TXC CORPORATION 7V20070004 20 MHz Crystal Equivalent & Substitute Parts

Part Overview

The TXC CORPORATION 7V20070004 is a 20 MHz fundamental mode crystal oscillator in 4-SMD surface mount package with no lead configuration. This component operates at 20.0000 MHz with ±30ppm frequency stability and 18pF load capacitance. The part is Active status and RoHS Compliant, suitable for applications requiring precise frequency reference in compact form factors. Substitute parts are identified based on matching electrical specifications and mechanical compatibility within the 20 MHz crystal category.

Key Parameters

Parameter	Value
Frequency	20 MHz
Frequency Stability	±30ppm
Load Capacitance	18pF
ESR (Equivalent Series Resistance)	60 Ohms
Operating Mode	Fundamental
Operating Temperature Range	-20°C to 70°C
Mounting Type	Surface Mount
Package / Case	4-SMD, No Lead
Size / Dimension	3.20mm x 2.50mm
RoHS Status	RoHS Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 7V20070004 is determined by the following critical parameters: frequency (20 MHz), frequency stability (±30ppm), operating mode (Fundamental), operating temperature range (-20°C to 70°C), mounting type (Surface Mount), package type (4-SMD, No Lead), and RoHS compliance status.

Direct Substitutes maintain all electrical and mechanical parameters identical to the main part:

Load Capacitance: 18pF
ESR: 60 Ohms
Package dimensions: 3.20mm x 2.50mm

Similar Substitutes share the core frequency, stability, and operating characteristics but differ in one or more of the following parameters: Load Capacitance, ESR value, or physical dimensions. These parts are functionally compatible in applications where the specific parameter variance is acceptable within circuit design tolerances.

Parameter Comparison

Part Number	Manufacturer	Frequency	Frequency Stability	Load Capacitance	ESR (Ohms)	Package Dimensions (mm)	Height Max (mm)	RoHS Status	Product Status
7V20070004	TXC CORPORATION	20 MHz	±30ppm	18pF	60	3.20 x 2.50	0.90	RoHS Compliant	Active
7M-20.000MAAJ-T	TXC CORPORATION	20 MHz	±30ppm	18pF	60	3.20 x 2.50	0.80	RoHS Compliant	Active
8Z-20.000MAAJ-T	TXC CORPORATION	20 MHz	±30ppm	18pF	100	2.50 x 2.00	0.55	RoHS Compliant	Active
RH100-20.000-16-3030-TR	Raltron Electronics	20 MHz	±30ppm	16pF	70	3.20 x 2.50	0.80	ROHS3 Compliant	Active
RH100-20.000-20-3030-TR	Raltron Electronics	20 MHz	±30ppm	20pF	70	3.20 x 2.50	0.80	ROHS3 Compliant	Active

Engineering Selection Recommendations

Direct Substitution (Preferred): The 7M-20.000MAAJ-T from TXC CORPORATION is the primary direct substitute. It maintains identical electrical specifications (20 MHz, ±30ppm, 18pF load capacitance, 60 Ohms ESR) and package configuration. Both parts are Active status and RoHS Compliant. The 7M series offers reduced height (0.80mm vs 0.90mm), providing improved PCB clearance in space-constrained applications.

Alternative Substitutes (Parameter Variance): The 8Z-20.000MAAJ-T (TXC CORPORATION) and Raltron Electronics RH100 series parts are functionally compatible alternatives where circuit design accommodates parameter differences. The 8Z-20.000MAAJ-T features higher ESR (100 Ohms) and smaller footprint (2.50mm x 2.00mm). The RH100-20.000-16-3030-TR and RH100-20.000-20-3030-TR variants differ in load capacitance (16pF and 20pF respectively) and ESR (70 Ohms). All substitute parts maintain Active product status and appropriate RoHS compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can the 7M-20.000MAAJ-T directly replace the 7V20070004 without circuit modification? A: Yes. The 7M-20.000MAAJ-T maintains identical electrical parameters (20 MHz frequency, ±30ppm stability, 18pF load capacitance, 60 Ohms ESR) and package type (4-SMD, No Lead). The reduced height (0.80mm vs 0.90mm) is a mechanical improvement with no negative impact on circuit function.

Q: What is the impact of using the 8Z-20.000MAAJ-T with 100 Ohms ESR instead of 60 Ohms? A: ESR affects crystal oscillator circuit performance, including startup time and power consumption. The 100 Ohms ESR variant requires circuit validation to confirm compatibility with the oscillator design. Load capacitance remains identical at 18pF.

Q: Are the Raltron Electronics RH100 series parts compatible with the 7V20070004? A: The RH100 series maintains 20 MHz frequency and ±30ppm stability. However, load capacitance differs (16pF or 20pF vs 18pF) and ESR is 70 Ohms. These parts are functionally compatible in applications where load capacitance tolerance is within circuit design specifications.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging? A: Cut Tape packaging is supplied in individual strips for lower-volume applications. Tape & Reel packaging is supplied on continuous reels for automated assembly processes. Both packaging formats contain identical components; selection depends on manufacturing process requirements.

Q: Do all substitute parts meet RoHS compliance requirements? A: Yes. The 7M-20.000MAAJ-T and 8Z-20.000MAAJ-T are RoHS Compliant. The Raltron Electronics RH100 series parts are ROHS3 Compliant. Both compliance standards are acceptable for RoHS-regulated applications.

Q: Can the smaller 8Z-20.000MAAJ-T (2.50mm x 2.00mm) be used in a PCB layout designed for the 3.20mm x 2.50mm footprint? A: The 8Z-20.000MAAJ-T has a smaller footprint and reduced height (0.55mm). PCB layout compatibility requires verification of pad spacing and clearance requirements. The component can be mounted on a larger footprint with appropriate pad design, but this requires engineering review.

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