7W-12.000MBA-T CMOS Oscillator Equivalent & Substitute Parts

Part Overview

The 7W-12.000MBA-T is a 12 MHz XO (Standard) CMOS oscillator manufactured by TXC CORPORATION, designed for surface mount applications requiring enable/disable functionality at 3.3V supply voltage. This component operates across the industrial temperature range of -10°C to 70°C with a frequency stability of ±25ppm and maximum supply current of 20mA.

The 7W-12.000MBA-T is classified as Obsolete in product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for applications currently utilizing this oscillator.

Substiute Parts

7W-12.000MBA-T

TXC CORPORATIONIn Stock: 9687W-12.000MBA-T Datasheet

Current PartRFQ

SXO75C3C171-12.000M

Suntsu Electronics, Inc.In Stock: 4020SXO75C3C171-12.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7W-12.000MBA-T is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 12 MHz (exact match required)
• Output Type: CMOS (electrical interface compatibility)
• Supply Voltage: 3.3V (power supply compatibility)
• Function: Enable/Disable (operational feature requirement)
• Frequency Stability: ±25ppm (timing accuracy specification)
• Operating Temperature Range: -10°C to 70°C (environmental operating window)
• Package Type: 4-SMD, No Lead (PCB footprint compatibility)
• Physical Dimensions: 7.00mm L x 5.00mm W (board layout compatibility)

Acceptable Variation Parameters:

• Maximum Supply Current: Substitute may be lower than 20mA (reduced power consumption is acceptable)
• Maximum Seated Height: Substitute may be higher than 1.42mm (within assembly clearance limits)
• Product Status: Active status preferred for long-term availability
• RoHS Compliance: ROHS3 Compliant is acceptable (meets or exceeds RoHS requirements)

The SXO75C3C171-12.000M from Suntsu Electronics, Inc. meets all mandatory matching parameters and demonstrates acceptable variation in supply current and height specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SXO75C3C171-12.000M

The SXO75C3C171-12.000M is the qualified equivalent substitute for the 7W-12.000MBA-T based on the following engineering criteria:

1. Functional Equivalence: All mandatory electrical and mechanical parameters match exactly, including frequency, output type, supply voltage, enable/disable function, frequency stability, operating temperature range, and package configuration.

2. Supply Current Advantage: The substitute operates at 16mA maximum supply current, which is 4mA lower than the original 20mA specification. This represents improved power efficiency with no functional compromise.

3. Physical Compatibility: Identical footprint dimensions (7.00mm x 5.00mm) ensure direct PCB layout compatibility. The seated height increase from 1.42mm to 1.60mm (0.18mm difference) remains within standard assembly clearance tolerances for surface mount applications.

4. Compliance Status: The SXO75C3C171-12.000M carries ROHS3 Compliant certification, which meets or exceeds the RoHS Compliant status of the original part.

5. Product Availability: Active product status ensures long-term supply chain continuity and availability for ongoing production requirements.

6. Regulatory Alignment: Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, maintaining regulatory consistency.

Frequently Asked Questions (FAQ)

Q1: Can the SXO75C3C171-12.000M be used as a direct replacement for the 7W-12.000MBA-T without circuit modifications?

A: Yes. The SXO75C3C171-12.000M is a direct substitute with identical electrical specifications (frequency, output type, supply voltage, enable/disable function, and frequency stability) and identical PCB footprint dimensions. No circuit modifications are required.

Q2: What is the significance of the 4mA difference in maximum supply current?

A: The SXO75C3C171-12.000M operates at 16mA maximum compared to the original 20mA. This lower current consumption represents improved power efficiency. Since the substitute draws less current than the original specification, existing power supply designs will operate within safe margins.

Q3: Does the 0.18mm increase in seated height affect PCB assembly?

A: No. The increase from 1.42mm to 1.60mm maximum seated height remains within standard surface mount assembly clearance tolerances. This variation does not impact component placement, reflow soldering, or board-level clearances in typical applications.

Q4: Are there any compliance or certification differences between the two parts?

A: Both parts maintain equivalent regulatory status. The SXO75C3C171-12.000M carries ROHS3 Compliant certification, which meets or exceeds the RoHS Compliant status of the original part. Both share identical ECCN and HTSUS classifications.

Q5: Why is the SXO75C3C171-12.000M preferred despite the original part being in stock?

A: The 7W-12.000MBA-T is classified as Obsolete, indicating discontinued production and limited long-term availability. The SXO75C3C171-12.000M maintains Active product status with significantly higher inventory (3924 pcs vs. 893 pcs), ensuring reliable supply chain continuity for current and future production requirements.

Q6: What parameters must remain identical for substitution to be valid?

A: Frequency (12 MHz), output type (CMOS), supply voltage (3.3V), enable/disable function, frequency stability (±25ppm), operating temperature range (-10°C to 70°C), and package type (4-SMD, No Lead with 7.00mm x 5.00mm dimensions) must all match exactly. These parameters determine electrical and mechanical compatibility.