ECS-SR1-4.19-B-TR Ceramic Resonator Equivalent & Substitute Parts

Part Overview

The ECS-SR1-4.19-B-TR is a 4.19 MHz ceramic resonator with built-in 30 pF capacitor designed for surface mount applications. This component operates across the -20°C to 80°C temperature range with ±0.3% frequency stability. The part is classified as Last Time Buy, indicating discontinued production status. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this resonator.

Substiute Parts

ECS-SR1-4.19-B-TR

ECS Inc.In Stock: 5141ECS-SR1-4.19-B-TR Datasheet

Current PartRFQ

ECS-CTP-4.19-30-TR

ECS Inc.In Stock: 4664ECS-CTP-4.19-30-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The ECS-CTP-4.19-30-TR qualifies as a direct substitute based on the following critical parameters:

• Identical frequency: 4.19 MHz
• Identical frequency stability: ±0.3%
• Identical frequency tolerance: ±0.5%
• Identical capacitance: 30 pF
• Identical type: Ceramic resonator with built-in capacitor
• Identical mounting type: Surface mount
• Identical RoHS and REACH compliance status
• Identical MSL rating: 1 (Unlimited)

The substitute part operates across an extended temperature range (-40°C to 85°C) compared to the original part (-20°C to 80°C), providing broader environmental compatibility. Both parts are manufactured by ECS Inc. and maintain electrical equivalence for the specified frequency and capacitance requirements.

Parameter Comparison

Engineering Selection Recommendations

The ECS-CTP-4.19-30-TR is the direct substitute for the ECS-SR1-4.19-B-TR. Both parts maintain identical electrical specifications for frequency, stability, tolerance, and capacitance. The substitute part is currently in Active production status, ensuring ongoing availability compared to the Last Time Buy status of the original part.

Both components satisfy ROHS3 compliance and REACH unaffected requirements. The substitute part's extended operating temperature range (-40°C to 85°C versus -20°C to 80°C) provides additional environmental margin for applications operating at temperature extremes.

Package configuration differences exist between the parts (3-SMD Non-Standard versus 3-SMD No Lead), requiring verification of PCB footprint compatibility during design transition. Physical dimensions differ slightly, with the substitute part measuring 6.00mm x 3.00mm x 2.00mm compared to the original 7.50mm x 3.30mm x 2.20mm.

Frequently Asked Questions (FAQ)

Q: Can ECS-CTP-4.19-30-TR be used as a direct replacement for ECS-SR1-4.19-B-TR?

A: Yes. Both parts share identical frequency (4.19 MHz), frequency stability (±0.3%), frequency tolerance (±0.5%), and capacitance (30 pF) specifications. Electrical performance is equivalent for oscillator circuit applications.

Q: What are the key differences between these parts?

A: The substitute part operates across a wider temperature range (-40°C to 85°C versus -20°C to 80°C), has a smaller physical footprint (6.00mm x 3.00mm versus 7.50mm x 3.30mm), and features different package designations (3-SMD No Lead versus 3-SMD Non-Standard). The substitute is in Active production status.

Q: Are there PCB footprint compatibility concerns?

A: Yes. The package case designations differ, and physical dimensions vary. PCB footprint verification is required before design implementation to ensure proper component placement and soldering.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings of 1 (Unlimited).

Q: Why is the original part listed as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued production. The ECS-CTP-4.19-30-TR serves as the active production alternative with equivalent electrical specifications.