Welding Resistance Specification
This specification outlines the Welding Resistance Series from Yuanhui Electronics Technology (Jiangsu) Co., Ltd. These resistors comply with ROHS requirements and are tested according to vehicle-specific AEC-Q200 standards, making them suitable for automotive applications.
Product Attributes
- Brand: YHR
- Origin: Yuanhui Electronics Technology (Jiangsu) Co., Ltd.
- Certifications: ROHS, AEC-Q200
Technical Specifications
| Product Type | Resistor Size | Power (W) | Resistance Tolerance | Resistance Range (m) | Construction Dimension (W x A x C x H) (mm) | Electrical Specifications (Rthi, D0.1, TCR) | P70 C (W) |
|---|---|---|---|---|---|---|---|
| WE (Welding) | 2512 | 3 | 0.5%/1%/2%/5% | 0.2~5 | 6.30.2 x 1.20.2 x 3.10.3 x 0.50.1 | S: 0.2m (Rthi 3, D 1.4, TCR 175), M: 0.3m (Rthi 5, D 1.5, TCR 175), M: 0.5m (Rthi 6, D 0.93, TCR 115), M: 1m (Rthi 10, D 0.45, TCR 100), K/F: 1.2m (Rthi -, D 1.08, TCR 70), K/F: 1.5m (Rthi -, D 0.86, TCR 70), M: 2m (Rthi 15, D 0.65, TCR 70), K/F: 2.5m (Rthi -, D 0.5, TCR 70), M: 3m (Rthi 24, D 0.43, TCR 70), K/F: 4m (Rthi 27, D 0.31, TCR 70), M: 5m (Rthi 40, D 0.28, TCR 70) | 6 (for 0.2-0.5m), 5 (for 1-5m) |
| WE (Welding) | 3920 | 5 | 0.5%/1%/2%/5% | 0.2~5 | 10.00.2 x 2.20.2 x 5.10.4 x 0.50.1 | M: 0.2m (Rthi 3, D 1.64, TCR 200), M: 0.3m (Rthi 3.5, D 1.37, TCR 150), M: 0.4m (Rthi -, D 0.97, TCR 100), M: 0.5m (Rthi 7, D 0.83, TCR 70), M: 0.7m (Rthi 9, D 0.55, TCR 70), K/F: 1m (Rthi 7, D 1.16, TCR 50), K/F: 1m (Rthi 10, D 0.4, TCR 50), K/F: 1.5m (Rthi -, D 0.75, TCR 50), M: 2m (Rthi 14.5, D 0.56, TCR 50), K/F: 2.5m (Rthi -, D 0.47, TCR 50), M: 3m (Rthi 22, D 0.37, TCR 50), K/F: 4m (Rthi 24, D 0.28, TCR 50), M: 5m (Rthi -, D 0.28, TCR 50) | 12 (for 0.2-0.4m), 10 (for 0.5-5m) |
| WE (Welding) | 5930 | 7 | 0.5%/1%/2%/5% | 0.1~3 | 15.00.3 x 4.20.3 x 7.60.4 x 0.50.1 | S: 0.1m (Rthi 2, D 2.0, TCR 200), M: 0.2m (Rthi 3, D 1.5, TCR 100), M: 0.3m (Rthi -, D 0.98, TCR 100), M: 0.35m (Rthi -, D 0.83, TCR 100), M: 0.4m (Rthi -, D 0.75, TCR 100), M: 0.5m (Rthi 3.5, D 0.6, TCR 75), M: 0.6m (Rthi -, D 0.5, TCR 75), M: 0.75m (Rthi 6, D 0.41, TCR 75), K/F: 1m (Rthi 7, D 0.86, TCR 50), K/F: 1.5m (Rthi 10, D 0.61, TCR 50), M: 2m (Rthi 13, D 0.4, TCR 50), K/F: 2.5m (Rthi -, D 0.34, TCR 50), M: 3m (Rthi 17.5, D 0.29, TCR 50) | 15 (for 0.1-0.35m), 10 (for 0.4-3m) |
Reliability Tests
| Test Item | Additional Requirements | Reference | Limits |
|---|---|---|---|
| Dimension | Verified according to the specification. | GB/T 5729-1994-4.4.2 | As Spec |
| High Temperature Exposure | 1000 hrs. (T =170C), unpowered. Measurement at 244 hours after test conclusion. | MIL-STD-202 Method 108 | 0.5% |
| Temperature Cycling | 1000 Cycles(-55C to +155C), unpowered. Minimum dwell time 15min. at each temperature extreme. maximum transition time1 min. Measurement at least 24hours after test conclusion. | JESD22-A-104 | 0.5% |
| Humidity Bias | 1000hrs. (85/85%RH). Note: Specify conditions: 10% of Long-term operating current. Measurement at 244 Hours after test conclusion. | MIL-STD-202 Method 103 | 0.5% |
| High Temperature Operating Life | 1000 hrs.(T =125C). Long-term operating current was applied to the products intermittently: 90 minutes ON and 30 minutes OFF. Measurement at 244 hours after test conclusion. | MIL-STD-202 Method 108 | 0.5% |
| Resistance to Soldering Heat | 2505, 30s5s | MIL-STD-202 Method 210 | 0.5% |
| Solderability | 1) Steam ageing for 8 hours (93C); 2) Weld bath temperature 245C5C, duration 50.5S. | J-STD-002 | 95% Coverage Minimum |
| Vibration | 20 min.(5 g's), test from 10Hz-2000 Hz, 12 cycles each of 3 orientations. | MIL-STD-202 Method 204 | 0.5% |
| Board Flex Test | Apply an external force once to the circuit board, bend at least Dx = 2mm, duration 60+5 S. | AEC-Q200-005 | 0.5% |
| Terminal Strength (SMD) | Apply an external force once to the side of the test device, the force is 17.7N(1.8kg), duration 60+1S. | AEC-Q200-006 | 0.5% |
| Mechanical Shock | 1) Pulse waveform: Half-Sine pulse; 2) Accelerate peak: 100g's; 3) Pulse duration: 6ms; 4) Orientation & Shock time: X, Y, Z, 3 times each orientation, total 18 times. | MIL-STD-202H Method 213 | 0.5% |
| ESD | 1) Direct Contact (DC): 6kV ; 2) Air Discharge (AD): 12kV, 16kV, 25kV. | AEC-Q200-002 REV-B | 0.5% |
| Resistance to Solvents | Note: Add Aqueous wash chemical - OKEM Clean or equivalent. Do not use banned solvents. | MIL-STD-202 Method 215 | There was no missing, faded, smeared, blurred, or shifted (dislodged) with the marks. There was no crack, separation, crazing, swelling, softening, degradation on the samples. |
| Flame Retardance | 1) Test current: 100%, 115%, 130%, 150% (Long-term operating current). 2) Test duration: 1h. | AEC-Q200-001 | The temperature is not higher than 350 C for more than 10 seconds, no flame, no explosion. |
Tape Packaging Dimensions
| SIZE | Resistance Alloy Resistance Range (m) | A 0.15 | B 0.15 | W 0.3 | E 0.15 | F 0.15 | Po 0.15 | P 0.15 | P 0.15 | D 0.15 | T 0.15 | Quantity (pcs) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2512 | S: 0.2 | 3.6 | 6.7 | 16 | 1.75 | 7.5 | 2 | 4 | 8 | 1.5 | 1000 | Depends on the thickness of the product |
| M: 0.3 | 3.7 | 6.9 | 16 | 1.75 | 7.5 | 2 | 4 | 8 | 1.5 | 1000 | ||
| 0.5 | 3.5 | 6.7 | 12 | 1.75 | 5.5 | 2 | 4 | 4 | 1.5 | 2000 | ||
| 0.6~1 | 3.5 | 6.7 | 12 | 1.75 | 5.5 | 2 | 4 | 4 | 1.5 | 3000 | ||
| K/F: 1.1~1.5 | 3.5 | 6.7 | 12 | 1.75 | 5.5 | 2 | 4 | 4 | 1.5 | 2000 | ||
| 1.5~5 | 3.5 | 6.7 | 12 | 1.75 | 5.5 | 2 | 4 | 4 | 1.5 | 3000 | ||
| 3920 | M: 0.2 | 5.8 | 10.6 | 24 | 1.75 | 11.5 | 2 | 4 | 12 | 1.5 | 2000 | |
| 0.3 | 5.6 | 10.65 | 24 | 1.75 | 11.5 | 2 | 4 | 12 | 1.5 | 1500 | ||
| 0.4 | 5.8 | 10.5 | 24 | 1.75 | 11.5 | 2 | 4 | 12 | 1.5 | 2500 | ||
| 0.5 | 5.7 | 10.4 | 16 | 1.75 | 7.5 | 2 | 4 | 12 | 1.5 | 2500 | ||
| 0.7~1 | 5.8 | 10.5 | 16 | 1.75 | 7.5 | 2 | 4 | 12 | 1.5 | 2500 | ||
| K/F: 1 | 5.8 | 10.5 | 24 | 1.75 | 11.5 | 2 | 4 | 12 | 1.5 | 2500 | ||
| 1.5~5 | 5.8 | 10.5 | 16 | 1.75 | 7.5 | 2 | 4 | 12 | 1.5 | 2500 | ||
| 5930 | S: 0.1 | 8.5 | 15.7 | 24 | 1.75 | 11.5 | 2 | 4 | 12 | 1.5 | 1000 | |
| M: 0.2 | 8.5 | 15.7 | 24 | 1.75 | 11.5 | 2 | 4 | 16 | 1.5 | 1000 | ||
| 0.3~0.35 | 8.5 | 15.7 | 24 | 1.75 | 11.5 | 2 | 4 | 16 | 1.5 | 1500 | ||
| 0.4~0.5 | 8.1 | 15.5 | 24 | 1.75 | 11.5 | 2 | 4 | 12 | 1.5 | 2000 | ||
| 0.6~0.8 | 8.5 | 15.7 | 24 | 1.75 | 11.5 | 2 | 4 | 12 | 1.5 | 2000 | ||
| K/F: 1 | 8.1 | 15.5 | 24 | 1.75 | 11.5 | 2 | 4 | 12 | 1.5 | 2000 | ||
| 2~3 | 8.5 | 15.7 | 24 | 1.75 | 11.5 | 2 | 4 | 12 | 1.5 | 2000 |
Reel Dimensions
| SIZE | A | B | C | W | T |
|---|---|---|---|---|---|
| 2512 | 178 | 60 | 13 | 12.5 | 21 |
| 203 | 60 | 13 | 16.5 | 21 | |
| 3920 | 330 | 100 | 13 | 24.5 | 29 |
| 330 | 100 | 13 | 16.5 | 21 | |
| 5930 | 330 | 100 | 13 | 24.5 | 29 |
Solder Pad Size
| Solder Pad Type | w | c | a | b |
|---|---|---|---|---|
| YHR-S/ M/ K/ F-3 | 7 | 3.4 | 1.8 | 3.4 |
| YHR-S/ M/ K/ F- 5 | 11 | 6.2 | 2.7 | 5.6 |
| YHR-S/ M/ K/ F-7 | 16 | 8.75 | 5.2 | 5.6 |
Version History
| Version | Date | Description of amendment |
|---|---|---|
| A1.0 | 04-May-2024 | First release |
| A2.0 | 06-JAN-2025 | 1. Updated some 5930 and 3920 tape information 2. Updated some 3920 product information |
2504271929_Yohey-YHR2512WE5WR004F3_C46628732.pdf
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