ECS-196.6-20-4DN Crystal Oscillator Equivalent & Substitute Parts

Part Overview

The ECS-196.6-20-4DN is a 19.6608 MHz through-hole crystal oscillator in HC-49/US package, designed for fundamental mode operation across industrial temperature ranges. This part is currently in active production status with 1077 units in stock. Finding equivalent and substitute parts may be necessary due to supply chain considerations, design revisions, or specific application requirements where alternative frequency stability or temperature operating ranges are acceptable.

Substiute Parts

ECS-196.6-20-4DN

ECS Inc.In Stock: 1175ECS-196.6-20-4DN Datasheet

Current PartRFQ

ECS-196.6-20-4

ECS Inc.In Stock: 2397ECS-196.6-20-4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECS-196.6-20-4DN is determined by the following critical parameters:

• Frequency: Must be 19.6608 MHz (exact match required)
• Frequency Tolerance: Must be ±30ppm or tighter
• Load Capacitance: Must be 20pF (exact match required)
• ESR: Must be 40 Ohms (exact match required)
• Package / Case: Must be HC-49/US (exact match required)
• Mounting Type: Must be Through Hole (exact match required)
• Operating Mode: Must be Fundamental (exact match required)

The substitute part ECS-196.6-20-4 meets all critical electrical and mechanical parameters. However, differences exist in frequency stability specification and operating temperature range, which may impact suitability depending on application requirements.

Parameter Comparison

Engineering Selection Recommendations

ECS-196.6-20-4DN is the recommended choice for new designs. This part maintains active production status and supports the full industrial temperature range of -40°C to 85°C, making it suitable for applications requiring extended thermal operation.

ECS-196.6-20-4 is electrically compatible but carries "Not For New Designs" status. This part is suitable only for legacy system maintenance, repair, or replacement scenarios where the narrower operating temperature range (-10°C to 70°C) is acceptable. The improved frequency stability specification (±50ppm versus ±100ppm) does not offset the design discontinuation status for new applications.

Selection between these parts should be based on product lifecycle requirements and thermal operating environment constraints.

Frequently Asked Questions (FAQ)

Q: Can ECS-196.6-20-4 be used as a direct replacement for ECS-196.6-20-4DN?

A: Electrical substitution is possible if the application operates within the -10°C to 70°C temperature range. The parts share identical frequency, tolerance, load capacitance, ESR, and package specifications. However, the substitute part is marked "Not For New Designs," limiting its use to maintenance and repair applications.

Q: What are the key differences between these parts?

A: The primary differences are operating temperature range (ECS-196.6-20-4DN: -40°C to 85°C; ECS-196.6-20-4: -10°C to 70°C), frequency stability specification (ECS-196.6-20-4DN: ±100ppm; ECS-196.6-20-4: ±50ppm), and product status (Active versus Not For New Designs).

Q: Are the physical packages identical?

A: Yes. Both parts use the HC-49/US package with identical dimensions (0.447" L x 0.183" W / 11.35mm x 4.65mm) and maximum seated height (0.138" / 4.60mm). Through-hole mounting compatibility is identical.

Q: Which part should be selected for industrial applications?

A: ECS-196.6-20-4DN is the appropriate selection for industrial applications requiring extended temperature operation. Its active status and -40°C to 85°C range support demanding thermal environments.

Q: Can these parts be used interchangeably in existing designs?

A: Interchangeability depends on the application's thermal requirements. If the design operates exclusively within -10°C to 70°C, ECS-196.6-20-4 is electrically compatible. For designs requiring the full -40°C to 85°C range, only ECS-196.6-20-4DN is suitable.