GC0800042 Equivalent & Substitute Parts

Part Overview

The GC0800042 is an 8 MHz fundamental mode crystal oscillator manufactured by Diodes Incorporated, packaged in HC-49/US surface mount configuration. This component is classified as Active product status and is ROHS3 compliant. The part operates across a temperature range of -20°C to 70°C with ±30ppm frequency tolerance and ±50ppm frequency stability. Substitute parts are identified when equivalent frequency, tolerance, stability, and package specifications are maintained across alternative manufacturers while accommodating minor variations in load capacitance and ESR within acceptable operating parameters.

Substiute Parts

GC0800042

Diodes IncorporatedIn Stock: 1001GC0800042 Datasheet

Current PartRFQ

GC0800044

Diodes IncorporatedIn Stock: 1480GC0800044 Datasheet

MFR RecommendedRFQ

ABLS-8.000MHZ-B4-T

Abracon LLCIn Stock: 43160ABLS-8.000MHZ-B4-T Datasheet

MFR RecommendedRFQ

E1SEA18-8.000M TR

EcliptekIn Stock: 5994E1SEA18-8.000M TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GC0800042 are qualified based on the following critical parameters that must remain constant or within acceptable tolerance:

• Frequency: 8 MHz (exact match required)
• Frequency Tolerance: ±30ppm (exact match required)
• Frequency Stability: ±50ppm (exact match required)
• Operating Mode: Fundamental (exact match required)
• Operating Temperature Range: -20°C to 70°C (exact match required)
• Package / Case: HC-49/US (exact match required)
• Mounting Type: Surface Mount (exact match required)

Parameters that may vary within acceptable engineering limits:

• Load Capacitance: 16pF to 20pF (circuit design dependent)
• ESR: 40 to 90 Ohms (within acceptable operating range)
• Physical dimensions: Minor variations permitted within HC-49/US specification envelope

All qualified substitutes maintain Active product status and ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts—GC0800044, ABLS-8.000MHZ-B4-T, and E1SEA18-8.000M TR—are qualified alternatives to the GC0800042 based on matching frequency, tolerance, stability, operating temperature range, package type, and mounting configuration. All parts maintain Active product status and ROHS3 compliance.

GC0800044 (Diodes Incorporated) offers the lowest ESR at 40 Ohms with 16pF load capacitance, suitable for applications requiring minimal power consumption. ABLS-8.000MHZ-B4-T (Abracon LLC) provides 18pF load capacitance with 80 Ohms ESR, matching the original part's ESR specification. E1SEA18-8.000M TR (Ecliptek) delivers 18pF load capacitance with 90 Ohms ESR and is available in highest inventory volume.

Selection between substitutes depends on circuit load capacitance requirements and ESR tolerance specifications of the target application. All parts are suitable for direct substitution where load capacitance and ESR parameters fall within circuit design specifications.

Frequently Asked Questions (FAQ)

Q: Can GC0800044 replace GC0800042 directly?

A: GC0800044 is a qualified substitute with identical frequency, tolerance, stability, and operating temperature specifications. The primary difference is load capacitance (16pF versus 20pF) and lower ESR (40 Ohms versus 80 Ohms). Direct substitution is valid if the circuit design accommodates 16pF load capacitance.

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

A: Load capacitance affects the crystal's resonant frequency in the circuit. The GC0800042 specifies 20pF, while substitutes range from 16pF to 20pF. Circuit design must match the crystal's load capacitance specification. Mismatched load capacitance may result in frequency deviation outside tolerance limits.

Q: Are there packaging differences between these substitutes?

A: GC0800042, GC0800044, and E1SEA18-8.000M TR are supplied in Tape & Reel (TR) format. ABLS-8.000MHZ-B4-T is supplied in Cut Tape (CT) & Digi-Reel® format. All parts use identical HC-49/US surface mount package with compatible physical dimensions for PCB mounting.

Q: Which substitute offers the best availability?

A: E1SEA18-8.000M TR (Ecliptek) maintains the highest inventory at 43,118 pieces. GC0800044 (Diodes Incorporated) has 1,430 pieces in stock. E1SEA18-8.000M TR is recommended for applications requiring immediate large-volume procurement.

Q: Do all substitutes meet the same compliance standards?

A: All four parts are ROHS3 compliant and maintain Active product status. GC0800042, GC0800044, and E1SEA18-8.000M TR are REACH Unaffected. ABLS-8.000MHZ-B4-T is REACH Affected. All parts carry EAR99 ECCN classification.