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Specifications
Type:
Fuse Resistor
Resistance:
100Ω
Voltage-Supply(Max):
-
Power(Watts):
250mW
Tolerance:
±5%
Operating Temperature:
-45℃~+155℃
Mfr. Part #:
RF25CT52A101J
Package:
Through Hole,D2.3xL6.3mm
Key Attributes
Model Number:
RF25CT52A101J
Product Description
Product Overview
The Fusing Resistor RF series, also known as Coat-insulated Fusing Resistors, are designed to function as standard resistors under normal conditions while providing rapid circuit protection through quick fusing during abnormal overload situations. These resistors feature a flame-retardant coating equivalent to UL94 V-0 and comply with EU-RoHS requirements. They are suitable for general resistor applications and are specifically recommended for use in automotive, medical, and aerospace equipment, where failure could lead to severe consequences. Contact the manufacturer before using in such critical applications.
Product Attributes
- Brand: KOA
- Product Type: Fusing Resistors
- Series: RF
- Coating Color: Blue
- Marking: Color code
- Coating Type: Coat-insulated
- Flame Retardancy: Equivalent to UL94 V-0
- Compliance: EU-RoHS
- Reference Standards: IEC 60115-1, JIS C 5201-1, EIAJ RC-2125
- Origin: Japan (implied by Japanese text and company website)
Technical Specifications
| Model Type | Dimensions (mm) L | Dimensions (mm) C Max. | Dimensions (mm) D (Nominal) | Dimensions (mm) d (Nominal) | Weight (g/1,000pcs) | Power Rating (W) | Resistance Range () (E24) | Resistance Tolerance | Dielectric Withstanding Voltage (V) | T.C.R. (10 -6/K) | Max. Fusing Time | Rated Ambient Temperature (C) | Operating Temperature Range (C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RF16C | 3.20.2 | 3.4 | 1.7 +0.25 0 | 0.45 | 303 | 0.17 | 1.01k | J: 5% | 250 | R4.7: 1000; R5.1: 350 | 60 sec Max. (for R5.1) | 70 | -45+155 |
| RF25C | 6.30.5 | 7.1 | 2.30.3 | 0.6 | 230 | 0.25 | 0.110k | J: 5% | 250 | N/A | 30 sec Max. (for R1) | 70 | -45+155 |
| RF50C | 8.50.5 | 9.5 | 3.00.3 | 0.6 | 290 | 0.5 | 0.115k | J: 5% | 300 | N/A | N/A | 70 | -45+155 |
| RF1C | 9.01.0 | 11.1 | 3.50.5 | 0.8 | 460 | 1 | 0.110k | J: 5% | 350 | N/A | N/A | 70 | -45+155 |
| RF2C | 15.51.0 | 18.0 | 6.01.0 | 1.0 | 1410 | 2 | 1.03k | J: 5% | 600 | N/A | N/A | 70 | -45+155 |
| Model Type | Fusing Power (W) | Fusing Time (sec) |
|---|---|---|
| RF16C | 3W (14.7), 2.5W (5.11k) | 60 Max. |
| RF25C | 10W (0.10.18), 7.5W (0.20.43), 6.25W (0.470.91), 3.75W (14.7), 3W (5.12.2k) | 30 Max. |
| RF50C | 12.5W (0.10.43), 7.5W (0.472), 6W (2.21k) | N/A |
| RF1C | 30W (0.10.18), 25W (0.20.43), 15W (0.472), 12W (2.21k) | N/A |
| RF2C | 36W (13.6), 30W (1.1k3k), 24W (3.91k) | N/A |
| Rated Power | Maximum Open-Circuit Voltage (V) |
|---|---|
| 0.17W | 100 |
| 0.25W | 200 |
| 0.5W | 250 |
| 1W | 300 |
| 2W | 300 |
2410121450_KOA-RF25CT52A101J_C367440.pdf
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