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Ceramic trimmer potentiometer JIERR JER855VCH-104 featuring linear resistance and metal glaze element

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Ceramic trimmer potentiometer JIERR JER855VCH-104 featuring linear resistance and metal glaze element

Voltage Rating : 30V

Tolerance : ±20%

Power(Watts) : 500mW

Resistance : 100kΩ

Description : ±20% 500mW 100kΩ Through Hole Trimmer Potentiometers RoHS

Mfr. Part # : JER855VCH-104

Model Number : JER855VCH-104

Package : Through Hole

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Product Overview

The JER855VCH series ceramic trimmer potentiometers are designed for high stability, compact size, and precise adjustments. Featuring a metal glaze element and a rated power of 0.5 watts, these potentiometers offer a wide resistance range and a linear (B) resistance change characteristic. They are suitable for applications requiring reliable and accurate resistance trimming. The series is available in various configurations to meet diverse mounting and operational needs.

Product Attributes

Brand: JER
Series: JER855VCH
Element Material: Metal Glaze
Construction: Ceramic Trimmer Potentiometer
Standard Packaging: 200 pcs/bag
Standards Compliance: JIS (B)

Technical Specifications

Category	Specification	Details
Electrical Characteristics	Rated Power	0.5W
	Resistance Range	300 - 2M
	Resistance Tolerance	20%
	Resistance Change Characteristic	B (Linear)
	Max. Operating Voltage	30VAC
	Wiper Noise	100mV
	Zero Position Resistance	R 1K: r01, r03 10 R > 1K: r01, r03 < 1%R
Physical Characteristics	Total Mechanical Travel	270 10
	Effective Travel	240 10
	Rotational Torque	3 mNm ~ 30 mNm
	Stop Strength	50 mNm
	Standard Packaging	200 pcs/bag
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% RH
	Load Life	Resistance change within 5% after 50010 hours at 402, 90-95% RH with rated voltage
Solder Heat Resistance	Resistance change within 2% after 1 hour at room temperature following 30.5 seconds immersion in 26010 solder bath
Temperature Coefficient	Within 250 PPM/
Soldering Conditions	Temperature: 26010, Time: 3 seconds (total)
Product Naming Rule	Series	JER
	Model	855
	Mounting Style	V (Vertical)
	Structure	C (Dustproof Sealed)
	Knob	H (Long Knob)
Resistance Code	e.g., 102 (1K)	(See Resistance Code Table)

Resistance Code Table

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

Usage Precautions

When performing dip soldering, ensure flux is completely dry to prevent quality degradation. Pay attention to the flux application amount.
Do not immerse the trimmer potentiometer in solvents. Contact us if cleaning is necessary.
Avoid applying excessive force to terminals, center terminals, or wiper elements during PCB insertion and assembly to prevent deformation and poor contact. Exercise particular caution with the wiper area on open-type models.
Store trimmer potentiometers away from high/low temperatures, high humidity, and corrosive gases. Exercise extra caution for long-term storage.
When storing, be mindful of the stacking weight on the products.
Implement a First-In, First-Out (FIFO) inventory management system for stored items.

2512081700_JIERR-JER855VCH-104_C52033436.pdf

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