Product Overview
The JER805HM series Ceramic Trimmer Potentiometer offers high stability, a compact size, and high precision, making it suitable for various electronic applications. With a rated power of 0.5W and a wide resistance range, these potentiometers feature a metal glaze element and a linear (B) resistance change characteristic. They are designed for reliable performance across a broad operating temperature range and exhibit excellent resistance to environmental factors and mechanical stress.
Product Attributes
- Brand: JER
- Series: JER805HM
- Type: Ceramic Trimmer Potentiometer
- Adjustment Type: Micro-adjustment
- Mounting Style: Horizontal
- Element Material: Metal Glaze
- Resistance Change Characteristic: Linear (B)
- Standard Packaging: 200 pcs/bag
- Certifications: Meets JIS standard (B)
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Series | JER805HM |
| Rated Power | 0.5W |
| Resistance Range | 300 - 2M |
| Resistance Tolerance | 20% |
| Max. Operating Voltage | 30VAC |
| Rotational Noise | 100mV |
| Zero Position Resistance (R1K) | r01, r03 10 |
| Zero Position Resistance (R>1K) | r01, r03 < 1%R |
| Total Mechanical Travel | 270 10 |
| Effective Travel | 240 10 |
| Rotational Torque | 3mNm ~ 30mNm |
| Stop Strength | 50mNm |
| 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 Characteristic | Resistance change within 5% after 50010 hours (402, 90-95% RH, rated voltage) |
| Solder Heat Resistance | Resistance change within 2% after immersion in solder at 26010 for 30.5 seconds |
| Temperature Coefficient | Within 250PPM/ |
| Soldering Condition (Temperature) | 26010 |
| Soldering Condition (Time) | Within 3 seconds (total time) |
Resistance Code Table:
| Resistance () | Code | 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 |
Product Naming Rule:
JER - 805 - H - M - [Resistance Code]
Series - Size - Mounting Style - Adjustment Type - Resistance Code
Precautions for Use:
- Ensure flux is completely dry before soldering to prevent quality degradation.
- Do not immerse the semi-adjustable resistor in solvents. Contact us if cleaning is necessary.
- Avoid applying excessive force to terminals, center terminals, or wiper contacts after insertion into PCBs and assembly, as this can cause deformation and poor contact, especially for open types.
- Store away from high/low temperatures, high humidity, and corrosive gases. Pay special attention to long-term storage.
- Avoid stacking products excessively during storage.
- Implement a First-In, First-Out (FIFO) inventory management system.
2512081700_JIERR-JER805HM-103_C52033439.pdf
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