ECS-40-20-19A-TR Equivalent & Substitute Parts

Part Overview

The ECS-40-20-19A-TR is a 4 MHz fundamental mode crystal oscillator manufactured by ECS Inc., designed for surface mount applications requiring precise frequency stability. This Active product is specified with 20pF load capacitance, 150 Ohms equivalent series resistance, and operates across the -10°C to 70°C temperature range. The component is packaged in a 2-SMD, No Lead configuration with RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the specified tolerances.

Substiute Parts

ECS-40-20-19A-TR

ECS Inc.In Stock: 1654ECS-40-20-19A-TR Datasheet

Current PartRFQ

FC8AQCCMC4.0-T1

Fox ElectronicsIn Stock: 14769FC8AQCCMC4.0-T1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECS-40-20-19A-TR is determined by strict equivalence across the following critical parameters:

Frequency matching at 4 MHz with frequency tolerance of ±30ppm ensures circuit timing compatibility. Load capacitance of 20pF must be maintained to preserve oscillator circuit design parameters. ESR of 150 Ohms is required for proper circuit damping and startup characteristics. The 2-SMD, No Lead package format ensures mechanical and electrical compatibility with existing PCB layouts. Surface mount mounting type is mandatory for assembly process compatibility. RoHS3 compliance and unlimited MSL rating ensure regulatory and environmental consistency.

The FC8AQCCMC4.0-T1 manufactured by Fox Electronics meets all specified electrical parameters and package requirements for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The FC8AQCCMC4.0-T1 is electrically and mechanically equivalent to the ECS-40-20-19A-TR across all critical substitution parameters. Both components maintain Active product status with ROHS3 compliance and identical MSL ratings. The primary distinction is the operating temperature range: the ECS part operates from -10°C to 70°C while the Fox Electronics substitute operates from 0°C to 70°C. Selection between these parts depends on application temperature requirements. For applications requiring operation below 0°C, the ECS-40-20-19A-TR is the appropriate choice. For applications within the 0°C to 70°C range, either part is suitable based on availability and supply chain considerations.

Frequently Asked Questions (FAQ)

Q: Can the FC8AQCCMC4.0-T1 be used as a direct replacement for the ECS-40-20-19A-TR?

A: Yes, for applications operating within the 0°C to 70°C temperature range. Both parts share identical frequency, load capacitance, ESR, package format, and compliance certifications. The ECS part extends operation to -10°C.

Q: What are the critical parameters that determine substitution eligibility?

A: Frequency (4 MHz), frequency tolerance (±30ppm), load capacitance (20pF), ESR (150 Ohms), operating mode (Fundamental), package format (2-SMD, No Lead), and mounting type (Surface Mount) must remain constant for substitution.

Q: Are there physical dimension differences between these parts?

A: Yes. The ECS-40-20-19A-TR measures 0.433" L x 0.197" W x 0.079" H (11.00mm x 5.00mm x 2.00mm). The FC8AQCCMC4.0-T1 measures 0.394" L x 0.177" W x 0.067" H (10.00mm x 4.50mm x 1.70mm). Both fit the 2-SMD, No Lead package specification but have different footprints.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the ECS-40-20-19A-TR and FC8AQCCMC4.0-T1 are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS codes.

Q: What is the difference in frequency stability between these parts?

A: The ECS part specifies ±50ppm frequency stability with ±30ppm tolerance. The Fox Electronics part specifies ±30ppm frequency stability with ±30ppm tolerance. Both meet the ±30ppm tolerance requirement.