Metal Glaze Thick Film Chip Resistor KOA RK73B1HTTC150J Ceramic Substrate Rectangular Chip Component
THICK FILM CHIP RESISTORS RK73B
The RK73B series are thick film chip resistors designed for robust performance and a wide range of applications. Featuring a metal glaze thick film for excellent heat and weather resistance, these resistors are suitable for reflow and wave soldering. They are available in a comprehensive size lineup from 0402 to 6432. The product line adheres to EU RoHS standards with lead-free terminals, and lead glass in electrodes, resistive film layers, and glass are exempt from EU RoHS directives. AEC-Q200 data is available for most models.
Product Attributes
- Brand: KOA
- Product Type: Thick Film Chip Resistors
- Structure: Rectangular Chip Resistor
- Appearance Color: Black
- Material: Ceramic Substrate, Metal Glaze Thick Film
- Certifications: EU RoHS compliant (terminals lead-free), AEC-Q200 (except 1F)
- Reference Standards: IEC 60115-8, JIS C 5201-8, EIAJ RC-2134C
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 | Max. Operating Voltage | Max. Overload Voltage | Resistance Tolerance | Temp. Coefficient (x10-6/K) | Packaging (pcs/reel) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1F (0402/01005) | 0.4 x 0.2 x 0.11 x 0.13 | 0.04 | 0.03W | -55+125 | 19.1k (250), 10k10M (200) | 20V | 30V | G:2%, J:5% | 200, 250, 0+300 | TCM: 15,000, TX: 40,000 |
| 1H (0603/0201) | 0.6 x 0.3 x 0.15 x 0.23 | 0.14 | 0.05W | -55+155 | 19.1 (400), 1010M (200) | 25V | 50V | G:2%, J:5% | 200, 400 | TCM: 15,000 |
| 1E (1005/0402) | 1.0 x 0.5 x 0.25 x 0.35 | 0.68 | 0.1W | -55+155 | 110M | 75V | 100V | G:2%, J:5% | 200 | TPL: 20,000, TP: 10,000 |
| 1J (1608/0603) | 1.6 x 0.8 x 0.3 x 0.45 | 2.14 | 0.1W / 0.125W | -55+155 | 11k (0.125W), 1.1k22M (0.1W) | - | - | G:2%, J:5% | 200, 400 | TP: 10,000 |
| 2A (2012/0805) | 2.0 x 1.25 x 0.3 x 0.5 | 4.54 | 0.25W | -55+155 | 11M (200), 1.1M10M (400) | 150V | 200V | G:2%, J:5% | 200, 400 | TP: 10,000, TD: 5,000 |
| 2B (3216/1206) | 3.2 x 1.6 x 0.4 x 0.6 | 9.14 | 0.25W | -55+155 | 15.6M (200), 6.2M22M (400) | 200V | 400V | G:2%, J:5% | 200, 400 | TP: 10,000, TD: 5,000 |
| 2E (3225/1210) | 3.2 x 2.5 x 0.4 x 0.6 | 15.5 | 0.5W | -55+155 | 15.6M (200), 6.2M10M (400) | - | - | G:2%, J:5% | 200, 400 | TP: 10,000, TD: 5,000 |
| W2H (5025/2010) | 5.0 x 2.5 x 0.65 x - | 24.3 | 0.75W | -55+155 | 15.6M (200), 6.2M22M (400) | - | - | G:2%, J:5% | 200, 400 | TD: 4,000 |
| W3A (6432/2512) | 6.3 x 3.1 x - x - | 37.1 | 1.0W | -55+155 | 15.6M (200), 6.2M22M (400) | 200V | 400V | G:2%, J:5% | 200, 400 | TD: 4,000 |
| W3A2 (6432/2512) | 6.3 x 3.1 x - x - | 37.1 | 2.0W5 | -55+95 | 15.6M (200), 6.2M22M (400) | 200V | 400V | G:2%, J:5% | 200, 400 | TD: 4,000 |
Performance Characteristics
| Test Item | Test Method | Guaranteed Value | Typical Value |
|---|---|---|---|
| Resistance Value | - | Within specified tolerance | - |
| Temperature Coefficient of Resistance | 25 | Within specified value | - |
| Overload (Short time) | Apply 2.5x rated voltage for 5 sec (2x for 1E, 2B, W3A2) | R(1% or 0.5) max. | 1F: 2%, others: 0.5% |
| Soldering Heat Resistance | 2605, 10s1s | R(0.5% or 0.5) max. (10R1M) R(1% or 1) max. (R10, R1M) | 0.5% (10R1M) 1% (R10, R1M) |
| Temperature Cycling | 100 cycles (-55/30min, +125/30min) | R(0.5% or 0.3) max. | 1F: 1%, others: 0.5% |
| Humidity Load | 402, 90%-95%RH, 1000h (1.5h ON, 0.5h OFF cycle) | R(1.5% or 1) max. (others) R(0.75% or 0.75) max. (1J, 2A, 2B) | 3% (others) 2% (1J, 2A, 2B) |
| Durability | 702 or rated terminal temp.2, 1000h (1.5h ON, 0.5h OFF cycle) | R(1% or 1) max. (others) R(0.75% or 0.75) max. (1J, 2A, 2B) | 3% (others) 2% (1J, 2A, 2B) |
| High Temperature Storage | +125, 1000h (1F) +155, 1000h (others) | R(0.5% or 0.3) max. | 0.5% (1F) 0.3% (others) |
Power Derating Curves
Graphs showing power derating based on ambient temperature and terminal temperature are provided in the original document. These curves illustrate the reduction in rated power as temperature increases.
Temperature Rise Data
Data on temperature rise under various power ratings and conditions is available in the original document, measured under specific conditions (Room Temp: 25, Substrate: FR-4 t=1.6mm, Cu foil: 35m).
Single Pulse Limiting Power Curve
Curves indicating the single-pulse limiting electric power versus pulse duration for different model groups are presented in the original document.
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