ECS-200-8-30B-CKM 20 MHz Crystal Equivalent & Substitute Parts

Part Overview

The ECS-200-8-30B-CKM is a 20 MHz fundamental mode crystal oscillator in 4-SMD, No Lead surface mount package. This active product is designed for applications requiring precise frequency control with ±10ppm stability across the -20°C to 70°C operating temperature range. The 8pF load capacitance and 40 Ohms ESR specification define its electrical characteristics for specific circuit implementations. Substitute parts may be required due to inventory constraints, supply chain availability, or design flexibility within allowable parameter tolerances.

Key Parameters

Parameter	Value	Unit
Frequency	20.0000	MHz
Frequency Stability	±10	ppm
Load Capacitance	8	pF
ESR (Equivalent Series Resistance)	40	Ohms
Operating Mode	Fundamental	—
Operating Temperature Range	-20 to 70	°C
Mounting Type	Surface Mount	—
Package / Case	4-SMD, No Lead	—
RoHS Status	ROHS3 Compliant	—
Product Status	Active	—

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters: frequency (20 MHz), frequency stability (±10ppm), operating temperature range (-20°C to 70°C), mounting type (Surface Mount), and package type (4-SMD, No Lead). Load capacitance and ESR values define circuit compatibility and may vary within design tolerances. All substitute parts listed maintain the same frequency, stability, temperature range, and package configuration as the main part. Variations in load capacitance (6pF to 10pF) and ESR (40 to 70 Ohms) are permissible based on circuit design specifications. All substitute parts are active products with ROHS3 compliance and REACH unaffected status.

Parameter Comparison

Part Number	Manufacturer	Frequency (MHz)	Frequency Stability (ppm)	Load Capacitance (pF)	ESR (Ohms)	Package	Size (mm)	Height Max (mm)	Product Status
ECS-200-8-30B-CKM	ECS Inc.	20.0000	±10	8	40	4-SMD, No Lead	5.00 x 3.20	0.85	Active
ECS-200-10-30B-CKM-TR	ECS Inc.	20.0000	±10	10	40	4-SMD, No Lead	5.00 x 3.20	0.85	Active
ECS-200-10-33B-CKM-TR	ECS Inc.	20.0000	±10	10	40	4-SMD, No Lead	3.20 x 2.50	0.80	Active
403C11A20M00000	CTS-Frequency Controls	20.0000	±10	10	60	4-SMD, No Lead	3.20 x 2.50	0.80	Active
ABM8-20.000MHZ-10-B1U-T	Abracon LLC	20.0000	±10	10	50	4-SMD, No Lead	3.20 x 2.50	0.80	Active
ABM8W-20.0000MHZ-6-B1U-T3	Abracon LLC	20.0000	±10	6	50	4-SMD, No Lead	3.20 x 2.50	0.75	Active
ABM8W-20.0000MHZ-7-B1U-T3	Abracon LLC	20.0000	±10	7	50	4-SMD, No Lead	3.20 x 2.50	0.75	Active
RH100-20.000-10-1010-TR	Raltron Electronics	20.0000	±10	10	70	4-SMD, No Lead	3.20 x 2.50	0.80	Active

Engineering Selection Recommendations

All listed substitute parts are active products with ROHS3 compliance and REACH unaffected status, matching the regulatory and compliance profile of the main part. Selection among substitutes depends on circuit design requirements for load capacitance and ESR tolerance. The ECS-200-10-30B-CKM-TR maintains identical ESR (40 Ohms) with increased load capacitance (10pF), suitable for designs tolerating higher capacitive loading. The ECS-200-10-33B-CKM-TR and 403C11A20M00000 offer reduced physical footprint (3.20 x 2.50 mm) with load capacitance of 10pF and ESR values of 40 and 60 Ohms respectively. Abracon ABM8 series parts provide 50 Ohms ESR with load capacitance options of 6pF, 7pF, or 10pF in compact 3.20 x 2.50 mm packages. The RH100-20.000-10-1010-TR from Raltron Electronics offers 10pF load capacitance with 70 Ohms ESR. All parts maintain the same frequency, stability, temperature range, and surface mount package configuration.

Frequently Asked Questions (FAQ)

Q: Can I substitute ECS-200-8-30B-CKM with a part having different load capacitance?

A: Yes, provided the circuit design accommodates the alternative load capacitance value. The substitute parts listed include load capacitance values of 6pF, 7pF, and 10pF. Circuit validation is required to confirm compatibility with the specific oscillator design.

Q: What is the significance of ESR variation among substitute parts?

A: ESR (Equivalent Series Resistance) affects crystal impedance and circuit startup characteristics. The main part specifies 40 Ohms. Substitute parts range from 40 to 70 Ohms. Circuit design must account for ESR tolerance to ensure proper oscillation and frequency stability.

Q: Are all substitute parts available in the same package size?

A: No. The main part ECS-200-8-30B-CKM uses a 5.00 x 3.20 mm package. Most substitute parts use a smaller 3.20 x 2.50 mm package. Physical board layout compatibility must be verified before substitution.

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

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the main part. All are active products with no end-of-life status.

Q: Which substitute part most closely matches the main part specifications?

A: The ECS-200-10-30B-CKM-TR maintains identical ESR (40 Ohms) and package size (5.00 x 3.20 mm) as the main part, with the only difference being load capacitance (10pF vs. 8pF).

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