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Specifications
Type:
Wirewound Resistor
Resistance:
3.3Ω
Voltage-Supply(Max):
-
Power(Watts):
1W
Temperature Coefficient:
±350ppm/℃
Tolerance:
±5%
Mfr. Part #:
RXF-1WS-3.3R-J-T52
Package:
Through Hole,D4xL10mm
Key Attributes
Model Number:
RXF-1WS-3.3R-J-T52
Product Description
Product Overview
The RXF series from Dongguan Hongda Electronic Technology Co., Ltd. are high-performance resistors designed for a wide range of electronic applications. These resistors offer excellent surge resistance, good fusing consistency, and a compact size for easy installation, ensuring safety and reliability. They are widely used in electronic equipment such as 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 (Certificate No.: E359590), CQC (Certificate Nos.: 0.5W-CQC13001095211, 1W-CQC13001095213, 2W-CQC13001095221)
Technical Specifications
Dimensions and Lead Lengths
| Model | Rated Power (W) | Dimensions (mm) Dmax. Lmax. H1 | Lead Allowable Length* (mm) | d0.05 |
|---|---|---|---|---|
| RXF 0.25, 0.5S, 1WX | 3.0 | 7.0 | 6070 | 0.380.45 |
| RXF 0.5, 1S, 2WX | 4.0 | 10.0 | 6090 | 0.430.60 |
| RXF 1, 2S, 3WX | 5.0 | 12.0 | 6070 | 0.540.72 |
| RXF 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 Limit Voltage (V) |
|---|---|---|---|---|---|
| RXF 0.25, 0.5S, 1X | 0.22-300 | 5, 10 | 250 | 200 | |
| RXF 0.5, 1S, 2X | 250 | 350 | |||
| RXF 1, 2S, 3X | 350 | 350 | |||
| RXF 2, 3S | 0.22-47 | 500 | 350 |
General Data
- 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: I(A) = P(W)/R()
- Derating Curve: Rated power is the maximum continuous operating value at 70. Power consumption decreases according to the curve when exceeding 70.
- Fusing Characteristics: Defined as a significant increase in resistance when subjected to specified overload, causing the current to drop below 1/50 of the initial test current. Fusing time is the duration from applying the specified overload until fusing occurs.
Fusing Time Requirements (Standard Type and High Lightning Surge Type)
| Rated Current Multiplier (times) | Fusing Time (S) |
|---|---|
| 0.25W R1 | 6 |
| 0.25W R1 | 7 |
| 0.52W R1 | 30 |
| 0.52W R1 | 30 |
Fusing Time Requirements (Explosion-proof Type)
| Rated Current Multiplier (times) | Fusing Time (S) |
|---|---|
| 0.25-2W | 60 |
| 4 | 30 |
Fusing Time Requirements (Semi-fusing Type)
| Rated Current Multiplier (times) | Fusing Time (S) |
|---|---|
| 0.25-2W | 60 |
| 2 | 30 |
Impact Resistance
When the switch K is closed and K2 is opened, K1 is repeatedly switched on/off for 2 seconds each for 100 cycles. The test resistor should not show an open circuit.
Main Test Items, Methods, and Performance Requirements
| No. | Test Item | Test Method | Performance Requirements |
|---|---|---|---|
| 1 | Resistance | Measured by resistance error sorter. | Resistance value is within the nominal resistance and allowable tolerance range. |
| 2 | Short-time Overload | Apply 2.5 times the rated voltage for 5S, recover for 1-2h, measure resistance, and calculate resistance change rate. | Resistance change: R(2%R+0.05) |
| 3 | Solderability | Dip the resistor leads into a solder pot at (2605) for 20.5S, with an immersion depth of 2+0/-0.5mm from the component body. Observe solder coverage. | Over 90% coverage in the circumferential direction on the surface of the immersed part. |
| 4 | Withstand Voltage | Place the resistor in a metal "V" groove. Apply the specified insulation voltage between the connected leads and the "V" groove for 60S. | No visible damage to the appearance, clear marking; no breakdown or arcing. |
| 5 | Withstand Soldering Heat | Measure resistance before test. Dip the resistor leads into a solder pot at (35010) for 3.50.5S, with an immersion depth of 2+0/-0.5 mm from the component body. Recover for 1h, measure resistance, and calculate resistance change rate. | Resistance change: R(1%R+0.05) |
| 6 | Rapid Temperature Change | Cycle: Low temp (-553) for 30 min, normal temp for 2-3 min, high temp (1553) for 30 min, normal temp for 2-3 min. Perform 5 cycles. Recover for 1-2h, measure resistance, and calculate resistance change rate. | Resistance change: R(1%R+0.05) |
| 7 | Durability | Place the resistor 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 resistance change rate. | Resistance change: R(5%R+0.1) |
| 8 | Lead Strength | Tensile: Apply 10N force for 10S. Bending: Apply 5N load to the lead, tilt the resistor body approximately 90 in (2-3)S. After recovery, bend in the opposite direction for a total of 2 bends. | Resistance change: R(1%R+0.05) |
| 9 | Vibration | Distance from resistor body to mounting point is 61mm. Vibration frequency range 10-500Hz, amplitude: 0.75mm or acceleration 98m/s (whichever is smaller). Vibration direction along Z, X, Y axes for 2h each, total 6h. Cycle: 1min (10-55-10Hz). Measure resistance after test and calculate resistance change rate. | 1) Appearance: No mechanical damage. 2) Resistance change: R(1%R+0.05) |
| 10 | Climatic Sequence | Dry heat - Cyclic damp heat (Test Db, first 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 test samples inside a single-layer wire mesh cylinder at a distance of 253mm from the resistor body. Apply 5, 10, 16 times rated power overload for 5min or until the resistor becomes open-circuited. | Wire mesh cylinder does not ignite. |
Taping Style and Dimensions
| 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 | 1.2 | 752 | 631 | 100.5 | |||
| T72 | 842 | 722 | 50.5 | 1.2 | 842 | 722 | 100.5 |
Sleeve Product Style 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 Style 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)
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
- Model: RXF
- Lead 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
- Inner Box Packaging: Taped, 1K/box
- Outer Box Packaging: Not specified
2304140030_Hongda-RXF-1WS-3-3R-J-T52_C2149606.pdf
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