ECS-98.3-20-4 Equivalent & Substitute Parts

Part Overview

The ECS-98.3-20-4 is a 9.8304 MHz through-hole crystal oscillator in HC-49/US package with 20pF load capacitance and 60 Ohms equivalent series resistance. This component is classified as Not For New Designs, making identification of active equivalent alternatives essential for ongoing production and maintenance applications. The part operates across -10°C to 70°C with ±30ppm frequency tolerance and ±50ppm frequency stability.

Substiute Parts

ECS-98.3-20-4

ECS Inc.In Stock: 1543ECS-98.3-20-4 Datasheet

Current PartRFQ

ECS-98.3-20-4VX

ECS Inc.In Stock: 3072ECS-98.3-20-4VX Datasheet

SimilarRFQ

ECS-98.3-20-4X

ECS Inc.In Stock: 1154ECS-98.3-20-4X Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECS-98.3-20-4 is determined by strict equivalence across the following critical parameters:

• Frequency: 9.8304 MHz (exact match required)
• Frequency Tolerance: ±30ppm (exact match required)
• Frequency Stability: ±50ppm (exact match required)
• Load Capacitance: 20pF (exact match required)
• ESR: 60 Ohms (exact match required)
• Operating Mode: Fundamental (exact match required)
• Operating Temperature Range: -10°C to 70°C (exact match required)
• Package / Case: HC-49/US (exact match required)
• Mounting Type: Through Hole (exact match required)

Both identified substitutes—ECS-98.3-20-4X and ECS-98.3-20-4VX—meet all critical electrical and mechanical parameters. Differences in physical dimensions (width and height) and product status distinguish their application contexts.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring the ECS-98.3-20-4, both ECS-98.3-20-4X and ECS-98.3-20-4VX are electrically and mechanically equivalent substitutes based on all provided specifications.

ECS-98.3-20-4X is recommended for designs requiring dimensional consistency with the original part. This substitute maintains identical length, width, and height dimensions while offering Active product status and ROHS3 compliance.

ECS-98.3-20-4VX is recommended for space-constrained applications. This substitute provides a reduced seated height of 0.083" (2.10mm) compared to 0.138" (4.60mm) on the original part, while maintaining all electrical parameters. It also offers Active product status and ROHS3 compliance.

Selection between ECS-98.3-20-4X and ECS-98.3-20-4VX depends on physical space availability in the target application and inventory requirements.

Frequently Asked Questions (FAQ)

Q: Can ECS-98.3-20-4X and ECS-98.3-20-4VX be used interchangeably with ECS-98.3-20-4?

A: Both substitutes are electrically equivalent. Physical interchangeability depends on PCB layout constraints. ECS-98.3-20-4X maintains identical dimensions to the original part. ECS-98.3-20-4VX has a lower profile (0.083" vs 0.138" seated height) and slightly wider body (0.197" vs 0.183" width).

Q: What is the significance of the "Not For New Designs" status on ECS-98.3-20-4?

A: This designation indicates the part is obsolete for new product development. Both substitute parts carry Active status, making them suitable for new designs and ongoing production.

Q: Are there compliance differences between the three parts?

A: ECS-98.3-20-4 is RoHS non-compliant. Both ECS-98.3-20-4X and ECS-98.3-20-4VX are ROHS3 compliant. All three parts are REACH Unaffected and classified as EAR99.

Q: How do the physical dimensions affect component selection?

A: ECS-98.3-20-4X matches the original footprint exactly. ECS-98.3-20-4VX offers a lower profile suitable for compact designs but has a slightly wider body. Verify PCB layout compatibility before selection.

Q: Which substitute has better inventory availability?

A: ECS-98.3-20-4VX has the highest inventory at 2965 pieces. ECS-98.3-20-4X has 1071 pieces. The original ECS-98.3-20-4 has 1527 pieces in stock.