ECS-61-32-1 Equivalent & Substitute Parts

Part Overview

The ECS-61-32-1 is a 6.144 MHz through-hole crystal oscillator in HC-49/U package, designed for fundamental mode operation with 32pF load capacitance and 40 Ohms equivalent series resistance. This component is currently active in production. Substitute parts may be required due to inventory availability, compliance requirements, or specific application constraints such as load capacitance specifications or operating temperature ranges.

Substiute Parts

ECS-61-32-1

ECS Inc.In Stock: 992ECS-61-32-1 Datasheet

Current PartRFQ

MP061

CTS-Frequency ControlsIn Stock: 1794MP061 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The MP061 from CTS-Frequency Controls qualifies as a direct substitute based on the following critical parameters:

• Identical frequency: 6.144 MHz
• Identical frequency tolerance: ±30ppm
• Identical ESR: 40 Ohms
• Identical package: HC-49/U
• Identical mounting type: Through Hole
• Identical operating mode: Fundamental

The primary difference is load capacitance (20pF vs. 32pF) and operating temperature range (-20°C ~ 70°C vs. -10°C ~ 70°C). These differences must be evaluated against specific circuit requirements before substitution.

Parameter Comparison

Engineering Selection Recommendations

The MP061 is electrically compatible with the ECS-61-32-1 for applications where the circuit load capacitance requirement is 20pF or can be adjusted to accommodate 20pF operation. The MP061 offers extended lower temperature operation (-20°C vs. -10°C minimum) and ROHS3 compliance, making it suitable for applications requiring environmental or regulatory compliance. The ECS-61-32-1 remains the appropriate choice for circuits specifically designed for 32pF load capacitance without modification.

Frequently Asked Questions (FAQ)

Q: Can MP061 be used as a direct replacement for ECS-61-32-1?

A: MP061 is electrically compatible only if your circuit design accommodates 20pF load capacitance. The load capacitance difference requires circuit verification before substitution.

Q: What is the impact of different load capacitance values?

A: Load capacitance affects the crystal's operating frequency and stability. A circuit designed for 32pF load will not operate at the specified frequency with a 20pF crystal without circuit modification.

Q: Does the extended temperature range of MP061 affect compatibility?

A: The MP061 operating range of -20°C ~ 70°C encompasses the ECS-61-32-1 range of -10°C ~ 70°C. MP061 is suitable for applications requiring lower temperature operation.

Q: What is the significance of RoHS compliance difference?

A: The MP061 is ROHS3 compliant while ECS-61-32-1 is non-compliant. For applications subject to RoHS regulations, MP061 is the required choice.

Q: Are both parts in the same physical package?

A: Both use HC-49/U package with through-hole mounting. Physical dimensions differ slightly (ECS-61-32-1: 11.35mm x 4.65mm; MP061: 10.85mm x 3.80mm), but both fit standard HC-49/U footprints.