CTS-Frequency Controls 416F44012ILT Crystal Equivalent & Substitute Parts

Part Overview

The 416F44012ILT is a 44 MHz fundamental mode crystal oscillator manufactured by CTS-Frequency Controls, designed for surface mount applications in the 4-SMD, No Lead package. This part is discontinued at DiGi Electronics but remains available through inventory channels with 1,075 pieces in stock. Due to its discontinued status, equivalent substitute parts from the same manufacturer series are necessary for ongoing production and design continuity. Substitute parts maintain identical electrical specifications while offering different load capacitance values or packaging configurations to support alternative sourcing strategies.

Substiute Parts

416F44012ILT

CTS-Frequency ControlsIn Stock: 1104416F44012ILT Datasheet

Current PartRFQ

416F44012IAR

CTS-Frequency ControlsIn Stock: 749416F44012IAR Datasheet

SimilarRFQ

416F44012ILR

CTS-Frequency ControlsIn Stock: 937416F44012ILR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 416F44012ILT is determined by the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 44 MHz
• Frequency Tolerance: ±10ppm
• ESR: 60 Ohms
• Operating Mode: Fundamental
• Operating Temperature Range: -40°C to 85°C
• Package / Case: 4-SMD, No Lead
• Physical Dimensions: 0.063" L x 0.047" W (1.60mm x 1.20mm)
• Height - Seated (Max): 0.018" (0.45mm)
• RoHS Status: ROHS3 Compliant
• MSL: 1 (Unlimited)

Variable Parameters Allowing Substitution:

• Load Capacitance: 12pF (main part) or 10pF (substitute)
• Packaging Configuration: Bulk or Tape & Reel (TR)
• Product Status: Discontinued or Active

The 416F44012ILT has two qualified substitutes within the CTS-Frequency Controls 416 series that maintain all mandatory electrical and mechanical specifications while differing in load capacitance or packaging format.

Parameter Comparison

Engineering Selection Recommendations

416F44012ILR (Parametric Equivalent): This part is the direct parametric equivalent to the 416F44012ILT, maintaining identical load capacitance of 12pF and all electrical specifications. The 416F44012ILR is currently active in production and available in Tape & Reel packaging, making it the primary substitute for new designs and ongoing production requirements. Selection of this part eliminates sourcing constraints associated with the discontinued 416F44012ILT while maintaining full electrical and mechanical compatibility.

416F44012IAR (Load Capacitance Variant): This part differs from the main part only in load capacitance, specified at 10pF instead of 12pF. The 416F44012IAR is active in production and available in Tape & Reel packaging. This variant is suitable for applications where the circuit design accommodates a 10pF load capacitance specification. Both parts maintain identical frequency tolerance, ESR, operating temperature range, and all other critical parameters.

Both substitute parts carry ROHS3 compliance and MSL 1 rating, matching the environmental and regulatory status of the main part.

Frequently Asked Questions (FAQ)

Q: Can the 416F44012ILR be used as a direct replacement for the 416F44012ILT?

A: Yes. The 416F44012ILR is a parametric equivalent with identical load capacitance (12pF), frequency (44 MHz), frequency tolerance (±10ppm), ESR (60 Ohms), and all other electrical and mechanical specifications. The only difference is packaging format (Tape & Reel versus bulk) and product status (Active versus Discontinued).

Q: What is the difference between the 416F44012ILT and 416F44012IAR?

A: The primary difference is load capacitance: the 416F44012ILT specifies 12pF while the 416F44012IAR specifies 10pF. All other parameters, including frequency, frequency tolerance, ESR, operating temperature range, and physical dimensions, are identical. Selection between these parts depends on circuit design requirements for load capacitance.

Q: Are all three parts in the same physical package?

A: Yes. All three parts use the 4-SMD, No Lead package with identical dimensions of 0.063" L x 0.047" W (1.60mm x 1.20mm) and maximum seated height of 0.018" (0.45mm). They are mechanically interchangeable on the PCB.

Q: What does the load capacitance specification mean for substitution?

A: Load capacitance is the capacitance value the crystal oscillator circuit is designed to operate with. The 416F44012ILT and 416F44012ILR both specify 12pF load capacitance, making them electrically equivalent. The 416F44012IAR specifies 10pF load capacitance and is suitable only for circuits designed for this lower capacitance value.

Q: Are there any compliance or regulatory differences between these parts?

A: No. All three parts are ROHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity rating, and are REACH Unaffected. They are equivalent from a regulatory and environmental compliance perspective.

Q: Why is the 416F44012ILT discontinued?

A: The 416F44012ILT is discontinued at DiGi Electronics. The active equivalents 416F44012ILR and 416F44012IAR remain in production and are available through standard distribution channels in Tape & Reel packaging.