Precise resistance control 3mm chip trimmer potentiometer HDK VGF39NCHXT B222 with metal glaze resistor
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Product Description
HOKURIKU ELECTRIC INDUSTRY CO., LTD. - VGF39NCHXT HDK Type Variable Resistor
The VGF39NCHXT is a 3mm chip trimmer potentiometer with a Metal-Glaze Resistor, designed for general electronic equipment applications. It offers precise resistance adjustment capabilities and is built with durable materials for reliable performance.
Product Attributes
- Brand: HOKURIKU ELECTRIC INDUSTRY CO., LTD.
- Type: HDK VGF39NCHXT
- Origin: CHINA (Manufactured by DANDONG NEW LAND ELECTRONIC Co., Ltd.)
- Conforms to: 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 (at +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 applied for 5 seconds) |
| Soldering Strength | 9.8 N (lateral), 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 or 2-3) | 20 (for total resistance 1 k) |
| Residual Resistance (Terminal 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/ |
| Resistance Law (Taper) | B characteristic (Linear taper): 40% to 60% at 50% angle |
| Vibration Resistance | 1.5 mm amplitude, 10 Hz to 55 Hz sweep, 2 hours in X, Y, Z directions. Change in resistance: Within 5% of initial value. No distinct looseness or poor contact. |
| Load Life (1000 hours at 70) | Change in total resistance: Within 5% of initial value. |
| High Temperature Storage (1000 hours at 70) | Change in total resistance: Within 2% of initial value. No distinct looseness or poor contact. |
| Rotational Life (20 cycles at 10 min-1) | Change in total resistance: Within 10% of initial value. |
| Humidity Load Life (1000 hours at 40, 90-95% RH) | Change in total resistance: Within 5% of initial value. |
| Humidity (1000 hours at 40, 90-95% RH) | Change in total resistance: Within 5% of initial value. No distinct looseness or poor contact. |
| Temperature Cycle (5 cycles) | Change in total resistance: Within 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 (Al2O3) | - |
| 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 | SOLDER (Sn-3Ag-0.5Cu) |
Application Notes
- Recommended soldering method: Reflow soldering. Flow soldering is not recommended.
- When adjusting resistance, apply a force of less than 4.9N (500gf).
- Avoid excessive force on the sliding part (operating shaft) during adjustment to prevent deformation or breakage.
- Insert adjustment driver perpendicular to the sliding part.
- Be careful of flux and solder scattering on the resistor surface and sliding contact during soldering.
- This product is not washable.
- Handle with care.
- Adhesives for fixing the slider are not recommended due to potential contact instability.
- Avoid prolonged soldering times or excessively high soldering temperatures.
- For reflow soldering, cream solder thickness should be 100-150 m. Ensure appropriate solder amount to avoid insufficient bonding or solder bridges.
- Recommended Soldering Conditions: Reflow (within 2 times), Hand soldering (within 400, within 3s, 1 time).
- For applications requiring high safety and reliability, implement fail-safe designs such as protective circuits or redundant circuits.
- Recommended storage conditions: Normal temperature (5-35), normal humidity (45-85% RH).
- Storage period: 6 months from delivery.
- Store in original packaging, avoiding direct sunlight and corrosive gas atmospheres.
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Company
Beijing Silk Road Enterprise Management Services Co., Ltd.
Location
16 Floor, Unit B, Jiatai International Mansion, No 41, Dongsihuan Zhong Road, Chaoyang District, Beijing
Contact Person
Sellina