Murata Power Solutions 17103C Fixed Inductor Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 17103C is a 10 µH unshielded wirewound inductor rated for 1.8 A continuous current with a maximum DC resistance of 50mOhm. This through-hole radial component operates across a 0°C to 70°C temperature range and is classified as Active product status. Equivalent and substitute parts are identified when design requirements permit tolerance of specified parameter variations while maintaining functional compatibility in the target application circuit.

Substiute Parts

17103C

Murata Power Solutions Inc.In Stock: 98417103C Datasheet

Current PartRFQ

RLB0712-100KL

Bourns Inc.In Stock: 8284RLB0712-100KL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 17103C is determined by the following critical parameters:

Inductance value must equal 10 µH with ±10% tolerance specification. Current rating must meet or exceed 1.8 A to support the same load conditions. DC resistance must not exceed 50mOhm to maintain equivalent power dissipation characteristics. Mounting type must be through-hole with radial, vertical cylinder package configuration to ensure mechanical and electrical compatibility with existing PCB layouts. Shielding classification must remain unshielded to preserve electromagnetic coupling behavior in the target circuit. Operating temperature range must encompass the application's thermal requirements.

The Bourns RLB0712-100KL qualifies as a substitute based on matching inductance (10 µH), identical tolerance (±10%), compatible through-hole radial mounting, and unshielded construction. However, the current rating of 1.1 A is lower than the 17103C specification of 1.8 A, and DC resistance is higher at 70mOhm maximum versus 50mOhm maximum. These parameter differences require application-level evaluation to confirm suitability.

Parameter Comparison

Engineering Selection Recommendations

Both the 17103C and RLB0712-100KL maintain Active product status and ROHS3 compliance, confirming ongoing manufacturer support and regulatory alignment. The RLB0712-100KL extends the operating temperature range to -40°C to 105°C, providing broader thermal coverage compared to the 17103C specification of 0°C to 70°C.

Selection between these components depends on application-specific current and resistance requirements. The 17103C supports higher continuous current (1.8 A) and lower DC resistance (50mOhm maximum), making it suitable for applications requiring minimal power dissipation and higher current capacity. The RLB0712-100KL, with 1.1 A current rating and 70mOhm maximum resistance, is appropriate for lower-current applications or where extended temperature operation is required. Both components share identical inductance values, tolerance specifications, and mechanical form factors, enabling direct PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can the RLB0712-100KL replace the 17103C in all applications?

A: Direct substitution requires verification that the application current demand does not exceed 1.1 A and that the increased DC resistance of 70mOhm (versus 50mOhm) does not compromise circuit performance. Both components provide identical 10 µH inductance and ±10% tolerance, ensuring electrical compatibility at the inductance level.

Q: What is the impact of the 20mOhm difference in DC resistance?

A: DC resistance directly affects power dissipation in the inductor. At maximum rated current, the 17103C dissipates 0.162 W (1.8 A × 50mOhm), while the RLB0712-100KL dissipates 0.085 W (1.1 A × 70mOhm). Applications sensitive to thermal performance or operating near current limits should account for this difference.

Q: Are the physical dimensions compatible?

A: Both components use radial, vertical cylinder packaging with similar form factors. The 17103C measures 0.283" diameter (7.20mm) with 0.413" seated height (10.50mm), while the RLB0712-100KL measures 0.264" diameter (6.70mm) with 0.433" seated height (11.00mm). These minor dimensional variations are within typical PCB layout tolerances for through-hole radial components.

Q: What is the significance of the different Q factors?

A: The 17103C exhibits Q of 65 at 1MHz, while the RLB0712-100KL exhibits Q of 20 at 2.52MHz. Higher Q indicates lower losses at the specified frequency. Applications operating near 1MHz may benefit from the 17103C's superior Q performance, while those operating at higher frequencies should evaluate the RLB0712-100KL's frequency-dependent characteristics.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 17103C and RLB0712-100KL are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8504.50.4000, confirming equivalent regulatory and environmental compliance.