ECS-P143-B Equivalent & Substitute Parts

Part Overview

The ECS-P143-B is an XO (Standard) programmable crystal oscillator featuring HCMOS output, designed for applications requiring frequency selection between 1 MHz and 125 MHz. This through-hole mounted device operates at 3.3V with enable/disable functionality and delivers ±50ppm frequency stability across a 0°C to 70°C operating temperature range. The part is housed in a 14-DIP, 4-lead full-size metal can package and is currently in active production status. Identifying equivalent substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate varying compliance requirements across different manufacturing environments.

Substiute Parts

ECS-P143-B

ECS Inc.In Stock: 982ECS-P143-B Datasheet

Current PartRFQ

ECS-P143-BX

ECS Inc.In Stock: 973ECS-P143-BX Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECS-P143-B is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must match identically for a part to function as a direct substitute:

• Base Resonator: Crystal
• Type: XO (Standard)
• Output: HCMOS
• Voltage - Supply: 3.3V
• Available Frequency Range: 1 MHz ~ 125 MHz
• Frequency Stability (Total): ±50ppm
• Function: Enable/Disable
• Operating Temperature: 0°C ~ 70°C
• Current - Supply (Max): 28mA
• Mounting Type: Through Hole
• Package / Case: 14-DIP, 4 Leads (Full Size, Metal Can)
• Size / Dimension: 0.815" L x 0.508" W (20.70mm x 12.90mm)
• Height - Seated (Max): 0.197" (5.00mm)
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected
• ECCN: EAR99
• HTSUS: 8542.39.0001

The ECS-P143-BX meets all substitution criteria and is classified as a direct equivalent part.

Parameter Comparison

Engineering Selection Recommendations

Both the ECS-P143-B and ECS-P143-BX are active production parts manufactured by ECS Inc. and are electrically and mechanically identical across all specified parameters. The primary distinction between these parts is RoHS compliance status.

The ECS-P143-B is RoHS non-compliant, while the ECS-P143-BX is ROHS3 compliant. Selection between these parts should be based on the regulatory requirements of the end application and manufacturing jurisdiction. Applications subject to RoHS3 regulations must use the ECS-P143-BX. Applications without RoHS compliance requirements may use either part interchangeably from a functional and mechanical standpoint.

Both parts are REACH unaffected and carry the same ECCN and HTSUS classifications, indicating equivalent export and tariff treatment.

Frequently Asked Questions (FAQ)

Q: Can the ECS-P143-BX be used as a direct replacement for the ECS-P143-B in existing designs?

A: Yes. The ECS-P143-BX is electrically and mechanically identical to the ECS-P143-B across all specified parameters including frequency range, output type, supply voltage, stability, operating temperature, current consumption, and physical dimensions. The parts are pin-compatible and functionally interchangeable.

Q: What is the difference between the ECS-P143-B and ECS-P143-BX?

A: The primary difference is RoHS compliance status. The ECS-P143-B is RoHS non-compliant, while the ECS-P143-BX is ROHS3 compliant. All other electrical and mechanical specifications are identical.

Q: Are there any package or mounting differences between these parts?

A: No. Both parts use identical 14-DIP, 4-lead full-size metal can packages with through-hole mounting. Physical dimensions, including length, width, and seated height, are identical.

Q: Which part should I select for a new design?

A: Selection depends on regulatory requirements. If RoHS3 compliance is required, use the ECS-P143-BX. If RoHS compliance is not a requirement, either part may be used based on availability and supply chain considerations.

Q: Are the frequency programming options identical between these parts?

A: Yes. Both parts support the same available frequency range of 1 MHz to 125 MHz and are programmed by DiGi Electronics according to customer specifications entered in web order notes.

Q: Do these parts have the same moisture sensitivity rating?

A: Yes. Both parts carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Are export restrictions the same for both parts?

A: Yes. Both parts carry the same ECCN classification (EAR99) and HTSUS code (8542.39.0001), indicating identical export and tariff treatment.