GC0800044 Equivalent & Substitute Parts

Part Overview

The GC0800044 is an 8 MHz fundamental mode crystal oscillator manufactured by Diodes Incorporated, part of the SaRonix-eCera™ GC series. This surface mount crystal is specified for 16pF load capacitance with 40 Ohms equivalent series resistance (ESR), housed in an HC-49/US package. The device is actively produced and ROHS3 compliant, making it suitable for applications requiring stable frequency reference in consumer and industrial electronics. Substitute parts may be required due to inventory constraints, supply chain considerations, or specific application requirements within the allowed electrical and mechanical parameter ranges.

Substiute Parts

GC0800044

Diodes IncorporatedIn Stock: 1480GC0800044 Datasheet

Current PartRFQ

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

Substitution of the GC0800044 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

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

Allowable Variation Parameters:

• Load Capacitance: 16pF to 18pF (within acceptable circuit design tolerance)
• ESR: 40 Ohms to 90 Ohms (within acceptable circuit performance tolerance)
• Packaging Format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® (logistics variation, not functional)

The substitute parts ABLS-8.000MHZ-B4-T and E1SEA18-8.000M TR meet all critical parameters and fall within allowable variation ranges for load capacitance and ESR.

Parameter Comparison

Engineering Selection Recommendations

All three parts—GC0800044, ABLS-8.000MHZ-B4-T, and E1SEA18-8.000M TR—are actively produced and ROHS3 compliant. Selection between these parts should be based on:

Inventory and Supply Availability: GC0800044 has 1430 units in stock, ABLS-8.000MHZ-B4-T has 43118 units, and E1SEA18-8.000M TR has 5969 units available.

Load Capacitance Consideration: The GC0800044 specifies 16pF load capacitance, while both substitute parts specify 18pF. Circuit design must accommodate this 2pF difference. The higher load capacitance of substitute parts may require adjustment of external load capacitors in the oscillator circuit.

ESR Consideration: The GC0800044 has 40 Ohms ESR, while ABLS-8.000MHZ-B4-T has 80 Ohms and E1SEA18-8.000M TR has 90 Ohms. Higher ESR values may affect circuit startup characteristics and power consumption. Circuit validation is necessary when substituting with higher ESR parts.

Packaging Format: GC0800044 and E1SEA18-8.000M TR are supplied in Tape & Reel format, while ABLS-8.000MHZ-B4-T is supplied in Cut Tape & Digi-Reel format. Selection depends on assembly process requirements.

Physical Dimensions: All parts fit within HC-49/US package specifications. E1SEA18-8.000M TR has a lower seated height (3.20mm vs 4.20mm), which may be advantageous for space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can ABLS-8.000MHZ-B4-T or E1SEA18-8.000M TR be used as direct replacements for GC0800044?

A: Both parts meet the critical electrical parameters (8 MHz frequency, ±30ppm tolerance, fundamental mode, HC-49/US package, -20°C to 70°C operating range). However, the 2pF difference in load capacitance (18pF vs 16pF) and higher ESR values require circuit evaluation. The oscillator circuit's external load capacitors may need adjustment to maintain frequency accuracy.

Q: What is the significance of the load capacitance difference?

A: Load capacitance determines the external capacitive loading the crystal expects for proper oscillation. A 2pF difference between 16pF and 18pF can affect the oscillation frequency and startup behavior. Circuit designers must account for this difference when selecting substitute parts.

Q: Does the ESR difference affect circuit performance?

A: ESR influences crystal startup time, power consumption, and frequency stability. The GC0800044 at 40 Ohms has lower ESR than both substitutes (80 and 90 Ohms). Higher ESR may result in slower startup and increased power draw. Circuit validation is necessary to confirm acceptable performance with substitute parts.

Q: Are all three parts RoHS compliant?

A: Yes, all three parts are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing.

Q: What packaging formats are available?

A: 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. Selection depends on assembly equipment compatibility and production volume requirements.

Q: Are there physical dimension constraints I should consider?

A: All parts conform to HC-49/US package specifications. E1SEA18-8.000M TR has a lower maximum seated height (3.20mm) compared to GC0800044 and ABLS-8.000MHZ-B4-T (both 4.20mm). This may provide advantages in height-constrained PCB designs. Horizontal dimensions vary slightly but remain within HC-49/US tolerances.