ECS-35-17-4DN Equivalent & Substitute Parts

Part Overview

The ECS-35-17-4DN is a 4.679545 MHz through-hole crystal oscillator in HC-49/US package, designed for fundamental mode operation with 17pF load capacitance and 200 Ohms equivalent series resistance. This part is currently Active in product status with 1100 pieces in stock. Alternative models become necessary when addressing specific application requirements such as RoHS compliance, extended temperature range support, or design phase considerations.

Substiute Parts

ECS-35-17-4DN

ECS Inc.In Stock: 1168ECS-35-17-4DN Datasheet

Current PartRFQ

ECS-35-17-4

ECS Inc.In Stock: 2049ECS-35-17-4 Datasheet

SimilarRFQ

ECS-35-17-4XDN

ECS Inc.In Stock: 5216ECS-35-17-4XDN Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECS-35-17-4DN is determined by strict alignment of the following critical parameters:

• Frequency: 4.679545 MHz (exact match required)
• Frequency Tolerance: ±30ppm (exact match required)
• Load Capacitance: 17pF (exact match required)
• ESR: 200 Ohms (exact match required)
• Operating Mode: Fundamental (exact match required)
• Package / Case: HC-49/US (exact match required)
• Mounting Type: Through Hole (exact match required)
• Physical Dimensions: 0.447" L x 0.183" W, Height 0.138" max (exact match required)

Frequency stability, operating temperature range, product status, and compliance certifications may vary between the main part and substitutes without affecting electrical interchangeability in the circuit.

Parameter Comparison

Engineering Selection Recommendations

ECS-35-17-4XDN is the primary equivalent substitute for new designs. It maintains identical electrical and mechanical specifications to the ECS-35-17-4DN while offering ROHS3 compliance and Active product status. This part is suitable for applications requiring regulatory compliance with environmental directives.

ECS-35-17-4 is electrically compatible but carries a "Not For New Designs" status and operates within a narrower temperature range (-10°C ~ 70°C versus -40°C ~ 85°C). This part is suitable only for legacy system maintenance or replacement scenarios where the restricted operating temperature does not conflict with application requirements.

Frequently Asked Questions (FAQ)

Q: Can ECS-35-17-4XDN replace ECS-35-17-4DN in existing designs?

A: Yes. Both parts share identical frequency, load capacitance, ESR, package, and mounting specifications. The ECS-35-17-4XDN offers improved compliance status (ROHS3) and identical operating temperature range.

Q: What is the difference between ECS-35-17-4DN and ECS-35-17-4?

A: The primary differences are product status (Active versus Not For New Designs), operating temperature range (-40°C ~ 85°C versus -10°C ~ 70°C), and frequency stability (±100ppm versus ±50ppm). Electrical and mechanical parameters remain identical.

Q: Are all three parts mechanically interchangeable?

A: Yes. All three parts use the HC-49/US package with identical physical dimensions (0.447" L x 0.183" W, 0.138" max height) and through-hole mounting configuration.

Q: Which part should be selected for new product designs?

A: ECS-35-17-4XDN is the recommended choice for new designs due to Active product status and ROHS3 compliance certification.

Q: Can ECS-35-17-4 be used in applications requiring -40°C operation?

A: No. ECS-35-17-4 operates only within -10°C ~ 70°C range and is not suitable for applications requiring extended low-temperature operation.