3613C151K Equivalent & Substitute Parts

Part Overview

The TE Connectivity 3613C151K is a fixed unshielded inductor from the Sigma Inductors 3613C series, rated for 150 µH inductance with a maximum current capacity of 105 mA and 9 Ohm maximum DC resistance. This surface mount component is housed in a 1812 (4532 Metric) package and operates across a temperature range of -30°C to 100°C. The part is currently active in production and ROHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical specifications.

Substiute Parts

3613C151K

TE Connectivity Passive ProductIn Stock: 10853613C151K Datasheet

Current PartRFQ

744766215

Würth ElektronikIn Stock: 1095744766215 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3613C151K are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Primary Matching Parameters:

• Inductance value: 150 µH
• Inductance tolerance: ±10%
• Current rating: 105 mA
• DC resistance: 9 Ohm maximum
• Package designation: 1812 (4532 Metric)
• Mounting type: Surface Mount
• Core material: Ferrite
• Shielding configuration: Unshielded
• Q factor: 40 @ 796 kHz
• Inductance test frequency: 796 kHz

Compliance Parameters:

• RoHS3 compliance
• Moisture sensitivity level: 1 (Unlimited)
• ECCN classification: EAR99

Substitute parts must satisfy all primary matching parameters to ensure functional equivalence in circuit applications. Variations in secondary parameters such as self-resonant frequency, operating temperature range, or physical height do not disqualify a part from substitution provided all primary electrical and mechanical specifications align.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 744766215 is a direct functional equivalent to the TE Connectivity 3613C151K. Both components satisfy identical electrical specifications for inductance, current rating, DC resistance, and quality factor. Both parts are ROHS3 compliant and carry unlimited moisture sensitivity classification, confirming suitability for standard surface mount assembly processes.

The 744766215 features a drum core wirewound construction compared to the standard ferrite core design of the 3613C151K, yet maintains equivalent electrical performance at the specified test frequency of 796 kHz. The substitute part operates across a wider temperature range (-40°C to 105°C versus -30°C to 100°C) and exhibits a higher self-resonant frequency (6 MHz versus 5 MHz), providing extended operational margins in certain applications.

Physical dimensions are identical in length and width. The seated height of the 744766215 is 0.142 inches (3.60mm) compared to 0.134 inches (3.40mm) for the 3613C151K, a difference of 0.008 inches (0.20mm) that remains within typical PCB assembly tolerances for 1812 package components.

Both parts are active products with current manufacturing status and established supply availability. Selection between these equivalents may be based on procurement lead time, inventory availability, cost considerations, or specific application requirements for extended temperature operation.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 744766215 be used as a direct replacement for the TE Connectivity 3613C151K?

A: Yes. Both components meet identical electrical specifications: 150 µH inductance at ±10% tolerance, 105 mA current rating, 9 Ohm maximum DC resistance, and 40 Q factor at 796 kHz test frequency. Both are surface mount components in the 1812 (4532 Metric) package with ferrite cores and unshielded configurations. Functional equivalence is confirmed.

Q: What is the significance of the height difference between these parts?

A: The 744766215 has a maximum seated height of 0.142 inches (3.60mm) compared to 0.134 inches (3.40mm) for the 3613C151K, a difference of 0.008 inches (0.20mm). This variation is within standard PCB assembly tolerances for 1812 package inductors and does not affect board-level compatibility or component placement.

Q: Are there differences in core construction between these parts?

A: The 3613C151K uses a standard ferrite core design, while the 744766215 employs a drum core wirewound construction. Despite this structural difference, both components deliver identical electrical performance at the specified test frequency of 796 kHz and maintain equivalent inductance, current rating, and DC resistance specifications.

Q: What is the operating temperature range for each part?

A: The 3613C151K operates from -30°C to 100°C. The 744766215 operates from -40°C to 105°C, providing a wider temperature envelope. Selection should be based on specific application temperature requirements.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 3613C151K and 744766215 are ROHS3 compliant, carry EAR99 ECCN classification, and share the same HTSUS code (8504.50.8000). Both have moisture sensitivity level 1 (Unlimited), confirming compatibility with standard surface mount assembly processes.

Q: What is the self-resonant frequency difference, and does it matter?

A: The 3613C151K has a self-resonant frequency of 5 MHz, while the 744766215 is rated at 6 MHz. This difference reflects the construction method but does not affect performance at the 796 kHz test frequency. Selection should consider application frequency requirements above the test frequency.

Q: Are both parts currently in production?

A: Yes. Both the 3613C151K and 744766215 are active products with current manufacturing status. Both have established inventory availability through authorized distributors.