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JIERR JER805HM 503 ceramic trimmer potentiometer with linear resistance variation and compact design

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JIERR JER805HM 503 ceramic trimmer potentiometer with linear resistance variation and compact design

Voltage Rating : 30V

Tolerance : ±20%

Power(Watts) : 250mW

Resistance : 50kΩ

Description : ±20% 250mW 50kΩ Through Hole Trimmer Potentiometers RoHS

Mfr. Part # : JER805HM-503

Model Number : JER805HM-503

Package : Through Hole

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Product Overview

The JER805HM series ceramic trimmer potentiometers offer high stability, a compact size, and high precision, making them suitable for various electronic applications. These potentiometers feature a rated power of 0.5W, a wide resistance range, and are constructed with a metal glaze material. They are designed for reliable performance with excellent resistance to temperature fluctuations and mechanical stress.

Product Attributes

Brand: JER
Series: JER805HM
Type: Ceramic trimmer potentiometer
Material: Metal glaze
Adjustment Type: Micro adjustment
Mounting Style: Horizontal
Standard Packaging: 200 pcs/bag
Compliance: Meets JIS standards (B)

Technical Specifications

Parameter Name	Parameter Index
Electrical Characteristics
Nominal Resistance	300 - 2M
Tolerance of Nominal Resistance	20%
Resistance Variation Characteristic	B (Linear)
Rated Power	0.5W
Maximum Operating Voltage	30VAC
Wiper Noise	100mV
Zero Position Resistance	R1K: r01, r03 10; R1K: r01, r03 < 1%R
Physical Characteristics
Total Mechanical Travel	270 10
Effective Travel	240 10
Rotational Torque	3mNm ~ 30mNm
Detent Strength	50mNm
Reliability
Operating Temperature Range	-30 ~ +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
Heat Resistance (Long Term, 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 Characteristic	Resistance change within 5% after 50010 hours under rated voltage at 402, 90-95% RH
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 250PPM/
Soldering Conditions
Temperature	26010
Time	Within 3 seconds (total time)
Product Naming Convention
Format	JER - 805 - H - M - [Resistance Code]
JER	Series
805	Model
H	Mounting Style (Horizontal)
M	Adjustment Type (Micro adjustment)
Resistance Code	e.g., 101 (100), 102 (1K), 103 (10K)

Usage Precautions

Ensure flux is completely dry before soldering to prevent quality degradation. Pay attention to the amount of flux applied.
Do not immerse the trimmer potentiometer in solvents. Contact us if cleaning is necessary.
Avoid applying excessive force to terminals, center terminals, or wiper contacts during PCB insertion and assembly to prevent deformation and poor contact, especially with open-type designs.
Store away from high/low temperatures, high humidity, and corrosive gases. Exercise extra caution for long-term storage.
Be mindful of the stacking pressure on the products during storage.
Implement a First-In, First-Out (FIFO) inventory management system.

2512081700_JIERR-JER805HM-503_C52033441.pdf

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