GC2000039 Crystal Equivalent & Substitute Parts

Part Overview

The GC2000039 is a 20 MHz fundamental mode crystal oscillator manufactured by Diodes Incorporated, packaged in Surface Mount HC-49/US configuration. This Active product is designed for applications requiring precise frequency generation with ±30ppm stability across the -20°C to 70°C operating temperature range. The part is ROHS3 compliant with MSL 1 rating, indicating unlimited moisture sensitivity protection. Substitute parts are identified when inventory constraints, lead time requirements, or design flexibility necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

GC2000039

Diodes IncorporatedIn Stock: 1064GC2000039 Datasheet

Current PartRFQ

GC2000032

Diodes IncorporatedIn Stock: 11990GC2000032 Datasheet

MFR RecommendedRFQ

ABLS-20.000MHZ-B-4-Y-T

Abracon LLCIn Stock: 9725ABLS-20.000MHZ-B-4-Y-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the GC2000039 is determined by the following critical parameters:

• Frequency Match: 20 MHz (exact)
• Frequency Stability: ±30ppm (exact)
• Operating Mode: Fundamental (exact)
• Package / Case: HC-49/US (exact)
• Mounting Type: Surface Mount (exact)
• Operating Temperature Range: -20°C to 70°C (exact)

Load Capacitance and ESR values represent allowable variation within the HC-49/US package specification. The GC2000032 (Diodes Incorporated) maintains identical load capacitance tolerance at 18pF with matching ESR of 30 Ohms. The ABLS-20.000MHZ-B-4-Y-T (Abracon LLC) provides functional equivalence with 18pF load capacitance and 40 Ohms ESR, representing acceptable parameter variance for this crystal category.

Parameter Comparison

Engineering Selection Recommendations

GC2000032 (Diodes Incorporated): This substitute maintains identical electrical characteristics to the GC2000039 with matching ESR of 30 Ohms and ROHS3 compliance. The 18pF load capacitance represents a standard variant within the HC-49/US package family. Selection is appropriate when Diodes Incorporated sourcing is preferred or when GC2000039 inventory is unavailable. MSL 1 rating ensures compatibility with standard moisture-controlled storage and handling procedures.

ABLS-20.000MHZ-B-4-Y-T (Abracon LLC): This substitute provides functional equivalence across all critical frequency and temperature parameters. The 40 Ohms ESR represents a 33% increase from the main part specification but remains within acceptable operating margins for 20 MHz fundamental mode crystals in HC-49/US packaging. ROHS3 compliance is maintained. Selection is appropriate when Abracon LLC sourcing is required or when supply chain diversification is necessary. REACH Affected status requires verification against specific end-use regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can GC2000032 be used as a direct replacement for GC2000039?

A: Yes. Both parts share identical frequency (20 MHz), frequency stability (±30ppm), ESR (30 Ohms), operating temperature range (-20°C to 70°C), and HC-49/US package specification. The 18pF load capacitance in GC2000032 versus 16pF in GC2000039 represents a standard parameter variation within this crystal package category.

Q: What is the impact of the 40 Ohms ESR in the ABLS-20.000MHZ-B-4-Y-T substitute?

A: The ABLS-20.000MHZ-B-4-Y-T maintains the same 20 MHz frequency and ±30ppm stability as the main part. The 40 Ohms ESR is 10 Ohms higher than the GC2000039 specification but is within acceptable operating parameters for 20 MHz fundamental mode crystals. Circuit design must accommodate this ESR value during oscillator design phase.

Q: Are all three parts physically interchangeable?

A: All three parts use HC-49/US Surface Mount packaging with identical height specifications (0.165" maximum seated height). Physical footprint compatibility is confirmed. The GC2000039 and GC2000032 share identical dimensions (11.70mm L x 4.80mm W). The ABLS-20.000MHZ-B-4-Y-T has slightly smaller dimensions (11.40mm L x 4.70mm W) but maintains HC-49/US package compliance and Surface Mount compatibility.

Q: What compliance certifications apply to all substitute options?

A: All three parts are ROHS3 compliant and carry EAR99 ECCN classification. GC2000039 and GC2000032 are REACH Unaffected. ABLS-20.000MHZ-B-4-Y-T is REACH Affected and requires regulatory verification for specific applications.

Q: How does load capacitance affect substitution decisions?

A: Load capacitance (16pF for GC2000039, 18pF for both substitutes) must be matched to the oscillator circuit design. The circuit's external load capacitance network is tuned to the specified load capacitance value. Both substitutes operate at 18pF, requiring circuit verification to confirm compatibility with existing oscillator designs.