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Specifications
Voltage Rating:
30V
Tolerance:
±20%
Power(Watts):
250mW
Resistance:
200kΩ
Mfr. Part #:
JER805HM-204
Package:
Through Hole
Key Attributes
Model Number:
JER805HM-204
Product Description
Product Overview
The JER805HM 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 0.5W and a wide resistance range, these potentiometers utilize a metal glaze construction for reliable performance. They are designed with a linear (B) resistance change characteristic and are ideal for applications requiring precise adjustments.
Product Attributes
- Brand: JER
- Series: JER805HM
- Type: Ceramic Trimmer Potentiometer
- Adjustment Type: Micro Adjustment
- Mounting Style: Horizontal
- Material: Metal Glaze
- Standard Packaging: 200 pcs/bag
- Compliance: Meets JIS standards (B)
Technical Specifications
| Parameter | Specification |
|---|---|
| Electrical Characteristics | |
| Nominal Resistance | 300 - 2M |
| Tolerance of Nominal Resistance | 20% |
| Resistance Taper | B (Linear) |
| Rated Power | 0.5W |
| Max. Operating Voltage | 30VAC |
| Rotational Noise | 100mV |
| Zero-State Resistance | R1K: r01, r03 10; R1K: r01, r03 1%R |
| Physical Characteristics | |
| Total Mechanical Travel | 27010 |
| Effective Travel | 24010 |
| Rotational Torque | 3mNm ~ 30mNm |
| Detent Strength | 50mNm |
| Nominal Resistance Code Table | |
| Resistance () | Resistance Code |
| 100 | 101 |
| 200 | 201 |
| 500 | 501 |
| 1K | 102 |
| 2K | 202 |
| 5K | 502 |
| 10K | 103 |
| 20K | 203 |
| 50K | 503 |
| 100K | 104 |
| 200K | 204 |
| 500K | 504 |
| 1M | 105 |
| Reliability | |
| Test Item | Test Method & Specification |
| Operating Temperature Range | -30+85 |
| Rotational Life Test | Resistance change within 10% after 502 cycles at 90% of effective travel, 1 cycle/6 sec. (no load) |
| Temperature Characteristic | Resistance change within 3% after 5 hours at 703 (no load) |
| Temperature Cycling | Resistance change within 3% after 5 cycles (-30 to 85) and 2 hours stabilization at room temperature/humidity (no load) |
| Heat Resistance (Long Term) | Resistance change within 5% after 50010 hours at 703 and 2 hours stabilization at room temperature/humidity (no load) |
| Damp Heat Resistance | Resistance change within 5% after 50010 hours at 402, 90-95% RH and 5 hours stabilization at room temperature/humidity (no load) |
| Load Life Test | Resistance change within 5% after 50010 hours of cycling (1.5h rated voltage, 0.5h off) at 402, 90-95% RH, and 5 hours stabilization at room temperature/humidity (no load) |
| Soldering Heat Resistance | Resistance change within 2% after 1 hour stabilization at room temperature/humidity, following 30.5 sec immersion in solder at 26010 (1.5-2.0mm from tip) |
| Temperature Coefficient | Within 250PPM/ (after placement at 25, -30, 25, 85 for 30 min each) |
| Soldering Conditions | 26010, within 3 seconds (total time) |
| Product Naming Convention | |
| Format | JER 805 H M [Resistance Code] |
| JER | Series |
| 805 | Model |
| H | Mounting Style (Horizontal) |
| M | Adjustment Type (Micro Adjustment) |
| [Resistance Code] | e.g., 101 (100), 102 (1K), 103 (10K), 104 (100K) |
| Usage Precautions | |
| Soldering | Ensure flux is thoroughly dried before soldering. Be mindful of flux application amount. |
| Cleaning | Avoid immersing in solvents. Contact manufacturer for cleaning procedures if necessary. |
| Handling | Do not apply excessive force to terminals, center terminals, or sliders after PCB insertion and assembly to prevent deformation and poor contact, especially on open-type models. |
| Storage | Avoid high/low temperatures, high humidity, and corrosive gas environments. Pay extra attention for long-term storage. Avoid stacking products excessively. Implement FIFO (First-In, First-Out) inventory management. |
2512081700_JIERR-JER805HM-204_C52033443.pdf
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