Product Overview
The JER825V series Ceramic Trimmer Potentiometer offers high stability, a compact size, and high precision. Designed with a metal glaze element, these potentiometers provide a wide resistance range and a rated power of 0.5 Watts. They are suitable for applications requiring precise adjustments in electronic circuits.
Product Attributes
- Brand: JER
- Series: JER825V
- Element Material: Metal Glaze
- Type: Trimmer Potentiometer
- Resistance Change Characteristic: B (Linear)
- Standard Packaging: 200 pcs/bag
- Applicable Standards: JIS (Japan Standard)
Technical Specifications
| Parameter Name | Parameter Index |
|---|---|
| Rated Power | 0.5W |
| Nominal Resistance Range | 300-2M |
| Nominal Resistance Tolerance | 20% |
| Maximum Operating Voltage | 30VAC |
| Wiper Noise | 100mV |
| Zero Position Resistance (R1K) | r01, r03 10 |
| Zero Position Resistance (R1K) | r01, r03 < 1%R |
| Total Mechanical Travel | 27010 |
| Effective Travel | 24010 |
| Rotational Torque | 3mNm ~ 30mNm |
| Stopping Strength | 50mNm |
| Operating Temperature Range | -30+85 |
| Rotary Life (No Load) | Resistance change within 10% after 502 cycles at 90% of effective angle, once every 6 seconds. |
| Temperature Characteristic (No Load) | Resistance change within 3% after 5 hours at 703. |
| Temperature Cycling (No Load) | Resistance change within 3% after 5 cycles of (-30(30min) -> Room Temp/Humid (15min) -> 85(30min) -> Room Temp/Humid (15min)) and 2 hours at room temperature/humidity. |
| Long-term Heat Resistance (No Load) | Resistance change within 5% after 50010 hours at 703 and 2 hours at room temperature/humidity. |
| Damp Heat Resistance (No Load) | Resistance change within 5% after 50010 hours at 402, 90-95% humidity and 5 hours at room temperature/humidity. |
| Load Life Characteristic | Resistance change within 5% after 50010 hours of continuous cycling (1.5 hours rated voltage at 402, 90-95% humidity, then 0.5 hours off) and 5 hours at room temperature/humidity. |
| Solder Heat Resistance | Resistance change within 2% after 30.5 seconds immersion in solder at 26010 (1.5-2.0mm from tip) and 1 hour at room temperature/humidity. |
| Temperature Coefficient | Within 250PPM/ (after placement at 25(30min) -> -30(30min) -> 25(30min) -> 85(30min)). |
| Soldering Condition (Temperature) | 26010 |
| Soldering Condition (Time) | Within 3 seconds (total time) |
Product Naming Convention
JER 825 V 102
- JER: Series Code
- 825: Series
- V: Mounting Style (Vertical)
- 102: Resistance Code (e.g., 102 = 1K)
Nominal 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 |
Notes on Usage
- When performing immersion soldering, ensure flux is completely dried to prevent quality degradation. Pay attention to the amount of flux applied.
- Do not immerse semi-adjustable resistors in solvents. Contact us if cleaning is necessary.
- After inserting into a printed circuit board and assembling, do not apply excessive force to terminals, the center terminal, or the wiper to avoid deformation and poor contact. Exercise particular caution with the wiper section on open-type models.
- Store semi-adjustable resistors away from high/low temperatures, humidity, and corrosive gases. Pay extra attention to long-term storage.
- When storing, be mindful of the stacking pressure on the products.
- Manage inventory using the First-In, First-Out (FIFO) principle.
2512081659_JIERR-JER825V-103_C52033417.pdf
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