High Precision Ceramic Trimmer Potentiometer JIERR JER825V-102 Featuring Metal Glaze Resistive Element

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Product Description

Product Overview

The JER825V series Ceramic Trimmer Potentiometer is a high-stability, compact, and high-precision electronic component designed for precise resistance adjustments. Featuring a metal glaze resistive element, it offers a wide resistance range and a rated power of 0.5 Watts. Its reliable electrical and physical characteristics make it suitable for various electronic circuit applications requiring fine-tuning of resistance values.

Product Attributes

Brand: JER
Series: JER825V
Resistive Element Material: Metal Glaze
Type: Trimmer Potentiometer
Construction: Ceramic Base
Packaging: 200 pcs/bag

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
Physical Characteristics
Total Mechanical Travel	27010
Effective Travel	24010
Rotational Torque	3mNm ~ 30mNm
Detent Strength	50mNm
Nominal Resistance Code 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 Test Items
Operating Temperature Range	-30+85
Rotational Life Test (No Load)	Resistance change within 10% after 502 cycles at 90% of effective travel, 1 cycle every 6 seconds.
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/Humid for 15min, 85 for 30min, Room Temp/Humid for 15min) and 2 hours at Room Temp/Humid.
Long-term Heat Resistance (No Load)	Resistance change within 5% after 50010 hours at 703 and 2 hours at Room Temp/Humid.
Damp Heat Resistance (No Load)	Resistance change within 5% after 50010 hours at 402, 90-95% humidity and 5 hours at Room Temp/Humid.
Load Life Test	Resistance change within 5% after 50010 hours of continuous cycling (1.5 hours rated voltage, 0.5 hours cut-off) at 402, 90-95% humidity, and 5 hours at Room Temp/Humid.
Soldering Heat Resistance	Resistance change within 2% after 30.5 seconds immersion in solder at 26010 and 1 hour at Room Temp/Humid.
Temperature Coefficient	Within 250PPM/ for temperature cycles of 25 (30min) -30 (30min) 25 (30min) 85 (30min) at no load.
Soldering Conditions	Temperature: 26010; Time: Within 3 seconds (total time).
Product Naming Rule
Format	JER 825 V [Resistance Code]
JER	Series
825	Model
V	Mounting Type (Vertical)
[Resistance Code]	Resistance Code (e.g., 101 for 100, 102 for 1K)
Usage Precautions
A. Ensure flux is completely dry before soldering to prevent quality degradation. Pay attention to flux application amount.
B. Do not immerse trimmer potentiometers in solvents. Contact us if cleaning is necessary.
C. Avoid applying excessive force to terminals, sliders, or wiper contacts during PCB insertion and assembly to prevent deformation and poor contact. Exercise extra caution with the wiper mechanism on open-type models.
D. Store away from high/low temperatures, high humidity, and corrosive gases. Pay special attention to long-term storage.
E. Be mindful of stacking pressure on products during storage.
F. Implement a First-In, First-Out (FIFO) inventory management system.
Standard Compliance
Standard Name	Linear Type
Old Ministry Standard	X
IEC Standard
Japanese Standard (JIS)	B