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Specifications
Tolerance:
±25%
Temperature Coefficient:
±250ppm/℃
Power(Watts):
150mW
Resistance:
200kΩ
Mfr. Part #:
VGF39NCHXT-B204
Package:
SMD-3P,3.8x3.7mm
Key Attributes
Model Number:
VGF39NCHXT-B204
Product Description
HOKURIKU ELECTRIC INDUSTRY CO., LTD. - VGF39NCHXT HDK Variable Resistor
The VGF39NCHXT is a 3mm Chip trimmer potentiometer featuring a Metal-Glaze Resistor, designed for general electronic equipment applications. It offers a reliable and precise solution for adjusting resistance in various circuits.
Product Attributes
- Brand: HOKURIKU ELECTRIC INDUSTRY CO., LTD. (HDK)
- Type: VGF39NCHXT
- Origin: CHINA (DANDONG NEW LAND ELECTRONIC Co., Ltd.)
- Conformity: RoHS Directives
Technical Specifications
| Specification | Details |
|---|---|
| Scope | 3 mm Chip trimmer potentiometer with Metal-Glaze Resistor, used in electronic equipment. |
| 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 | 9.8 N (applied axially for 30 seconds) |
| End Stop Strength | 14.7 mNm (torsion moment for 5 seconds) |
| Soldering Strength | 9.8 N (lateral/front/back), 4.9 N (upward) applied for 30 seconds after soldering. |
| 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 (Terminal 1-2) | 20 (for total nominal resistance 1 k) |
| Residual Resistance (Terminal 2-3) | 20 (for total nominal resistance 1 k) |
| Ineffective Rotation | 10 % of total mechanical rotation (at each end) |
| Temperature Coefficient (T.C.R.) | 250 ppm/ |
| Resistance Law (Taper) | B characteristic (Linear taper) (40% to 60% at 50% angle) |
| Vibration Resistance | 1.5 mm amplitude (10 Hz to 55 Hz) for 2 hours in X, Y, Z directions. No distinct looseness or poor contact. |
| Resistance to Soldering Heat | No dissociation during test. Resistance change 5% of initial value. |
| Load Life | 1000 h 12 h at 70 2 with rated DC voltage. Resistance change 5% of initial value. |
| High Temperature Storage | 1000 h 12 h at 70 2 . Resistance change 2% of initial value. |
| Temperature Cycle Durability | 5 successive temperature cycles. Resistance change 2% of initial value. |
| Rotational Life | 20 cycles 2 cycles at 10 min without load. Resistance change 10% of initial value. |
| Humidity Load Life | 1000 h 12 h at 40 2 and 90% to 95% RH with rated DC voltage. Resistance change 5% of initial value. |
| Humidity Resistance | 1000 h 12 h at 40 2 and 90% to 95% RH without load. Resistance change 5% of initial value. |
| Preset Position (Delivery) | 50 % 15 % of total rotation angle |
| Marking | Standard resistance value notation (e.g., 102 for 1 k). E-series uses alphabets for significant digits. |
| Materials | Base: Ceramic (Alumina), Resistor: Metal Glaze Coating, Electrodes: AgPd, Terminals: Steel (Sn plating), Moving Contact: Stainless Steel, Sealing Resin: Acrylic. |
| Taping Quantity | 2,500 pcs/reel (excluding fractions) |
Application Notes
- Recommended for reflow soldering. Flow soldering is not recommended.
- Avoid excessive force when adjusting resistance.
- Insert adjustment driver perpendicular to the operating shaft.
- Be cautious of flux and solder scattering during soldering.
- Product is not washable.
- Handle with care to avoid damage or malfunction.
- Consider protective circuits for applications requiring high safety and reliability.
- Recommended storage: Normal temperature (5-35 ), normal humidity (45-85% RH).
- Storage period: 6 months from delivery.
- Avoid storage under direct sunlight or in corrosive gas atmospheres.
- Adhesives for fixing the slider are not recommended.
2411220546_HDK-VGF39NCHXT-B204_C22461618.pdf
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