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Specifications
Type:
Wirewound Resistor
Resistance:
3.3Ω
Voltage-Supply(Max):
-
Power(Watts):
2W
Temperature Coefficient:
±350ppm/℃
Tolerance:
±5%
Mfr. Part #:
RXF-2WS-3.3R-J-T52
Package:
Through Hole,D5xL12mm
Key Attributes
Model Number:
RXF-2WS-3.3R-J-T52
Product Description
RXF Series - High-Performance Resistors
Product Overview
The RXF Series resistors from DONGGUAN HONGDA ELECTRONIC TECHNOLOGY CO.,LTD are designed for high-reliability applications. They offer excellent surge resistance, good fusing consistency, and a compact size for easy installation. These resistors are safe, reliable, and widely used in electronic equipment such as light sources, switching power supplies, chargers, and home appliances.
Product Attributes
- Brand: HONGDA
- Origin: Dongguan, China
- Certifications: VDE, UL/CUL (E359590), CQC
Technical Specifications
Dimensions and Lead Lengths
| Model | Rated Power (W) | Dimensions (mm) Dmax. x Lmax. | Lead Allowable Length* (mm) H1 | 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 (%) | Dielectric Strength (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 | 1 | 350 | 350 | |
| 1, 2S, 3X | 0.22-47 | 5, 10 | 500 | 350 | |
| 2, 3S | 5, 10 | 500 | 350 |
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); 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()
- Power Derating Curve: Rated power is the maximum continuous operating value at 70. Power consumption should be derated according to the curve when exceeding 70.
- Fusing Characteristics: Defined as significant increase in resistance when subjected to specified overload, causing current to drop below 1/50 of the initial test current. Fusing time is the duration from applying overload to fusing.
Fusing Time Requirements (Conventional and High Lightning Surge Types)
| Rated Current Multiplier (times) | Fusing Time (S) | Environmental Temperature (C) |
|---|---|---|
| 0.25W | R1: 6 | 30 |
| R1: 7 | ||
| 0.52W | R1: 6 | 30 |
| R1: 6 | ||
| - | 122 | 70 |
| - | 100 | 155 |
| - | 58.5 | 275 |
| - | 55 | - |
| - | 25 | - |
Note: Fusing time can be customized according to user requirements.
Impact Resistance
When the switch K is closed and K2 is opened, K1 is repeatedly switched on/off for 2s ON and 2s OFF for 100 cycles. The test resistor should not become open-circuited.
Note: 1. Capacitor C capacity is selected based on customer requirements; if not specified, C=10uF. 2. Resistor R value is chosen based on the circuit, converted to internal resistance. Resistor power is 20W, power factor is 0.8. For resistors below 10W, generally use 20W, 5.1K (5%).
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 nominal resistance and allowable tolerance. |
| 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 ends into solder pot (2605) for 20.5S, 2+0/-0.5mm depth from body. Observe solder coverage. | Over 90% coverage on the circumference of the immersed part. |
| 4 | Dielectric Strength | Place resistor in metal "V" groove, apply specified dielectric voltage between leads and groove for 60S. | No visible damage, clear marking; no breakdown, arcing. |
| 5 | Resistance to Soldering Heat | Measure resistance before test. Dip lead ends into solder pot (35010) for 3.50.5S, 2+0/-0.5mm depth from body. Recover for 1h, measure resistance and calculate change rate. | Resistance Change: R(1%R+0.05) |
| 6 | Rapid Change of Temperature | Cycle: -553 (30min) Room Temp (2-3min) 1553 (30min) Room Temp (2-3min). Repeat 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, recover, 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 | Mount 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 Style and Dimensions
| Taping Specification | Dimensions (mm) U x W | Pitch (P) | L1-L2 | T | Z | R | t | 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 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 |
Note: 1. Exposed lead length 5mm, tolerance is +2/-1 mm. 2. Sleeve dimensions can be customized according to customer requirements.
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 |
Note: Molded shape and dimensions can be produced according to customer requirements.
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 (See color code diagram)
- Model: RXF
- Type: S: Miniaturized, X: Ultra-miniaturized
Color Code Diagram
| 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 1K/box
- Outer Box Packaging: (Details not provided)
2304140030_Hongda-RXF-2WS-3-3R-J-T52_C2149618.pdf
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