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Specifications
Tolerance:
±25%
Temperature Coefficient:
±250ppm/℃
Power(Watts):
150mW
Resistance:
220Ω
Mfr. Part #:
VGF39NCHXT-B221
Package:
SMD-3P,3.8x3.7mm
Key Attributes
Model Number:
VGF39NCHXT-B221
Product Description
HOKURIKU ELECTRIC INDUSTRY CO., LTD. - VGF39NCHXT Variable Resistor
Product Overview
The HOKURIKU ELECTRIC INDUSTRY CO., LTD. VGF39NCHXT is a 3mm Chip trimmer potentiometer featuring a Metal-Glaze-Resistor, designed for general electronic equipment applications. It offers a wide operating temperature range and reliable performance, suitable for various industrial and electronic systems.
Product Attributes
- Brand: HOKURIKU ELECTRIC INDUSTRY CO., LTD.
- Type: HDK VGF39NCHXT
- Origin: CHINA (Manufactured by DANDONG NEW LAND ELECTRONIC Co., Ltd.)
- Conformity: RoHS Directives
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | 3mm Chip trimmer potentiometer with Metal-Glaze-Resistor |
| Application | General electronic equipment |
| Operating Temperature Range | -40 to +100 |
| Storage Temperature Range | -40 to +100 |
| Nominal Total Resistance Range | 100 to 1 M (See attached Application List for 1, 2, 3, 5, E series) |
| Total Resistance Tolerance | 25 % |
| Power Rating | 0.15 W (up to +70 ) |
| Rated Voltage | E=PR (P: Power Rating [W], R: Nominal Total Resistance []). If rated voltage exceeds maximum operating voltage, maximum operating voltage is used. |
| Maximum Operating Voltage | 50 V |
| Mechanical Rotation | 270 20 |
| Rotational Torque | 0.98 mNm to 11.76 mNm |
| Push Load (Axial) | 9.8 N for 30 seconds |
| Torsion Moment | 14.7 mNm for 5 seconds |
| Soldering Strength Load | 9.8 N (front/back/left/right), 4.9 N (upwards) for 30 seconds |
| Contact Resistance | 5 % or less of nominal total resistance (for total nominal resistance 1 k) |
| Residual Resistance | 20 or less (for total nominal resistance 1 k) |
| Residual Resistance | 2 % or less of nominal total resistance (for total nominal resistance > 1 k) |
| Temperature Coefficient (T.C.R.) | 250 ppm/ |
| Vibration Resistance | 1.5 mm amplitude, 10 Hz to 55 Hz to 10 Hz/min, 2 hours in X, Y, Z directions |
| Load Life | 1000 h 12 h at 70 2 with rated DC voltage |
| High Temperature Storage | 1000 h 12 h at 70 2 |
| Humidity Load Life | 1000 h 12 h at 40 2 , 90% to 95% RH with rated DC voltage |
| Humidity Resistance | 1000 h 12 h at 40 2 , 90% to 95% RH (no load) |
| Temperature Cycle Durability | 5 successive temperature cycles (details in document) |
| Rotational Life | 20 cycles 2 cycles at 10 min-1 (without load) |
| 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) | - |
| 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 | ACRYL | SOLDER (Sn-3Ag-0.5Cu) |
Marking
Marking uses 2 characters. The first digit shows significant figures, and the second digit shows the quantity of zeros that follow. For E series, significant digits are represented by alphabets (e.g., 1.5 = E, 2.2 = J).
Application Notes
- Adjustment force should be less than 4.9N (500gf).
- Avoid excessive force on the sliding part during adjustment to prevent deformation or damage.
- Insert adjustment driver perpendicular to the sliding part.
- Reflow soldering is recommended; flow soldering is not suitable.
- Be cautious of flux and solder scattering during soldering.
- This product is not washable.
- Handle with care.
- Adhesives for fixing the slider are not recommended due to potential contact instability.
- Excessive soldering time or temperature can impair product functions.
- For reflow soldering, cream solder thickness should be 100-150 m.
- Ensure proper insulation measures if wiring patterns are present directly beneath the product after mounting.
- Refer to EIAJ RCR-2191A for potentiometer usage guidelines.
Safety Considerations
For applications requiring high safety and reliability, implement fail-safe designs such as protective circuits or redundant circuits to mitigate risks associated with component failures.
Product Storage Conditions
- 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-B221_C22461619.pdf
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