HC-49/U-S6000000ABIT Equivalent & Substitute Parts

Part Overview

The HC-49/U-S6000000ABIT is a 6 MHz through-hole crystal oscillator manufactured by Citizen Finedevice Co Ltd. This fundamental mode crystal features a 16pF load capacitance and 100 Ohms equivalent series resistance, housed in the HC-49/US package. The part is active in production status and fully compliant with RoHS3 and REACH regulations. Substitute parts may be required due to inventory constraints, supply chain disruptions, or application-specific load capacitance requirements within the allowable parameter range.

Substiute Parts

HC-49/U-S6000000ABIT

Citizen Finedevice Co LtdIn Stock: 842HC-49/U-S6000000ABIT Datasheet

Current PartRFQ

HC-49/U-S6000000ABJB

Citizen Finedevice Co LtdIn Stock: 2685HC-49/U-S6000000ABJB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The HC-49/U-S6000000ABJB qualifies as a direct substitute based on the following critical parameters:

• Identical frequency: 6 MHz
• Identical frequency tolerance: ±30ppm
• Identical ESR: 100 Ohms
• Identical operating mode: Fundamental
• Identical operating temperature range: -10°C ~ 60°C
• Identical mounting type: Through Hole
• Identical package: HC-49/US
• Identical physical dimensions: 0.453" L x 0.183" W (11.50mm x 4.66mm)
• Identical height: 0.138" (4.60mm)
• Identical RoHS and REACH compliance status

The load capacitance differs at 18pF versus 16pF. This variance falls within acceptable substitution parameters for HC-49/US series crystals, as both values support standard oscillator circuit designs with appropriate load capacitance matching in the application circuit.

Parameter Comparison

Engineering Selection Recommendations

Both the HC-49/U-S6000000ABIT and HC-49/U-S6000000ABJB are active production parts from Citizen Finedevice Co Ltd with identical RoHS3 and REACH compliance certifications. Selection between these parts should be based on load capacitance requirements specific to the oscillator circuit design. The 16pF load capacitance of the primary part and the 18pF load capacitance of the substitute are both standard values for HC-49/US series applications. Circuit design parameters must accommodate the selected load capacitance value to ensure frequency stability and proper oscillation characteristics.

Frequently Asked Questions (FAQ)

Q: Can HC-49/U-S6000000ABJB replace HC-49/U-S6000000ABIT in my application?

A: Yes, provided your oscillator circuit is designed to accommodate an 18pF load capacitance. Both parts share identical frequency, tolerance, ESR, operating temperature range, and physical package specifications. The load capacitance difference requires verification that your circuit design supports this parameter.

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

A: Load capacitance is the capacitive load that the crystal oscillator circuit presents to the crystal element. The HC-49/U-S6000000ABIT is specified for 16pF, while the HC-49/U-S6000000ABJB is specified for 18pF. Your oscillator circuit must be designed to match the load capacitance of the selected crystal to achieve the specified frequency tolerance and stability.

Q: Are both parts physically interchangeable?

A: Yes. Both parts use the HC-49/US package with identical physical dimensions (0.453" L x 0.183" W, 11.50mm x 4.66mm) and height (0.138", 4.60mm). They are mechanically interchangeable on through-hole PCB layouts.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the HC-49/U-S6000000ABIT and HC-49/U-S6000000ABJB are RoHS3 compliant and REACH unaffected, with identical moisture sensitivity level (MSL 1 - Unlimited).

Q: What is the frequency stability specification for these crystals?

A: Both parts specify ±50ppm frequency stability with ±30ppm frequency tolerance. These parameters define the acceptable frequency deviation under specified operating conditions.