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Specifications
Type:
Wirewound Resistor
Resistance:
10Ω
Voltage-Supply(Max):
-
Power(Watts):
250mW
Temperature Coefficient:
±350ppm/℃
Tolerance:
±5%
Mfr. Part #:
RXF-1/4W-10R-J-T52
Package:
Through Hole,D3xL7mm
Key Attributes
Model Number:
RXF-1/4W-10R-J-T52
Product Description
Product Overview
The RXF series from Dongguan Hongda Electronic Technology Co., Ltd. offers high-performance resistors with excellent surge resistance and good fusing consistency. These compact and easy-to-install components are designed for safety and reliability, making them ideal for a wide range of electronic equipment including light sources, switching power supplies, chargers, and home appliances. The series has obtained multiple safety certifications, including VDE, UL/CUL, and CQC.
Product Attributes
- Brand: RXF Series
- Manufacturer: Dongguan Hongda Electronic Technology Co., Ltd.
- Origin: China
- Certifications: VDE, UL/CUL (Cert No: E359590), CQC (Cert No: 0.5W-CQC13001095211, 1W-CQC13001095213, 2W-CQC13001095221)
Technical Specifications
General Data:
- Nominal Resistance Tolerance: 5%, 10%
- Climatic Category: 55/155/21
- Low Pressure: 8.5kPa
- Stability Grade: 5%
- Resistance Change Limit (Long-term Test): (5%R+0.1)
- Resistance Change Limit (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: I(A) = P(W)/R()
- Rated power is the maximum value for continuous operation at 70. Power derating is required above 70 as per the derating curve (Figure 2).
- Fusing Characteristic: Defined as the significant increase in resistance when subjected to a specified overload, causing the current to drop to below 1/50 of the initial test current. The time taken from applying the overload to fusing is the fusing time.
- Impact Resistance: Tested by repeatedly switching a circuit on and off for 100 cycles (2s on, 2s off) without the test resistor becoming open circuit.
Dimensions and Ratings
| Model | Rated Power (W) | Dimensions (mm) Dmax. Lmax. | Lead Wire Allowable Length* (mm) | H1 | d0.05 |
|---|---|---|---|---|---|
| RXF 0.25, 0.5S, 1WX | 3.0 | 7.0 | 6070 | 0.380.45 | 1 |
| 0.5, 1S, 2WX | 4.0 | 10.0 | 6090 | 0.430.60 | 1.5 |
| 1, 2S, 3WX | 5.0 | 12.0 | 6070 | 0.540.72 | - |
| 2, 3S | 6.0 | 16.0 | 6080 | 0.600.72 | - |
Electrical Specifications
| Model | Rated Power (W) | Resistance Range () | Resistance Tolerance (%) | Insulation Voltage (V) (DC or AC Peak) | Component Limit Voltage (V) |
|---|---|---|---|---|---|
| RXF 0.25, 0.5S, 1X | - | 0.22-300 | 5, 10 | 250 | 200 |
| 0.5, 1S, 2X | - | - | - | 250 | 250 |
| 1, 2S, 3X | - | - | - | 350 | 350 |
| 2, 3S | - | 0.22-47 | - | 500 | 350 |
Fusing Time Specifications (Standard Type & High Lightning Surge Type - Table 3-1)
| Rated Current Multiplier (x) | Fusing Time (S) |
|---|---|
| 0.25W R1 | 6 |
| 0.25W R1 | 7 |
| 30 | - |
| 0.52W R1 | 6 |
| 0.52W R1 | 6 |
| 30 | - |
| 122 | 100 |
| 58.5 | - |
| 55 | 25 |
| 70 | 155 |
| 275 | - |
Note: Fusing time can be customized upon user request.
Fusing Time Specifications (Explosion-proof Type - Table 3-2)
(Data not fully detailed in provided text, refer to Table 3-2 in original document)
Fusing Time Specifications (Semi-fusing Type - Table 3-3)
(Data not fully detailed in provided text, refer to Table 3-3 in original document)
Main Test Items, Methods, and Performance Requirements (Table 4)
| No. | Test Item | Test Method | Performance Requirement |
|---|---|---|---|
| 1 | Resistance | Measured by resistance error sorter. | Resistance value is within the nominal resistance and allowable deviation range. |
| 2 | Short-time Overload | Apply 2.5 times rated voltage for 5S, recover for 1-2h, measure resistance and calculate change rate. | Resistance Change: R(2%R+0.05) |
| 3 | Solderability | Dip lead wires into solder pot at (2605) for 20.5S, depth 2+0/-0.5mm from body. Observe solder coverage. | Over 90% surface coverage in the circumferential direction of the dipped part. |
| 4 | Withstand Voltage | Apply specified insulation voltage between leads and 'V' groove for 60S. | No visible damage, clear markings; no breakdown or arcing. |
| 5 | Resistance to Soldering Heat | Dip lead wires into solder pot at (35010) for 3.50.5S, depth 2+0/-0.5mm from body. Recover for 1h, measure resistance and calculate change rate. | Resistance Change: R(1%R+0.05) |
| 6 | Rapid Temperature Change | Cycles of -553 (30min), room temp (2-3min), 1553 (30min), room temp (2-3min), repeated 5 times. Recover for 1-2h, measure resistance and calculate change rate. | Resistance Change: R(1%R+0.05) |
| 7 | Endurance | Place in a constant temperature oven at (703). Apply rated DC voltage, 1.5h on, 0.5h off, cycle for 1000h. Recover for 1-4h, measure resistance and calculate change rate. | Resistance Change: R(5%R+0.1) |
| 8 | Lead Strength | Tensile test: 10N for 10S. Bending test: 5N load, tilt body ~90 for 2-3S, repeat in opposite direction (2 bends total). | Resistance Change: R(1%R+0.05) |
| 9 | Vibration | Resistor body 61mm from mounting point. Frequency 10-500Hz, amplitude 0.75mm or acceleration 98m/s (whichever is smaller). Vibration along Z, X, Y axes for 2h each (total 6h), period 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 (Db), cold, low pressure, cyclic damp heat (Db), DC load. | Resistance Change: R(5%R+0.1) Insulation Resistance: 100M |
| 11 | Accidental Overload | Install sample in a single-layer silk screen cylinder 253mm from resistor body. Apply 5, 10, 16 times rated power overload for 5min or until open circuit. | Silk screen cylinder does not ignite. |
Taping Style and Dimensions (Table 5)
| Taping Specification | Dimensions (mm) U | W | P | L1-L2 | T | Z | R | t | T2 |
|---|---|---|---|---|---|---|---|---|---|
| T26 | 381 | 260.5 | 50.5 | 0.5 | 60.1 | 1 | 0 | 3.2 | 1.5 |
| T52 | 642 | 521 | - | 1 | - | - | - | - | - |
| T63 | 752 | 631 | 100.5 | 1.2 | 752 | 631 | - | - | - |
| T72 | 842 | 722 | 50.5 | 1.2 | 842 | 722 | - | - | - |
Sleeve Product Style and Dimensions (Table 6)
| 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 |
Note: Exposed lead wire part 5mm, tolerance is +2/-1mm. Sleeve dimensions can be customized upon customer request.
Molded Style and Dimensions (Table 7)
| 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 |
Note: Molded shape and dimensions can be customized upon customer request.
Model Specification Name Explanation (Example)
RXF 1W S 10 J
- Rated Power: 0.25w, 0.5w, 1w, 2w, 3w
- Resistance Tolerance: J (5%), K (10%), M (20%)
- Nominal Resistance: E24 Series (Refer to color code chart for specific values)
- Model: RXF
- Winding: 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
- Inner Box Packaging: Taped reel 1K/box
- Outer Box Packaging: (Details not provided)
2304140030_Hongda-RXF-1-4W-10R-J-T52_C2149595.pdf
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