7W-70.656MBE-T CMOS Oscillator Equivalent & Substitute Parts

Part Overview

The 7W-70.656MBE-T is a 70.656 MHz XO (Standard) CMOS oscillator manufactured by TXC CORPORATION. This surface mount device operates at 3.3V with Enable/Disable functionality and is housed in a 4-SMD, No Lead package measuring 7.00mm x 5.00mm. The part is classified as Obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, design updates, and procurement continuity.

Substiute Parts

7W-70.656MBE-T
TXC CORPORATIONIn Stock: 9797W-70.656MBE-T Datasheet
7W-70.656MBE-T
Current Part
530CA70M6560DGR
Skyworks Solutions Inc.In Stock: 769530CA70M6560DGR Datasheet
530CA70M6560DGR
Similar

Key Parameters

Parameter Value
Frequency 70.656 MHz
Output Type CMOS
Supply Voltage 3.3V
Function Enable/Disable
Frequency Stability ±50ppm
Operating Temperature Range -40°C ~ 85°C
Mounting Type Surface Mount
Package Type SMD, No Lead
Footprint Dimensions 7.00mm x 5.00mm
RoHS Compliance RoHS Compliant
Moisture Sensitivity Level MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 7W-70.656MBE-T is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

  • Frequency: 70.656 MHz (exact match required)
  • Output Type: CMOS
  • Supply Voltage: 3.3V
  • Function: Enable/Disable capability
  • Frequency Stability: ±50ppm
  • Operating Temperature Range: -40°C ~ 85°C
  • Mounting Type: Surface Mount
  • RoHS Compliance: RoHS Compliant
  • Moisture Sensitivity Level: MSL 1

Allowable Variations:

  • Package configuration (4-SMD vs. 6-SMD, No Lead)
  • Maximum supply current (within system design limits)
  • Seated height (within PCB assembly constraints)
  • Manufacturer identity (different qualified suppliers)

The substitute part 530CA70M6560DGR from Skyworks Solutions Inc. meets all mandatory matching parameters while operating in an Active product status, providing long-term availability and supply chain stability.

Parameter Comparison

Parameter 7W-70.656MBE-T (TXC) 530CA70M6560DGR (Skyworks) Match Status
Manufacturer TXC CORPORATION Skyworks Solutions Inc. Different Supplier
Series 7W Si530 Different Series
Product Status Obsolete Active Improved Availability
Frequency 70.656 MHz 70.656 MHz Exact Match
Output Type CMOS CMOS Exact Match
Supply Voltage 3.3V 3.3V Exact Match
Function Enable/Disable Enable/Disable Exact Match
Frequency Stability ±50ppm ±50ppm Exact Match
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C Exact Match
Current - Supply (Max) 20mA 88mA Substitute Higher
Current - Supply (Disable) (Max) Not Specified 75mA Additional Data
Mounting Type Surface Mount Surface Mount Exact Match
Package / Case 4-SMD, No Lead 6-SMD, No Lead Different Configuration
Footprint Dimensions 7.00mm x 5.00mm 7.00mm x 5.00mm Exact Match
Height - Seated (Max) 1.42mm 1.80mm Substitute Higher
RoHS Status RoHS Compliant RoHS Compliant Exact Match
Moisture Sensitivity Level MSL 1 (Unlimited) MSL 1 (Unlimited) Exact Match
Packaging Not Specified Tape & Reel (TR) Additional Data

Engineering Selection Recommendations

Primary Substitute: 530CA70M6560DGR

The 530CA70M6560DGR from Skyworks Solutions Inc. is the qualified equivalent for the obsolete 7W-70.656MBE-T. Selection is based on the following engineering criteria:

Compliance & Status:

  • Active product status ensures long-term availability and manufacturing support
  • RoHS Compliant certification maintained
  • MSL 1 rating provides unlimited shelf life compatibility

Functional Equivalence:

  • Identical frequency, output type, supply voltage, and enable/disable function
  • Matching frequency stability and operating temperature range
  • Identical footprint dimensions (7.00mm x 5.00mm) for PCB compatibility

Design Considerations:

  • Maximum supply current of 88mA (vs. 20mA original) requires verification that system power budget accommodates the increase
  • Seated height of 1.80mm (vs. 1.42mm original) requires confirmation of PCB assembly clearance
  • 6-SMD package configuration (vs. 4-SMD original) necessitates PCB layout review for pad compatibility

Procurement:

  • 733 units available in stock as new original components
  • Tape & Reel packaging suitable for automated assembly processes

Frequently Asked Questions (FAQ)

Q: Can the 530CA70M6560DGR directly replace the 7W-70.656MBE-T without PCB modifications?

A: The footprint dimensions are identical (7.00mm x 5.00mm), but the package configuration differs (6-SMD vs. 4-SMD). PCB pad layout must be reviewed to confirm compatibility. The increased seated height (1.80mm vs. 1.42mm) requires clearance verification.

Q: What is the impact of the higher maximum supply current (88mA vs. 20mA)?

A: System power supply and current delivery capability must be evaluated. If the original design allocated 20mA for this oscillator, the substitute's 88mA maximum rating requires confirmation that the power distribution network can support this increase without voltage regulation issues.

Q: Are both parts suitable for the same operating temperature applications?

A: Yes. Both parts operate across the identical temperature range of -40°C to 85°C with ±50ppm frequency stability, making them thermally equivalent for this specification.

Q: What does the 6-SMD package configuration mean compared to the 4-SMD original?

A: The 6-SMD configuration indicates six solder pads versus four on the original. This affects PCB layout and requires pad pattern verification before assembly. The footprint area remains the same (7.00mm x 5.00mm).

Q: Is the substitute part RoHS compliant?

A: Yes. The 530CA70M6560DGR is RoHS Compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the original part's environmental compliance.

Q: Why is the original part classified as Obsolete?

A: The 7W-70.656MBE-T from TXC CORPORATION has reached end-of-life status. The 530CA70M6560DGR from Skyworks Solutions Inc. is an Active product, providing continued manufacturing support and supply chain availability.

Q: Can I use the substitute in new designs?

A: Yes. The 530CA70M6560DGR is recommended for new designs requiring a 70.656 MHz CMOS oscillator with 3.3V supply and enable/disable functionality. Its Active status ensures long-term component availability.

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