Product Overview
The Belfuse SCS series represents a new line of high-frequency Surface Mount Current Sensing Transformers designed for operating frequencies from 50kHz up to 1MHz. These transformers are engineered for precise current detection in applications ranging from 7A to 15A, offering inductance ranges from 33uH to 22mH with turns ratios from 2:1 to 220:1. Characterized by their exceptionally small footprint and compact size, the SCS series provides a non-invasive, cost-effective, and low-loss method for measuring current flow in power supply circuits, feedback control systems, safety and control circuits, and DC-DC converters/chargers. They are designed for automatic pick-and-place assembly, making them ideal for high-volume manufacturing.
Product Attributes
- Brand: Belfuse (Signal Transformer)
- Product Series: SCS4.4, SCS4.6, SCS8.3
- Technology: Surface Mount Technology (SMT)
- Certifications: RoHS Compliant
- Packaging: Tape & Reel
Technical Specifications
| Specification | Details |
|---|---|
| EE Core Sizes | 4.4 mm (SCS4.4), 4.6 mm (SCS4.6), 8.3 mm (SCS8.3) |
| Operating Frequency | 50 kHz to 1 MHz |
| Primary Rated Sensed Current | 7 A (SCS4.4), 9 A (SCS4.6), 15 A (SCS8.3) |
| Temperature Rise (Max Primary Current) | < 35C (SCS4.4), < 40C (SCS4.6) above 25C ambient |
| Operating Temperature Range | -40 C to +125 C |
| Storage Temperature | -40 C to +165 C |
| Isolation (Hipot) | 500 Vrms / 1 min (SCS4.4/SCS4.6); 1.5 kVAC / 3 mA / 1 s (SCS8.3) |
| Inductance Measurement Condition | 100 kHz, 0.1 Vrms, 0 Adc (SCS4.4 /SCS4.6) |
| General Features | Very low DC resistance, Designed for automatic pick and place |
| Applications | Switching power supplies, Feedback control, Overload sensing, Motor control, Load drop/shut down detection, LCD televisions, Notebook PCs, Portable communication equipment, DC-DC converters |
| Part Number Example (SCS4.4) | SCS-4-4-100T-TR (20:1 Turns Ratio, 0.820 mH Secondary Inductance Min, 9.50 Secondary DCR Max, 0.003 Primary DCR Ref, 7A Primary Current Max) |
| Part Number Example (SCS4.6) | SCS-4-6-100T-TR (20:1 Turns Ratio, 1.330 mH Secondary Inductance Min, 10.68 Secondary DCR Max, 0.0015 Primary DCR Ref, 9A Primary Current Max) |
| Part Number Example (SCS8.3) | SCS-8-3-100T-TR (20:1 Turns Ratio, 5.60 mH Secondary Inductance Min, 2.00 Secondary DCR Max, 0.0039 Primary DCR Ref, 15A Primary Current Max) |
| Packaging Quantity (SCS4.4) | 2000 pcs / Reel, 8000 pcs / Small Carton, 32000 pcs / Outer Carton |
| Packaging Quantity (SCS4.6) | 2500 pcs / Reel, 10000 pcs / Small Carton, 40000 pcs / Outer Carton |
| Packaging Quantity (SCS8.3) | 350 pcs / Reel, 1050 pcs / Small Carton, 4200 pcs / Outer Carton |
2411200012_Bel-Fuse-SCS-4-4-150T-TR_C20137034.pdf
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