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Specifications
Tolerance:
±25%
Temperature Coefficient:
±250ppm/℃
Power(Watts):
150mW
Resistance:
300Ω
Mfr. Part #:
VGF39NCHXT-B301
Package:
SMD-3P,3.8x3.7mm
Key Attributes
Model Number:
VGF39NCHXT-B301
Product Description
HOKURIKU ELECTRIC INDUSTRY CO., LTD. - VGF39NCHXT HDK Type Variable Resistor
The VGF39NCHXT is a 3mm chip trimmer potentiometer featuring a Metal-Glaze Resistor, designed for general electronic equipment applications. This component offers a reliable and precise way to adjust resistance in various electronic circuits.
Product Attributes
- Brand: HOKURIKU ELECTRIC INDUSTRY CO., LTD.
- Type: HDK VGF39NCHXT
- Origin: CHINA (DANDONG NEW LAND ELECTRONIC Co., Ltd.)
- Certifications: RoHS Directives compliant, Halogen Free (HF)
Technical Specifications
| Specification | Value |
|---|---|
| Model | VGF39NCHXT |
| Type | 3mm Chip trimmer potentiometer with Metal-Glaze Resistor |
| Operating Temperature Range | -40 to +100 |
| Storage Temperature Range | -40 to +100 |
| Nominal Total Resistance Range | 100 to 1 M |
| Total Resistance Tolerance | 25 % |
| Power Rating | 0.15 W (up to +70 ) |
| Maximum Operating Voltage | 50 V |
| Total Mechanical Rotation | 270 20 |
| Rotational Torque | 0.98 mNm to 11.76 mNm |
| Push Load (Axial) | 9.8 N for 30 seconds |
| End Stop Strength | 14.7 mNm torsion moment for 5 seconds |
| Soldering Strength (Static Load) | 9.8 N (left/right), 4.9 N (up) for 30 seconds |
| Contact Resistance (Total nominal resistance 1 k) | 5 % of nominal total resistance |
| Contact Resistance (Total nominal resistance > 1 k) | 2 % of nominal total resistance |
| Residual Resistance (1-2 or 2-3 terminals) | 20 (for total resistance 1 k) |
| Ineffective Rotation | 10 % of total mechanical rotation (at each end) |
| Temperature Coefficient (T.C.R.) | 250 ppm/ |
| Vibration Resistance (10 Hz - 55 Hz - 10 Hz) | Amplitude 1.5 mm, 2 hours per direction (X, Y, Z) |
| Load Life (1000 hours at 70) | Change in total resistance: 5 % |
| High Temperature Storage (1000 hours at 70) | Change in total resistance: 2 % |
| Rotational Life (20 cycles) | Change in total resistance: 10 % |
| Humidity Load Life (1000 hours at 40/90-95% RH) | Change in total resistance: 5 % |
| Humidity Resistance (1000 hours at 40/90-95% RH) | Change in total resistance: 5 % |
| Preset Position on Delivery | 50 % 15 % of total rotation angle |
| Taping Quantity | 2,500 pcs/reel (excluding fractions) |
Materials
| Part Name | Base Material | Plating | Remarks |
|---|---|---|---|
| Board | Ceramic (Alumina) | - | - |
| Resistor | Metal Glaze Coating | - | - |
| Electrode | AgPd | - | - |
| 1st, 3rd Terminal | Steel | Under Plating Ni: 0.5-2 m, Surface Plating Sn: 2-4 m | - |
| 2nd Terminal | Steel | Under Plating Ni: 0.5-2 m, Surface Plating Sn: 2-4 m | - |
| Moving Contact | Stainless Steel | - | - |
| Sealing Resin | Acrylic | - | - |
| Terminal Joint | Solder (Sn-3Ag-0.5Cu) | - | Lead-free solder |
Application Notes
- Recommended soldering conditions: Reflow soldering (peak temp. within 260, 10s max; 230+, 40s max). Hand soldering: Tip temp. 40010, 3s+1s/-0s.
- Do not use flow soldering.
- Handle with care to avoid damaging the sliding part.
- Adjust resistance with a driver inserted perpendicularly to the sliding part.
- Avoid flux and solder scattering on the resistor surface and sliding contact during soldering.
- This product is not washable.
- Do not use adhesives for fixing the slider.
- Ensure proper insulation if wiring patterns are present beneath the product.
- For applications requiring high reliability and safety, implement fail-safe designs (protective circuits, redundant circuits).
- Recommended storage conditions: Normal temperature (5-35), normal humidity (45-85% RH). Storage period: 6 months from delivery. Avoid direct sunlight and corrosive gas atmospheres.
2411220546_HDK-VGF39NCHXT-B301_C22461623.pdf
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