PATCH RESISTOR
High power alloy current sense resistors designed for current detection. Featuring SMD surface mount installation, high power capability up to 3W, and ultra-low resistance values (down to 0.0005). Compliant with AEC-Q200 standards and RoHS/REACH certifications. Ideal for automotive electronics, current sensors, power supplies, battery chargers, mobile phones, computers, and consumer electronics.
Product Attributes
- Brand: JER (implied by part number example)
- Certifications: RoHS, REACH, AEC-Q200
Technical Specifications
| Type | Size | Rated Power (W) | Resistance Range (m) | Tolerance | TCR (ppm/) | Insulation Resistance (> M) | Operating Temperature Range () |
| 1206 | 1206 | 1 | 1~100 | F:1% | 1m: 350; 2m~100m: 50 | >100 | -55~+170 |
| 1206 | 1206 | 0.5 | 110~200 | F:1% | 50 | >100 | -55~+170 |
| 2512 | 2512 | 2 | 0.5~500 | F:1% | 1m~4m: 50; 0.5m: 350; 2m~500m: 50 | >100 | -55~+170 |
| 0805 | 0805 | 0.25 | 1~20 | F:1% | 1m: 350; 2m~20m: 50 | >100 | -55~+170 |
| 0805 | 0805 | 0.5 | 1~20 | F:1% | 1m: 350; 2m~20m: 50 | >100 | -55~+170 |
| 0805 | 0805 | 0.5 | 1~20 | F:1% | 1m: 350; 2m~20m: 50 | >100 | -55~+170 |
Dimensions
| Type | L (mm) | W (mm) | T (mm) | E (mm) |
| 1206 | 3.200.20 | 1.600.20 | 0.600.20 | 0.500.20 |
| 2512 | 6.400.20 | 3.200.20 | 0.800.20 | : 2.200.20; : 0.900.20 |
| 0805 | 2.000.20 | 1.250.20 | 0.600.20 | 0.400.20 |
Packaging Specification
| Type | Reel Diameter A (mm) | Hub Diameter B (mm) | Core Diameter C (mm) | Sprocket Hole Diameter F (mm) | Tape Width W (mm) | Q'ty/Reel |
| 1206 | 1782.00 | 60.001.00 | 13.500.50 | 11.400.10 | 9.000.30 | 5000 |
| 2512 | 1782.00 | 60.001.00 | 13.500.50 | 15.401.00 | 13.000.30 | 4000 |
| 0805 | 1782.00 | 60.001.00 | 13.500.50 | 11.400.10 | 9.000.30 | 5000 |
Suggested PCB Land Pattern
| Size | Resistance Range | a (mm) | b (mm) | L (mm) |
| 1206 | 1m~200m | 1.8 | 1.7 | 1.6 |
| 2512 | 0.5m~4m () | 4.0 | 3.1 | 1.8 |
| 2512 | 1m~500m | 4.0 | 2.1 | 4.1 |
| 0805 | 1m~20m | 1.4 | 1.2 | 1.4 |
Performance Reliability Test Methods
| Item | Test Method | Conditions | Specification |
| Short Time Overload | IEC60115-1 4.13 | Applied 5.0 times of rated power for 5 seconds. | R% 1% |
| Temperature Coefficient | IEC60115-1 4.8 | As per spec. | Refer to Spec. |
| Temperature Cycling | JESD22 Method JA-104 | 1000 Cycles (-55 to +125) | R% < 1% |
| High Temperature Exposure | MIL-STD-202 Method 108 | 1000 hrs. @T=125 | R% < 1% |
| Low Temperature Operation | IEC60115-1 4.23.4 | 45 min. @T=-55 | R% < 1% |
| Biased Humidity | MIL-STD-202 METHOD 103 | 1000 hours 85/85%RH (10% operating power) | R% 1% |
| Solderability | J-STD-002B test B | 245 5 for 2~3 sec. | Min 95% coverage |
| Operational Life | MIL-STD-202 METHOD 108 | 702, rated current for 1.5H, rest 0.5H, 1000 +48/-0 hours. | R% 1% |
| Resistance to Vibration | MIL-STD-202 METHOD 204 | 5g's for 20min, 12 cycles, 10-2000Hz | R% 1% |
| Resistance to Solder Heat | IEC60115-1 4.18 | 260 5 for 101 sec. | R% 1%, No visible damage |
| Terminal Bending | AEC-Q200-005 | Min 2mm deflection, 60 sec. | R% 1% |
| Mechanical Shock | MIL-STD-202 METHOD 213 | 100g's, 6ms, half sine shock pulse. | R% 1% |
| Terminal Strength | AEC-Q200-006 | Applied 17.7N (1.8Kg) for 601 seconds. | R% 1% |
| Thermal Shock | MIL-STD-202 METHOD 107 | -55/+125C, 300 cycles, 15 min dwell time. | R% 1% |
| Flammability | UL-94 | V-0 or V-1 acceptable. | Electrical test not required. |
| ESD Test | AEC-Q200-002 | 2KV, 2 times/1s | R% 1% |
2508221509_JIERR-JER2512F3R180_C49164920.pdf
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