CTS-Frequency Controls 402F24022ILT 24 MHz Crystal Equivalent & Substitute Parts

Part Overview

The CTS-Frequency Controls 402F24022ILT is a 24.0000 MHz fundamental mode crystal oscillator in a 4-SMD, No Lead surface mount package. This part operates at ±20ppm frequency stability with 12pF load capacitance and 100 Ohms equivalent series resistance across an operating temperature range of -40°C to 85°C. The 402F24022ILT is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Frequency	24.0000 MHz
Frequency Stability	±20ppm
Load Capacitance	12pF
ESR (Equivalent Series Resistance)	100 Ohms
Operating Mode	Fundamental
Operating Temperature Range	-40°C to 85°C
Mounting Type	Surface Mount
Package / Case	4-SMD, No Lead
Size / Dimension	0.079" L x 0.063" W (2.00mm x 1.60mm)
Height - Seated (Max)	0.022" (0.55mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 402F24022ILT is determined by the following critical parameters: frequency (24.0000 MHz), load capacitance (12pF), ESR (100 Ohms), frequency stability (±20ppm), operating temperature range (-40°C to 85°C), and physical package compatibility (4-SMD, No Lead surface mount).

Substitute parts are grouped into three categories:

Direct Manufacturer Equivalents maintain identical electrical specifications and package dimensions, differing only in frequency tolerance or product status. These parts are fully interchangeable with the 402F24022ILT.

Similar Manufacturer Parts share the same frequency, operating mode, temperature range, and mounting type but differ in load capacitance or ESR. These parts require circuit verification to confirm compatibility with the original design's load capacitance specification.

Parametric Equivalents match all critical electrical and mechanical parameters of the 402F24022ILT and are available in active product status with current inventory.

Parameter Comparison

Part Number	Manufacturer	Frequency	Frequency Stability	Frequency Tolerance	Load Capacitance	ESR	Package	Size (mm)	Product Status	Inventory
402F24022ILT	CTS-Frequency Controls	24 MHz	±20ppm	±20ppm	12pF	100 Ω	4-SMD, No Lead	2.00 x 1.60	Discontinued	747 Pcs
402F24022ILR	CTS-Frequency Controls	24 MHz	±20ppm	±20ppm	12pF	100 Ω	4-SMD, No Lead	2.00 x 1.60	Active	1058 Pcs
402F24012ILR	CTS-Frequency Controls	24 MHz	±20ppm	±10ppm	12pF	100 Ω	4-SMD, No Lead	2.00 x 1.60	Active	1137 Pcs
402F2401XILR	CTS-Frequency Controls	24 MHz	±15ppm	±10ppm	12pF	100 Ω	4-SMD, No Lead	2.00 x 1.60	Active	745 Pcs
402F24022IAR	CTS-Frequency Controls	24 MHz	±20ppm	±20ppm	10pF	100 Ω	4-SMD, No Lead	2.00 x 1.60	Active	844 Pcs
402F24022IJR	CTS-Frequency Controls	24 MHz	±20ppm	±20ppm	9pF	100 Ω	4-SMD, No Lead	2.00 x 1.60	Active	810 Pcs
416F24022IAR	CTS-Frequency Controls	24 MHz	±20ppm	±20ppm	10pF	120 Ω	4-SMD, No Lead	1.60 x 1.20	Active	1140 Pcs
416F24022ILR	CTS-Frequency Controls	24 MHz	±20ppm	±20ppm	12pF	120 Ω	4-SMD, No Lead	1.60 x 1.20	Active	679 Pcs

Engineering Selection Recommendations

Parametric Equivalent (Recommended Primary Substitute): The 402F24022ILR is the direct parametric equivalent to the 402F24022ILT. It maintains identical electrical specifications (24 MHz, ±20ppm stability, 12pF load capacitance, 100 Ohms ESR) and physical dimensions. The 402F24022ILR is in active product status with 1058 pieces in current inventory, providing immediate availability and long-term supply continuity.

Direct Manufacturer Alternatives: The 402F24012ILR and 402F2401XILR are active CTS-Frequency Controls products with improved frequency tolerance specifications (±10ppm and ±15ppm respectively). Both maintain the 12pF load capacitance and 100 Ohms ESR required by the original design. These parts are suitable for applications where tighter frequency tolerance provides design margin.

Load Capacitance Variants: The 402F24022IAR (10pF) and 402F24022IJR (9pF) are active alternatives with reduced load capacitance. These parts require verification that the circuit design accommodates the different load capacitance specification before implementation.

Series 416 Alternatives: The 416F24022IAR and 416F24022ILR are smaller package variants (1.60mm x 1.20mm versus 2.00mm x 1.60mm) with 120 Ohms ESR. These parts are suitable only for designs where the reduced physical footprint is compatible with PCB layout and the higher ESR does not impact circuit performance.

All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental compliance profile of the 402F24022ILT.

Frequently Asked Questions (FAQ)

Q: Can I directly replace the 402F24022ILT with the 402F24022ILR?

A: Yes. The 402F24022ILR is a parametric equivalent with identical frequency (24 MHz), frequency stability (±20ppm), load capacitance (12pF), ESR (100 Ohms), and package dimensions. It is the recommended direct substitute.

Q: What is the difference between the 402F24022ILT and 402F24012ILR?

A: Both parts operate at 24 MHz with 12pF load capacitance and 100 Ohms ESR. The 402F24012ILR has tighter frequency tolerance (±10ppm versus ±20ppm). The 402F24012ILR is in active product status, while the 402F24022ILT is discontinued.

Q: Can I use the 402F24022IAR or 402F24022IJR as substitutes?

A: These parts share the same frequency and ESR but have different load capacitance values (10pF and 9pF respectively, versus 12pF in the original). Substitution requires circuit verification to confirm the design accommodates the altered load capacitance specification.

Q: What is the significance of the Series 416 parts (416F24022IAR, 416F24022ILR)?

A: Series 416 parts are physically smaller (1.60mm x 1.20mm versus 2.00mm x 1.60mm) and have higher ESR (120 Ohms versus 100 Ohms). These parts are suitable only for designs where the reduced footprint is compatible with PCB layout and the ESR increase does not degrade circuit performance.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental compliance of the 402F24022ILT.

Q: Which substitute part has the best current availability?

A: The 402F24012ILR has the highest current inventory at 1137 pieces, followed by the 402F24022ILR at 1058 pieces. Both are in active product status.

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