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Specifications
Voltage Rating:
30V
Tolerance:
±20%
Power(Watts):
250mW
Resistance:
5kΩ
Mfr. Part #:
JER655HC-502
Package:
Through Hole
Key Attributes
Model Number:
JER655HC-502
Product Description
Product Overview
The JER655HC series Ceramic Trimmer Potentiometer is a high-stability, compact, and high-precision component designed for various electronic applications. It features a rated power of 0.25W, a wide resistance range, and a metal glaze construction. This series offers a linear resistance change characteristic and is suitable for applications requiring precise adjustments.
Product Attributes
- Brand: JER
- Series: JER655HC
- Type: Ceramic Trimmer Potentiometer
- Construction: Metal Glaze
- Resistance Change: Linear (B)
- Packaging: 500 pieces/bag
- Standards: Complies with JIS (Japan Standard)
Technical Specifications
| Parameter | Specification |
|---|---|
| Electrical Characteristics | |
| Rated Resistance | 100 - 2M |
| Tolerance of Rated Resistance | 20% |
| Resistance Taper | B (Linear) |
| Rated Power | 0.25W |
| Maximum Operating Voltage | 30VAC |
| Rotational Noise | 100mV |
| Zero Position Resistance | R 1K: 10 R > 1K: 1%R |
| Physical Characteristics (JER655HC Series) | |
| Total Mechanical Travel | 270 10 |
| Effective Travel | 240 10 |
| Rotational Torque | 3mNm ~ 30mNm |
| Detent Strength | 50mNm |
| Nominal Resistance Chart | |
| Resistance () | Resistance Code |
| 100 | 101 |
| 200 | 201 |
| 500 | 501 |
| 1K (1000) | 102 |
| 2K (2000) | 202 |
| 5K (5000) | 502 |
| 10K (10000) | 103 |
| 20K (20000) | 203 |
| 50K (50000) | 503 |
| 100K (100000) | 104 |
| 200K (200000) | 204 |
| 500K (500000) | 504 |
| 1M (1000000) | 105 |
| Reliability Tests | |
| Test Item | Test Method / Condition |
| Operating Temperature Range | -30 to +85 |
| Rotational Life Test | Resistance change within 10% after 502 cycles at 90% of effective travel, 6 sec/cycle, no load. |
| Temperature Characteristic | Resistance change within 3% after 5 hours at 703, no load. |
| Thermal Cycling | Resistance change within 3% after 5 cycles (-30 (30min) Room Temp/Humidity (15min) 85 (30min) Room Temp/Humidity (15min)), followed by 2 hours at room temp/humidity, no load. |
| Long-term Heat Resistance | Resistance change within 5% after 50010 hours at 703, no load, followed by 2 hours at room temp/humidity. |
| Damp Heat Resistance | Resistance change within 5% after 50010 hours at 402, 90-95% humidity, no load, followed by 5 hours at room temp/humidity. |
| Load Life Test | Resistance change within 5% after 50010 hours of cycling (1.5 hours rated voltage, 0.5 hours off) at 402, 90-95% humidity, followed by 5 hours at room temp/humidity, no load. |
| Solder Heat Resistance | Resistance change within 2% after immersing terminal tips (1.5-2.0mm from tip) in solder bath at 26010 for 30.5 seconds, followed by 1 hour at room temp/humidity. |
| Temperature Coefficient | Within 250PPM/, measured during cycles of 25 (30min) -30 (30min) 25 (30min) 85 (30min), no load. |
| Soldering Conditions | |
| Temperature | 26010 |
| Time | Within 3 seconds (total time) |
| Product Naming Convention | |
| Format | JER 655 H C [Resistance Code] |
| JER | Series Identifier |
| 655 | Model Number |
| H | Mounting Type (e.g., Horizontal) |
| C | Structure (e.g., Dustproof Seal) |
| [Resistance Code] | See Nominal Resistance Chart (e.g., 101 for 100, 102 for 1K) |
| Precautions for Use | |
| Soldering Flux | Ensure flux is fully dry before soldering to prevent quality degradation. Control flux application amount. |
| Cleaning | Do not immerse potentiometers in solvents. Contact manufacturer for cleaning procedures if necessary. |
| Handling | Avoid applying excessive force to terminals, center terminals, or wiper contacts during PCB insertion and assembly to prevent deformation and poor contact. Pay special attention to the wiper area on open-type potentiometers. |
| Storage Environment | Avoid high/low temperatures, high humidity, and corrosive gases. Exercise extra caution for long-term storage. |
| Stacking | Be mindful of the stacking pressure on the products during storage. |
| Inventory Management | Implement a First-In, First-Out (FIFO) system for inventory. |
2512081659_JIERR-JER655HC-502_C52033414.pdf
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