ECS-196-20-5PXDN-TR Equivalent & Substitute Parts

Part Overview

The ECS-196-20-5PXDN-TR is a 19.6608 MHz crystal oscillator in HC-49/US surface mount package, designed for applications requiring precise frequency control with ±30ppm tolerance. This part is currently Active and available in high volume (898 pcs in stock). Equivalent and substitute parts may be required due to inventory constraints, design revisions, or specific application requirements related to frequency stability ranges and operating temperature specifications.

Substiute Parts

ECS-196-20-5PXDN-TR

ECS Inc.In Stock: 911ECS-196-20-5PXDN-TR Datasheet

Current PartRFQ

ECS-196.6-20-5PX-TR

ECS Inc.In Stock: 15599ECS-196.6-20-5PX-TR Datasheet

SimilarRFQ

ECS-196-20-5PDN-TR

ECS Inc.In Stock: 1326ECS-196-20-5PDN-TR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECS-196-20-5PXDN-TR is determined by the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 19.6608 MHz
• Frequency Tolerance: ±30ppm
• Load Capacitance: 20pF
• ESR: 40 Ohms
• Package / Case: HC-49/US
• Mounting Type: Surface Mount
• Physical Dimensions: 0.449" L x 0.189" W (11.40mm x 4.80mm)

Variable Parameters (Allowable Differences):

• Frequency Stability: ±100ppm (main part) to ±50ppm (substitute)
• Operating Temperature Range: -40°C ~ 85°C (main part) to -10°C ~ 70°C (substitute)
• Product Status: Active or Not For New Designs
• RoHS Compliance: ROHS3 Compliant or non-compliant
• Series designation: CSM-7X-DN, CSM-7X, or CSM-7

The two identified substitute parts maintain all mandatory electrical and mechanical parameters while differing in frequency stability specifications and operating temperature ranges.

Parameter Comparison

Engineering Selection Recommendations

ECS-196.6-20-5PX-TR is the preferred substitute when the main part is unavailable. This part maintains ROHS3 compliance and Active product status. The operating temperature range (-10°C ~ 70°C) is narrower than the main part; applications requiring operation below -10°C or above 70°C must use the main part or ECS-196-20-5PDN-TR. The improved frequency stability (±50ppm versus ±100ppm) provides enhanced performance in temperature-sensitive applications.

ECS-196-20-5PDN-TR is a parametric equivalent with identical frequency tolerance and operating temperature range to the main part. However, this part carries "Not For New Designs" status and is RoHS non-compliant. Use of this substitute is restricted to legacy system maintenance or applications where RoHS compliance is not required.

Frequently Asked Questions (FAQ)

Q: Can ECS-196.6-20-5PX-TR be used as a direct replacement for ECS-196-20-5PXDN-TR?

A: Yes, for applications operating within -10°C to 70°C. The electrical parameters (frequency, tolerance, load capacitance, ESR) and physical package are identical. Applications requiring operation outside this temperature range must use the main part or ECS-196-20-5PDN-TR.

Q: What is the difference between frequency tolerance and frequency stability?

A: Frequency tolerance (±30ppm) specifies the initial accuracy at room temperature. Frequency stability (±100ppm or ±50ppm) specifies the total frequency variation across the operating temperature range. Both parameters are provided in the specifications.

Q: Is ECS-196-20-5PDN-TR suitable for new designs?

A: No. This part is marked "Not For New Designs" and is RoHS non-compliant. It is available only for legacy system support or applications where RoHS compliance is not a requirement.

Q: Are all three parts mechanically interchangeable?

A: Yes. All three parts use the HC-49/US package with identical dimensions (0.449" L x 0.189" W, 11.40mm x 4.80mm) and maximum seated height (0.169" / 4.30mm). PCB footprints and mounting procedures are identical.

Q: Which substitute offers the best frequency stability?

A: ECS-196.6-20-5PX-TR provides ±50ppm frequency stability, compared to ±100ppm for both the main part and ECS-196-20-5PDN-TR. This improved stability may benefit applications sensitive to frequency drift across temperature variations.