change within 5% after 50010 hours at 402, 90-95% humidity with rated voltage applied for 1.5 hours and cut for 0.5 hours per cycle, followed by 5 hours at Room Temp/Humidity.
Solder Heat Resistance	Resistance change within 2% after immersing terminal tip (1.5-2.0mm from tip) in solder bath at 26010 for 30.5 seconds, followed by 1 hour at Room Temp/Humidity.
Temperature Coefficient	Within 250PPM/ (measured during temperature changes between 25, -30, 25, and 85).

Soldering Conditions
Temperature	26010
Time	Within 3 seconds (total time)

Product Naming Convention
JER	655	H	C	Resistance Code
Series	Model	Mounting Form (Horizontal)	Structure (Dustproof Seal)	(e.g., 101, 102, 103, 104)

Usage Precautions

When performing dip soldering, ensure flux is fully dried to prevent quality degradation. Pay attention to the flux application amount.
Do not immerse semi-adjustable resistors in solvents. Contact us if cleaning is necessary.
Avoid applying excessive force to terminals, center terminals, or sliders during PCB insertion and assembly to prevent deformation and contact issues. Exercise extra caution with open-type models, particularly around the slider area.
Store semi-adjustable resistors away from high/low temperatures, high humidity, and corrosive gases. Pay extra attention to long-term storage conditions.
Be mindful of stacking pressure on products during storage.
Implement a First-In, First-Out (FIFO) system for inventory management.