Thick Film Chip Resistors KOA RK73B1HTTC225J Metal Glaze Ceramic Substrate Ideal Safety Reliability
THICK FILM CHIP RESISTORS RK73B
The RK73B series are thick film chip resistors designed for a wide range of applications. They feature a robust construction with a metal glaze thick film for excellent heat and weather resistance. These resistors are suitable for reflow and wave soldering and are RoHS compliant. They are ideal for use in automotive, medical, and aerospace equipment, as well as other applications where safety and reliability are critical.
Product Attributes
- Brand: KOA
- Product Type: Thick Film Chip Resistors
- Structure: Rectangular Chip Resistor
- Appearance Color: Black
- Material: Metal glaze thick film (protective film), Ceramic substrate
- Certifications: AEC-Q200 (excluding 1F)
- RoHS Compliance: EU RoHS compliant (lead-free terminals). Lead glass contained in electrodes, resistance film layer, and glass is not applicable to EU RoHS directive.
Technical Specifications
| Model (Size Code) | Dimensions (mm) L x W x t | Weight (g/1000pcs) | Rated Power | Operating Temp. Range | Rated Voltage | Resistance Range () | Tolerance | TC (x10^-6/K) | Max. Overload Voltage | Packaging (pcs/reel) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1F (0402/01005) | 0.4 x 0.2 x 0.13 | 0.04 | 0.03W | -55+125 | 20V | 19.1 (250), 1091k (250), 100k1M (200), 100k10M (200) | G:2%, J:5% | 200, 250, 0+300 | 30V | 40,000 (TCM), 20,000 (TBL) |
| 1H (0603/0201) | 0.6 x 0.3 x 0.23 | 0.14 | 0.05W | -55+155 | 25V | 19.1 (400), 1010M (200) | G:2%, J:5% | 200, 400 | 50V | 15,000 (TCM) |
| 1E (1005/0402) | 1.0 x 0.5 x 0.35 | 0.68 | 0.1W | -55+155 | 75V | 110M (200), 110M (200) | G:2%, J:5% | 200 | 100V | TPL: 20,000, TP: 10,000 |
| 1J (1608/0603) | 1.6 x 0.8 x 0.45 | 2.14 | 0.1W / 0.125W | -55+155 | - / - | 1.1k10M (200), 11M22M (400), 11k (200) | G:2%, J:5% | 200, 400 | - / - | TP: 10,000 |
| 2A (2012/0805) | 2.0 x 1.25 x 0.5 | 4.54 | 0.25W | -55+155 | 150V | 11M (200), 1.1M10M (400) | G:2%, J:5% | 200, 400 | 200V | TP: 10,000, TD: 5,000 |
| 2B (3216/1206) | 3.2 x 1.6 x 0.6 | 9.14 | 0.25W | -55+155 | 200V | 15.6M (200), 6.2M22M (400) | G:2%, J:5% | 200, 400 | 400V | TP: 10,000, TD: 5,000 |
| 2E (3225/1210) | - x 2.6 x 0.4 | - | 0.5W | -55+155 | - | 105.6M (200), 6.2M10M (400) | G:2%, J:5% | 200, 400 | - | TP: 5,000, TD: 4,000 |
| W2H (5025/2010) | 5.0 x 2.5 x 0.65 | 24.3 | 0.75W | -55+155 | - | 105.6M (200), 6.2M22M (400) | G:2%, J:5% | 200, 400 | - | TD: 4,000 |
| W3A (6432/2512) | 6.3 x 3.1 x - | 37.1 | 1.0W | -55+155 | 200V | 105.6M (200), 6.2M22M (400) | G:2%, J:5% | 200, 400 | 400V | TD: 4,000 |
| W3A2 (6432/2512) | 6.3 x 3.1 x - | - | 2.0W | -55+95 | 200V | 105.6M (200), 6.2M22M (400) | G:2%, J:5% | 200, 400 | 400V | TD: 4,000 |
Note: Dimensions for 'd' in W2H, W3A, W3A2 are 0.4 +0.2/-0.1 mm. Dimensions for 't' are not specified for W3A and W3A2.
The rated voltage is the smaller of the value calculated by rated power x nominal resistance and the maximum operating voltage in the table.
For jumper chip resistors, refer to the RK73Z series.
When using rated power, the temperature at both ends of the resistor must not exceed the rated terminal temperature. Please use the derating curve on the right side of the next page for terminal temperature.
For high power applications, component temperature may increase depending on the heat dissipation conditions of the substrate. Be sure to confirm the terminal temperature, product specifications, and precautions for use.
Specifications in this catalog are subject to change without notice. Please confirm carefully with the specifications before ordering and use.
For use in automotive, medical, aerospace equipment, or other devices where human safety or significant loss may occur, please contact us in advance.
www.koaglobal.com
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.