ECS-135.6-8-30B-CKM Equivalent & Substitute Parts

Part Overview

The ECS-135.6-8-30B-CKM is a 14.66 MHz surface mount crystal oscillator manufactured by ECS Inc. in the ECX-53B series. This active product operates at fundamental mode with 8pF load capacitance and 80 Ohms equivalent series resistance, housed in a 4-SMD, No Lead package measuring 5.00mm x 3.20mm. The part is ROHS3 compliant with unlimited moisture sensitivity rating and is suitable for applications requiring precise 14.66 MHz frequency generation within the -20°C to 70°C operating temperature range. Equivalent and substitute parts are identified based on matching frequency, frequency stability, operating mode, package type, and mounting configuration to ensure functional interchangeability in circuit designs.

Substiute Parts

ECS-135.6-8-30B-CKM

ECS Inc.In Stock: 1124ECS-135.6-8-30B-CKM Datasheet

Current PartRFQ

ECS-135.60-10-30B-CKM-TR

ECS Inc.In Stock: 1629ECS-135.60-10-30B-CKM-TR Datasheet

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7M-13.560MEEQ-T

TXC CORPORATIONIn Stock: 128047M-13.560MEEQ-T Datasheet

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ABM8W-13.5600MHZ-7-B1U-T3

Abracon LLCIn Stock: 1280ABM8W-13.5600MHZ-7-B1U-T3 Datasheet

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ABM8W-13.5600MHZ-8-B1U-T3

Abracon LLCIn Stock: 4360ABM8W-13.5600MHZ-8-B1U-T3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ECS-135.6-8-30B-CKM are identified based on the following critical parameters that determine functional interchangeability:

Primary Matching Criteria:

• Frequency: 14.66 MHz (exact match required)
• Frequency Stability: ±10ppm (exact match required)
• Operating Mode: Fundamental (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Package / Case: 4-SMD, No Lead (exact match required)
• Operating Temperature Range: -20°C ~ 70°C (exact match required)

Secondary Allowable Variations:

• Load Capacitance: 7pF to 10pF (within acceptable range for circuit tuning)
• ESR (Equivalent Series Resistance): 80 Ohms to 100 Ohms (within acceptable operating range)
• Physical Dimensions: Minor variations acceptable if package footprint remains compatible with 4-SMD, No Lead specification
• Compliance Standards: ROHS3 or RoHS Compliant (both acceptable)

The following parts meet these substitution criteria and are listed as equivalent alternatives to the ECS-135.6-8-30B-CKM.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active product status with current manufacturing support. Selection between the ECS-135.6-8-30B-CKM and its equivalents is determined by load capacitance requirements, ESR specifications, and physical footprint constraints specific to the application circuit.

ECS-135.60-10-30B-CKM-TR is functionally equivalent with identical ESR (80 Ohms) and differs only in load capacitance (10pF versus 8pF). Both parts are manufactured by ECS Inc. in the ECX-53B series with ROHS3 compliance and unlimited MSL rating.

7M-14.660MEEQ-T manufactured by TXC CORPORATION provides equivalent frequency and stability with 10pF load capacitance and 100 Ohms ESR. Physical dimensions are slightly smaller (3.20mm x 2.50mm versus 5.00mm x 3.20mm) with RoHS compliance certification.

ABM8W-14.6600MHZ-7-B1U-T3 and ABM8W-14.6600MHZ-8-B1U-T3 manufactured by Abracon LLC in the ABM8W series provide equivalent frequency and stability with 100 Ohms ESR. Load capacitance options of 7pF and 8pF are available. Physical dimensions are 3.20mm x 2.50mm with ROHS3 compliance and Not Applicable MSL rating.

All substitute parts are ROHS compliant and REACH unaffected, suitable for direct substitution in applications where the specified load capacitance and ESR parameters are compatible with circuit design requirements.

Frequently Asked Questions (FAQ)

Q: Can the ECS-135.60-10-30B-CKM-TR be used as a direct replacement for the ECS-135.6-8-30B-CKM?

A: Yes. Both parts share identical frequency (14.66 MHz), frequency stability (±10ppm), ESR (80 Ohms), operating mode (Fundamental), package type (4-SMD, No Lead), and operating temperature range (-20°C ~ 70°C). The difference in load capacitance (10pF versus 8pF) requires circuit tuning adjustment but does not prevent functional substitution.

Q: What is the significance of load capacitance differences between substitute parts?

A: Load capacitance affects the resonant frequency of the crystal oscillator circuit. The ECS-135.6-8-30B-CKM specifies 8pF load capacitance. Substitute parts with 7pF or 10pF load capacitance require matching load capacitance values in the oscillator circuit design to maintain the specified 14.66 MHz frequency output. Circuit tuning capacitors must be adjusted accordingly.

Q: Are the Abracon ABM8W series parts compatible with the ECS Inc. ECX-53B series in terms of physical footprint?

A: Both series use 4-SMD, No Lead package configuration. However, physical dimensions differ: ECS ECX-53B measures 5.00mm x 3.20mm while Abracon ABM8W measures 3.20mm x 2.50mm. The smaller Abracon footprint is compatible with PCB layouts designed for the larger ECS package, but the reverse substitution requires PCB redesign.

Q: What is the difference between ROHS3 Compliant and RoHS Compliant designations?

A: Both designations indicate compliance with Restriction of Hazardous Substances regulations. ROHS3 represents the current version of the directive. Both are acceptable for applications requiring RoHS compliance.

Q: Does Moisture Sensitivity Level (MSL) affect the choice of substitute parts?

A: MSL 1 (Unlimited) indicates no moisture sensitivity restrictions during storage and handling. Abracon ABM8W parts show Not Applicable MSL, indicating equivalent or superior moisture resistance. Both ratings are suitable for standard manufacturing and storage conditions.

Q: Can parts with different ESR values (80 Ohms versus 100 Ohms) be substituted?

A: ESR differences within the 80 to 100 Ohms range are acceptable for functional substitution. ESR affects circuit startup characteristics and power consumption. The 20 Ohms difference between ECS Inc. parts (80 Ohms) and Abracon/TXC parts (100 Ohms) falls within acceptable operating parameters for 14.66 MHz fundamental mode crystals.