7V-24.000MDDV-T Equivalent & Substitute Parts

Part Overview

The 7V-24.000MDDV-T is a 24 MHz fundamental mode crystal oscillator manufactured by TXC CORPORATION, designed for surface mount applications in 4-SMD, No Lead package configuration. This Active product operates across -20°C to 70°C with ±20ppm frequency stability and 8pF load capacitance. Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate varying circuit load capacitance requirements across different application platforms.

Key Parameters

Parameter	Value	Unit
Frequency	24.0000	MHz
Frequency Stability	±20	ppm
Load Capacitance	8	pF
ESR (Equivalent Series Resistance)	60	Ohms
Operating Mode	Fundamental
Operating Temperature Range	-20 to 70	°C
Package Type	4-SMD, No Lead
Mounting Type	Surface Mount
RoHS Status	RoHS Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 7V-24.000MDDV-T is determined by the following critical parameters:

Primary Matching Criteria:

Frequency: 24 MHz (exact match required)
Frequency Stability: ±20ppm (exact match required)
Operating Mode: Fundamental (exact match required)
Operating Temperature Range: -20°C to 70°C (exact match required)
Package Type: 4-SMD, No Lead (exact match required)
Mounting Type: Surface Mount (exact match required)

Secondary Compatibility Factors:

Load Capacitance: 8pF (primary specification); 10pF and 6pF variants acceptable with circuit design verification
ESR: 60 Ohms (primary specification); variations up to 150 Ohms acceptable depending on circuit impedance requirements
Physical Dimensions: Variations permitted within SMD package constraints
RoHS/REACH Compliance: Must maintain regulatory compliance status

Substitute parts are grouped based on load capacitance compatibility, as this parameter directly affects circuit resonance and frequency accuracy. Parts with matching 8pF load capacitance are direct substitutes. Parts with 10pF or 6pF load capacitance require circuit-level evaluation but remain functionally compatible within the 24 MHz ±20ppm specification.

Parameter Comparison

Part Number	Manufacturer	Frequency (MHz)	Frequency Stability (ppm)	Load Capacitance (pF)	ESR (Ohms)	Package	RoHS Status	Inventory (Pcs)
7V-24.000MDDV-T	TXC CORPORATION	24.0000	±20	8	60	4-SMD, No Lead	RoHS Compliant	1092
7R-24.000MDDV-T	TXC CORPORATION	24.0000	±20	8	150	4-SMD, No Lead	RoHS Compliant	1875
7R-24.000MDDB-T	FTS	24.0000	±20	6	150	4-SMD, No Lead	RoHS Compliant	2415
7V-24.000MDDQ-T	TXC CORPORATION	24.0000	±20	10	60	4-SMD, No Lead	ROHS3 Compliant	2654
425F22A024M0000	CTS-Frequency Controls	24.0000	±20	10	80	4-SMD, No Lead	ROHS3 Compliant	2800
ABM10-24.000MHZ-E20-T	Abracon LLC	24.0000	±20	10	100	4-SMD, No Lead	ROHS3 Compliant	2280
ECS-240-10-36-JTM-TR	ECS Inc.	24.0000	±20	10	60	4-SMD, No Lead	ROHS3 Compliant	1948

Engineering Selection Recommendations

Direct Substitutes (Identical Load Capacitance - 8pF):

The 7R-24.000MDDV-T (TXC CORPORATION) is a direct functional substitute with matching 8pF load capacitance. The primary difference is ESR specification (150 Ohms versus 60 Ohms). This part maintains Active product status and RoHS compliance. Selection is appropriate when ESR tolerance permits higher impedance operation.

Compatible Substitutes (10pF Load Capacitance):

The 7V-24.000MDDQ-T, 425F22A024M0000, ABM10-24.000MHZ-E20-T, and ECS-240-10-36-JTM-TR all feature 10pF load capacitance with ±20ppm stability. These parts are compatible substitutes when circuit design accommodates 10pF load capacitance specification. All maintain Active product status and ROHS3 compliance. ESR values range from 60 to 100 Ohms across these options.

Alternative Substitute (6pF Load Capacitance):

The 7R-24.000MDDB-T (FTS) operates at 6pF load capacitance with 150 Ohms ESR. This part is compatible when circuit design supports lower load capacitance operation. RoHS compliance is confirmed; REACH status requires verification upon request.

Compliance Considerations:

All substitute parts maintain RoHS compliance (either RoHS or ROHS3 designation). REACH compliance is confirmed for TXC CORPORATION, CTS-Frequency Controls, Abracon LLC, and ECS Inc. products. FTS REACH status requires confirmation through direct inquiry.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 7V-24.000MDDV-T with the 7R-24.000MDDV-T?

A: Yes. Both parts operate at 24 MHz ±20ppm with 8pF load capacitance in 4-SMD, No Lead package. The primary difference is ESR: 7R-24.000MDDV-T specifies 150 Ohms versus 60 Ohms for the 7V-24.000MDDV-T. Substitution is valid when circuit impedance design accommodates the higher ESR specification.

Q: What is the difference between 8pF and 10pF load capacitance variants?

A: Load capacitance directly affects the crystal's resonant frequency and circuit tuning. The 7V-24.000MDDV-T (8pF) and 10pF variants (7V-24.000MDDQ-T, 425F22A024M0000, ABM10-24.000MHZ-E20-T, ECS-240-10-36-JTM-TR) are designed for different circuit load conditions. Substitution between these requires verification that the receiving circuit's load capacitance specification matches the crystal's rated load capacitance.

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

A: All listed substitute parts use 4-SMD, No Lead package configuration suitable for surface mount assembly. Physical dimensions vary: the 7V-24.000MDDV-T measures 3.20mm x 2.50mm, while most 10pF variants measure 2.50mm x 2.00mm. Verify PCB footprint compatibility before substitution.

Q: Which substitute offers the best ESR performance?

A: The 7V-24.000MDDV-T and ECS-240-10-36-JTM-TR both specify 60 Ohms ESR, the lowest among listed options. The 7V-24.000MDDV-T maintains this specification with 8pF load capacitance; ECS-240-10-36-JTM-TR achieves it with 10pF load capacitance.

Q: What is the inventory status for substitute parts?

A: Current inventory levels are: 7R-24.000MDDV-T (1875 Pcs), 7R-24.000MDDB-T (2415 Pcs), 7V-24.000MDDQ-T (2654 Pcs), 425F22A024M0000 (2800 Pcs), ABM10-24.000MHZ-E20-T (2280 Pcs), ECS-240-10-36-JTM-TR (1948 Pcs). All parts are listed as New Original In Stock.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts maintain RoHS compliance status (either RoHS Compliant or ROHS3 Compliant designation). REACH compliance is confirmed for all manufacturers except FTS, which requires direct verification.

Q: Can I use the 6pF variant (7R-24.000MDDB-T) as a substitute?

A: The 7R-24.000MDDB-T is compatible when circuit design supports 6pF load capacitance operation. This represents a lower load capacitance specification than the primary 8pF part. Substitution requires confirmation that the receiving circuit's load capacitance specification accommodates 6pF operation.

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