Audited Supplier
1/4W
Fixed Resistor
Protective Resistor, Load Resistor
DIP Resistor
Metal Film Resistor
Throught Hole
Thermal Resistor
Single Connection
Cylinder
Linear Scale
Medical Apparatus and Instruments
Hqswe
1r-3r
5% 10%
HQSWE
Carton
1/4W
Guangdong, China
Product Description
| WATTS | L | D | H | d ±0.05m | PULLING (Kg) |
| MF1/8W /1/4WS | 3.5±0.3 | 1.8±0.3 | 28±2.0 | 0.38 | 2.5Kg-30S |
| MF1/4W / 1/2WS | 6.0±0.5 | 2.3±0.3s | 27±2.0 | 0.38 | 2.5Kg-30S |
| MF1/2W / 1WS | 9.0±1.0 | 3.5±0.5 | 26±2.0 | 0.48 | 2.5Kg-30S |
| MF1W / 2WS | 11.0±1.0 | 4.0±0.5 | 24±2.0 | 0.55 | 3Kg-30S |
| MF2W / 3WS | 15.0±1.0 | 5.0±0.5 | 33±2.0 | 0.65 | 5Kg-30S |
| MF3W /5WS | 17.0±1.0 | 6.0±0.5 | 32±2.0 | 0.7 | 5Kg-30S |
| MF5W | 24.0±1.0 | 8.0±1.0 | 28±2.0 | 0.8 | 5Kg-30S |
| ITEM (STANDARD) | PERFORMANCE AND/OR QUALIITY ACCEPTANCE | TEST METHOD |
Resistance value Vs Temperature Characteristics | ±100PPM/ºC | JIS-C-5202 5.2 Measure resistance (Ro ohm) at room Temperature(To ºC) Measure again the same at 100ºC Higher then room temperature R - RO 106 PPM = * RO (T0+100) -T0 |
| ITEM (STANDARD) | PERFORMANCE AND/OR QUALIITY ACCEPTANCE | TEST METHOD |
Short time overload | The resistance variation shall be within±(0.5% + 0.05ohm) and there Shall be no mechanical breakage | JIS-C-5202 5.5 Apply DC voltage 2.5times the rated Voltage for 5 seconds The leave at room temperature for 30 Minutes then measure MAX overload Voltage 0.50W - 700V (DC) |
Insulation resistance | 10,000M ohm or more | JIS-C-5202 5.6 in V-BLOCK Lay the resistor on 90° angle metal V Block apply 500VDC between resistor Lead and V block for one Minute And Measure |
Voltage endurance | The resistance variation shall be within±(0.5% + 0.05ohm) and there shall Be no mechanical breakage | JIS-C-5202 5.7 Icy the resistor on the 90° angle metal V Block and apply reamed AC voltage for One Minute. Test voltage 0.25W - 500V (AC) 0.50W -700V(AC) |
Intermittent overload | Resistance variation shall be Within ±(0.50% + 0.05ohm) | JIS-C-5202 5.8 Apply AC voltage 4 times the rated voltage for 1 second and rest for 25 seconds and Repeat this cycle for 10000±200times leave resistor 30 minutes at room temperature after test and measure Maximum voltage for intermittent Overload.0.50W - 700V(AC) |
| Terminal strength | Resistance variation shall be within ±(0.5% + 0.05ohm) also there Shall be on mechanical breakage | Pull test apply 2.5kg force to the lead in the direction of lead axisfor30±5 seconds. |
Heat resistively Against soldering | Resistance variation shall be within ± (0.25%+0.05ohm) also there Shall be on mechanical breakage | JIS-C-5202 7.10 Dip the lead in to a solder bath having a Temperature of 350ºC ± 10ºC up to 4±0.8mm from the body of the resistor and hold it for 3±0.5seconds leave the resistor at room temperature 3 hours after ,then Measure |
Load life test | The variation of the resistance Shall be within ± (1.5%+0.05ohm) Also there shall be no mechanical Breakage | JIS-C-5202 7.10 In the constant temperature chamber having Temperature70ºC ± 2ºC,apply rated Dc voltage for 1.5hour and shut voltage for 0.5 hour and repeat this cycle for 1000 hours,leave in room temperature hour after test, then measure |
EM (STANDARD) | PERFORMANCE AND/OR QUALITY ACCEPTANCE | TEST METHOK |
Solder ability | More than 95% of the surface of the lead shall be covered by new solder after the leads are dipped in the Solder | JIS-C-5202 6.5 Dip the lead in to a solder bath having a Temperature of 260ºC±5ºC up to 4±0.8mm from the body of the resistor and hold it for 5± 0.5seconds then inspect |
Humidity load test | Resistance variation be Within ± (1.5% + 0.05ohm) Also there shall be no mechanical breakage | JIS-C-5202 7.9 In temperature chamber having temperature 40ºC±2ºC,relative humidity 90 - 95%,Apply rated voltage 1.5hour and shut voltage 0.5 hour repeat this cycle for 1000 hours, leave in room temperature for hour after test, then measure |
