7C20000003 XTAL OSC XO 20.0000MHZ CMOS SMD Equivalent & Substitute Parts

Part Overview

The 7C20000003 is a 20 MHz XO (Standard) CMOS oscillator manufactured by TXC CORPORATION. This surface mount crystal oscillator operates at 3.3V with Enable/Disable functionality, housed in a 4-SMD, No Lead package. The device is Active in product status and RoHS Compliant. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and functional characteristics align with the original component, enabling direct replacement in circuit applications without design modification.

Substiute Parts

7C20000003

TXC CORPORATIONIn Stock: 63467C20000003 Datasheet

Current PartRFQ

SXO53C3B481-20.000M

Suntsu Electronics, Inc.In Stock: 3813SXO53C3B481-20.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7C20000003 is determined by strict alignment of the following critical parameters:

Electrical Specifications:

• Frequency: 20 MHz (exact match required)
• Output: CMOS (exact match required)
• Supply Voltage: 3.3V (exact match required)
• Function: Enable/Disable (exact match required)
• Frequency Stability: ±30ppm (exact match required)
• Operating Temperature: -40°C ~ 85°C (exact match required)

Mechanical Specifications:

• Mounting Type: Surface Mount (exact match required)
• Package / Case: 4-SMD, No Lead (exact match required)
• Size / Dimension: 0.197" L x 0.126" W (5.00mm x 3.20mm) (exact match required)
• Height - Seated (Max): 0.055" (1.40mm) (exact match required)

Functional Characteristics:

• Base Resonator: Crystal (exact match required)
• Type: XO (Standard) (exact match required)

Substitute parts must satisfy all parameters listed above to ensure functional and mechanical compatibility without circuit redesign or PCB layout modification.

Parameter Comparison

Engineering Selection Recommendations

The SXO53C3B481-20.000M manufactured by Suntsu Electronics, Inc. is a direct substitute for the 7C20000003. Both components are Active in product status and meet all critical electrical, mechanical, and functional parameters. The Suntsu part carries ROHS3 Compliant certification, which exceeds the RoHS Compliant status of the TXC part, ensuring enhanced environmental compliance. Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, confirming regulatory alignment. The Suntsu substitute provides specified maximum supply current of 16mA, offering additional design documentation clarity. Selection between these parts may be based on availability, lead time, packaging preference (TXC offers standard packaging; Suntsu offers Bulk packaging), or inventory requirements.

Frequently Asked Questions (FAQ)

Q: Can the SXO53C3B481-20.000M replace the 7C20000003 in existing designs?

A: Yes. The SXO53C3B481-20.000M meets all critical electrical specifications (20 MHz, CMOS output, 3.3V supply, Enable/Disable function, ±30ppm stability, -40°C ~ 85°C operating range) and mechanical requirements (4-SMD No Lead package, 5.00mm x 3.20mm dimensions, 1.40mm maximum height). No circuit redesign or PCB layout modification is required.

Q: Are there any compliance differences between the two parts?

A: Both parts carry EAR99 ECCN and 8542.39.0001 HTSUS classifications. The TXC part is RoHS Compliant; the Suntsu part is ROHS3 Compliant. ROHS3 represents an enhanced compliance standard and is fully compatible with RoHS requirements.

Q: What is the difference in packaging between these parts?

A: The 7C20000003 is supplied in standard packaging; the SXO53C3B481-20.000M is supplied in Bulk packaging. Both use identical 4-SMD, No Lead package format with matching physical dimensions.

Q: Are the frequency stability specifications identical?

A: Yes. Both the 7C20000003 and SXO53C3B481-20.000M specify ±30ppm frequency stability across the -40°C ~ 85°C operating temperature range.

Q: Does the Suntsu part provide additional technical specifications?

A: The Suntsu SXO53C3B481-20.000M specifies maximum supply current of 16mA. The TXC 7C20000003 does not provide this specification in the available documentation. This additional parameter may be useful for power budget calculations in battery-powered or low-power applications.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Identical mechanical dimensions (0.197" L x 0.126" W, 1.40mm maximum height) and 4-SMD, No Lead package format ensure direct PCB footprint compatibility without layout modification.