7W-1.000MBE-T CMOS Oscillator Equivalent & Substitute Parts

Part Overview

The 7W-1.000MBE-T is a 1 MHz crystal oscillator manufactured by TXC CORPORATION, designed for applications requiring CMOS output with enable/disable functionality at 3.3V supply voltage. This component operates across the industrial temperature range of -40°C to 85°C with frequency stability of ±50ppm. The part is classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure long-term supply availability for new production and legacy system support.

Substiute Parts

7W-1.000MBE-T

TXC CORPORATIONIn Stock: 9087W-1.000MBE-T Datasheet

Current PartRFQ

CPPC7L-A7BP-1.0TS

Cardinal Components Inc.In Stock: 1066CPPC7L-A7BP-1.0TS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7W-1.000MBE-T is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 1.0000 MHz
• Output Configuration: CMOS
• Supply Voltage: 3.3V
• Enable/Disable Function: Required
• Operating Temperature Range: -40°C ~ 85°C
• Package Type: 4-SMD, No Lead
• Physical Footprint: 7.00mm x 5.00mm

Allowable Variation Parameters:

• Frequency Stability: ±50ppm (baseline specification)
• Current Supply (Max): Variation permitted if within component rating
• Height - Seated (Max): Variation permitted within PCB assembly constraints
• Current - Supply (Disable): Variation permitted if within system power budget

The substitute part CPPC7L-A7BP-1.0TS from Cardinal Components Inc. meets all mandatory matching parameters and is therefore classified as a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The CPPC7L-A7BP-1.0TS is a direct functional substitute for the obsolete 7W-1.000MBE-T based on the following engineering criteria:

Electrical Equivalence: Both components operate at identical frequency (1.0000 MHz), output type (CMOS), supply voltage (3.3V), and frequency stability (±50ppm). The enable/disable function is present in both parts, ensuring functional compatibility in circuit designs.

Mechanical Compatibility: Both components utilize the same 4-SMD, No Lead package with identical footprint dimensions (7.00mm x 5.00mm). The substitute part has a maximum seated height of 1.90mm compared to 1.42mm for the original part. This height difference must be evaluated against specific PCB assembly constraints and clearance requirements.

Thermal and Environmental Compliance: Both components operate across the identical temperature range (-40°C to 85°C) and share equivalent moisture sensitivity ratings (MSL 1 - Unlimited). Both are RoHS compliant and REACH unaffected.

Regulatory and Compliance Status: The substitute part carries ROHS3 compliance, which supersedes the RoHS compliance of the original part, providing enhanced regulatory alignment for current manufacturing standards.

Power Consumption Consideration: The substitute part specifies a maximum supply current of 25mA compared to 20mA for the original part. Additionally, the substitute provides a disable mode current specification of 50µA, which was not specified for the original part. System power budget analysis is required to confirm acceptability of the higher maximum supply current.

Frequently Asked Questions (FAQ)

Q: Can the CPPC7L-A7BP-1.0TS be used as a direct replacement for the 7W-1.000MBE-T without circuit modification?

A: Yes, the CPPC7L-A7BP-1.0TS is electrically and mechanically compatible for direct substitution. Both components share identical frequency, output type, supply voltage, enable/disable function, and operating temperature range. No circuit modification is required. However, PCB assembly clearance must be verified due to the increased seated height (1.90mm vs. 1.42mm).

Q: What is the significance of the height difference between these two components?

A: The substitute part has a maximum seated height of 1.90mm compared to 1.42mm for the original part, representing a 0.48mm increase. This difference must be evaluated against PCB design constraints, including component clearance to adjacent parts, conformal coating requirements, and potting compound considerations. If clearance is insufficient, PCB layout modification may be necessary.

Q: Are there any differences in power consumption between these parts?

A: The substitute part specifies a maximum supply current of 25mA compared to 20mA for the original part, representing a 5mA increase. Additionally, the substitute provides a disable mode current specification of 50µA. System power budget analysis is required to confirm that the higher maximum supply current does not exceed design limits. The disable mode current specification for the substitute part provides additional design flexibility for power management applications.

Q: Do both parts meet current regulatory requirements?

A: Both components are RoHS compliant and REACH unaffected. The substitute part carries ROHS3 compliance, which represents the current regulatory standard and provides enhanced compliance alignment for new production designs.

Q: Is the frequency stability specification identical between these parts?

A: Yes, both components specify frequency stability of ±50ppm across the operating temperature range. This ensures equivalent frequency accuracy performance in applications requiring this stability specification.

Q: What packaging format is used for both components?

A: Both components are supplied in Tape & Reel (TR) packaging format, suitable for automated assembly processes. The physical footprint and package type (4-SMD, No Lead) are identical, ensuring compatibility with existing pick-and-place programming and PCB assembly processes.