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Specifications
Tolerance:
±25%
Temperature Coefficient:
±250ppm/℃
Power(Watts):
150mW
Resistance:
200Ω
Mfr. Part #:
VGF39NCHXT-B201
Package:
SMD-3P,3.8x3.7mm
Key Attributes
Model Number:
VGF39NCHXT-B201
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, this component offers a reliable solution for variable resistance adjustments within a specified operating temperature range. It is manufactured in China by DANDONG NEW LAND ELECTRONIC Co., Ltd.
Product Attributes
- Brand: HDK (HOKURIKU ELECTRIC INDUSTRY CO., LTD.)
- Type: VGF39NCHXT
- Origin: CHINA
- Material: 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 |
| Total 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 (Lateral), 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 (1-2 or 2-3) | 20 (for total resistance 1 k) |
| Residual Resistance (1-2 or 2-3) | 5 % of nominal total resistance (for total resistance > 1 k) |
| Ineffective Rotation | 10 % of total mechanical rotation (at each end) |
| Temperature Coefficient (T.C.R.) | 250 ppm/ |
| Load Life (1000h at 70) | Change in total resistance: 5 % |
| Rotational Life (20 cycles) | Change in total resistance: 10 % |
| Vibration Resistance (1.5mm amplitude, 2h per axis) | Change in resistance: 5 %; No distinct looseness or poor contact |
| Resistance to Soldering Heat | No dissociation during test; Change in resistance (1-2): 5 % |
| High Temperature Storage (1000h at 70) | Change in total resistance: 2 %; No distinct looseness or poor contact |
| Humidity (1000h at 40, 90-95% RH) | Change in total resistance: 5 %; No distinct looseness or poor contact |
| Humidity Load Life (1000h at 40, 90-95% RH) | Change in total resistance: 5 % |
| Temperature Cycle (5 cycles) | Change in total resistance: 2 %; No distinct looseness or poor contact |
| Preset Position (Delivery) | 50% 15% of total rotation angle |
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 usable.
- Take care to prevent flux and solder scattering on the resistor surface and sliding contact during soldering.
- This product is not washable.
- Handle with care.
- Adhesives for slider fixing are not recommended due to potential contact instability.
- Excessive soldering time or temperature may impair product functions.
- For reflow soldering, cream solder thickness should be 100-150m. Ensure appropriate solder amount to avoid insufficient bonding or solder bridges.
- Recommended soldering conditions: Reflow (within 2 times, peak temp. within 260 for 10s, 230 for 40s); Hand soldering (tip temp. 40010, 3s+1s/-0s).
- This product is not designed for high-risk applications such as human life support or nuclear-related equipment. Implement fail-safe designs with protective circuits or redundant systems for safety-critical applications.
- If wiring patterns are located directly beneath the product after mounting, ensure insulation measures with resist or similar materials.
- Refer to EIAJ RCR-2191A for additional guidelines on potentiometer application.
Product Storage Condition
- Recommended storage: Normal temperature (5 to 35 ), normal humidity (45% to 85% RH).
- Storage period: 6 months from delivery.
- Store in original packaging without applying stress. If opened, use appropriate moisture/gas-proof measures.
- Avoid storage under direct sunlight or in corrosive gas atmospheres.
Marking
Marking uses two digits. The first digit represents significant figures, and the second digit represents the quantity of zeros that follow. For E series, significant digits are represented by specific alphabets (e.g., 1.5 is E, 2.2 is J). Example: 1.5 k is E3, 2.2 k is J4.
Taping Specification
- Dimensions: Refer to attached drawing.
- Taping Direction: Refer to attached drawing and Fig. 2.
- Cover Tape Peeling Strength: 0.1N to 0.7N.
- Taping Method: Refer to Fig. 1. Includes minimum vacant positions (100mm) at start/end, non-adhesion (20mm MIN.) and leader tape (150mm MIN.). Clockwise winding.
- Taping Quantity: 2,500 pcs/reel (excluding fractions).
Packaging Specification
Details on inner and outer box configurations, reel counts, and maximum quantities per box are provided, along with label description requirements (HDK Type, Part No., Quantity, Date, Lot No., Resistance Value, RoHS, HF, management indication).
2411220546_HDK-VGF39NCHXT-B201_C22461457.pdf
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