ECS-P143-A Equivalent & Substitute Parts

Part Overview

The ECS-P143-A is an XO (Standard) programmable crystal oscillator manufactured by ECS Inc. This component operates across a frequency range of 1 MHz to 125 MHz with HCMOS output and 3.3V supply voltage. The oscillator features Enable/Disable functionality and is housed in a 14-DIP, 4-lead full-size metal can package suitable for through-hole mounting applications.

The ECS-P143-A maintains Active product status with 1019 units currently in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained, allowing for direct replacement in circuit designs while accommodating supply chain variations or specific compliance requirements.

Substiute Parts

ECS-P143-A

ECS Inc.In Stock: 1034ECS-P143-A Datasheet

Current PartRFQ

ECS-P143-AX

ECS Inc.In Stock: 827ECS-P143-AX Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECS-P143-A is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

• Identical frequency range (1 MHz ~ 125 MHz)
• Matching output type (HCMOS)
• Identical supply voltage (3.3V)
• Equivalent frequency stability (±100ppm)
• Matching operating temperature range (0°C ~ 70°C)
• Enable/Disable function capability

Mechanical Compatibility Requirements:

• Identical package type (14-DIP, 4 Leads, Full Size Metal Can)
• Matching physical dimensions (0.815" L x 0.508" W / 20.70mm x 12.90mm)
• Equivalent seated height (0.197" / 5.00mm maximum)
• Through-hole mounting configuration
• Moisture Sensitivity Level 1 (Unlimited)

The ECS-P143-AX meets all electrical and mechanical substitution criteria, maintaining full compatibility with existing circuit designs and PCB layouts while offering alternative supply chain sourcing and compliance options.

Parameter Comparison

Engineering Selection Recommendations

ECS-P143-A Selection Criteria: The ECS-P143-A is appropriate for applications where RoHS non-compliance is acceptable or where existing designs are already qualified to this specification. This part maintains Active product status with robust inventory availability (1019 units in stock), supporting immediate procurement requirements.

ECS-P143-AX Selection Criteria: The ECS-P143-AX provides ROHS3 compliance, making it suitable for applications subject to RoHS3 regulatory requirements or design standards mandating lead-free component specifications. Both parts maintain REACH Unaffected status. The ECS-P143-AX demonstrates lower maximum supply current (28mA versus 45mA), which may provide thermal or power budget advantages in power-sensitive applications. This substitute maintains Active product status with adequate inventory (787 units in stock).

Both parts are functionally equivalent across all critical electrical and mechanical parameters, with substitution decisions driven by compliance requirements and power consumption considerations rather than functional capability.

Frequently Asked Questions (FAQ)

Q: Can the ECS-P143-AX directly replace the ECS-P143-A in existing circuit designs?

A: Yes. The ECS-P143-AX maintains identical electrical specifications (frequency range, output type, supply voltage, frequency stability, operating temperature) and mechanical compatibility (package type, physical dimensions, mounting configuration). Direct substitution is supported without circuit redesign.

Q: What is the primary difference between these two parts?

A: The ECS-P143-AX is ROHS3 compliant while the ECS-P143-A is RoHS non-compliant. Additionally, the ECS-P143-AX operates at a lower maximum supply current (28mA) compared to the ECS-P143-A (45mA).

Q: Are there any frequency or output compatibility differences?

A: No. Both parts support the identical frequency range (1 MHz ~ 125 MHz), HCMOS output type, and ±100ppm frequency stability specification. Frequency selection is programmed by DiGi Electronics during ordering.

Q: Do these parts have different package footprints?

A: No. Both parts use the 14-DIP, 4-lead full-size metal can package with identical physical dimensions (0.815" L x 0.508" W) and seated height (0.197" maximum). PCB layouts are fully compatible.

Q: Which part should be selected for new designs?

A: Selection depends on regulatory and compliance requirements. For designs requiring RoHS3 compliance, the ECS-P143-AX is appropriate. For applications without RoHS3 mandates, either part is functionally suitable. The ECS-P143-AX offers the additional benefit of lower power consumption.

Q: Are both parts currently available?

A: Yes. The ECS-P143-A has 1019 units in stock, and the ECS-P143-AX has 787 units in stock. Both maintain Active product status.

Q: What is the operating temperature range for both parts?

A: Both parts operate across 0°C to 70°C. This specification is identical between the two parts.