ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IND DUAL 4.7UH 20% 2.7A SHLD
- Series：SRF0703HA
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Coils：2
- Inductance - Connected In Parallel：4.7 µH
- Inductance - Connected In Series：18.8 µH
- Tolerance：±20%
- Current Rating - Parallel：2.7 A
- Current Rating - Series：1.35 A
- DC Resistance (DCR) - Parallel：50mOhm Max
- DC Resistance (DCR) - Series：200mOhm Max
- Shielding：Shielded
- Operating Temperature：-55°C ~ 150°C
- Mounting Type：Surface Mount
- Package / Case：Nonstandard
- Size / Dimension：0.299" L x 0.299" W (7.60mm x 7.60mm)
- Height：0.142" (3.60mm)
- Current Saturation - Parallel：3.78 A
- Current Saturation - Series：1.89 A
- Ratings：-
Download product information
Overview
The Bourns SRF0703HA-4R7M is a dual-winding shielded power inductor from the SRF0703HA series, designed for automotive-grade applications. It features a compact surface-mount package measuring 7.6 mm x 7.6 mm x 3.4 mm. The component provides an inductance of 4.7 µH with a tolerance of ±20%. Key electrical specifications include a maximum DC resistance of 0.05 ohms, an RMS current rating of 2.7 A, and a saturation current of 3.78 A. It operates within a temperature range of -55°C to +150°C.
Feature Summary
- Dual-winding configuration supporting parallel, series, and transformer connections
- Shielded magnetic structure to minimize electromagnetic interference
- Automotive-grade construction compliant with AEC-Q200 standards
Applications
- Automotive power supply circuits
- DC-DC converter modules
- Power factor correction systems
Procurement Notes
Verify the specific suffix 'HA' confirms the high-temperature automotive grade variant. Confirm package dimensions match the 7.6x7.6x3.4mm footprint requirement. Ensure the 4.7uH value aligns with circuit design needs. Check for RoHS compliance documentation if required by assembly specifications.
Selection Notes
Select this component when high current handling and thermal stability are critical. The 2.7A RMS and 3.78A Isat ratings suit high-power density designs. The shielded type reduces noise coupling in sensitive environments. Verify that the 4.7uH value fits the target switching frequency and ripple current requirements.
Part Context
This part belongs to the Bourns SRF0703HA series of coupled inductors. The series offers various inductance values while maintaining consistent physical dimensions. These components are engineered for reliability in harsh automotive environments, providing robust performance under varying thermal conditions.
Replacement Considerations
Direct substitutes may include other SMD coupled inductors with similar 4.7uH inductance and comparable current ratings. Verify pinout compatibility and mechanical footprint before substitution. Consider alternative manufacturers offering AEC-Q200 certified parts with equivalent shielding characteristics.
