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Specifications
Type:
High Voltage Glass Glaze Resistor
Resistance:
1.8MΩ
Power(Watts):
250mW
Temperature Coefficient:
±200ppm/℃
Tolerance:
±1%
Operating Temperature:
-65℃~+175℃
Mfr. Part #:
RT1/4W1M8FT/BX
Package:
Through Hole,D2.4xL6.4mm
Key Attributes
Model Number:
RT1/4W1M8FT/BX
Product Description
Product Overview
This specification defines the requirements for Metal Glaze High Voltage Resistors (RT series) used in home appliances, computers, and information technology equipment. These resistors are designed to meet stringent mechanical, electrical, and environmental performance standards, ensuring reliability and durability in demanding applications. The series complies with RoHS regulations.
Product Attributes
- Type: Metal Glaze High Voltage Resistor (RT)
- Certifications: UL approval (RT 1/2W, RT 1W, RT 2W series for 960K~12M)
- Compliance: RoHS
Technical Specifications
| Type | Rated Power | Nominal Resistance | Tolerance | Max. Permissible Voltage (DC/RMS) | Dimensions (D1 x L1 x H3) mm | Terminal Diameter (d0.1) mm | Coating | Temperature Range |
| RT 1/4W | 1/4W | 47K 33M | F=1%, J=5% | 1600V / 1150V | 2.40.5 x 6.4 x 28 | 0.6 | Light green epoxy resin | -65175 |
| RT 1/2W | 1/2W | 47K 33M | F=1%, J=5% | 3500V / 2500V | 3.5 x 9 x 28 | 0.65 | Light green epoxy resin | -65175 |
| RT 1W | 1W | 47K 33M | F=1%, J=5% | 5000V / 3500V | 4.5 x 11 x 28 | 0.8 | Light blue flameproof silicone resin (800 resistant) | -65175 |
| RT 2W | 2W | 47K 33M | F=1%, J=5% | 10000V / 7000V | 5 x 15 x 28 | 0.8 | Light blue flameproof silicone resin (800 resistant) | -65175 |
Mechanical & Electrical Performance
| Parameter | Specification |
| Terminal Pull Strength | 2.5kgs (1kg for 1/2W and below) for 10 seconds |
| Terminal Torsion Strength | No breakage or loosening after 2 cycles of 360 rotation |
| Temperature Coefficient | 200ppm/ |
| Short-time Overload | 2.5x rated voltage for 5 seconds; resistance change within 1% after cooling |
| Dielectric Strength | AC 350V for 1 minute (between terminal and metal groove) |
| Insulation Resistance | 1000M (DC 500V) |
| Load Life | 3% resistance change after 1000 hours |
| Humidity Life | 3% resistance change after 500 hours at 40, 90-95% RH |
| Solderability | 95% coverage at 2355 for 2 seconds |
| Solder Heat Resistance | 1% resistance change after immersion at 2705 for 101 sec (or 35010 for 3.50.5 sec) |
| Flammability (1W and above) | No burning when subjected to 16x rated power for 5 minutes |
| Impulse Withstand | 2% resistance change after IEC 60065 testing |
2212071009_TyoHM-RT1-4W1M8FT-BX_C5249474.pdf
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