ECS-98.3-20-4X Equivalent & Substitute Parts

Part Overview

The ECS-98.3-20-4X is a 9.8304 MHz through-hole crystal oscillator in HC-49/US package, designed for fundamental mode operation with 20pF load capacitance and 60 Ohms equivalent series resistance. This Active product is ROHS3 compliant and suitable for new designs. Substitute parts may be required due to inventory availability, specific package dimensions, or design revision requirements while maintaining electrical compatibility.

Substiute Parts

ECS-98.3-20-4X

ECS Inc.In Stock: 1154ECS-98.3-20-4X Datasheet

Current PartRFQ

ECS-98.3-20-4VX

ECS Inc.In Stock: 3072ECS-98.3-20-4VX Datasheet

SimilarRFQ

ECS-98.3-20-4

ECS Inc.In Stock: 1543ECS-98.3-20-4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical electrical parameters: frequency (9.8304 MHz), frequency tolerance (±30ppm), load capacitance (20pF), ESR (60 Ohms), operating mode (Fundamental), and operating temperature range (-10°C ~ 70°C). All substitute parts must maintain the HC-49/US package classification and through-hole mounting type. Physical dimensions and series designation may vary within the same package family without affecting electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

ECS-98.3-20-4VX is the primary substitute for ECS-98.3-20-4X. Both parts are Active products with ROHS3 compliance and identical electrical specifications. The ECS-98.3-20-4VX offers higher inventory availability (2965 Pcs vs. 1071 Pcs) and operates in the HC-49USSX series with reduced seated height (2.10mm vs. 4.60mm), providing design flexibility for space-constrained applications.

ECS-98.3-20-4 is a parametric equivalent with identical electrical characteristics but carries Not For New Designs status and RoHS non-compliance. This part is suitable only for legacy system maintenance or replacement scenarios where regulatory compliance is not required.

Frequently Asked Questions (FAQ)

Q: Can ECS-98.3-20-4VX replace ECS-98.3-20-4X in new designs? A: Yes. Both parts share identical electrical specifications (9.8304 MHz, ±30ppm tolerance, 20pF load capacitance, 60 Ohms ESR) and are ROHS3 compliant Active products. The ECS-98.3-20-4VX operates in the HC-49USSX series with a lower seated height (2.10mm vs. 4.60mm), which may require PCB layout verification.

Q: What is the difference between HC-49USX and HC-49USSX series designations? A: Both designations represent HC-49/US package family variants. The series designation reflects internal ECS classification but does not affect electrical compatibility or package footprint compatibility for through-hole mounting applications.

Q: Is ECS-98.3-20-4 suitable for new product designs? A: No. ECS-98.3-20-4 carries Not For New Designs status and is RoHS non-compliant. Use ECS-98.3-20-4X or ECS-98.3-20-4VX for new designs requiring regulatory compliance.

Q: Are physical dimension differences between substitutes significant? A: ECS-98.3-20-4VX has slightly wider body dimension (5.00mm vs. 4.65mm) and lower seated height (2.10mm vs. 4.60mm). Verify PCB layout and component clearance before substitution in space-constrained designs.

Q: Do all three parts operate within the same temperature range? A: Yes. All three parts operate from -10°C to 70°C with identical frequency stability (±50ppm) and tolerance (±30ppm).