7R-24.000MEEC-T Equivalent & Substitute Parts

Part Overview

The 7R-24.000MEEC-T is a 24 MHz surface mount crystal manufactured by TXC CORPORATION. This component operates in fundamental mode with a 9pF load capacitance and 150 Ohms equivalent series resistance (ESR). The part is housed in a 4-SMD, No Lead package measuring 2.05mm x 1.65mm with a maximum seated height of 0.60mm. The 7R-24.000MEEC-T maintains Active product status and is RoHS Compliant with MSL 1 (Unlimited) moisture sensitivity rating. Substitute parts are identified when equivalent frequency and core electrical parameters are maintained while load capacitance specifications may vary within acceptable design tolerances.

Substiute Parts

7R-24.000MEEC-T

TXC CORPORATIONIn Stock: 17947R-24.000MEEC-T Datasheet

Current PartRFQ

7R-24.000MEEV-T

TXC CORPORATIONIn Stock: 20037R-24.000MEEV-T Datasheet

SimilarRFQ

7R-24.000MEEY-T

TXC CORPORATIONIn Stock: 36327R-24.000MEEY-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 7R-24.000MEEC-T are qualified based on the following criteria:

Matching Parameters (Required for Substitution):

• Frequency: 24 MHz
• ESR: 150 Ohms
• Operating Mode: Fundamental
• Mounting Type: Surface Mount
• Package / Case: 4-SMD, No Lead
• Physical Dimensions: 0.081" L x 0.065" W (2.05mm x 1.65mm)
• Height - Seated (Max): 0.024" (0.60mm)
• RoHS Status: RoHS Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• Product Status: Active

Variable Parameter (Allows Substitution):

• Load Capacitance: 9pF (main part), 8pF (7R-24.000MEEV-T), 7pF (7R-24.000MEEY-T)

The 7R-24.000MEEV-T and 7R-24.000MEEY-T are qualified substitutes because they maintain identical frequency, ESR, operating mode, package configuration, and compliance certifications. Load capacitance variation reflects different circuit design requirements and does not prevent substitution when the application circuit is designed for the specific load capacitance value.

Parameter Comparison

Engineering Selection Recommendations

All three parts—7R-24.000MEEC-T, 7R-24.000MEEV-T, and 7R-24.000MEEY-T—maintain Active product status with full RoHS Compliance and MSL 1 (Unlimited) moisture sensitivity rating. Selection between these parts is determined by circuit load capacitance requirements:

• 7R-24.000MEEC-T: Select when circuit design specifies 9pF load capacitance
• 7R-24.000MEEV-T: Select when circuit design specifies 8pF load capacitance
• 7R-24.000MEEY-T: Select when circuit design specifies 7pF load capacitance

All parts are manufactured by TXC CORPORATION and share identical frequency (24 MHz), ESR (150 Ohms), package configuration (4-SMD, No Lead), and physical dimensions. Packaging format differs between 7R-24.000MEEC-T and 7R-24.000MEEV-T (Cut Tape) versus 7R-24.000MEEY-T (Tape & Reel), which affects procurement and assembly processes but not electrical performance.

Frequently Asked Questions (FAQ)

Q: Can I substitute 7R-24.000MEEV-T (8pF) for 7R-24.000MEEC-T (9pF)?

A: Substitution is possible only if the receiving circuit is designed for 8pF load capacitance. Load capacitance is a critical design parameter that affects oscillation frequency and circuit stability. Direct substitution without circuit redesign is not recommended.

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

A: Cut Tape packaging (7R-24.000MEEC-T and 7R-24.000MEEV-T) is supplied in individual tape segments suitable for manual assembly or small-volume production. Tape & Reel packaging (7R-24.000MEEY-T) is supplied on continuous reels for automated assembly processes. Electrical performance is identical; packaging selection depends on assembly methodology.

Q: Are all three parts RoHS Compliant?

A: Yes. The 7R-24.000MEEC-T, 7R-24.000MEEV-T, and 7R-24.000MEEY-T are all RoHS Compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What does MSL 1 (Unlimited) mean?

A: MSL 1 (Unlimited) indicates that the component has unlimited shelf life and does not require special moisture control during storage or handling. No baking or desiccant storage is required prior to assembly.

Q: Do all parts have the same physical dimensions?

A: Yes. All three parts share identical dimensions: 0.081" L x 0.065" W (2.05mm x 1.65mm) with a maximum seated height of 0.024" (0.60mm). They are mechanically interchangeable in terms of PCB footprint and assembly clearance.

Q: What is the significance of 150 Ohms ESR?

A: ESR (Equivalent Series Resistance) of 150 Ohms is a fundamental electrical characteristic of these crystal oscillators. All three substitute parts maintain this identical ESR value, ensuring consistent electrical behavior in oscillator circuits designed for this specification.