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Specifications
Tolerance:
±25%
Temperature Coefficient:
±250ppm/℃
Power(Watts):
150mW
Resistance:
20kΩ
Mfr. Part #:
VGF39NCHXT-B203
Package:
SMD-3P,3.8x3.7mm
Key Attributes
Model Number:
VGF39NCHXT-B203
Product Description
HOKURIKU ELECTRIC INDUSTRY CO., LTD. - VGF39NCHXT HDK Variable Resistor
Product Overview
The HOKURIKU ELECTRIC INDUSTRY CO., LTD. VGF39NCHXT is a 3 mm Chip trimmer potentiometer featuring a Metal-Glaze-Resistor, designed for general electronic equipment applications. This component offers a wide operating temperature range and is constructed with durable materials, making it suitable for various industrial and electronic uses. It adheres to RoHS directives and is manufactured in China.
Product Attributes
- Brand: HDK (HOKURIKU ELECTRIC INDUSTRY CO., LTD.)
- Type: VGF39NCHXT
- Origin: CHINA (Manufactured by DANDONG NEW LAND ELECTRONIC Co., Ltd.)
- Resistor Type: Metal-Glaze-Resistor
- Certifications: RoHS
Technical Specifications
| Specification | Value |
|---|---|
| Type | VGF39NCHXT |
| Nominal Total Resistance Range | 100 to 1 M |
| Total Resistance Tolerance | 25 % |
| Power Rating | 0.15 W (+70 ) |
| Maximum Operating Voltage | 50 V |
| Operating Temperature Range | -40 to +100 |
| Storage Temperature Range | -40 to +100 |
| Standard Atmospheric Conditions (Measurement) | Temperature: 5 to 35 , Relative Humidity: 45 % to 85 %, Air Pressure: 860 hPa to 1060 hPa |
| Mechanical Rotation | 270 20 |
| Rotational Torque | 0.98 mNm to 11.76 mNm |
| Push Load (Axial) | 9.8 N (for 30 seconds) |
| Torsion Moment (Spindle) | 14.7 mNm (for 5 seconds) |
| Soldering Strength (Load) | 9.8 N (Left/Right/Forward/Backward), 4.9 N (Upward) 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 (Terminals 1-2 or 2-3) | 20 |
| Temperature Coefficient (T.C.R.) | 250 ppm/ |
| Load Life (1000h at 70) | Change in total resistance: 5 % of initial value |
| Vibration Resistance (1.5mm amplitude, 10Hz-55Hz-10Hz, 2h per axis) | Change in resistance: 5 % of initial value; No distinct looseness or poor contact |
| High Temperature Storage (1000h at 70) | Change in total resistance: 2 % of initial value; No distinct looseness or poor contact |
| Rotational Life (20 cycles at 10 min-1) | Change in total resistance: 10 % of initial value |
| Humidity Load Life (1000h at 40/90-95% RH) | Change in total resistance: 5 % of initial value |
| Humidity Resistance (1000h at 40/90-95% RH) | Change in total resistance: 5 % of initial value; No distinct looseness or poor contact |
| Temperature Cycle Endurance (5 cycles) | Change in total resistance: 2 % of initial value; No distinct looseness or poor contact |
| Preset Position (Delivery) | 50% 15% of total rotation angle |
| Taping Quantity | 2,500 pcs/reel (excluding fractions) |
Materials
| Part Name | Base Material | Plating |
|---|---|---|
| Board | Ceramic (Alumina) | N/A |
| Resistor | Metal Glaze Coating | N/A |
| Electrode | AgPd | N/A |
| 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 | N/A |
| Sealing Resin | Acryl | Solder (Sn-3Ag-0.5Cu) |
Application Notes
- Recommended soldering: Reflow soldering. Flow soldering is not recommended.
- Adjustment driver insertion should be perpendicular to the sliding part.
- Avoid excessive force on the sliding part during adjustment.
- Handle with care to prevent flux and solder scattering on the resistor surface and sliding contact.
- Product is not washable.
- Do not use adhesives for fixing the slider.
- Ensure proper insulation measures if wiring patterns are present directly beneath the product after mounting.
- Refer to EIAJ RCR-2191A for potentiometer usage guidelines.
- For high-reliability applications, implement fail-safe design measures (protective circuits, redundant circuits).
Product Storage Condition
- Recommended: Normal temperature (5 to 35 ), normal humidity (45 % to 85 % RH).
- Storage period: 6 months from delivery.
- Store in original packaging without applying stress.
- Avoid direct sunlight and corrosive gas atmospheres.
2411220546_HDK-VGF39NCHXT-B203_C22461617.pdf
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