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Specifications
Current Rating:
2.89A
Inductance:
3.3uH
Tolerance:
±20%
DC Resistance(DCR):
37mΩ
Current - Saturation(Isat):
5.4A
Mfr. Part #:
XRRF7342-3R3M
Package:
SMD-4P,7.5x7.5mm
Key Attributes
Model Number:
XRRF7342-3R3M
Product Description
Product Overview
The XRRF7342 series of SMD Coupling Inductors are designed for high-performance applications. Featuring tight coupling (k 0.97) and 200V isolation, they are ideal for flyback, multi-output buck, and SEPIC circuits. These inductors offer high inductance, high efficiency, and excellent current handling in a cost-effective and rugged package. They can also be configured as two single inductors in series or parallel, a common mode choke, or a 1:1 transformer.
Product Attributes
- Brand: DONGGUAN XIANGRU ELECTRONICS CO.,LTD
- Origin: China (implied by company location)
- Material: Ferrite core; Termination: RoHS compliant matte tin over nickel over phos bronze (standard)
- Certifications: RoHS compliant (implied by termination description)
Technical Specifications
| PART NO. | Inductance 2 (uH) | DCR max 3 () | SRF typ 4 (MHz) | Coupling coefficient typ | Leakage L typ 5 (uH) | Isat (A) 6 (10% drop) | Irms (A) 7 (20% drop) | Irms (A) 8 (30% drop) |
| XRRF7342-3R3M | 3.3 20% | 0.037 | 43 | 0.99 | 0.09 | 5.20 | 5.30 | 5.40 |
Notes on Technical Specifications:
- 1. Termination: Standard is RoHS compliant matte tin over nickel over phos bronze. Special orders include RoHS tin-silver-copper (95.5/4/0.5) or non-RoHS tin-lead (63/37).
- 2. Inductance is shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc. When leads are connected in parallel, inductance is the same. When leads are connected in series, inductance is four times the value.
- 3. DCR is for each winding. When leads are connected in parallel, DCR is half the value. When leads are connected in series, DCR is twice the value.
- 4. SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value.
- 5. Leakage inductance is for L1 and measured with L2 shorted.
- 6. DC current at which inductance drops the specified amount from its value without current. It is the sum of current flowing in both windings.
- 7. Irms (A) at 20% drop.
- 8. Irms (A) at 30% drop.
Additional Product Information
- Core Material: Ferrite
- Weight: 0.76 0.87g
- Ambient Temperature: 40C to +85C (with 40C rise) Irms current
- Maximum Part Temperature: +125C (ambient + temp rise)
- Storage Temperature: Component: 40C to +125C; Tape and reel packaging: 40C to +80C
- Winding to Winding Isolation: 200 Vrms, one minute
- Resistance to Soldering Heat: Max three 40 second reflows at +260C, parts cooled between cycles
- Moisture Sensitivity Level (MSL): 1 (unlimited floor life at <30C / 85% relative humidity)
- Failures in Time (FIT) / Mean Time Between Failures (MTBF): 38 per billion hours / 26,315,789 hours
- Packaging: 250/7 reel; 1000/13 reel. Plastic tape: 16 mm wide, 0.4 mm thick, 12 mm pocket spacing, 4.9 mm pocket depth.
- PCB Washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash.
2512101500_XR-XRRF7342-3R3M_C51484164.pdf
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