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Specifications
Type:
Wirewound Resistor
Resistance:
4.7Ω
Voltage-Supply(Max):
-
Power(Watts):
1W
Temperature Coefficient:
±350ppm/℃
Tolerance:
±5%
Mfr. Part #:
RXF-1W-4.7R-J-T52
Package:
Through Hole,D5xL12mm
Key Attributes
Model Number:
RXF-1W-4.7R-J-T52
Product Description
Product Overview
The RXF series resistors from DONGGUAN HONGDA ELECTRONIC TECHNOLOGY CO.,LTD are designed for electronic equipment, offering good surge resistance, high fusing consistency, and a compact size for easy installation. They are safe and reliable, finding wide application in electronic devices such as light sources, switching power supplies, chargers, and home appliances. Key certifications include VDE, UL/CUL, and CQC.
Product Attributes
- Brand: HONGDA
- Origin: Dongguan, China
- Certifications: VDE, UL/CUL (E359590), CQC (0.5W-CQC13001095211, 1W-CQC13001095213, 2W-CQC13001095221)
Technical Specifications
Dimensions and Lead Lengths
| Model | Rated Power (W) | Dimensions (mm) Dmax. x Lmax. | Lead Allowable Length* (mm) H1 | Lead Diameter d0.05 |
|---|---|---|---|---|
| RXF 0.25, 0.5S, 1WX | 3.0 | 7.0 | 6070 | 0.380.45 |
| 0.5, 1S, 2WX | 4.0 | 10.0 | 6090 | 0.430.60 |
| 1, 2S, 3WX | 5.0 | 12.0 | 6070 | 0.540.72 |
| 2, 3S | 6.0 | 16.0 | 6080 | 0.600.72 |
Electrical Characteristics
| Model | Rated Power (W) | Resistance Range () | Resistance Tolerance (%) | Insulation Voltage (V) (DC or AC peak) | Component Limiting Voltage (V) |
|---|---|---|---|---|---|
| RXF 0.25, 0.5S, 1X | 0.22-300 | 5, 10 | 250 | 200 | |
| 0.5, 1S, 2X | 250 | 350 | |||
| 1, 2S, 3X | 350 | ||||
| 2, 3S | 0.22-47 | 500 | 350 |
General Data
| Parameter | Specification |
|---|---|
| Nominal Resistance Tolerance | 5%, 10% |
| Climatic Category | 55/155/21 |
| Low Air Pressure | 8.5kpa |
| Stability Grade | 5% |
| Resistance Change Limit | Long-term test: (5%R+0.1), Short-term test: (1%R+0.05) |
| Temperature Coefficient | Standard type 350 ppm; Semi-fusing type, explosion-proof type, high lightning surge type: 35001500 ppm |
| Rated Current | I2(A)=P(W)/R() |
| Power Derating Curve | Refer to Figure 2 (Rated power is maximum continuous working power at 70; derate according to curve above 70) |
| Fusing Characteristic | Defined as significant increase in resistance when overloaded, causing current to drop to below 1/50 of initial test current. Fusing time is time from application of overload to fusing. |
| Fusing Time Requirements | Under specified rated current overload multiples, fusing time should meet table requirements. (See Table 3-1 for standard and high lightning surge types; Table 3-2 for explosion-proof types; Table 3-3 for semi-fusing types). Fusing time can be customized. |
| Impact Resistance | Test according to Figure 3 (repeatedly switch K1 ON for 2S and OFF for 2S, 100 times). Resistor should not be open-circuited. (Capacitor C selection based on customer requirements, default 10uF. Resistor R value selection based on circuit, calculated as internal resistance, 20W power rating, 0.8 power factor, typically 20W for resistors under 10W, 5.1K 5%). |
Main Test Items, Methods, and Performance Requirements
| No. | Test Item | Test Method | Performance Requirement |
|---|---|---|---|
| 1 | Resistance | Measured by resistance error sorter. | Resistance value within nominal resistance and allowable tolerance. |
| 2 | Short-time Overload | Apply 2.5 times rated voltage for 5S, recover 1-2h, measure resistance and calculate change rate. | Resistance change: R(2%R+0.05) |
| 3 | Solderability | Dip lead ends in solder pot (2605) for 20.5S at depth of 2+0/-0.5mm from body. Observe solder coverage. | Over 90% coverage on the circumference of the immersed part. |
| 4 | Withstand Voltage | Place resistor in metal "V" groove, apply specified insulation voltage between leads and groove for 60S. | No visible damage, clear marking; no breakdown or arcing. |
| 5 | Resistance to Soldering Heat | Dip lead ends in solder pot (35010) for 3.50.5S at depth of 2+0/-0.5mm from body. Recover 1h, measure resistance and calculate change rate. | Resistance change: R(1%R+0.05) |
| 6 | Rapid Temperature Change | Cycles: Low temp (-553) for 30min, normal temp 2-3min, high temp (1553) for 30min, normal temp 2-3min. Perform 5 cycles. Recover 1-2h, measure resistance and calculate change rate. | Resistance change: R(1%R+0.05) |
| 7 | Endurance | Place in constant temperature oven (703), apply rated DC voltage, 1.5h ON, 0.5h OFF cycle for 1000h. Recover 1-4h, measure resistance and calculate change rate. | Resistance change: R(5%R+0.1) |
| 8 | Lead Strength | Tensile: 10N for 10S; Bending: Apply 5N load, tilt body ~90 for 2-3S, then bend 90 in opposite direction (2 bends total). | Resistance change: R(1%R+0.05) |
| 9 | Vibration | Resistor body 61mm from mounting point. Vibration frequency 10-500HZ, amplitude 0.75mm or acceleration 98m/s (whichever is smaller). Directions Z, X, Y axes for 2h each (total 6h). Cycle: 1min (10-55-10HZ). Measure resistance and calculate change rate after test. | 1) Appearance: No mechanical damage. 2) Resistance change: R(1%R+0.05) |
| 10 | Climatic Sequence | Dry heat -> Cyclic damp heat (Test Db, 1st cycle) -> Cold -> Low pressure -> Cyclic damp heat (Test Db, remaining cycles) -> DC load. | Resistance change: R(5%R+0.1). Insulation resistance: 100M. |
| 11 | Accidental Overload | Install sample in single-layer wire mesh cylinder 253mm from resistor body. Apply 5, 10, 16 times rated power overload for 5min or until open circuit. | Wire mesh cylinder does not ignite. |
Taping and Packaging
| Taping Specification | Dimensions (mm) U x W | Pitch P (mm) | L1-L2 | T | Z | R | t | S | T2 |
|---|---|---|---|---|---|---|---|---|---|
| T26 | 381 x 260.5 | 50.5 | 0.5 | 60.1 | 1 | 0 | 3.2 | 1.5 | |
| T52 | 642 x 521 | 1 | |||||||
| T63 | 752 x 631 | 100.5 | 1.2 | ||||||
| T72 | 842 x 722 | 50.5 | 1.2 |
Sleeve Product Styles and Dimensions
| Shape | Dimensions (mm) H1 | H11.5 | H21.5 | hh (15%) | h12 | h22 |
|---|---|---|---|---|---|---|
| TA Type | 70 | 20 | 20 | 50 | 10 | 10 |
| TB Type | 80 | 5 | 25 | 40 | 10 | 30 |
Molded Product Styles and Dimensions
| Shape | Dimensions (mm) P1.0 | H1 | h0.5 |
|---|---|---|---|
| n Type | 5 | 3.5 | 8 |
| B Type | 5 | 3.5 | 8 |
| L Type | 12.5 | 4.5 | 14.5 |
Model Specification Name Explanation (Example)
| Component | Description |
|---|---|
| RXF | Series Name |
| Rated Power | 0.25w, 0.5w, 1w, 2w, 3w |
| Resistance Tolerance | J: 5%, K: 10%, M: 20% |
| Nominal Resistance | E24 Series (See diagram) |
| Type | S: Miniaturized, X: Ultra-miniaturized |
Color Code Markings
| Color | 1st Digit | 2nd Digit | 3rd Digit | Multiplier | Tolerance |
|---|---|---|---|---|---|
| Black | 0 | 0 | 0 | 10 | |
| Brown | 1 | 1 | 1 | 10 | 1% |
| Red | 2 | 2 | 2 | 10 | 2% |
| Orange | 3 | 3 | 3 | 10 | |
| Yellow | 4 | 4 | 4 | 10 | |
| Green | 5 | 5 | 5 | 10 | 0.5% |
| Blue | 6 | 6 | 6 | 10 | 0.25% |
| Violet | 7 | 7 | 7 | 10 | 0.1% |
| Gray | 8 | 8 | 8 | 10 | |
| White | 9 | 9 | 9 | 10 | |
| Gold | 10 | 5% | |||
| Silver | 10 | 10% | |||
| Plain | 20% |
Packaging Method
| Packaging Type | Details |
|---|---|
| Inner Box Packaging | Taped reel 1K/box |
| Outer Carton Packaging | (Details not provided in source text) |
2304140030_Hongda-RXF-1W-4-7R-J-T52_C2149614.pdf
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