F61840010 Equivalent & Substitute Parts

Part Overview

The F61840010 is an 18.432 MHz crystal oscillator manufactured by Diodes Incorporated, part of the SaRonix-eCera™ F6 series. This component operates at a fundamental frequency with 18pF load capacitance and 50 Ohms equivalent series resistance. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations. The F61840010 is RoHS compliant and carries MSL Level 1 rating, indicating minimal moisture sensitivity concerns during storage and handling.

Substiute Parts

F61840010

Diodes IncorporatedIn Stock: 1113F61840010 Datasheet

Current PartRFQ

ECS-184-18-23A-EN-TR

ECS Inc.In Stock: 37993ECS-184-18-23A-EN-TR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the F61840010 is determined by strict alignment of electrical and mechanical parameters. The critical substitution criteria are:

• Frequency Match: 18.432 MHz exact frequency
• Frequency Tolerance: ±30ppm tolerance specification
• Load Capacitance: 18pF load capacitance requirement
• Operating Mode: Fundamental mode operation
• Compliance: RoHS and REACH compliance status

The ECS-184-18-23A-EN-TR qualifies as a direct substitute based on matching all critical electrical parameters. Minor variations in ESR (60 Ohms versus 50 Ohms) and operating temperature range (-40°C ~ 85°C versus -20°C ~ 70°C) represent improvements in performance envelope and do not preclude substitution. The primary distinction is packaging format: the F61840010 uses through-hole configuration while the ECS-184-18-23A-EN-TR employs surface mount technology (2-SMD, No Lead).

Parameter Comparison

Engineering Selection Recommendations

The ECS-184-18-23A-EN-TR is electrically equivalent to the F61840010 across all critical frequency and load parameters. Both components maintain identical frequency tolerance (±30ppm) and load capacitance (18pF) specifications. The ECS component offers an extended operating temperature range (-40°C ~ 85°C) compared to the F61840010 (-20°C ~ 70°C), providing greater thermal margin in applications requiring wider temperature operation.

The primary consideration for component selection is mounting technology. The F61840010 is a through-hole device, while the ECS-184-18-23A-EN-TR is a surface mount component. PCB layout and assembly process capabilities must accommodate the surface mount format. The ECS component's ROHS3 compliance status represents current regulatory alignment, whereas the F61840010's RoHS compliance reflects earlier standards.

Both components carry MSL Level 1 rating and REACH Unaffected status, ensuring equivalent handling and regulatory compliance profiles. The 10 Ohm increase in ESR (60 Ohms versus 50 Ohms) for the ECS component falls within acceptable tolerance for crystal oscillator circuit design and does not constitute a functional limitation.

Frequently Asked Questions (FAQ)

Q: Can the ECS-184-18-23A-EN-TR directly replace the F61840010 in existing designs?

A: Electrical substitution is valid based on matching frequency, tolerance, and load capacitance parameters. However, mounting technology differs: the F61840010 is through-hole while the ECS-184-18-23A-EN-TR is surface mount (2-SMD, No Lead). PCB redesign is required to accommodate the surface mount footprint.

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

A: The F61840010 specifies 50 Ohms ESR while the ECS-184-18-23A-EN-TR specifies 60 Ohms ESR. This 10 Ohm difference is within normal manufacturing variation for crystal oscillators and does not affect circuit functionality in standard applications. Circuit simulation may be warranted for high-precision timing applications.

Q: Are there temperature range implications for substitution?

A: The ECS-184-18-23A-EN-TR operates across -40°C ~ 85°C, exceeding the F61840010's -20°C ~ 70°C range. This represents an operational advantage with no compatibility concerns. Applications operating within the F61840010's original temperature range will function identically with the ECS component.

Q: What compliance differences exist between these components?

A: Both components are RoHS compliant and REACH Unaffected. The ECS-184-18-23A-EN-TR carries ROHS3 certification, representing alignment with current regulatory standards. The F61840010's RoHS compliance reflects earlier certification. Both are suitable for regulated applications.

Q: Is the MSL rating identical for both components?

A: Yes, both the F61840010 and ECS-184-18-23A-EN-TR carry MSL Level 1 (Unlimited) rating. This indicates minimal moisture sensitivity and identical handling requirements during storage, transportation, and assembly processes.