3D Model
Datasheet
Specifications
Electrical specifications at 25°C. Measurements are referenced to 50 Ohms.
| Part number 1 | L min per winding (µH) 2 | DCR max (mΩ) 3 |
Imp. ratio pri:sec 4 |
Current rating (mA) |
Insertion loss (db) |
DC imbalance 5 | Bandwidth (MHz) |
Isolation Voltage (Vrms) |
Schematic | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pri | Sec | Pri | Sec | ||||||||
| ST458RFW04B2LZ | 2.0 | 8.0 | 50.0 | 100 | 1 : 4 | 250 | 2 | 15.0 | 1.5 — 1200 | 300 | B |
Notes
- When ordering, please specify termination and testing codes: e.g. ST458RFW04C1LZ.
- Inductance measured at 100 kHz, 0.1 V, 0 Adc on an Agilent/HP 4192 or equivalent.
- DCR measured on a micro-ohmmeter.
- Impedance ratio is for the full primary winding to the full secondary winding.
- DC imbalance is the maximum difference in current measured at pins 4 and 6 with the source at pin 5. Inductance drop is 15% at maximum imbalance.
Termination:
- L = Tin-silver-copper (95.5/4/0.5) over silver-platinum-glass frit.
- S = Tin-lead (63/37). (Special order,added cost)
Testing:
Z = UnscreenedH = Group A screening per Coilcraft CP-SA-10001
All screening performed to the document’s latest revision
Custom screening also available
Environmental
Ambient temperature range:
–40°C to +85°C
Storage temperature range:
Component: –55°C to +95°C
Tape and reel packaging: –55°C to +80°C
Tape and reel packaging: –55°C to +80°C
Maximum part temperature:
+95°C (ambient + temp rise)
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
Performance curves
Attenuation vs Frequency
Schematics
General specification
Core Material:
Ferrite
Packaging:
750/7′′ reel; Plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 2.9 mm pocket depth.
Soldering/Washing
Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles.
Refer to Soldering Coilcraft Components before soldering.