LGJ7045TC-100M-H Equivalent & Substitute Parts

Part Overview

The LGJ7045TC-100M-H is a 10 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 2.5 A continuous current with 38 mOhm DC resistance. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The substitute part CLF7045NIT-100M-D provides functional continuity with enhanced electrical performance characteristics.

Substiute Parts

LGJ7045TC-100M-H

TDK CorporationIn Stock: 1662LGJ7045TC-100M-H Datasheet

Current PartRFQ

CLF7045NIT-100M-D

TDK CorporationIn Stock: 7059CLF7045NIT-100M-D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The CLF7045NIT-100M-D qualifies as a direct substitute based on the following critical parameters:

• Inductance Match: Both parts specify 10 µH with ±20% tolerance at 100 kHz test frequency
• Core Type & Shielding: Identical ferrite drum core construction with shielding
• Mounting & Package: Both are surface mount components with nonstandard package dimensions
• Compliance: Both maintain AEC-Q200 certification and ROHS3 compliance
• DC Resistance: CLF7045NIT-100M-D specifies 39.6 mOhm maximum, within acceptable range for equivalent functionality
• Current Rating Enhancement: CLF7045NIT-100M-D provides 3 A rating versus 2.5 A, offering improved current capacity
• Temperature Range Extension: CLF7045NIT-100M-D operates -55°C ~ 150°C versus -40°C ~ 125°C, providing broader thermal coverage

Parameter Comparison

Engineering Selection Recommendations

The CLF7045NIT-100M-D is the appropriate substitute for the obsolete LGJ7045TC-100M-H based on the following engineering criteria:

• Active Product Status: CLF7045NIT-100M-D maintains active production status, ensuring long-term availability and supply chain continuity
• Compliance Maintenance: Both parts hold identical AEC-Q200 automotive-grade certification and ROHS3 compliance, preserving regulatory requirements
• Electrical Equivalence: Matching inductance value, tolerance, and core material ensure functional compatibility in circuit applications
• Performance Enhancement: The substitute provides improved current rating (3 A vs 2.5 A) and extended operating temperature range (-55°C ~ 150°C vs -40°C ~ 125°C)
• Physical Compatibility: Dimensional differences are minimal; PCB layout accommodation for the slightly larger footprint (7.40mm x 7.00mm vs 7.20mm x 6.90mm) and height (4.80mm vs 4.50mm) must be verified during design transition

Frequently Asked Questions (FAQ)

Q: Can CLF7045NIT-100M-D directly replace LGJ7045TC-100M-H in existing designs?

A: Yes, provided PCB layout accommodates the dimensional differences. The substitute is 0.08" longer, 0.004" wider, and 0.012" taller. Verify clearance around the component footprint before implementation.

Q: What is the significance of the current rating difference (2.5 A vs 3 A)?

A: The CLF7045NIT-100M-D provides 20% higher current capacity. This is a performance enhancement that does not compromise compatibility; circuits designed for 2.5 A operation remain fully functional with the 3 A rated substitute.

Q: Are the DC resistance values compatible?

A: Yes. The LGJ7045TC-100M-H specifies 38 mOhm, while CLF7045NIT-100M-D specifies 39.6 mOhm maximum. The 1.6 mOhm difference represents 4.2% variance and is within acceptable tolerance for equivalent inductor substitution.

Q: Does the extended temperature range of CLF7045NIT-100M-D affect compatibility?

A: No. The substitute's extended range (-55°C ~ 150°C vs -40°C ~ 125°C) is a superset of the original specification, providing broader operational capability without introducing incompatibility.

Q: Are both parts AEC-Q200 certified?

A: Yes. Both LGJ7045TC-100M-H and CLF7045NIT-100M-D maintain AEC-Q200 automotive-grade certification, ensuring equivalent reliability and quality standards.

Q: What is the impact of the slightly different package dimensions?

A: The CLF7045NIT-100M-D has a nonstandard package identical in classification to the original. Physical dimensions differ marginally (approximately 0.08" length, 0.004" width, 0.012" height increase). PCB layout verification is required to confirm clearance compatibility.

Q: Is moisture sensitivity a concern when substituting?

A: No. Both parts specify MSL 1 (Unlimited), indicating no moisture sensitivity limitations. Storage and handling requirements are identical.