CS00563-40M Equivalent & Substitute Parts

Part Overview

The CS00563-40M is a 40 MHz ±10ppm crystal oscillator manufactured by NDK America, Inc., designed for surface mount applications in the NX2520SA series. This component operates at a fundamental frequency with a 10pF load capacitance and 50 Ohms equivalent series resistance, housed in a 4-SMD, No Lead package measuring 2.50mm x 2.00mm. The part is Active status and RoHS Compliant with MSL 1 rating. Equivalent and substitute parts are identified based on matching frequency, stability, load capacitance tolerance, ESR compatibility, and package specifications to ensure functional interchangeability in circuit designs.

Key Parameters

Parameter	CS00563-40M
Frequency	40 MHz
Frequency Stability	±10ppm
Frequency Tolerance	±10ppm
Load Capacitance	10pF
ESR (Equivalent Series Resistance)	50 Ohms
Operating Mode	Fundamental
Operating Temperature Range	-20°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	4-SMD, No Lead
Size / Dimension	2.50mm x 2.00mm
Height - Seated (Max)	0.65mm
RoHS Status	RoHS Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CS00563-40M is determined by the following critical parameters:

Primary Matching Criteria:

Frequency: 40 MHz (exact match required)
Frequency Stability: ±10ppm (exact match required)
Operating Mode: Fundamental (exact match required)
Operating Temperature Range: -20°C ~ 70°C (exact match required)
Package Type: 4-SMD, No Lead (exact match required)

Secondary Compatibility Parameters:

Load Capacitance: 10pF (primary specification; alternatives with 7pF or 8pF may be used with circuit design verification)
ESR: 50 Ohms (primary specification; alternatives with 40 Ohms or 60 Ohms may be used with circuit design verification)
Physical Dimensions: Variations in length, width, and height must accommodate PCB layout constraints

Compliance & Certification:

RoHS Status: RoHS3 Compliant or RoHS Compliant
MSL Rating: 1 (Unlimited) or Not Applicable
ECCN: EAR99

Substitute parts are grouped into two categories:

Category A - Direct Equivalents (10pF Load Capacitance):

ABM11-40.000MHZ-B1U-T3 (Abracon LLC, 10pF, 60 Ohms ESR)
ECS-400-10-37-CKM-TR (ECS Inc., 10pF, 50 Ohms ESR)

Category B - Compatible Alternatives (7pF or 8pF Load Capacitance):

8Q-40.000MEEV-T (FTS, 8pF, 80 Ohms ESR)
ABM10W-40.0000MHZ-7-B1U-T3 (Abracon LLC, 7pF, 40 Ohms ESR)
ABM10W-40.0000MHZ-8-B1U-T3 (Abracon LLC, 8pF, 40 Ohms ESR)
ABM11W-40.0000MHZ-7-B1U-T3 (Abracon LLC, 7pF, 40 Ohms ESR)
ABM11W-40.0000MHZ-8-B1U-T3 (Abracon LLC, 8pF, 40 Ohms ESR)
ABM12W-40.0000MHZ-7-B1U-T3 (Abracon LLC, 7pF, 50 Ohms ESR)
ABM12W-40.0000MHZ-8-B1U-T3 (Abracon LLC, 8pF, 50 Ohms ESR)
ECS-400-8-36CKM (ECS Inc., 8pF, 40 Ohms ESR)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Frequency	Frequency Stability	Load Capacitance	ESR (Ohms)	Operating Temperature	Package	Size (mm)	Height (mm)	RoHS Status	MSL
CS00563-40M	NDK America, Inc.	40 MHz	±10ppm	10pF	50	-20°C ~ 70°C	4-SMD, No Lead	2.50 x 2.00	0.65	RoHS Compliant	1
8Q-40.000MEEV-T	FTS	40 MHz	±10ppm	8pF	80	-20°C ~ 70°C	4-SMD, No Lead	1.60 x 1.20	0.40	RoHS Compliant	1
ABM10W-40.0000MHZ-7-B1U-T3	Abracon LLC	40 MHz	±10ppm	7pF	40	-20°C ~ 70°C	4-SMD, No Lead	2.50 x 2.00	0.60	ROHS3 Compliant	N/A
ABM10W-40.0000MHZ-8-B1U-T3	Abracon LLC	40 MHz	±10ppm	8pF	40	-20°C ~ 70°C	4-SMD, No Lead	2.50 x 2.00	0.60	ROHS3 Compliant	N/A
ABM11-40.000MHZ-B1U-T3	Abracon LLC	40 MHz	±10ppm	10pF	60	-20°C ~ 70°C	4-SMD, No Lead	2.00 x 1.60	0.59	ROHS3 Compliant	N/A
ABM11W-40.0000MHZ-7-B1U-T3	Abracon LLC	40 MHz	±10ppm	7pF	40	-20°C ~ 70°C	4-SMD, No Lead	2.00 x 1.60	0.50	ROHS3 Compliant	N/A
ABM11W-40.0000MHZ-8-B1U-T3	Abracon LLC	40 MHz	±10ppm	8pF	40	-20°C ~ 70°C	4-SMD, No Lead	2.00 x 1.60	0.50	ROHS3 Compliant	N/A
ABM12W-40.0000MHZ-7-B1U-T3	Abracon LLC	40 MHz	±10ppm	7pF	50	-20°C ~ 70°C	4-SMD, No Lead	1.60 x 1.20	0.40	ROHS3 Compliant	N/A
ABM12W-40.0000MHZ-8-B1U-T3	Abracon LLC	40 MHz	±10ppm	8pF	50	-20°C ~ 70°C	4-SMD, No Lead	1.60 x 1.20	0.40	ROHS3 Compliant	N/A
ECS-400-10-37-CKM-TR	ECS Inc.	40 MHz	±10ppm	10pF	50	-20°C ~ 70°C	4-SMD, No Lead	2.00 x 1.60	0.55	ROHS3 Compliant	1
ECS-400-8-36CKM	ECS Inc.	40 MHz	±10ppm	8pF	40	-20°C ~ 70°C	4-SMD, No Lead	2.50 x 2.00	0.65	ROHS3 Compliant	1

Engineering Selection Recommendations

Direct Substitution (No Circuit Modification Required):

ECS-400-10-37-CKM-TR is the closest direct equivalent to CS00563-40M. Both parts share identical frequency (40 MHz), stability (±10ppm), load capacitance (10pF), and ESR (50 Ohms). Physical dimensions differ slightly (2.00mm x 1.60mm vs. 2.50mm x 2.00mm), but both are 4-SMD, No Lead packages suitable for standard PCB layouts. ECS-400-10-37-CKM-TR carries ROHS3 Compliant certification and MSL 1 rating, matching the compliance profile of the original part.

ABM11-40.000MHZ-B1U-T3 provides direct functional equivalence with matching frequency, stability, and load capacitance (10pF). ESR is 60 Ohms compared to the original 50 Ohms, representing a 20% increase. Physical dimensions are 2.00mm x 1.60mm. This part is suitable for applications where ESR tolerance permits the variation.

Compatible Alternatives (Load Capacitance Variation):

Parts with 8pF or 7pF load capacitance (ABM10W, ABM11W, ABM12W series from Abracon LLC; 8Q-40.000MEEV-T from FTS; ECS-400-8-36CKM from ECS Inc.) are compatible alternatives when circuit design accommodates load capacitance adjustment. These parts maintain the 40 MHz frequency and ±10ppm stability. ESR values range from 40 Ohms to 80 Ohms depending on the specific part number. Physical dimensions vary across the ABM12W (1.60mm x 1.20mm), ABM11W (2.00mm x 1.60mm), and ABM10W (2.50mm x 2.00mm) series.

Compliance Considerations:

All substitute parts listed are RoHS3 Compliant or RoHS Compliant, meeting environmental regulatory requirements. MSL ratings are either 1 (Unlimited) or Not Applicable, indicating low moisture sensitivity suitable for standard manufacturing processes. ECCN classification is EAR99 for all parts, consistent with export control requirements.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different load capacitance (7pF or 8pF instead of 10pF)?

A: Load capacitance affects the oscillation frequency and circuit stability. Parts with 7pF or 8pF load capacitance will operate at slightly different frequencies than the original 10pF specification. Substitution is possible only if your circuit design accommodates this variation through load capacitance adjustment or if the application tolerance permits the frequency shift. Consult your circuit schematic and oscillator design specifications before selecting an alternative load capacitance value.

Q: What is the significance of ESR (Equivalent Series Resistance) differences?

A: ESR affects the power consumption and startup characteristics of the crystal oscillator. The CS00563-40M specifies 50 Ohms ESR. Substitute parts range from 40 Ohms to 80 Ohms. Lower ESR (40 Ohms) reduces power consumption but may require circuit tuning. Higher ESR (60 Ohms or 80 Ohms) increases power consumption slightly. Verify that your oscillator circuit design supports the ESR range of the selected substitute part.

Q: Are there physical dimension constraints I should consider?

A: Yes. The CS00563-40M measures 2.50mm x 2.00mm with a maximum seated height of 0.65mm. Substitute parts vary in dimensions: ABM12W and 8Q series are smaller (1.60mm x 1.20mm, 0.40mm height), while ABM10W and ECS-400-8-36CKM match the original footprint (2.50mm x 2.00mm, 0.60-0.65mm height). Verify PCB layout compatibility before selecting a substitute with different dimensions.

Q: Do all substitute parts meet RoHS compliance requirements?

A: Yes. All substitute parts listed are either RoHS Compliant or ROHS3 Compliant. The original CS00563-40M is RoHS Compliant. ROHS3 Compliant parts meet the same environmental standards with updated certification. Both certifications are acceptable for applications requiring RoHS compliance.

Q: What is MSL (Moisture Sensitivity Level) and why does it matter?

A: MSL indicates the component's sensitivity to moisture during storage and handling. The CS00563-40M has MSL 1 (Unlimited), meaning it can be stored indefinitely without moisture control. Most Abracon LLC substitutes list MSL as Not Applicable, indicating they do not require special moisture handling. ECS Inc. parts maintain MSL 1 rating. For standard manufacturing environments, both MSL 1 and Not Applicable ratings are acceptable.

Q: Which substitute part is recommended for direct replacement without circuit modification?

A: ECS-400-10-37-CKM-TR is the recommended direct replacement. It matches the CS00563-40M in frequency (40 MHz), stability (±10ppm), load capacitance (10pF), and ESR (50 Ohms). Physical dimensions are slightly different but compatible with standard 4-SMD, No Lead PCB layouts. ABM11-40.000MHZ-B1U-T3 is an alternative direct replacement with identical frequency, stability, and load capacitance, though ESR is 60 Ohms instead of 50 Ohms.

Q: Can I mix substitute parts from different manufacturers in the same design?

A: Yes, provided each part meets the electrical and mechanical specifications required by your circuit. However, for consistency in manufacturing and supply chain management, it is preferable to standardize on a single substitute part number across production runs.

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