ECS-196.6-20-1 Crystal Equivalent & Substitute Parts

Part Overview

The ECS-196.6-20-1 is a 19.6608 MHz through-hole crystal oscillator in HC-49/U package with 20pF load capacitance and 20 Ohms equivalent series resistance. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Finding equivalent substitute parts is necessary for maintenance, repair, and legacy system support where this specific frequency and package configuration is required.

Substiute Parts

ECS-196.6-20-1

ECS Inc.In Stock: 1036ECS-196.6-20-1 Datasheet

Current PartRFQ

ECS-196.6-20-1X

ECS Inc.In Stock: 1756ECS-196.6-20-1X Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ECS-196.6-20-1 is determined by strict equivalence across the following critical parameters:

• Frequency: 19.6608 MHz (exact match required)
• Frequency Tolerance: ±30ppm (exact match required)
• Load Capacitance: 20pF (exact match required)
• ESR: 20 Ohms (exact match required)
• Package / Case: HC-49/U (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Temperature Range: -10°C ~ 70°C (exact match required)
• Operating Mode: Fundamental (exact match required)

The substitute part ECS-196.6-20-1X meets all these criteria and is therefore a parametric equivalent suitable for direct replacement in applications requiring this specific crystal configuration.

Parameter Comparison

Engineering Selection Recommendations

The ECS-196.6-20-1X is the direct parametric equivalent for the ECS-196.6-20-1. All electrical and mechanical specifications are identical. The primary distinction is product status and regulatory compliance:

• ECS-196.6-20-1 is classified as Not For New Designs and is RoHS non-compliant
• ECS-196.6-20-1X is Active and ROHS3 Compliant

For applications requiring this 19.6608 MHz crystal with HC-49/U package configuration, the ECS-196.6-20-1X is the recommended selection due to its active product status and improved regulatory compliance posture. Both parts are functionally interchangeable in circuit applications where the specified electrical and mechanical parameters are required.

Frequently Asked Questions (FAQ)

Q: Can ECS-196.6-20-1X replace ECS-196.6-20-1 in existing designs?

A: Yes. The ECS-196.6-20-1X is a parametric equivalent with identical electrical specifications (frequency, tolerance, load capacitance, ESR) and mechanical dimensions (HC-49/U package, through-hole mounting). Direct substitution is supported.

Q: What is the difference between the HC-49U and HC-49UX series designations?

A: The series designation reflects product line evolution. Both parts use the HC-49/U package standard. The HC-49UX designation indicates the newer active product line variant with improved compliance status.

Q: Are there any compliance differences between these parts?

A: Yes. The ECS-196.6-20-1X is ROHS3 Compliant, while the ECS-196.6-20-1 is RoHS non-compliant. Both are REACH Unaffected and classified as EAR99 for export control purposes.

Q: What does "Not For New Designs" mean for the ECS-196.6-20-1?

A: This designation indicates the part has been superseded in the manufacturer's active product portfolio. While existing inventory may be available, ECS Inc. recommends using the active equivalent (ECS-196.6-20-1X) for new applications.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts have identical dimensions: 0.447" L x 0.183" W (11.35mm x 4.65mm) with maximum seated height of 0.530" (13.46mm). They are mechanically interchangeable in through-hole PCB applications.

Q: What is the moisture sensitivity level for these crystals?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.