<
>
Specifications
Power(Watts):
100mW
Resistance:
47Ω
Voltage Rating:
75V
Temperature Coefficient:
±200ppm/℃
Operating Temperature:
-55℃~+155℃
Type:
Thick Film Resistor
Tolerance:
±5%
Mfr. Part #:
RK73B1ETTP470J
Package:
0402
Key Attributes
Model Number:
RK73B1ETTP470J
Product Description
THICK FILM CHIP RESISTORS RK73B
The RK73B is a thick film chip resistor designed for a wide range of applications. It features a robust construction with a protective film made of metal glaze thick film, providing excellent heat and weather resistance. These resistors are suitable for reflow and wave soldering processes and are RoHS compliant. They are widely used in automotive, medical, and aerospace equipment, as well as other applications where safety and reliability are paramount.
Product Attributes
- Brand: KOA
- Product Type: Thick Film Chip Resistors
- Series: RK73B
- Construction: Rectangular Chip Resistor
- Appearance Color: Black
- Material: Ceramic Substrate, Metal Glaze Thick Film, Nickel Plating, Solder Plating
- Certifications: AEC-Q200 (excluding 1F)
- Compliance: EU RoHS (Lead-free terminals, lead glass in electrodes, resistance film, and glass are exempt)
Technical Specifications
| Model (Size Code) | Dimensions (mm) L x W x t | Weight (g/1000pcs) | Rated Power (at 70C) | Max. Operating Temp. | Resistance Range () | Max. Operating Voltage | Max. Overload Voltage | TCR (10/K) | Packaging (pcs/reel) |
|---|---|---|---|---|---|---|---|---|---|
| 1F (0402/01005) | 0.40.02 x 0.20.02 x 0.130.02 | 0.04 | 0.03W | 125 | 19.1 (250), 1091k (200), 100k10M (200) | 20V | 30V | 200, 250, 0+300 | 40,000 (TCM), 20,000 (TBL) |
| 1H (0603/0201) | 0.60.03 x 0.30.03 x 0.230.03 | 0.14 | 0.05W | 125 | 19.1 (400), 1010M (200) | 25V | 50V | 200, 400 | 15,000 (TCM) |
| 1E (1005/0402) | 1.00.1 x 0.50.05 x 0.350.05 | 0.68 | 0.1W | 125 | 110M (200) | 75V | 100V | 200 | 20,000 (TPL), 10,000 (TP) |
| 1J (1608/0603) | 1.60.2 x 0.80.1 x 0.450.1 | 2.14 | 0.1W | 125 | 1.1k10M (200), 11M22M (400) | - | - | 200, 400 | 10,000 (TP) |
| 1J (0.125W) | 1.60.2 x 0.80.1 x 0.450.1 | 2.14 | 0.125W | 125 | 11k (200) | - | - | 200 | 10,000 (TP) |
| 2A (2012/0805) | 2.00.2 x 1.250.1 x 0.50.1 | 4.54 | 0.25W | 125 | 11M (200), 1.1M10M (400) | 150V | 200V | 200, 400 | 10,000 (TP), 5,000 (TD) |
| 2B (3216/1206) | 3.20.2 x 1.60.2 x 0.60.1 | 9.14 | 0.25W | 125 | 15.6M (200), 6.2M22M (400) | 200V | 400V | 200, 400 | 5,000 (TD) |
| 2E (3225/1210) | 3.20.2 x 2.50.2 x 0.60.1 | 15.5 | 0.5W | 125 | 15.6M (200), 6.2M10M (400) | - | - | 200, 400 | 5,000 (TD) |
| W2H (5025/2010) | 5.00.2 x 2.50.2 x 0.650.15 | 24.3 | 0.75W | 125 | 15.6M (200), 6.2M22M (400) | - | - | 200, 400 | 4,000 (TD) |
| W3A (6432/2512) | 6.30.2 x 3.10.2 | 37.1 | 1.0W | 125 | 15.6M (200), 6.2M22M (400) | 200V | 400V | 200, 400 | 4,000 (TD) |
| W3A2 (6432/2512) | 6.30.2 x 3.10.2 | 37.1 | 2.0W | 95 | 15.6M (200), 6.2M22M (400) | 200V | 400V | 200, 400 | 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) | - | 2.5x rated voltage for 5s (1E, 2B, W3A2: 2x rated voltage) |
| Soldering Heat Resistance | 0.5 (10R1M), 1 (R10, R1M) | - | 2605, 10s1s |
| Temperature Cycling | 1 (1F, Performance "A"), 0.5 (others) | 0.5 (1F, Performance "A"), 0.3 (others) | -55 (30min.)/+125 (30min.), 100 cycles (Performance "A": 1000 cycles) |
| Damp Heat Load | 2 (1J, 2A, 2B), 3 (others) | 0.75 (1J, 2A, 2B), 1 (others) | 402, 90%-95%RH, 1000h (1.5h ON, 0.5h OFF cycle) |
| Durability | 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) |
Power Derating Curves
Refer to the provided graphical data for power derating based on terminal temperature and ambient temperature.
Temperature Rise Data
Refer to the provided graphical data for temperature rise under various conditions.
Single Pulse Limiting Power Curve
Refer to the provided graphical data for single pulse limiting power based on pulse duration.
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, W3A2:2W
- Terminal Surface Material: T:Sn, G:Au, L:Sn/Pb
- 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
- Nominal Resistance Value: 3-digit code
- Resistance Tolerance: G:2%, J:5%
Usage Precautions
- The base material of chip resistors is alumina. Due to differences in thermal expansion coefficients with the mounting substrate, solder at 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.
- RK73B 1F resistors are susceptible to damage from static electricity generated during equipment assembly.
2403141437_KOA-RK73B1ETTP470J_C159883.pdf
Request A Quote
Please Use Our Online Inquiry Contact Form Below If You Have Any Questions, Our Team Will Get Back To You As Soon As Possible
