7V24077004 24 MHz Crystal Equivalent & Substitute Parts

Part Overview

The TXC CORPORATION 7V24077004 is a 24 MHz fundamental mode crystal oscillator in 4-SMD surface mount package with no lead configuration. This part is specified for 9pF load capacitance, 60 Ohms equivalent series resistance (ESR), and operates across the industrial temperature range of -40°C to 85°C. The component is Active product status and RoHS Compliant, suitable for timing and frequency control applications requiring precise 24 MHz oscillation at ±10ppm frequency tolerance.

Substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility permits selection from multiple qualified manufacturers offering equivalent electrical and mechanical performance.

Key Parameters

Parameter	Value	Unit	Substitution Criticality
Frequency	24.0000	MHz	Critical - Must Match Exactly
Frequency Tolerance	±10	ppm	Critical - Must Match or Better
Load Capacitance	9 or 10	pF	Critical - Determines Circuit Compatibility
ESR (Equivalent Series Resistance)	40 to 100	Ohms	Important - Affects Oscillator Startup
Operating Temperature Range	-40 to 85	°C	Critical - Must Match or Exceed
Package / Case	4-SMD, No Lead	-	Critical - Physical Compatibility
Mounting Type	Surface Mount	-	Critical - Assembly Process
RoHS Status	RoHS Compliant	-	Important - Regulatory Compliance

Substitute Part Grouping Explanation

Substitution logic for the 7V24077004 is based on strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

Frequency must be exactly 24.0000 MHz
Frequency tolerance must be ±10ppm or better
Operating temperature range must be -40°C to 85°C minimum
Package must be 4-SMD, No Lead surface mount configuration
Load capacitance must be either 9pF (direct match) or 10pF (circuit-dependent compatibility)

Secondary Compatibility Factors:

ESR values between 40 and 100 Ohms are acceptable within the 24 MHz crystal category
RoHS3 Compliance is acceptable for RoHS Compliant applications
Moisture Sensitivity Level 1 (Unlimited) is standard for this product category
Physical dimensions may vary within SMD package tolerances

Grouping Classification:

Direct Equivalents (9pF Load Capacitance): Parts with identical 9pF load capacitance specification
Compatible Alternatives (10pF Load Capacitance): Parts with 10pF load capacitance, substitutable when circuit design permits load capacitance adjustment

Parameter Comparison

Manufacturer	Part Number	Frequency (MHz)	Load Capacitance (pF)	ESR (Ohms)	Frequency Tolerance (ppm)	Operating Temp (°C)	Package	RoHS Status	Inventory (Pcs)
TXC CORPORATION	7V24077004	24.0000	9	60	±10	-40 to 85	4-SMD, No Lead	RoHS Compliant	870
Raltron Electronics	RH100-24.000-9-1015-EXT-TR	24.0000	9	60	±10	-40 to 85	4-SMD, No Lead	ROHS3 Compliant	2897
ECS Inc.	ECS-240-9-33B-CWN-TR	24.0000	9	40	±10	-40 to 85	4-SMD, No Lead	ROHS3 Compliant	66073
Diodes Incorporated	FL2400097	24.0000	9	50	±10	-40 to 85	4-SMD, No Lead	ROHS3 Compliant	5959
IQD Frequency Products	LFXTAL071177	24.0000	9	40	±10	-40 to 85	4-SMD, No Lead	ROHS3 Compliant	2455
Jauch Quartz	Q 24,0-JXS21-9-10/15-T1-FU-WA-LF	24.0000	9	80	±10	-40 to 85	4-SMD, No Lead	ROHS3 Compliant	2707
CTS-Frequency Controls	402F2401XIAR	24.0000	10	100	±10	-40 to 85	4-SMD, No Lead	ROHS3 Compliant	21392
Aker Technology Corp	C3E-24.000-10-1015-X-R	24.0000	10	100	±10	-40 to 85	4-SMD, No Lead	ROHS3 Compliant	8116
ECS Inc.	ECS-240-10-37-CWN-TR	24.0000	10	80	±10	-40 to 85	4-SMD, No Lead	ROHS3 Compliant	13778
Jauch Quartz	Q 24,0-JXS21-10-10/15-T1-FU-WA-LF	24.0000	10	80	±10	-40 to 85	4-SMD, No Lead	ROHS3 Compliant	7086
Jauch Quartz	Q 24,0-JXS32-10-10/15-T1-FU-WA-LF	24.0000	10	40	±10	-40 to 85	4-SMD, No Lead	ROHS3 Compliant	2371

Engineering Selection Recommendations

Direct Equivalent Selection (9pF Load Capacitance):

The following parts are direct electrical and mechanical equivalents to the 7V24077004:

RH100-24.000-9-1015-EXT-TR (Raltron Electronics): Identical 9pF load capacitance and 60 Ohms ESR. ROHS3 Compliant. Highest inventory availability at 2897 pieces. Suitable for direct replacement without circuit modification.
ECS-240-9-33B-CWN-TR (ECS Inc.): 9pF load capacitance with 40 Ohms ESR. ROHS3 Compliant. Largest inventory at 66073 pieces. Lower ESR may improve oscillator startup characteristics. Direct substitution compatible.
FL2400097 (Diodes Incorporated): 9pF load capacitance with 50 Ohms ESR. ROHS3 Compliant. Inventory of 5959 pieces. ESR within acceptable range for 24 MHz applications.
LFXTAL071177 (IQD Frequency Products): 9pF load capacitance with 40 Ohms ESR. ROHS3 Compliant. Inventory of 2455 pieces. Direct substitution compatible.
Q 24,0-JXS21-9-10/15-T1-FU-WA-LF (Jauch Quartz): 9pF load capacitance with 80 Ohms ESR. ROHS3 Compliant. Inventory of 2707 pieces. ESR slightly higher than primary part but within acceptable operating range.

Compatible Alternative Selection (10pF Load Capacitance):

The following parts feature 10pF load capacitance and are substitutable when circuit design permits load capacitance adjustment:

ECS-240-10-37-CWN-TR (ECS Inc.): 10pF load capacitance with 80 Ohms ESR. ROHS3 Compliant. Highest inventory at 13778 pieces. Requires circuit load capacitance adjustment.
Q 24,0-JXS21-10-10/15-T1-FU-WA-LF (Jauch Quartz): 10pF load capacitance with 80 Ohms ESR. ROHS3 Compliant. Inventory of 7086 pieces.
Q 24,0-JXS32-10-10/15-T1-FU-WA-LF (Jauch Quartz): 10pF load capacitance with 40 Ohms ESR. ROHS3 Compliant. Inventory of 2371 pieces. Lower ESR specification.
402F2401XIAR (CTS-Frequency Controls): 10pF load capacitance with 100 Ohms ESR. ROHS3 Compliant. Highest inventory at 21392 pieces. Higher ESR requires circuit verification.
C3E-24.000-10-1015-X-R (Aker Technology Corp): 10pF load capacitance with 100 Ohms ESR. ROHS3 Compliant. Inventory of 8116 pieces.

Selection Criteria Summary:

All substitute parts maintain identical frequency (24.0000 MHz), frequency tolerance (±10ppm), operating temperature range (-40°C to 85°C), and package configuration (4-SMD, No Lead). All parts are Active product status and ROHS3 Compliant. Selection between direct equivalents (9pF) and compatible alternatives (10pF) depends on circuit design specifications and load capacitance requirements of the oscillator circuit.

Frequently Asked Questions (FAQ)

Q: Can I substitute a 10pF load capacitance crystal for the 9pF specification?

A: Substitution of 10pF load capacitance parts for 9pF specifications requires circuit design verification. The oscillator circuit must be capable of accommodating the different load capacitance value. Load capacitance affects the crystal's operating frequency and stability. Circuit designers must confirm that the external load capacitance network can be adjusted to maintain frequency accuracy within ±10ppm tolerance. Direct substitution without circuit modification is not recommended.

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

A: ESR values in the substitute parts range from 40 to 100 Ohms, compared to the primary part's 60 Ohms specification. Lower ESR values (40 Ohms) improve oscillator startup characteristics and reduce power consumption. Higher ESR values (80-100 Ohms) require verification that the oscillator circuit can sustain oscillation. All values within this range are acceptable for 24 MHz fundamental mode crystals in standard industrial applications. Circuit designers should confirm oscillator circuit compatibility with the specific ESR value.

Q: Are all substitute parts RoHS compliant?

A: Yes. The primary part 7V24077004 is RoHS Compliant. All substitute parts listed are ROHS3 Compliant, which is acceptable for RoHS Compliant applications. ROHS3 represents the current RoHS directive compliance standard and is fully compatible with RoHS Compliant requirements.

Q: What is the difference between the 4-SMD package variants?

A: All parts in this comparison use 4-SMD, No Lead surface mount package configuration. Physical dimensions vary slightly between manufacturers. The primary part and most direct equivalents use 0.126" L x 0.098" W (3.20mm x 2.50mm) footprint. Some alternatives use 0.079" L x 0.063" W (2.00mm x 1.60mm) footprint. Height specifications range from 0.022" to 0.035" (0.55mm to 0.90mm). PCB layout and reflow oven profiles must accommodate the specific physical dimensions of the selected part.

Q: Which substitute part offers the best inventory availability?

A: ECS-240-9-33B-CWN-TR offers the highest inventory at 66073 pieces. This part is a direct 9pF equivalent with 40 Ohms ESR and is suitable for immediate substitution without circuit modification. CTS-Frequency Controls 402F2401XIAR offers the second-highest inventory at 21392 pieces but requires 10pF load capacitance circuit compatibility verification.

Q: Can I use multiple substitute parts interchangeably in production?

A: Parts with identical 9pF load capacitance specifications (RH100-24.000-9-1015-EXT-TR, ECS-240-9-33B-CWN-TR, FL2400097, LFXTAL071177, Q 24,0-JXS21-9-10/15-T1-FU-WA-LF) are interchangeable for applications designed for 9pF load capacitance. ESR variations between 40 and 80 Ohms are within acceptable operating parameters for 24 MHz crystals. Parts with 10pF load capacitance require separate circuit design verification and are not interchangeable with 9pF parts without circuit modification. Production qualification testing is recommended when switching between manufacturers or load capacitance specifications.

Q: What is Moisture Sensitivity Level (MSL) and why is it important?

A: Moisture Sensitivity Level 1 (Unlimited) indicates that the crystal component has no moisture sensitivity restrictions. This means the part can be stored and handled without special moisture control measures, and there are no time-to-reflow limitations after package opening. All parts in this comparison specify MSL 1 (Unlimited) or Not Applicable, indicating standard handling procedures are sufficient for assembly and storage.

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