MFR1225A
Low-Resistance Metal Film Chip Resistor
Description
- Low Resistance / TCR / Inductance( ≤5 nH)
- Excellent long-term stability
- High precision current sensing
- High power capability
- Halogen free and lead free
- RoHS compliant
- AEC-Q200 compliant
Applications
- Consumer electronics
- Laptops
- Communication devices
- Measuring instrument
- Industrial / Power supply
- Battery pack
Part number
【1】Series Name: Low-Resistance Metal Film Chip Resistor
【2】Chip Size: 1225:1225, 1020: 1020, 0612: 0612
【3】Terminals: A:2 terminals
【4】Power Rating: 1=1W, 2=2W, 3 =3W
【5】Resistance Code: R100: 100mΩ, 1R50: 1.5Ω
【6】Resistance Precision: D:±0.5%, F:±1%, E:±2%, G:±5%
Electrical Characteristics
| Part number |
Power Rating at 70℃ (W) |
Resistance Range | TCR (ppm/°℃) |
Operation Temperature Range |
|
| 0.5% | 1.0%,2.0%,5.0% | ||||
| MFR1225A | 3 | 一 | 10mΩ≤R<20mΩ | ±150 | -55℃~+155℃ |
| 100mQ≤R<2Ω | 20mQ≤R<2Ω | ±100 | |||
| MFR1020A | 2 | ||||
| 一 | 10mΩ≤R<20mΩ | ±150 | |||
| MFR0612A | 1 | ||||
| 100mQ≤R<2Ω | 20mΩ≤R<2Ω | ±100 | |||
Physical Dimensions
Unit: mm
| Part number | L | W | H | I1 | 12 |
|---|---|---|---|---|---|
| MFR1225A | 3.20±0.20 | 6.30±0.20 | 0.55±0.15 | 0.60±0.25 | 0.80±0.25 |
| MFR1020A | 2.50±0.15 | 5.00±0.15 | 0.55±0.15 | 0.40±0.20 | 0.50±0.20 |
| MFR0612A | 1.60±0.15 | 3.20±0.20 | 0.55±0.15 | 0.30±0.20 | 0.50±0.20 |
Recommended Solder Pad Layout
Unit: mm
| Part number | A | B | C |
|---|---|---|---|
| MFR1225A | 1.20 | 5.20 | 7.00 |
| MFR1020A | 1.00 | 4.05 | 5.50 |
| MFR0612A | 0.50 | 2.60 | 3.20 |
Construction
| 1 | Alumina Substrate |
| 2 | Resistive Layer |
| 3 | Bottom Inner Electrode (Cu) |
| 4 | Top Inner Electrode |
| 5 | Bottom Protective Overcoat(White) |
| 6 | Top Protective Overcoat |
| 7 | Marking |
| 8 | Side Inner Electrode |
| 9 | Barrier Layer(Ni) |
| 10 | Solder coating(Sn) |
Power Derating Curve
For resistors operated in ambient temperatures 70°C, power rating shall be derated in according with the curve below:
Recommended Solder Curve
Wave solder Temperature condition
Solder reflow Temperature condition
Rework temperature (hot air equipment): 350°C, 3~5seconds
Recommended reflow methods: IR, vapor phase oven, hot air oven
If reflow temperatures exceed the recommended profile, devices may not meet the performance requirements.
Product Characteristics
| Item | Test condition/Methods | Limited | Standard |
|---|---|---|---|
| Temperature coefficient of resistance |
TCR=(R-R0)/R0(T2-T1)× 10⁶ R0:resistance of room temperature R:resistance of 125℃ T1:Room temperature T2:Temperature at 125℃ |
Refer to Spec | MIL-STD-202 Method 304 |
| Short time Overload | Standard power:6.25 times the rated power for 5 seconds High power (2X/4X)and wide terminal type:5 times the rated power for 5 seconds |
≤±1.0% | IEC60115-14.13 |
| Insulation Resistance |
100VDC for 1 minute. | ≥10GΩ | JIS-C-5201-146 IEC-60115-14.6 |
| Core Body Strength | Central part pressurizing force:10N, 10 seconds |
No broken | JIS-C5201-14.15 |
| Resistance to Soldering Heat |
260℃±5℃ time:10sec | ≤±1.0% No Visual damage |
JIS-C-5201-14.18 IEC-60115-14.18 |
| Solderability | 245℃±5℃ time:3sec | Solder coverage over 95%No Visual damage |
IEC60115-14.17 JIS-C-5201-14.17 |
| Leaching | 260℃±5℃ time:30sec | Solder coverage over 95%No Visual damage |
JIS-C-5201-14.18 IEC-60068-2-588.2.1 |
| Temperature Cycling |
-55℃(15min)/+155℃(15min),300 cycles | ±1.0% No Visual damage |
JIS-C-5201-14.19 |
| IEC-60115-14.19 | |||
| High Temperature |
155±5℃ for 1000hours,No power | ≤±1.0% | IEC60115-14.25 |
| Storage Bias Humidity |
1000 hours;+85℃,85%RH,10%of operating power,Measurement at 24±4 hours after test conclusion. |
≤±0.5% | MIL-STD-202 Method103 |
| Operational life | 70℃±2℃,1000 hours,at rated power 1.5 hours “ON”,0.5 hours "OFF” |
≤±1.0% | JIS-C-5201-14.24 |
| IEC-60115-1424 | |||
| Damp Heat with Load |
40℃±2℃,90-95%R.H.RCW or Max. 1000 hours,1.5 hours "ON”,0.5 hours“ OFF” |
≤±1.0% | JIS-C-5201-14.24 |
| IEC-60115-1424 | |||
Resistance to Solvent |
The tested resistor be immersed into isopropyl alcohol of 20~25℃ for 60 secs. Then the resistor is left in the room for 48 hrs |
≤±1.0% | JIS-C-5201-14.29 |
| Bending Strength | Bending once for 5 seconds: 1225/1020=2mm 0612=3mm |
±1.0% No Visual damage |
JIS-C-5201-14.33 IEC-60115-14.33 |
Note : Measurement at 24±4 hours after test conclusion for all reliability tests-parts.
Packaging
Embossed Dimensions
Unit: mm
| Type | A | B | W | E | F | G |
|---|---|---|---|---|---|---|
| MFR1225A | 3.40±0.2 | 6.70±0.2 | 12.0±0.1 | 1.75±0.1 | 5.5±0.05 | 4.0±0.1 |
| H | T | D | D1 | T1 | P | |
| 2.0±0.05 | 0.23±0.1 | 1.5+0.1/-0 | 1.5±0.1 | 0.85±0.15 | 4.0±0.1 |
| Type | A | B | W | E | F | G |
|---|---|---|---|---|---|---|
| MFR1020A | 2.80±0.2 | 5.60±0.2 | 12.0±0.1 | 1.75±0.1 | 5.5±0.05 | 4.0±0.1 |
| H | T | D | D1 | T1 | P | |
| 2.0±0.05 | 0.23±0.1 | 1.5+0.1/-0 | 1.5±0.1 | 0.85±0.15 | 4.0±0.1 |
Unit: mm
| Type | A | B | W | E | F | G |
|---|---|---|---|---|---|---|
| MFR0612A | 2.85±0.2 | 3.05±0.2 | 8.0±0.2 | 1.75±0.1 | 3.5±0.05 | 4.0±0.1 |
| H | T | D | P | |||
| 2.0±0.05 | 0.75±0.1 | 1.5+0.1/-0 | 4.0±0.1 | |||
Reel Dimensions
Unit: mm
| Type | SIZE | A | B | C | D | W | M |
|---|---|---|---|---|---|---|---|
| MFR1225A | 7 inch reel | 2.0±0.5 | 13.5±1.0 | 21±1.0 | 60.0±1.0 | 16.0±2.0 | 178±2.0 |
| MFR1020A | 7 inch reel | 2.0±0.5 | 13.5±1.0 | 21±1.0 | 60.0±1.0 | 16.0±2.0 | 178±2.0 |
| MFR0612A | 7 inch reel | 2.0±0.5 | 13.5±1.0 | 21±1.0 | 60.0±1.0 | 11.5±2.0 | 178±2.0 |
Quantity of Package
| Type | MFR1225A | MFR1020A | MFR0612A |
|---|---|---|---|
| Quantity(pcs) | 4000 | 4000 | 5000 |
Storage
Storage time at the environment temp: 25±5°C and humidity: 60±20% is valid for one year from the date of deliver.