ECS-60-32-4DN Crystal Equivalent & Substitute Parts

Part Overview

The ECS-60-32-4DN is a 6 MHz through-hole crystal oscillator in HC-49/US package with 32pF load capacitance and 80 Ohms ESR. This part is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line.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 ongoing support of legacy systems, maintenance applications, and existing designs that cannot be migrated to newer crystal families.

Substiute Parts

ECS-60-32-4DN

ECS Inc.In Stock: 1405ECS-60-32-4DN Datasheet

Current PartRFQ

ECS-60-32-4XDN

ECS Inc.In Stock: 1189ECS-60-32-4XDN Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECS-60-32-4DN is determined by the following critical parameters:

• Frequency: Must be 6 MHz (exact match required)
• Frequency Tolerance: Must be ±30ppm or tighter
• Load Capacitance: Must be 32pF (exact match required)
• Operating Mode: Must be Fundamental
• Operating Temperature Range: Must cover -40°C ~ 85°C minimum
• Mounting Type: Must be Through Hole
• Package / Case: Must be HC-49/US

The ESR (Equivalent Series Resistance) may vary within acceptable limits for crystal oscillators, provided the circuit design accommodates the variance. The ECS-60-32-4XDN meets all substitution criteria with a variance in ESR from 80 Ohms to 100 Ohms, which remains within typical design tolerances for this frequency class.

Parameter Comparison

Engineering Selection Recommendations

The ECS-60-32-4XDN is the direct substitute for the ECS-60-32-4DN. Both parts share identical electrical specifications for frequency, tolerance, load capacitance, and operating temperature range. The ESR difference of 20 Ohms (80 Ohms vs. 100 Ohms) is within acceptable variance for fundamental mode crystals in this frequency class and does not affect functional compatibility in standard oscillator circuits.

The ECS-60-32-4XDN offers the additional advantage of Active product status and ROHS3 compliance, making it suitable for new designs and applications with regulatory requirements. The ECS-60-32-4DN remains available for legacy system support where RoHS non-compliance is not a constraint.

Frequently Asked Questions (FAQ)

Q: Can the ECS-60-32-4XDN directly replace the ECS-60-32-4DN in existing circuits?

A: Yes. Both crystals operate at 6 MHz with ±30ppm tolerance, 32pF load capacitance, and identical physical dimensions in HC-49/US package. The 20 Ohm ESR difference is within normal design margins for this frequency class.

Q: What is the significance of the ESR difference between these parts?

A: ESR (Equivalent Series Resistance) affects crystal startup time and power consumption in oscillator circuits. The ECS-60-32-4XDN at 100 Ohms versus the ECS-60-32-4DN at 80 Ohms represents a 25% increase. For most applications, this variance is absorbed by standard oscillator circuit design and does not impact frequency stability or temperature performance.

Q: Why is the ECS-60-32-4DN marked as "Not For New Designs"?

A: This designation indicates the part has been superseded in the manufacturer's active product line. The ECS-60-32-4XDN is the current production equivalent and should be used for new designs and ongoing procurement.

Q: Are there any compliance differences between these parts?

A: Yes. The ECS-60-32-4DN is RoHS non-compliant, while the ECS-60-32-4XDN is ROHS3 compliant. Both are REACH Unaffected and classified as EAR99 for export control purposes.

Q: Do these crystals have identical physical footprints?

A: Yes. Both parts are housed in HC-49/US package with identical dimensions: 0.447" L x 0.183" W (11.35mm x 4.65mm) and maximum seated height of 0.138" (4.60mm). They are mechanically interchangeable on through-hole PCB layouts.