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Specifications
Power(Watts):
100mW
Resistance:
1kΩ
Voltage Rating:
75V
Temperature Coefficient:
±200ppm/℃
Operating Temperature:
-55℃~+155℃
Type:
Thick Film Resistor
Tolerance:
±5%
Mfr. Part #:
RK73B1ETTP102J
Package:
0402
Key Attributes
Model Number:
RK73B1ETTP102J
Product Description
THICK FILM CHIP RESISTORS RK73B
The RK73B series are thick film chip resistors featuring a robust product lineup from 0402 to 6432 sizes. Constructed with a metal glaze thick film for superior heat and weather resistance, these resistors are suitable for reflow and wave soldering. They are RoHS compliant with lead-free terminals, and lead in electrodes, resistive film, and glass is exempt from EU RoHS directives. AEC-Q200 data is available for most models.
Product Attributes
- Brand: KOA
- Product Type: Thick Film Chip Resistors
- Construction: Metal glaze thick film
- Appearance Color: Black
- Certifications: AEC-Q200 (excluding 1F), EU RoHS compliant
- Terminal Material: T: Sn, G: Au3 (L: Sn/Pb4)
- Origin: Japan (implied by manufacturer and typical industry practice, but not explicitly stated in provided text)
Technical Specifications
| Model (Size Code) | Dimensions (mm) L x W x d x t | Weight (g/1000pcs) | Rated Power | Operating Temp. Range | Resistance Value Range () | Tolerance | Max. Operating Voltage | Max. Overload Voltage | Taping Quantity/Reel (pcs) |
|---|---|---|---|---|---|---|---|---|---|
| 1F (0402/01005) | 0.40.02 x 0.20.02 x 0.110.03 x 0.130.02 | 0.04 | 0.03W | -55+125 | 19.1 (250), 1091k (250), 100k10M (200) | G:2%, J:5% | 20V | 30V | 40,000 (TCM), 20,000 (TBL) |
| 1H (0603/0201) | 0.60.03 x 0.30.03 x 0.150.05 x 0.230.03 | 0.14 | 0.05W | -55+155 | 19.1 (400), 1010M (200) | G:2%, J:5% | 25V | 50V | 15,000 (TCM) |
| 1E (1005/0402) | 1.0+0.1-0.05 x 0.50.05 x 0.25+0.05-0.1 x 0.350.05 | 0.68 | 0.1W | -55+155 | 110M (200) | G:2%, J:5% | 75V | 100V | 20,000 (TPL), 10,000 (TP) |
| 1J (1608/0603) | 1.60.2 x 0.80.1 x 0.30.1 x 0.450.1 | 2.14 | 0.1W / 0.125W | -55+155 | 11k (0.125W, 200), 1.1k10M (0.1W, 200), 11M22M (0.1W, 400) | G:2%, J:5% | - | - | 10,000 (TP)6, 5,000 (TCM) |
| 2A (2012/0805) | 2.00.2 x 1.250.1 x 0.3+0.2-0.1 x 0.50.1 | 4.54 | 0.25W | -55+155 | 11M (200), 1.1M10M (400) | G:2%, J:5% | 150V | 200V | 10,000 (TP)6, 5,000 (TCM), 4,000 (TD)6 |
| 2B (3216/1206) | 3.20.2 x 1.60.2 x 0.4+0.2-0.1 x 0.60.1 | 9.14 | 0.25W | -55+155 | 15.6M (200), 6.2M22M (400) | G:2%, J:5% | 200V | 400V | 5,000 (TCM), 4,000 (TD)6 |
| 2E (3225/1210) | - x - x 0.4+0.2-0.1 x - | 15.5 | 0.5W | -55+155 | 15.6M (200), 6.2M10M (400) | G:2%, J:5% | - | - | 5,000 (TCM), 4,000 (TD)6 |
| W2H (5025/2010) | 5.00.2 x 2.50.2 x 0.650.15 x - | 24.3 | 0.75W | -55+155 | 15.6M (200), 6.2M22M (400) | G:2%, J:5% | - | - | 4,000 (TD) |
| W3A (6432/2512) | 6.30.2 x 3.10.2 x - x - | 37.1 | 1.0W | -55+155 | 15.6M (200), 6.2M22M (400) | G:2%, J:5% | 200V | 400V | 4,000 (TD) |
| W3A2 (6432/2512) | 6.30.2 x 3.10.2 x - x - | - | 2.0W5 | -55+155 (Rated Terminal Temp: 95) | 15.6M (200), 6.2M22M (400) | G:2%, J:5% | 200V | 400V | 4,000 (TD) |
Performance
| Test Item | Standard Value | Guaranteed Value | Test Method |
|---|---|---|---|
| Resistance Value | Within specified tolerance | R(0.1) | 25 |
| Temperature Coefficient of Resistance | Within specified value | - | +25/-55, +25/+125 |
| Overload (Short time) | 1:1F, 0.5:others | - | Apply 2.5 times rated voltage for 5s (2 times for 1E, 2B, W3A2) |
| Resistance to Soldering Heat | 1:1FW3A2 (10R1M), 3:1FW3A2 (R10, R1M) | 0.5:1FW3A2 (10R1M), 1:1FW3A2 (R10, R1M) | 2605, 10s1s |
| Temperature Cycling | 1:1F, Performance "A" (Heat Shock); 0.5:others | 0.5:1F, Performance "A" (Heat Shock); 0.3:others | -55 (30min.)/+125 (30min.), 100 cycles (Standard); 1000 cycles (Heat Shock) |
| Damp Heat Load | 2:1J, 2A, 2B; 3:others | 0.75:1J, 2A, 2B; 1.5:1F; 1:others | 402, 90%95%RH, 1000h (1.5h ON, 0.5h OFF cycle) |
| Endurance | 2:1J, 2A, 2B; 3:others | 0.75:1J, 2A, 2B; 1:others | 702 or Rated Terminal Temp. 2, 1000h (1.5h ON, 0.5h OFF cycle) |
| High Temperature Storage | 1 | 0.5:1F; 0.3:others | +125, 1000h (1F); +155, 1000h (others) |
Derating Curves
Power Derating Curve (Ambient Temperature)
Power Derating Curve (Terminal Temperature)
Temperature Rise Data
Single Pulse Limiting Power Curve
Product Name Composition Example
RK73B 2B T TD 103 J
- Variety: RK73B
- Rated Power: 1F:0.03W, 1H:0.05W, 1E:0.1W, 1J:0.1W/0.125W, 2A:0.25W, 2B:0.25W, 2E:0.5W, W2H:0.75W, W3A:1W, W3A2:2W4
- Nominal Resistance Value: 3-digit
- Resistance Tolerance: G:2%, J:5%
- Secondary Processing: TX: Embossed tape (1mm pitch), TBL/TCM: Paper tape (2mm pitch), TPL/TP: Paper tape (2mm pitch), TD: Paper tape (4mm pitch), TE: Embossed tape (4mm pitch), BK: Bulk
- Terminal Surface Material: T:Sn, G:Au3, L:Sn/Pb4
- Performance: Blank: Standard, A: Heat Shock Resistance2
Usage Precautions
- The base material of chip resistors is alumina. Due to different thermal expansion coefficients from the mounting substrate, solder in the joint (welded part) may crack under repeated thermal stress such as thermal cycling. This is particularly noticeable in larger sizes (W2H/W3A/W3A2) due to greater thermal expansion and self-heating. Careful design is needed when environmental temperatures fluctuate significantly or when load is repeatedly switched ON/OFF.
- RK73B 1F resistors are susceptible to damage from static electricity generated during equipment assembly.
Note: Specifications may change without notice. Please confirm with the latest datasheet before ordering or use. For applications involving human safety or significant loss, please contact KOA Global.
2403141437_KOA-RK73B1ETTP102J_C159872.pdf
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