AWCR-20.00MD Equivalent & Substitute Parts

Part Overview

The AWCR-20.00MD is a 20 MHz ceramic resonator with built-in 30 pF capacitor manufactured by Abracon LLC. This through-hole component operates across -25°C to 85°C with ±0.3% frequency stability and 30 Ohms impedance. The product is currently obsolete, making identification of compatible substitutes essential for ongoing system support and component procurement.

Substiute Parts

AWCR-20.00MD

Abracon LLCIn Stock: 1026AWCR-20.00MD Datasheet

Current PartRFQ

CSTLS20M0X53Z-B0

Murata ElectronicsIn Stock: 2338CSTLS20M0X53Z-B0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AWCR-20.00MD is determined by the following critical parameters:

• Frequency Match: 20 MHz (exact match required)
• Frequency Stability: ±0.3% or better
• Mounting Configuration: Through-hole with radial 3-lead package at 2.50mm pitch
• Built-in Capacitor: Functionally compatible capacitance values
• Operating Temperature: Must support the required thermal range or exceed it
• Regulatory Compliance: ROHS3 compliance and REACH status alignment

The CSTLS20M0X53Z-B0 qualifies as a substitute based on matching frequency, mounting type, package pitch, and regulatory compliance. The capacitance value differs (15 pF vs. 30 pF), which represents a functional variation that must be evaluated within the specific circuit application.

Parameter Comparison

Engineering Selection Recommendations

The CSTLS20M0X53Z-B0 from Murata Electronics is the identified substitute for the obsolete AWCR-20.00MD. Both components maintain ROHS3 compliance and REACH-affected status, ensuring regulatory alignment. The substitute offers improved frequency stability (±0.2% vs. ±0.3%) and an extended operating temperature range (-40°C to 125°C vs. -25°C to 85°C), providing enhanced performance margins.

The primary design consideration is the capacitance difference: the substitute provides 15 pF versus the original 30 pF. This parameter directly affects circuit resonance characteristics and must be evaluated against the specific application requirements. The substitute's active product status ensures ongoing availability and manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can the CSTLS20M0X53Z-B0 directly replace the AWCR-20.00MD without circuit modifications?

A: Both components share identical frequency (20 MHz), mounting type (through-hole), and package pitch (2.50mm). However, the capacitance difference (15 pF vs. 30 pF) may require circuit evaluation. The substitute's improved frequency stability and extended temperature range are compatible with the original specifications.

Q: What is the significance of the capacitance difference between these parts?

A: The built-in capacitance value affects the resonator's load capacitance and frequency response characteristics. The 15 pF capacitance in the substitute differs from the original 30 pF. Circuit design validation is necessary to confirm functional equivalence in the specific application.

Q: Are both components physically compatible with the same PCB footprint?

A: Both components use radial 3-lead configuration with 2.50mm pitch. Physical dimensions differ slightly (AWCR: 10.00mm L x 5.00mm W; CSTLS: 5.50mm L x 4.60mm W), but the lead pitch and mounting type remain compatible with standard through-hole PCB layouts designed for this package style.

Q: Why is the AWCR-20.00MD listed as obsolete?

A: The AWCR-20.00MD has reached end-of-life status with the manufacturer. The CSTLS20M0X53Z-B0 represents the active alternative from Murata Electronics for 20 MHz ceramic resonator applications requiring through-hole mounting.

Q: Are there compliance differences between the two parts?

A: Both components are ROHS3 compliant and REACH-affected. Regulatory status is aligned, supporting direct substitution from a compliance perspective.