ALMJ12 Current Sense Resistor
Description
- Proprietary processing technique produces extremely low resistance values
- Very low inductance
- Low thermal EMF
- Metallic Material
- ACE-Q200 qualified Current Sensing Resistor
Part Numbering System
| Parameter | Standard |
|---|---|
| Power Rating | 0.5 & 1W |
| Resistance Value | 1~200 mΩ |
| Operating Temperature Range | -55 to +170°C |
| Component Temperature Coefficient (TCR) | ±50 ppm/°C |
| Maximum Working Voltage (V) | (P × R)1/2 |
| Rating Current (A) | (P / R)1/2 |
P=Power Rating; R=Resistance Value
Standard Electrical Specifications
| Type | Rating Power at 70℃ | T.C.R. (ppm/℃) | Resistance Range (mΩ) 0.5%(D) 1.0%(F) 2.0%(G) 5.0%(J) | Material | Electrode | Operating Temperature (℃) |
|---|---|---|---|---|---|---|
| ALMJ12 | 1W | ±150 | 1 | MnCu | Wide | -55~+170°C |
| ±380 | 1.5 | Narrow | ||||
| ±100 | 2 & 2.5 | |||||
| ±50 | 3~100 | |||||
| 0.5W | ±50 | 101~200 | Karma | Narrow |
Resistance Values of the 1206 Series, 1W Resistors
| Standard Resistance Values ( Ω ) | 0 ohm | 0.001 ohm | 0.002 ohm | 0.003 ohm | 0.005 ohm | 0.01 ohm | 0.015 ohm | 0.02 ohm | 0.025 ohm | 0.03 ohm | 0.04 ohm | 0.05 ohm | 0.1 ohm | |||||||||||||||
| R000 | R001 | R002 | R003 | R005 | R010 | R015 | R020 | R025 | R030 | R040 | R050 | R100 | ||||||||||||||||
| Manufacturable Resistance Values ( Ω ) | 0.0015 ohm | 0.0025 ohm | 0.004 ohm | 0.0048 ohm | 0.006 ohm | 0.007 ohm | 0.008 ohm | 0.009 ohm | 0.011 ohm | 0.012 ohm | 0.013 ohm | 0.014 ohm | 0.018 ohm | 0.022 ohm | 0.024 ohm | 0.027 ohm | 0.033 ohm | 0.035 ohm | 0.039 ohm | 0.045 ohm | 0.047 ohm | 0.06 ohm | 0.068 ohm | 0.07 ohm | 0.075 ohm | 0.08 ohm | 0.082 ohm | 0.09 ohm |
| R0015 | R0025 | R004 | R0048 | R006 | R007 | R008 | R009 | R011 | R012 | R013 | R014 | R018 | R022 | R024 | R027 | R033 | R035 | R039 | R045 | R047 | R060 | R068 | R070 | R075 | R080 | R082 | R090 |
Dimensions
Unit: mm
| Type | Resistance Range (mΩ) | L | W | C | T |
|---|---|---|---|---|---|
| ALMJ12 | 1 | 3.2 ±0.2 | 1.6 ±0.2 | 1.2 ±0.2 (wide) | 0.7 ±0.15 |
| 2~200 | 3.2 ±0.2 | 1.6 ±0.2 | 0.5 ±0.2 (narrow) | 0.7 ±0.15 |
Recommended land pattern
Unit:mm
| Resistance Range (mΩ) | a | b | L |
|---|---|---|---|
| 1 | 1.8 ±0.1 | 2.3 ±0.1 | 1.0 ±0.1 |
| 2~200 | 1.8 ±0.1 | 1.7 ±0.1 | 1.6 ±0.1 |
Derating Curve
For resistors operated in ambient temperatures 70°C, power rating shall be derated inaccording with the curve below
IR Reflow-Soldering Profile
Wave- Soldering Profile
Product Characteristics
| Item | Test Condition/ Methods | Limited | Standard |
|---|---|---|---|
| Resistance | Measuring resistance value at room temperature 25℃ ±5℃ | Refer to Spec | IEC60115-1 4.5 |
| Temperature Coefficient of Resistance | TCR = (R-R0)/R0(T2-T1) × 10⁶ R0: resistance at room temperature R: resistance at 125℃ T1: room temperature T2: Temperature at 125℃ |
Refer to Spec | MIL-STD-202 Method 304 |
| Short Time Overload | 5 × Rated power for 5 seconds | ≤±0.5% | MIL-STD-202 Method 210 |
| Resistance to Soldering Heat | 260℃ ±5℃ time: 10sec± 1sec | ≤±0.5% | MIL-STD-202 Method 210 |
| Temperature Cycling | -55℃ (30min) / +150℃ (15min), 1000 cycles | ≤±0.5% | MIL-STD-202 Method 107G |
| Low Temperature Storage | -55℃ for 96 hours, No power | ≤±0.5% | MIL-STD-26E |
| High Temperature Storage | 170℃ for 1000 hours, No power | ≤±1% | IEC6011501-4.25 |
| Bias Humidity | +85℃, 85% RH, 10% bias 1000 hours | ≤±0.5% | MIL-STD-202 Method 103 |
| Terminal bending | It is soldered into a bendable test board and placedon a bending tester. A force of 2.5 kg is applied to the center of the test board to press it down by 2 mm. The resistance change rate is measured after maintaining the load for 60 seconds. | ≤±0.5% | JIS-C5201 |
| Solderability | Temperature of Solder: 245℃ ±5℃ Dipping time 3±1s | Solder coverage over 95% | IEC60115-1 4.17 |
| Load Life | 1000 h at 70℃, 1.5h "ON", 0.5h "OFF" | ≤±1% | JIS-C5201 |
Tapping & Package
Unit: mm
| Type | Pack | A ±0.2 | B ±0.2 | D0 +0.5/-0 | E ±0.1 | F ±0.05 | P0 ±0.1 | P1 ±0.1 | P2 ±0.1 | W ±0.2 | T ±0.15 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1206 | Paper | 2.00 | 3.60 | 1.50 | 1.75 | 3.50 | 4.00 | 4.00 | 2.00 | 8.00 | 0.81 |
Reel Specification
Unit: mm
| Type | A | B | C | D | M | W |
|---|---|---|---|---|---|---|
| 1206 | 2.00 ±0.5 | 13.5 ±0.5 | 21.00 ±0.5 | 60.00 ±1.0 | 178.00 ±2.0 | 9.00 ±0.5 |
Packaging
Quantity: 5, 000pcs
8mm wide tape on 178mm(7 inch)
diameter reel -specification EIA
Standard 481.