ABLS-30.000MHZ-B4-F-T Equivalent & Substitute Parts

Part Overview

The ABLS-30.000MHZ-B4-F-T is a 30 MHz fundamental mode crystal oscillator manufactured by Abracon LLC in the ABLS series. This surface mount device operates at 30 MHz with ±30ppm frequency tolerance and 18pF load capacitance, packaged in HC-49/US form factor. The part is active in production status and ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the ABLS and ABLS2 product series.

Key Parameters

Parameter	Value
Frequency	30 MHz
Frequency Tolerance	±30ppm
Load Capacitance	18pF
ESR (Equivalent Series Resistance)	40 Ohms
Operating Mode	Fundamental
Package / Case	HC-49/US
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the ABLS-30.000MHZ-B4-F-T are qualified based on the following criteria:

Identical frequency: 30 MHz
Identical frequency tolerance: ±30ppm
Identical load capacitance: 18pF
Identical ESR: 40 Ohms
Identical operating mode: Fundamental
Identical package: HC-49/US
Identical mounting type: Surface Mount
Identical RoHS compliance: ROHS3 Compliant

The ABLS-30.000MHZ-K4F-T, ABLS-30.000MHZ-L4QF-T, and ABLS2-30.000MHZ-D4YF-T meet these core electrical and mechanical requirements. Variations in operating temperature range and frequency stability do not preclude substitution when the application requirements fall within the specified operating conditions of the substitute part.

Parameter Comparison

Parameter	ABLS-30.000MHZ-B4-F-T	ABLS-30.000MHZ-K4F-T	ABLS-30.000MHZ-L4QF-T	ABLS2-30.000MHZ-D4YF-T
Manufacturer	Abracon LLC	Abracon LLC	Abracon LLC	Abracon LLC
Series	ABLS	ABLS	ABLS	ABLS2
Frequency	30 MHz	30 MHz	30 MHz	30 MHz
Frequency Tolerance	±30ppm	±30ppm	±30ppm	±30ppm
Frequency Stability	±50ppm	±50ppm	±100ppm	±30ppm
Load Capacitance	18pF	18pF	18pF	18pF
ESR	40 Ohms	40 Ohms	40 Ohms	40 Ohms
Operating Temperature	-20°C ~ 70°C	-40°C ~ 125°C	-55°C ~ 125°C	-40°C ~ 85°C
Package / Case	HC-49/US	HC-49/US	HC-49/US	HC-49/US
Size / Dimension	0.449" L x 0.185" W (11.40mm x 4.70mm)	0.449" L x 0.185" W (11.40mm x 4.70mm)	0.449" L x 0.185" W (11.40mm x 4.70mm)	0.449" L x 0.185" W (11.40mm x 4.70mm)
Height - Seated (Max)	0.165" (4.20mm)	0.165" (4.20mm)	0.165" (4.20mm)	0.130" (3.30mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts maintain active production status and ROHS3 compliance. Selection between the ABLS-30.000MHZ-B4-F-T and its substitutes depends on application-specific operating temperature requirements:

The ABLS-30.000MHZ-K4F-T extends the operating temperature range to -40°C ~ 125°C while maintaining identical electrical specifications, providing broader environmental coverage within the ABLS series.

The ABLS-30.000MHZ-L4QF-T offers the widest operating temperature range of -55°C ~ 125°C with ±100ppm frequency stability, suitable for extended temperature applications.

The ABLS2-30.000MHZ-D4YF-T operates within -40°C ~ 85°C with ±30ppm frequency stability and reduced seated height of 0.130" (3.30mm), accommodating space-constrained designs.

Frequently Asked Questions (FAQ)

Q: Can ABLS-30.000MHZ-K4F-T replace ABLS-30.000MHZ-B4-F-T in all applications?

A: Yes, when the application operates within the ABLS-30.000MHZ-K4F-T operating temperature range of -40°C ~ 125°C. The electrical specifications are identical, and both parts use the same HC-49/US package with identical dimensions and mounting characteristics.

Q: What is the difference between ABLS and ABLS2 series crystals?

A: The ABLS2-30.000MHZ-D4YF-T differs in seated height (0.130" versus 0.165") and frequency stability (±30ppm versus ±50ppm). All other electrical and mechanical parameters remain equivalent. The reduced height may be critical for PCB assembly clearance constraints.

Q: Are there mechanical compatibility concerns when substituting these parts?

A: All substitute parts share the HC-49/US package with identical length and width dimensions (0.449" L x 0.185" W). The ABLS2-30.000MHZ-D4YF-T has a lower seated height of 0.130" compared to 0.165" for ABLS series parts. Verify PCB footprint and clearance requirements before substitution.

Q: Which substitute part has the best frequency stability?

A: The ABLS2-30.000MHZ-D4YF-T provides ±30ppm frequency stability, matching the original part's tolerance specification. The ABLS-30.000MHZ-L4QF-T has ±100ppm stability but covers the widest temperature range.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All parts are ROHS3 compliant, REACH affected, and carry the same ECCN (EAR99) and HTSUS (8541.60.0060) classifications.

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