LFXTAL070065 24 MHz Crystal Equivalent & Substitute Parts

Part Overview

The LFXTAL070065 is a 24 MHz fundamental mode crystal oscillator manufactured by IQD Frequency Products, designed for surface mount applications in the CFPX-180 series. This part is actively produced and ROHS3 compliant. Substitute parts are identified to address inventory availability, lead time constraints, or specific electrical parameter requirements within the allowed tolerance ranges for 24 MHz ±10ppm crystals with 9pF load capacitance.

Key Parameters

Parameter	Value
Frequency	24 MHz
Frequency Tolerance	±10ppm
Load Capacitance	9pF
ESR (Equivalent Series Resistance)	50 Ohms
Operating Temperature Range	-40°C to 85°C
Package / Case	4-SMD, No Lead
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution logic is based on the following critical parameters:

Frequency Match: All substitutes operate at 24 MHz with ±10ppm tolerance
Load Capacitance: Primary grouping by 9pF or 10pF load capacitance
ESR Tolerance: ESR values range from 40 to 100 Ohms; circuits designed for 50 Ohms ESR can typically accommodate ±20% variation
Package Compatibility: All substitutes use 4-SMD, No Lead surface mount package
Temperature Range: All substitutes operate across -40°C to 85°C
Compliance: All substitutes are ROHS3 compliant and REACH unaffected

Substitutes are grouped into two categories: Direct Equivalents (identical 9pF load capacitance and 50 Ohms ESR) and Compatible Alternatives (9pF or 10pF load capacitance with ESR values within acceptable operating margins).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Frequency	Load Capacitance	ESR (Ohms)	Package	Size (mm)	Height Max (mm)	Product Status
LFXTAL070065	IQD Frequency Products	24 MHz ±10ppm	9pF	50	4-SMD, No Lead	3.20 x 2.50	0.80	Active
LFXTAL071177	IQD Frequency Products	24 MHz ±10ppm	9pF	40	4-SMD, No Lead	3.20 x 2.50	0.80	Active
LFXTAL070065REEL	IQD Frequency Products	24 MHz ±10ppm	9pF	50	4-SMD, No Lead	3.20 x 2.50	0.80	Active
C3E-24.000-9-1015-X-R	Aker Technology Corp	24 MHz ±10ppm	9pF	50	4-SMD, No Lead	3.20 x 2.50	0.75	Active
FL2400097	Diodes Incorporated	24 MHz ±10ppm	9pF	50	4-SMD, No Lead	3.20 x 2.50	0.75	Active
ECS-240-9-33B-CWN-TR	ECS Inc.	24 MHz ±10ppm	9pF	40	4-SMD, No Lead	3.20 x 2.50	0.80	Active
Q 24,0-JXS21-9-10/15-T1-FU-WA-LF	Jauch Quartz	24 MHz ±10ppm	9pF	80	4-SMD, No Lead	2.00 x 1.60	0.55	Active
402F2401XIAR	CTS-Frequency Controls	24 MHz ±10ppm	10pF	100	4-SMD, No Lead	2.00 x 1.60	0.55	Active
C3E-24.000-10-1015-X-R	Aker Technology Corp	24 MHz ±10ppm	10pF	100	4-SMD, No Lead	3.20 x 2.50	0.75	Active
ECS-240-10-37-CWN-TR	ECS Inc.	24 MHz ±10ppm	10pF	80	4-SMD, No Lead	2.00 x 1.60	0.55	Active
Q 24,0-JXS21-10-10/15-T1-FU-WA-LF	Jauch Quartz	24 MHz ±10ppm	10pF	80	4-SMD, No Lead	2.00 x 1.60	0.55	Active

Engineering Selection Recommendations

Direct Equivalents (Preferred for Pin-Compatible Replacement)

LFXTAL070065REEL, C3E-24.000-9-1015-X-R, and FL2400097 are direct parametric equivalents with identical 24 MHz frequency, 9pF load capacitance, and 50 Ohms ESR. All are ROHS3 compliant and actively produced. LFXTAL070065REEL is the same part in reel packaging format. C3E-24.000-9-1015-X-R and FL2400097 offer alternative sourcing from different manufacturers with identical electrical specifications.

Compatible Alternatives with 9pF Load Capacitance

LFXTAL071177 and ECS-240-9-33B-CWN-TR operate at 9pF load capacitance with 40 Ohms ESR. The 10 Ohms reduction in ESR falls within typical circuit tolerance margins and is suitable for applications where lower ESR is beneficial. Q 24,0-JXS21-9-10/15-T1-FU-WA-LF provides 9pF load capacitance with 80 Ohms ESR and a smaller physical footprint (2.00mm x 1.60mm), suitable for space-constrained layouts.

Compatible Alternatives with 10pF Load Capacitance

402F2401XIAR, C3E-24.000-10-1015-X-R, ECS-240-10-37-CWN-TR, and Q 24,0-JXS21-10-10/15-T1-FU-WA-LF operate at 10pF load capacitance. These parts are suitable for circuits designed with 10pF load capacitance specifications. ESR values range from 80 to 100 Ohms. All are ROHS3 compliant and actively produced.

Frequently Asked Questions (FAQ)

Q: Can I substitute LFXTAL070065 with a part having different load capacitance (9pF vs 10pF)?

A: Load capacitance substitution requires circuit design verification. The oscillator circuit must be designed for the specific load capacitance value. Substituting a 10pF part into a 9pF circuit design may result in frequency deviation outside the ±10ppm tolerance. Consult circuit design documentation before substitution.

Q: What is the significance of ESR (Equivalent Series Resistance) variation?

A: ESR affects oscillator startup characteristics and power consumption. The LFXTAL070065 specifies 50 Ohms ESR. Substitutes with 40 Ohms ESR (LFXTAL071177, ECS-240-9-33B-CWN-TR) provide lower resistance, while 80-100 Ohms ESR parts (Jauch Quartz, CTS-Frequency Controls) provide higher resistance. Circuits designed for 50 Ohms ESR typically tolerate ±20% variation without performance degradation.

Q: Are all substitute parts pin-compatible with the original LFXTAL070065?

A: All substitutes use the 4-SMD, No Lead package format and are mechanically compatible. However, physical dimensions vary slightly. LFXTAL070065, LFXTAL071177, ECS-240-9-33B-CWN-TR, C3E-24.000-9-1015-X-R, and C3E-24.000-10-1015-X-R share the 3.20mm x 2.50mm footprint. Jauch Quartz and CTS-Frequency Controls parts use a smaller 2.00mm x 1.60mm footprint. Verify PCB layout compatibility before substitution.

Q: Do all substitute parts meet the same compliance requirements?

A: All listed substitutes are ROHS3 compliant and REACH unaffected, matching the original LFXTAL070065 compliance status. All are actively produced and available in Tape & Reel packaging.

Q: Which substitute offers the best inventory availability?

A: ECS-240-9-33B-CWN-TR has the highest inventory level at 66,073 pieces. LFXTAL070065REEL has 6,686 pieces available. C3E-24.000-9-1015-X-R has 11,540 pieces. Inventory levels are subject to change; consult current stock status for procurement decisions.

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