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Specifications
Type:
Wirewound Resistor
Resistance:
10Ω
Voltage-Supply(Max):
-
Power(Watts):
2W
Temperature Coefficient:
±350ppm/℃
Tolerance:
±5%
Mfr. Part #:
RXF-2W-10R-J-T72
Package:
Through Hole,D6xL16mm
Key Attributes
Model Number:
RXF-2W-10R-J-T72
Product Description
Product Overview
The RXF series fuses from Dongguan Hongda Electronic Technology Co., Ltd. are insurance resistors designed for high surge capability and excellent fusing consistency. These compact and reliable components are easy to install and are widely used in electronic equipment such as light sources, switching power supplies, chargers, and home appliances. They have obtained various safety certifications including VDE, UL/CUL, and CQC.
Product Attributes
- Brand: Hongda ()
- Origin: Dongguan, China
- Product Type: Insurance Resistor ()
- Certifications: VDE (Certification No.: 40036858), UL/CUL (Certification No.: E359590), CQC (Certification Nos.: 0.5W-CQC13001095211, 1W-CQC13001095213, 2W-CQC13001095221)
Technical Specifications
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: 350 ppm
- Rated Current: I(A) = P(W)/R()
- Derating Curve: Refer to Figure 2 (Rated power is the maximum value for continuous operation at 70; derating is required above 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.
- Surge Performance: Tested according to Figure 3 (Switch K closed, K2 open; K1 repeatedly switched on/off 100 times for 2s on, 2s off). Resistor should not be open-circuited.
| Model | Rated Power (W) | Dimensions (mm) Dmax. Lmax. H1 d0.05 | Lead Allowable Length* (mm) | ||
|---|---|---|---|---|---|
| RXF 0.25, 0.5S, 1WX | 3.0 | - | 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 | - |
| Model | Rated Power (W) | Resistance Range () | Resistance Tolerance (%) | Insulation Voltage (DC or AC Peak) (V) | Component Limit 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 | 350 | - | - | |
| 2, 3S | 500 | 350 | - | - |
Main Test Items, Methods, and Performance Requirements:
| No. | Test Item | Test Method | Performance Requirements |
|---|---|---|---|
| 1 | Resistance | Measured by resistance error sorter. | Resistance value within nominal resistance and allowable deviation. |
| 2 | Short-time Overload | Apply 2.5 times rated voltage for 5S, recover 1-2h, measure resistance, calculate resistance change rate. | Resistance Change: R(2%R+0.05) |
| 3 | Solderability | Dip lead ends in solder pot (2605) for 20.5S, 2+0/-0.5mm from body. Observe solder coverage. | Over 90% surface coverage in circumferential direction of dipped 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, arcing. |
| 5 | Resistance to Soldering Heat | Measure resistance before test. Dip lead ends in solder pot (35010) for 3.50.5S, 2+0/-0.5mm from body. Recover 1h, measure resistance, calculate resistance change rate. | Resistance Change: R(1%R+0.05) |
| 6 | Rapid Temperature Change | Cycle: Low temp (-553) (30min), room temp (2-3min), high temp (1553) (30min), room temp (2-3min). Repeat 5 cycles. Recover 1-2h, measure resistance, calculate resistance change rate. | Resistance Change: R(1%R+0.05) |
| 7 | Endurance | Place in constant temperature oven (703), apply rated DC voltage. Cycle 1.5h on, 0.5h off for 1000h. Recover 1-4h, measure resistance, calculate resistance change rate. | Resistance Change: R(5%R+0.1) |
| 8 | Lead Strength | Tensile: 10N for 10S; Bending: Apply 5N load, tilt body ~90 in 2-3S, then bend 90 in opposite direction. Repeat twice. | 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 for 2h each (total 6h). Cycle: 1min (10-55-10Hz). Measure resistance after test, calculate change rate. | 1) Appearance: No mechanical damage. 2) Resistance Change: R(1%R+0.05) |
| 10 | Sequence of Humidity and Temperature | 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 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 (Figure 4, Table 5):
| Taping Specification | Dimensions (mm) U W P L1-L2 T Z R t S T26 |
|---|---|
| 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 |
Molded Product Style and Dimensions (Figure 5, 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 length 5 mm has tolerance of +2/-1 mm. Sleeve dimensions can be customized.
Formed Style and Dimensions (Figure 6, Table 7):
| Shape | Dimensions (mm) P1.0 H1 h0.5 |
|---|---|
| n Type | 5 3.5 8 3.5 |
| B Type | 5 3.5 8 3.5 |
| L Type | 12.5 4.5 14.5 5.5 |
Note: Formed shape and dimensions can be customized.
Model Specification Naming Convention (Example):
RXF 1W S 10 J
| Category | Description | Options |
|---|---|---|
| Rated Power | 0.25w, 0.5w, 1w, 2w, 3w | |
| Resistance Tolerance | J: 5%, K: 10%, M: 20% | |
| Nominal Resistance | E24 Series | See diagram below |
| Model | RXF | |
| Wirewound | S: Miniaturized, X: Ultra-miniaturized | |
| Color Code | First Digit, Second Digit, Third 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% |
2411041019_Hongda-RXF-2W-10R-J-T72_C2149623.pdf
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