7V-24.000MDHV-T Equivalent & Substitute Parts Reference

Part Overview

The 7V-24.000MDHV-T is a 24 MHz surface mount crystal oscillator manufactured by TXC CORPORATION. This fundamental mode crystal is specified for 8pF load capacitance with 60 Ohms equivalent series resistance, housed in a 4-SMD, No Lead package measuring 3.20mm x 2.50mm. The component is Active status and RoHS Compliant, suitable for applications requiring precise 24 MHz frequency generation across the -40°C to 85°C operating temperature range. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Frequency	24.0000	MHz	Critical - Must match exactly
Frequency Tolerance	±20	ppm	Critical - Determines accuracy class
Load Capacitance	8	pF	Critical - Affects circuit compatibility
ESR (Equivalent Series Resistance)	60	Ohms	Important - Influences oscillator startup and stability
Operating Temperature Range	-40 to 85	°C	Critical - Application environment requirement
Package / Case	4-SMD, No Lead	-	Critical - Physical and electrical interface
Mounting Type	Surface Mount	-	Critical - Assembly process compatibility
RoHS Status	RoHS Compliant	-	Important - Regulatory compliance

Substitute Part Grouping Explanation

Substitute parts for the 7V-24.000MDHV-T are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

Frequency: 24.0000 MHz (exact match required)
Frequency Tolerance: ±20 ppm (exact match required)
Operating Temperature Range: -40°C to 85°C (minimum coverage required)
Package / Case: 4-SMD, No Lead (exact match required)
Mounting Type: Surface Mount (exact match required)

Allowable Variation Parameters:

Load Capacitance: Substitutes with 10pF are acceptable when circuit design accommodates higher load capacitance specification
ESR: Substitutes with ESR values of 60, 100, or 120 Ohms are acceptable within fundamental mode crystal performance envelope
Physical Dimensions: Smaller footprints are acceptable provided 4-SMD, No Lead package format is maintained
Packaging Format: Tape & Reel (TR) and Cut Tape (CT) are both acceptable for manufacturing environments

Compliance Parameters:

RoHS Status: ROHS3 Compliant substitutes are acceptable
REACH Status: REACH Unaffected required for all substitutes
ECCN: EAR99 classification maintained across all substitutes

Parameter Comparison

Parameter	7V-24.000MDHV-T (TXC)	ABM10-24.000MHZ-D30-T3 (Abracon)	ECS-240-10-36-JGN-TR (ECS Inc.)	IXA12-HF5F10-24.000MHZ (ILSI)
Manufacturer	TXC CORPORATION	Abracon LLC	ECS Inc.	ILSI
Frequency	24 MHz	24 MHz	24 MHz	24 MHz
Frequency Tolerance	±20 ppm	±20 ppm	±20 ppm	±20 ppm
Load Capacitance	8 pF	10 pF	10 pF	10 pF
ESR	60 Ohms	100 Ohms	60 Ohms	120 Ohms
Operating Temperature	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Package / Case	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead
Size / Dimension	3.20mm x 2.50mm	2.50mm x 2.00mm	2.50mm x 2.00mm	2.00mm x 1.60mm
Height - Seated (Max)	0.90 mm	0.70 mm	0.65 mm	0.55 mm
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Frequency Stability	±30 ppm	±30 ppm	±30 ppm	±30 ppm
Packaging Format	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT)

Engineering Selection Recommendations

ABM10-24.000MHZ-D30-T3 (Abracon LLC)

This substitute maintains identical frequency, tolerance, and operating temperature specifications. The 10pF load capacitance represents a 25% increase from the main part specification. The 100 Ohms ESR is within acceptable fundamental mode crystal performance parameters. ROHS3 compliance exceeds the RoHS Compliant requirement of the main part. Smaller physical footprint (2.50mm x 2.00mm) and reduced height (0.70mm) provide layout advantages. Suitable for applications where circuit design accommodates 10pF load capacitance specification.

ECS-240-10-36-JGN-TR (ECS Inc.)

This substitute provides identical frequency, tolerance, and operating temperature specifications with matching 60 Ohms ESR to the main part. The 10pF load capacitance requires circuit design verification. ROHS3 compliance and REACH Unaffected status meet regulatory requirements. Identical packaging format (Tape & Reel) and 4-SMD, No Lead configuration ensure manufacturing process compatibility. Reduced height (0.65mm) and smaller footprint (2.50mm x 2.00mm) support high-density PCB layouts. Direct ESR match minimizes oscillator circuit redesign requirements.

IXA12-HF5F10-24.000MHZ (ILSI)

This substitute meets frequency, tolerance, and operating temperature requirements with AEC-Q200 automotive qualification rating. The 10pF load capacitance and 120 Ohms ESR require circuit design evaluation. ROHS3 compliance and REACH Unaffected status satisfy regulatory requirements. Smallest physical footprint (2.00mm x 1.60mm) and lowest profile (0.55mm) enable space-constrained applications. Cut Tape packaging format requires compatible pick-and-place equipment. Suitable for automotive and high-reliability applications requiring AEC-Q200 qualification.

Frequently Asked Questions (FAQ)

Q: Can the 7V-24.000MDHV-T be directly replaced with a substitute part having 10pF load capacitance instead of 8pF?

A: Direct replacement requires circuit design verification. The oscillator circuit must be evaluated to confirm stable operation at 10pF load capacitance. Load capacitance affects frequency accuracy and startup characteristics. Consult the oscillator IC datasheet for load capacitance tolerance specifications before substitution.

Q: What is the impact of different ESR values (60, 100, 120 Ohms) on oscillator performance?

A: ESR affects oscillator startup time, power consumption, and frequency stability. Higher ESR values increase startup time and power draw. All three ESR values (60, 100, 120 Ohms) fall within acceptable fundamental mode crystal performance envelope for 24 MHz applications. Circuit-level testing is recommended for applications with tight frequency stability or low-power requirements.

Q: Are the smaller physical dimensions of substitute parts compatible with existing PCB layouts?

A: Substitute parts with smaller footprints (2.50mm x 2.00mm or 2.00mm x 1.60mm) are physically compatible with PCB pads designed for the main part (3.20mm x 2.50mm). Reduced height (0.70mm, 0.65mm, or 0.55mm versus 0.90mm) provides additional clearance for component placement. Verify PCB pad dimensions and solder paste stencil design for optimal assembly results.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?

A: Tape & Reel packaging is supplied on continuous carrier tape wound on reels, suitable for high-volume automated assembly. Cut Tape packaging is supplied as individual segments cut from carrier tape, suitable for lower-volume or manual assembly processes. Both formats contain identical components; packaging selection depends on manufacturing equipment and volume requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. The main part is RoHS Compliant. All substitute parts are ROHS3 Compliant, which exceeds the RoHS Compliant requirement. ROHS3 represents the current RoHS directive revision and is fully backward compatible with RoHS Compliant specifications.

Q: Can substitute parts be mixed within a single production batch?

A: Mixing substitute parts within a single batch is not recommended without design verification. Different ESR values and load capacitance specifications may result in frequency variation across the batch. Maintain consistent part sourcing within a production lot to ensure uniform frequency performance and minimize frequency distribution across assembled units.

Q: What does AEC-Q200 qualification mean for the IXA12 substitute?

A: AEC-Q200 is an automotive electronics qualification standard. Components meeting AEC-Q200 have undergone stress testing and reliability validation for automotive applications. This qualification is optional for non-automotive applications but indicates higher reliability standards and extended temperature cycling validation.

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