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Specifications
Voltage Rating:
30V
Tolerance:
±20%
Power(Watts):
500mW
Resistance:
1kΩ
Mfr. Part #:
JER825VR-102
Package:
Through Hole
Key Attributes
Model Number:
JER825VR-102
Product Description
Product Overview
The JER825VR series ceramic trimmer potentiometer offers high stability, a compact size, and high precision, making it suitable for various electronic applications. This series features a rated power of 0.5 Watts, a wide resistance range, and utilizes a metal-glass glaze construction for enhanced performance and durability. Designed for precise adjustment, these potentiometers are ideal for applications requiring reliable and accurate resistance control.
Product Attributes
- Brand: JER
- Series: JER825VR
- Material: Metal-glass glaze
- Type: Ceramic trimmer potentiometer
- Adjustment Type: Linear (B)
- Standard Packaging: 500 pcs/bag
- Compliance: Meets JIS standard (B)
Technical Specifications
| Parameter Name | Specification |
|---|---|
| Electrical Characteristics | |
| Rated Resistance | 300 - 2M |
| Tolerance of Rated Resistance | 20% |
| Resistance Taper | B (Linear) |
| Rated Power | 0.5W |
| Maximum Operating Voltage | 30VAC |
| Rotational Noise | 100mV |
| Zero Position Resistance (R 1K) | r01, r03 10 |
| Zero Position Resistance (R > 1K) | r01, r03 < 1%R |
| Physical Characteristics | |
| Total Mechanical Travel | 270 10 |
| Effective Travel | 240 10 |
| Rotational Torque | 3mNm ~ 30mNm |
| Detent Strength | 50mNm |
| Reliability | |
| Operating Temperature Range | -30 to +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. |
| Thermal Cycling (No Load) | Resistance change within 3% after 5 cycles of (-30 (30min) -> Room Temp/Humid (15min) -> 85 (30min) -> Room Temp/Humid (15min)) followed by 2 hours at room temp/humid. |
| Long-term Heat Resistance (No Load) | Resistance change within 5% after 50010 hours at 703, followed by 2 hours at room temp/humid. |
| Humidity Resistance (No Load) | Resistance change within 5% after 50010 hours at 402, 90-95% RH, followed by 5 hours at room temp/humid. |
| 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% RH, followed by 5 hours at room temp/humid. |
| Solder Heat Resistance | Resistance change within 2% after immersion in solder at 26010 for 30.5 seconds, followed by 1 hour at room temp/humid. |
| Temperature Coefficient | Within 250PPM/ (tested across 25 -> -30 -> 25 -> 85). |
| Soldering Conditions | |
| Temperature | 26010 |
| Time | Within 3 seconds (total time) |
| Resistance Code Table | |
| 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 |
| Product Naming Convention | |
| Format | JER 825 V R [Resistance Code] |
| JER | Series |
| 825 | Model |
| V | Mounting Type (Vertical) |
| R | Adjustment Type (Reverse) |
| [Resistance Code] | e.g., 101 (100), 102 (1K), 103 (10K) |
Precautions for Use
- When performing immersion soldering, ensure flux is fully dried to prevent quality degradation. Pay attention to the application amount of flux.
- Do not immerse semi-adjustable resistors in solvents. Contact us if cleaning is necessary.
- Avoid applying excessive force to terminals, center terminals, or wiper contacts after insertion into a PCB and assembly. This can cause deformation and lead to poor contact. Exercise particular caution with the wiper section of open-type units.
- Store semi-adjustable resistors away from high/low temperatures, high humidity, and corrosive gases. Pay extra attention to storage conditions for long-term storage.
- When storing, be mindful of the stacking pressure on the products.
- Implement a First-In, First-Out (FIFO) inventory management system for stock items.
2512081659_JIERR-JER825VR-102_C52033426.pdf
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