FCR8.0MC5 Equivalent & Substitute Parts

Part Overview

The FCR8.0MC5 is an 8 MHz ceramic resonator with built-in 20 pF capacitor manufactured by TDK Corporation. This through-hole component operates across -40°C to 85°C with ±0.3% frequency stability and 20 Ohms impedance. The product is currently obsolete, making equivalent substitutes necessary for ongoing system support and new designs requiring this frequency specification.

Key Parameters

Parameter	Value
Frequency	8 MHz
Frequency Stability	±0.3%
Frequency Tolerance	±0.5%
Built-in Capacitance	20 pF
Impedance	20 Ohms
Operating Temperature Range	-40°C to 85°C
Mounting Type	Through Hole
Package Configuration	Radial - 3 Lead, 2.50mm Pitch
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the FCR8.0MC5 is determined by the following critical parameters:

Frequency Match: 8 MHz (exact match required)
Mounting Type: Through Hole (mechanical compatibility)
Package Configuration: Radial - 3 Lead, 2.50mm Pitch (PCB footprint compatibility)
Frequency Stability: ±0.3% or better (performance requirement)
Frequency Tolerance: ±0.5% (specification alignment)
Built-in Capacitor: Present (functional requirement)
Operating Temperature Range: Must encompass or exceed -40°C to 85°C

The identified substitutes meet these core criteria while offering active product status and improved compliance certifications.

Parameter Comparison

Parameter	FCR8.0MC5 (Main)	CSTLS8M00G53-B0	CSTLS8M00G53Z-B0
Manufacturer	TDK Corporation	Murata Electronics	Murata Electronics
Frequency	8 MHz	8 MHz	8 MHz
Frequency Stability	±0.3%	±0.2%	±0.2%
Frequency Tolerance	±0.5%	±0.5%	±0.5%
Built-in Capacitance	20 pF	15 pF	15 pF
Impedance	20 Ohms	25 Ohms	25 Ohms
Operating Temperature Range	-40°C to 85°C	-20°C to 80°C	-40°C to 125°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Radial - 3 Lead, 2.50mm Pitch	Radial - 3 Lead, 2.50mm Pitch	Radial - 3 Lead, 2.50mm Pitch
Size / Dimension	0.374" L x 0.197" W (9.50mm x 5.00mm)	0.315" L x 0.118" W (8.00mm x 3.00mm)	0.315" L x 0.118" W (8.00mm x 3.00mm)
Height	0.256" (6.50mm)	0.236" (6.00mm)	0.236" (6.00mm)
Product Status	Obsolete	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Affected	REACH Affected

Engineering Selection Recommendations

CSTLS8M00G53Z-B0 is the primary substitute for the FCR8.0MC5. This part maintains the required 8 MHz frequency and through-hole radial configuration while offering superior frequency stability (±0.2% vs ±0.3%), extended operating temperature range (-40°C to 125°C), and active product status. ROHS3 compliance and REACH compliance support modern regulatory requirements. The operating temperature range encompasses the original specification.

CSTLS8M00G53-B0 serves as an alternative substitute with identical frequency and stability characteristics but operates within -20°C to 80°C. This part is suitable for applications where the upper temperature limit of 80°C is sufficient and does not require the extended lower temperature performance of the Z-variant.

Both substitutes are manufactured by Murata Electronics with established supply availability and active product status, ensuring long-term component accessibility.

Frequently Asked Questions (FAQ)

Q: Can CSTLS8M00G53-B0 and CSTLS8M00G53Z-B0 be used interchangeably with FCR8.0MC5?

A: Both parts share the same 8 MHz frequency, ±0.5% frequency tolerance, through-hole mounting, and 2.50mm pitch radial package. The primary differences are operating temperature range and built-in capacitance (15 pF vs 20 pF). Selection depends on application temperature requirements and circuit design specifications for the built-in capacitor value.

Q: What is the impact of the 15 pF capacitance in substitutes versus the 20 pF in FCR8.0MC5?

A: The built-in capacitance affects circuit resonance characteristics. Applications designed for 20 pF must account for the 5 pF difference when using 15 pF substitutes. Circuit validation is necessary to confirm frequency performance within tolerance.

Q: Why is CSTLS8M00G53Z-B0 recommended over CSTLS8M00G53-B0?

A: CSTLS8M00G53Z-B0 extends the operating temperature range to -40°C to 125°C, fully encompassing the original FCR8.0MC5 specification of -40°C to 85°C. This provides broader application compatibility and future design flexibility.

Q: Are the physical dimensions compatible with existing PCB layouts?

A: Both substitutes use identical 2.50mm pitch radial configuration and fit the same through-hole footprint. However, substitute dimensions are smaller (8.00mm x 3.00mm vs 9.50mm x 5.00mm), allowing direct board-level replacement without layout modification.

Q: What compliance certifications apply to these substitutes?

A: Both CSTLS8M00G53-B0 and CSTLS8M00G53Z-B0 are ROHS3 compliant and REACH affected. The FCR8.0MC5 is REACH unaffected. Regulatory requirements for your application determine which substitute is appropriate.

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