LMJ20
Description
- Thick copper conductor metallized material.
- Ultra long term stability.
- Halogen-free and lead-free RoHS compliant.
- Stable materials.
- Excellent trustworthiness.
- High power rating.
- Ultra-low temperature drift (good TCR).
Part Numbering System
| Parameter | Standard |
|---|---|
| Power Rating | 1 &1.5 W |
| Resistance Value | 1~100mΩ |
| Operating Temperature Range | -55 to +170°C |
Rated Current = (P / R)1/2；
P=Power Rating,R=Resistance Value.
Standard Electrical Specifications
| Type | Rating Power at 70℃ | T.C.R. (ppm/c) | Resistance Range(mΩ) 0.5%（D） 1.0%（F） 2.0%（G） 5.0%（J） | Meterial | Operating Temperature(℃) |
|---|---|---|---|---|---|
| LMJ20 | 1&1.5 W | ±50 | 1~4mΩ : S 1~100mΩ | CuMn | -55~+170°C |
construction
| Type | Resistance (mΩ ) | L | W | C | T |
|---|---|---|---|---|---|
| LMJ 20-S | 1~4 | 5.0 ±0.2 | 2.5±0.2 | 1.5±0.3 | 0.6±0.2 |
| Type | Resistance (mΩ ) | L | W | C | T |
|---|---|---|---|---|---|
| LMJ 20 | 1~ 100 | 5.0 ±0.2 | 2.5±0.2 | 0.6±0.3 | 0.6±0.2 |
Recommended land pattern
| Type | Resistance (mΩ ) | a | b | L |
|---|---|---|---|---|
| LMJ 20 | 1~100 | 3.4±0.2 | 1.5±0.2 | 3.5±0.2 |
| LMJ 20 - S | 1~4 | 3.4±0.3 | 3.5±0.2 | 2.0±0.2 |
Power Derating Curve
For resistors operated in ambient temperatures 70°C, power ratingshall bederated inaccording with the curve below:
Wave- Soldering Profile
Product Characteristics
| Item | Test condition/ Methods | Limited | Standard |
|---|---|---|---|
| Temperature coefficient of resistance | TCR =(R-R0)/R0(T2-T1)X 106 R0: resistance of room temperature R: resistance of 125℃ ; T1: Room temperature T2: Temperature at 125℃ | Refer to Spec | JIS-C 5201 |
| Short time Overload | 5 X rated power for 5s | ≤±0.5% | JIS-C5201-1 4.13 |
| Temperature Cycling | 1000 Cycle (-55℃ to 125℃) , 30 min at each extreme | ≤±0.5% | JESD22 Method JA-104 |
| Low temperature Storage | -55℃ for 1000 hours, No power | ≤±0.5% | JIS C 5201 |
| High Temperature Storage | 1000 hours at 125℃,No power | ≤±1% | MIL-STD-202 Method 108 |
| Biased Humidity | 85℃±5℃, 85±5% RH 10% bias, 1000 hours ，at rated power 1.5 hours “ON”, 0.5 hours “OFF” , after standing 24±4 hours to measure the resistance change rate. | ≤±0.5% | MIL-STD-202 Method 103 |
| Operational life | Apply the rated current to the 125±3℃ incubator for 1000 hours, and stand for 24±4 hours after removal to measure the resistance change rate. | ≤±0.5% | MIL-STD-202 Method 108 |
| Load Life | 70℃± 2℃, 1000 hours, at rated power 1.5 hours “ON”, 0.5 hours “OFF” , after taking it out and standing for more than 1 hour, the resistance change rate is measured. | ≤±1% | JIS-C5201 |
| Resistance to Solder Heat | 260℃± 5℃, time：10 ±1 sec, 1000 hours, after taking out and standing for more than 1 hour, measure the resistance change rate. | ≤±0.5% | MIL-STD-202 Method 210 |
| Solderability | Soak in the furnace at 245±5℃ for 3±1 sec .Take out and observe the solder area under a magnifying alass. | Solder coverage over 95%No Visual damage | J-STD-002 |
| Joint Strength of Solder | ◆ Test item (Bendability test) Weld in the bending test plate, place on the bending test machine, press in the center of the test plate, and measure under load. | ≤±0.5% | JIS-C5201-1 4.32 |
| ◆ Experiment item 2 (Fixation test) Weld the resistance in the rigidity test plate, place it on the end electrode test machine, apply the force in the direction of the force with the test probe with the radius of R0.5, and maintain 10 sec, and measure the resistance change rate under the load. | ≤±0.5% | JIS-C5201-1 4.32 |
Tapping & Package
| Type | Pack | A ±0.2 | B ±0.2 | D0 0.05+/-0 | E ±0.1 | F ±0.05 | P0 ±0.1 | P1 ±0.1 | P2 ±0.1 | W ±0.2 | D1 ±0.05 | T ±0.15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | Emboss | 2.80 | 5.30 | 1.50 | 1.75 | 5.50 | 4.00 | 4.00 | 2.00 | 12.00 | 1.50 | 0.85 |
Reel Specification
| Type | A | B | C | D | M | W |
|---|---|---|---|---|---|---|
| 2010 | 2.00±0.5 | 13.5±0.5 | 21.00±0.5 | 60.00±1.0 | 178.00±2.0 | 13.80±0.5 |
Packaging
Quantity: 4, 000pcs
Resistor Production Resource Pool
★：Common resistance values；
| LMJ20 series 2010 | ||||
|---|---|---|---|---|
| R005 | R010 | R030 | R050 | R100 |
| ★ | ★ | ★ | ★ | ★ |
√：Resistance values can be produced.
| LMJ20 series 2010 | |
|---|---|
| R002 | R003 |
| √ | √ |