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Specifications
Voltage Rating:
30V
Tolerance:
±20%
Power(Watts):
250mW
Resistance:
50kΩ
Mfr. Part #:
JER655HC-503
Package:
Through Hole
Key Attributes
Model Number:
JER655HC-503
Product Description
Product Overview
The JER655HC series ceramic trimmer potentiometer offers high stability, a compact size, and high precision, making it suitable for various electronic applications. Featuring a rated power of 0.25W and a wide resistance range, these potentiometers utilize a metal glaze construction for reliable performance. They are designed with a linear resistance change characteristic and are available in a horizontal mounting form factor with dustproof sealing.
Product Attributes
- Brand: JER
- Series: JER655HC
- Construction: Ceramic Trimmer Potentiometer
- Material: Metal Glaze
- Form Factor: Horizontal
- Sealing: Dustproof
- Resistance Change: Linear (B)
- Standard Packaging: 500 pieces/bag
- Compliance: Meets JIS standards (indicated by B)
Technical Specifications
| Parameter Name | Parameter Index | Details |
|---|---|---|
| Electrical Characteristics | ||
| Rated Resistance | 100-2M | |
| Tolerance of Rated Resistance | 20% | |
| Resistance Change Characteristic | B (Linear) | |
| Rated Power | 0.25W | |
| Maximum Operating Voltage | 30VAC | |
| Rotational Noise | 100mV | |
| Zero Position Resistance | R1K: r01, r03 10 | |
| R1K: r01, r03 < 1%R | ||
| Physical Characteristics (JER655HC Series) | ||
| Total Mechanical Travel | 27010 | |
| Effective Travel | 24010 | |
| Rotational Torque | 3mNm ~ 30mNm | |
| Detent Strength | 50mNm | |
| Nominal Resistance Code Table | ||
| Resistance () | Resistance Code | Resistance () |
| 100 | 101 | 20000 (20K) |
| 200 | 201 | 50000 (50K) |
| 500 | 501 | 100000 (100K) |
| 1000 (1K) | 102 | 200000 (200K) |
| 2000 (2K) | 202 | 500000 (500K) |
| 5000 (5K) | 502 | 1000000 (1M) |
| 10000 (10K) | 103 | |
| 20000 (20K) | 203 | |
| 50000 (50K) | 503 | |
| 100000 (100K) | 104 | |
| 200000 (200K) | 204 | |
| 500000 (500K) | 504 | |
| 1000000 (1M) | 105 | |
| Reliability | ||
| Operating Temperature Range | -30+85 | |
| Rotational Life Test (No Load) | Resistance change within 10% after 502 cycles at 90% of effective travel, 1 cycle/6 sec. | |
| 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 for 30min, Room Temp/Humidity for 15min, 85 for 30min, Room Temp/Humidity for 15min), followed by 2 hours at Room Temp/Humidity. | |
| Long-Term Heat Resistance (No Load) | Resistance change within 5% after 50010 hours at 703, followed by 2 hours at Room Temp/Humidity. | |
| Humidity Resistance (No Load) | Resistance change within 5% after 50010 hours at 402, 90-95% RH, followed by 5 hours at Room Temp/Humidity. | |
| Load Life Test | Resistance change within 5% after 50010 hours of cycling (1.5h rated voltage, 0.5h off) at 402, 90-95% RH, followed by 5 hours at Room Temp/Humidity. | |
| Solder Heat Resistance | Resistance change within 2% after 30.5 seconds immersion in solder at 26010, followed by 1 hour at Room Temp/Humidity. | |
| Temperature Coefficient | Within 250PPM/ for temperature changes between 25, -30, and 85. | |
| Soldering Conditions | Temperature: 26010 | Time: Within 3 seconds (total) |
| Product Naming Convention | ||
| JER | 655 | H |
| Series | Model | Mounting Form |
| C | 102 | |
| Structure (Dustproof Seal) | Resistance Code | |
Usage Precautions
- Ensure flux is thoroughly dry before soldering to prevent quality degradation. Control flux application amount.
- Do not immerse semi-adjustable resistors in solvents. Contact us if cleaning is necessary.
- Avoid applying excessive force to terminals, center pins, or wiper parts during PCB insertion and assembly to prevent deformation and poor contact, especially with open-type units.
- Store away from high/low temperatures, high humidity, and corrosive gases. Pay extra attention for long-term storage.
- Be mindful of stacking pressure on products during storage.
- Implement a First-In, First-Out (FIFO) inventory management system.
2512081659_JIERR-JER655HC-503_C52033415.pdf
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