Product Overview
The Coat-insulated Fusing Resistors (RF series) are designed to function as standard resistors under normal conditions and provide rapid circuit protection by quickly 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 use and offer reliable protection against excessive overload. For applications involving automotive, medical, or aerospace equipment, or any situation where failure could lead to personal injury or significant damage, prior contact with the sales representative is mandatory.
Product Attributes
- Brand: KOA (implied by www.koaglobal.com)
- Product Type: Fusing Resistors
- Series: RF
- Coating Color: Blue
- Marking: Color code
- Coating Type: Coat-insulated, Flame retardant (UL94 V-0 equivalent)
- Certifications: EU-RoHS compliant
- Reference Standards: IEC 60115-1, JIS C 5201-1, EIAJ RC-2125
Technical Specifications
| Model Type | Power Rating (W) | Resistance Range () (E24) | Tolerance | Dielectric Withstanding Voltage (V) | Rated Ambient Temperature (C) | Operating Temperature Range (C) | Weight (g/1,000pcs) |
|---|---|---|---|---|---|---|---|
| RF16C | 0.17 | 1.01k | J: 5% | 250 | 70 | -45+155 | 120 |
| RF25C | 0.25 | 0.110k | J: 5% | 250 | 70 | -45+155 | 230 |
| RF50C | 0.5 | 0.115k | J: 5% | 300 | 70 | -45+155 | 290 |
| RF1C | 1 | 0.110k | J: 5% | 350 | 70 | -45+155 | 460 |
| RF2C | 2 | 1.03k | J: 5% | 600 | 70 | -45+155 | 1410 |
| Model Type | Dimensions (mm) L | Dimensions (mm) C Max. | Dimensions (mm) D (Nominal) | Dimensions (mm) d (Nominal) | T.C.R. (10 -6/K) | Fusing Power (W) | Fusing Time (sec Max.) |
|---|---|---|---|---|---|---|---|
| RF16C | 3.20.2 | 3.4 | 1.7 +0.25 0 | 0.45 | 1000 R4.7 350 R5.1 | 3W (14.7) 2.5W (5.11k) | 60 |
| RF25C | 6.30.5 | 7.1 | 2.30.3 | 0.6 | - | 10W (0.10.18) 7.5W (0.20.43) 6.25W (0.470.91) 3.75W (14.7) 3W (5.12.2k) | 30 |
| RF50C | 8.50.5 | 9.5 | 3.00.3 | - | - | 12.5W (0.10.43) 7.5W (0.472) 6W (2.21k) | - |
| RF1C | 9.01.0 | 11.1 | 3.50.5 | 0.8 | - | 30W (0.10.18) 25W (0.20.43) 15W (0.472) 12W (2.21k) | - |
| RF2C | 15.51.0 | 18.0 | 6.01.0 | - | - | 36W (13.6) 30W (1.1k3k) 24W (3.91k) | - |
| Model Type | Maximum Open-Circuit Voltage (V) |
|---|---|
| RF16C | 100 |
| RF25C | 200 |
| RF50C | 250 |
| RF1C | 300 |
| RF2C | 300 |
2410121450_KOA-RF25CT52A181J_C367442.pdf
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