CS10-19.6608MABJ-UT Equivalent & Substitute Parts

Part Overview

The CS10-19.6608MABJ-UT is a 19.6608 MHz crystal oscillator manufactured by Citizen Finedevice Co Ltd, designed for fundamental mode operation with 18pF load capacitance and 50 Ohms equivalent series resistance. This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing production and maintenance applications. Substitute parts must maintain electrical equivalence across frequency, load capacitance, ESR, and operating temperature specifications while accommodating mechanical and packaging variations.

Substiute Parts

CS10-19.6608MABJ-UT

Citizen Finedevice Co LtdIn Stock: 1059CS10-19.6608MABJ-UT Datasheet

Current PartRFQ

ABM7-19.6608MHZ-D2Y-T

Abracon LLCIn Stock: 2157ABM7-19.6608MHZ-D2Y-T Datasheet

DirectRFQ

ECS-196.6-18-23A-EN-TR

ECS Inc.In Stock: 3076ECS-196.6-18-23A-EN-TR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CS10-19.6608MABJ-UT is determined by the following critical parameters:

• Frequency: Must be 19.6608 MHz
• Load Capacitance: Must be 18pF
• Operating Mode: Must be Fundamental
• Package / Case: Must be 2-SMD, No Lead
• Size / Dimension: Must be 0.236" L x 0.138" W (6.00mm x 4.60mm)

Acceptable variations within substitution criteria:

• Frequency Tolerance: May be equal to or tighter than ±30ppm
• Frequency Stability: May be equal to or tighter than ±50ppm
• ESR: May vary within component design specifications
• Operating Temperature Range: May be equal to or broader than -10°C ~ 60°C
• Product Status: Active status preferred for long-term availability

The following parts meet substitution criteria for the CS10-19.6608MABJ-UT:

1. ABM7-19.6608MHZ-D2Y-T (Abracon LLC)
2. ECS-196.6-18-23A-EN-TR (ECS Inc.)

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain electrical equivalence with the CS10-19.6608MABJ-UT across critical parameters: frequency, load capacitance, operating mode, and package configuration.

ABM7-19.6608MHZ-D2Y-T offers tighter frequency tolerance (±20ppm versus ±30ppm) and improved frequency stability (±30ppm versus ±50ppm). This part features an extended operating temperature range (-40°C ~ 85°C) and holds ROHS3 compliance. Height dimension is 0.055" (1.40mm), which exceeds the original part's 0.039" (1.00mm) seated height. This part is subject to REACH regulations.

ECS-196.6-18-23A-EN-TR maintains frequency tolerance and stability specifications identical to the original part. ESR is specified at 60 Ohms compared to the original 50 Ohms. This part provides extended operating temperature range (-40°C ~ 85°C) and ROHS3 compliance. Height dimension is 0.043" (1.10mm), closer to the original specification. REACH status is unaffected.

Selection between substitute parts depends on application-specific requirements regarding frequency stability, ESR tolerance, operating temperature range, and regulatory compliance status.

Frequently Asked Questions (FAQ)

Q: Can ABM7-19.6608MHZ-D2Y-T be used as a direct replacement for CS10-19.6608MABJ-UT?

A: ABM7-19.6608MHZ-D2Y-T meets all critical electrical and mechanical substitution criteria. The primary consideration is the increased seated height of 0.055" (1.40mm) versus the original 0.039" (1.00mm). PCB layout and component clearance must be evaluated for compatibility.

Q: Can ECS-196.6-18-23A-EN-TR be used as a direct replacement for CS10-19.6608MABJ-UT?

A: ECS-196.6-18-23A-EN-TR meets all critical electrical and mechanical substitution criteria. ESR is specified at 60 Ohms compared to the original 50 Ohms. Circuit design must accommodate this ESR variation. Seated height is 0.043" (1.10mm), which is closer to the original specification.

Q: What are the key differences between the two substitute parts?

A: ABM7-19.6608MHZ-D2Y-T provides superior frequency stability (±30ppm) and tighter frequency tolerance (±20ppm). ECS-196.6-18-23A-EN-TR maintains specifications closer to the original part and features a lower seated height (0.043" versus 0.055"). ESR differs between the two substitutes: 50 Ohms for ABM7 and 60 Ohms for ECS.

Q: Are both substitute parts available in active production?

A: Yes. Both ABM7-19.6608MHZ-D2Y-T and ECS-196.6-18-23A-EN-TR are classified as active products with current inventory availability.

Q: What is the impact of ESR variation on circuit performance?

A: ESR affects crystal oscillator startup characteristics and frequency stability. The original part specifies 50 Ohms. ECS-196.6-18-23A-EN-TR specifies 60 Ohms. Circuit design parameters must be evaluated to determine if this 10 Ohm increase is acceptable for the application.

Q: Do the substitute parts have different operating temperature ranges?

A: Yes. The original CS10-19.6608MABJ-UT operates from -10°C ~ 60°C. Both substitute parts extend this range to -40°C ~ 85°C, providing broader environmental capability.

Q: Are there regulatory compliance differences between the substitute parts?

A: ABM7-19.6608MHZ-D2Y-T is REACH Affected and ROHS3 Compliant. ECS-196.6-18-23A-EN-TR is REACH Unaffected and ROHS3 Compliant. Application regulatory requirements must be considered in part selection.