AS-6.000-20-H30 Equivalent & Substitute Parts

Part Overview

The AS-6.000-20-H30 is a 6 MHz through-hole crystal oscillator manufactured by Raltron Electronics. This fundamental mode crystal operates at 6.0000 MHz with a frequency tolerance of ±30ppm and load capacitance of 20pF. The component is housed in an HC-49/US package and is actively produced. Substitute parts are identified based on matching frequency, operating mode, package type, and electrical specifications to ensure functional equivalence in circuit applications.

Substiute Parts

AS-6.000-20-H30

Raltron ElectronicsIn Stock: 1150AS-6.000-20-H30 Datasheet

Current PartRFQ

AS-6.000-18

Raltron ElectronicsIn Stock: 4235AS-6.000-18 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AS-6.000-20-H30 are identified based on the following critical parameters that determine functional equivalence:

Matching Parameters:

• Frequency: 6 MHz (exact match required)
• Operating Mode: Fundamental (exact match required)
• Package / Case: HC-49/US (exact match required)
• Mounting Type: Through Hole (exact match required)
• ESR: 80 Ohms (exact match required)
• Frequency Tolerance: ±30ppm (exact match required)
• Operating Temperature Range: -20°C ~ 70°C (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

Variable Parameter:

• Load Capacitance: The AS-6.000-20-H30 operates with 20pF load capacitance. Substitute parts may have different load capacitance values while maintaining all other electrical and mechanical specifications.

The AS-6.000-18 is identified as a substitute part because it maintains all critical matching parameters while operating at a different load capacitance of 18pF.

Parameter Comparison

Engineering Selection Recommendations

Both the AS-6.000-20-H30 and AS-6.000-18 are active products manufactured by Raltron Electronics with identical RoHS3 compliance and REACH unaffected status. Both components meet the same regulatory and environmental standards.

The primary difference between these parts is load capacitance: 20pF for the AS-6.000-20-H30 and 18pF for the AS-6.000-18. Selection between these parts depends on the specific load capacitance requirement of the circuit design. The circuit oscillator configuration determines the required load capacitance value. Both parts are physically identical in package dimensions and mounting characteristics, allowing direct mechanical substitution in through-hole PCB applications.

Frequently Asked Questions (FAQ)

Q: Can the AS-6.000-18 be used as a direct replacement for the AS-6.000-20-H30?

A: The AS-6.000-18 is mechanically and electrically compatible with the AS-6.000-20-H30 in terms of frequency, operating mode, package type, and mounting. However, the load capacitance differs (18pF versus 20pF). Substitution is valid only if the circuit design accommodates 18pF load capacitance. The oscillator circuit must be designed or adjusted for the specific load capacitance value.

Q: What is the significance of load capacitance in crystal selection?

A: Load capacitance is the capacitive load that the crystal oscillator circuit presents to the crystal element. The crystal is specified to operate at a particular load capacitance value. Using a crystal with a different load capacitance than the circuit design specifies may result in frequency deviation or circuit instability.

Q: Are both parts available in the same package?

A: Yes. Both the AS-6.000-20-H30 and AS-6.000-18 are housed in HC-49/US packages with identical physical dimensions (0.447" L x 0.197" W, 11.35mm x 5.00mm) and maximum seated height (0.138", 3.50mm). Both are through-hole mounted components suitable for PCB insertion.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the AS-6.000-20-H30 and AS-6.000-18 are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (Unlimited moisture sensitivity level). Both parts meet identical regulatory and environmental requirements.

Q: What is the operating temperature range for these crystals?

A: Both the AS-6.000-20-H30 and AS-6.000-18 operate across the temperature range of -20°C to 70°C with a frequency stability of ±50ppm and frequency tolerance of ±30ppm.