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Specifications
Voltage Rating:
30V
Tolerance:
±20%
Power(Watts):
250mW
Resistance:
20kΩ
Mfr. Part #:
JER655HC-203
Package:
Through Hole
Key Attributes
Model Number:
JER655HC-203
Product Description
Product Overview
The JER655HC series ceramic trimmer potentiometer is designed for high stability, compact size, and high precision applications. Featuring a rated power of 0.25W and a wide resistance range, these potentiometers utilize a metal glaze construction. They are suitable for various electronic circuits requiring precise resistance adjustments.
Product Attributes
- Brand: JER
- Series: JER655HC
- Construction: Ceramic Trimmer Potentiometer
- Material: Metal Glaze
- Resistance Change Characteristic: B (Linear)
- Packaging: 500 pcs/bag
- Standards: Meets Japanese Standard (JIS)
Technical Specifications
| Parameter Name | Specification |
|---|---|
| Rated Power | 0.25W |
| Resistance Range | 100 - 2M |
| 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) | 10% within 502 cycles |
| Temperature Characteristic (No Load) | 3% within 5 hours at 703 |
| Temperature Cycling (No Load) | 3% after 5 cycles and 2 hours at room temp. |
| Long-term Heat Resistance (No Load) | 5% after 50010 hours at 703 |
| Damp Heat Resistance (No Load) | 5% after 50010 hours at 402, 90-95% RH |
| Load Life (50010 hours) | 5% after 50010 hours at 402, 90-95% RH with rated voltage |
| Solder Heat Resistance | 2% after 1 hour at room temp. after 30.5 sec. immersion in 26010 solder bath |
| Temperature Coefficient | 250PPM/ within |
| Soldering Condition Temperature | 26010 |
| Soldering Condition Time | Within 3 seconds (total time) |
Product Naming Rule
JER 655 H C 102
- JER: Series
- 655: Model
- H: Mounting Type (Horizontal)
- C: Structure (Dustproof Seal)
- 102: Resistance Code (e.g., 102 = 1K)
Usage Precautions
- Ensure flux is fully dry before soldering to prevent quality degradation.
- Do not immerse the semi-adjustable resistor in solvents. Contact manufacturer for cleaning instructions.
- Avoid applying excessive force to terminals, center pins, or wipers during PCB insertion and assembly to prevent deformation and poor contact. Pay special attention to the wiper area of open-type models.
- Store away from high/low temperatures, humidity, and corrosive gases. Take extra care for long-term storage.
- Avoid stacking products excessively during storage.
- Implement a First-In, First-Out (FIFO) inventory management system.
2512081659_JIERR-JER655HC-203_C52033411.pdf
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