AMFR0508
Low-Resistance Metal Film Chip Resistor
Applications
- Consumer electronics
- Computer & relative products
- Communication devices
- Measuring instrument
- Industrial / Power supply
- Battery management system
-
AEC-Q200 qualified Current Sensing Resistor
Features
- Low Resistance / TCR / Inductance(≦5NH)
- Excellent long-term stability
- High precision current sensing
- High power capability
- Halogen free and lead free
- RoHS compliant
- AEC-Q200 compliant
Part Numbering System
| Type | Rating Power at 70℃ |
T.C.R. (ppm/℃) |
Resistance Range(mΩ) | Meterial | Operating Temperature(℃) |
|
| D:0.5% | F:1.0%,G:2.0% J:5.0% |
|||||
| 0508 | 1W | ±100 | 100mQ≤R≤2Ω | 10mQ≤R≤2Ω | Metal Alloy | -55~+155℃ |
| 0612 | ||||||
| 1225 | 3W | ±100 | ||||
Construction
Unit: mm
| Type | L | W | H | l1 | I2 |
|---|---|---|---|---|---|
| 0508 | 1.25±0.10 | 2.00±0.10 | 0.55±0.15 | 0.25±0.15 | 0.35±0.15 |
| 0612 | 1.60±0.15 | 3.20±0.20 | 0.55±0.15 | 0.30±0.20 | 0.50±0.20 |
| 1225 | 3.20±0.20 | 6.30±0.20 | 0.55±0.15 | 0.60±0.25 | 0.80±0.25 |
Recommended land pattern
Unit: mm
| Type | A | B | C |
|---|---|---|---|
| 0508 | 0.4 | 1.8 | 2.0 |
| 0612 | 0.5 | 2.6 | 3.2 |
| 1225 | 1.2 | 5.2 | 7.0 |
Product Characteristics
| Item | Test condition/Methods | Limited |
|---|---|---|
| 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 |
| Short time Overload | Standard power:6.25 times rated power whichever is less for 5 seconds. |
±(1.0%+0.001Ω) |
| High power (2X/4X)and wide terminal type:5 times rated power whichever is less for 5 seconds. |
||
| Resistance to Soldering Heat |
260±5℃ for 10 seconds. | ±(1.0%+0.001Ω2) No Visual damage |
| Temperature Cycling | -55℃ to+155℃,300 cycles | ±(1.0%+0.001Ω) No Visual damage |
| High Temperature Exposure |
At 155±5℃ for 1000 hours. | ±(1.0%+0.001Ω) |
| Bias Humidity | 1,000 hours;85℃/85%RH,10%of operating power.Measurement at 24±4 hours after test conclusion. |
±(0.5%+0.05Ω) |
| Leaching | 260±5℃ for 30 seconds. | >95%Coverage No Visual damage |
| Insulation Resistance | Apply 100VDC for 1 minute. | ≥10GΩ |
| Damp Heat with Load |
40±2℃,90~95%R.H.RCW or Max.working current whichever is less for 1000 hrs with 1.5 hrs "ON"and 0.5 hr "OFF" |
±(1.0%+0.001Ω) |
| Solderability | 245±5℃ for 3 seconds. | >95%Coverage No Visual damage |
| Load Life (Endurance) |
70±2℃,Rated power,or Max.working current whichever is less for 1000 hrs with 1.5 hrs "ON" and 0.5 hr“OFF”. |
±(0.5%+0.05Ω) |
| 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%+0.001Ω) No Visual damage |
| Bending Strength | Bending once for 5 seconds D:0508/0612=3mm 1225=2mm |
±(1.0%+0.001Ω) No Visual damage |
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
The Operating Temperature Range: -55°C ~+155°C.
Power rating or current rating is in the case based on continuous full-load at ambient
temperature of 70°C. For operation at ambient temperature in excess of 70°C, the load
should be derated in accordance with figure of derating Curve.
Wave solder Temperature condition
Solder reflow Temperature condition
Rework temperature（hot air equipment）：350℃, 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.
Tapping & Package
Unit: mm
| Type | A ±0.2 |
B ±0.2 |
W +0.2 |
E ±0.1 |
F ±0.05 |
G ±0.1 |
H ±0.05 |
T ±0.1 |
D | P ±0.1 |
|---|---|---|---|---|---|---|---|---|---|---|
| 0508 | 1.55 | 2.3 | 8.0 | 1.75 | 3.5 | 4.0 | 2.0 | 0.75 | 1.50±0.1 | 4.0 |
| 0612 | 1.9 | 3.05 |
Unit: mm
| Type | A ±0.2 |
B ±0.2 |
W +0.1 |
E ±0.1 |
F ±0.05 |
G ±0.1 |
H ±0.05 |
T ±0.1 |
D | D1 ±0.1 |
T1 ±0.15 |
P ±0.1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1225 | 3.4 | 6.7 | 12.0 | 1.75 | 5.5 | 4.0 | 2.0 | 0.23 | 1.50±0.1 | 1.5 | 0.85 | 4.0 |
Reel Specification
Unit: mm
| Type | Quantity (pcs) |
A | B | C | D | W | M |
|---|---|---|---|---|---|---|---|
| 0508 | 5,000 | 2.0±0.5 | 13.5±1 | 21±1 | 60±1 | 11.5±2 | 178±2 |
| 0612 | 5,000 | ||||||
| 1225 | 4,000 | 16.0±2 |
Storage Data：
Storage time at the environment temp: 25±5℃& humidity: 60±20% is valid for one year from the date of delivery