CFSE7 622.08 MHz PECL Oscillator - Equivalent & Substitute Parts

Part Overview

The CFSE7 is a 622.08 MHz XO (Standard) PECL oscillator manufactured by Cardinal Components Inc., designed for applications requiring PECL output signaling at 3.3V supply voltage with enable/disable functionality. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations.

The CFSE7 operates across a temperature range of -10°C to 85°C with ±30ppm frequency stability and is packaged in a 6-SMD, No Lead surface mount configuration measuring 7.00mm × 5.00mm × 2.00mm (max height).

Substiute Parts

CFSE7

Cardinal Components Inc.In Stock: 1087CFSE7 Datasheet

Current PartRFQ

X502-622.08M

Connor WinfieldIn Stock: 724X502-622.08M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CFSE7 are identified based on the following critical parameters that determine functional compatibility:

Matching Parameters (Required for Substitution):

• Frequency: 622.08 MHz (exact match)
• Voltage - Supply: 3.3V (exact match)
• Function: Enable/Disable capability (exact match)
• Mounting Type: Surface Mount (exact match)
• Package / Case: 6-SMD, No Lead (exact match)

Allowable Variations:

• Output Type: PECL to LVDS conversion is permissible when system-level signal conditioning is available
• Operating Temperature Range: Substitute may have narrower range if application requirements are met
• Physical Dimensions: Minor variations acceptable within PCB layout constraints
• Frequency Stability: Substitute specifications must meet or exceed application requirements

The X502-622.08M from Connor Winfield qualifies as a substitute based on matching frequency, supply voltage, enable/disable function, surface mount packaging, and 6-SMD No Lead case. The primary difference is output signaling type (LVDS vs. PECL), which requires system-level compatibility verification.

Parameter Comparison

Engineering Selection Recommendations

CFSE7 (Cardinal Components Inc.):

• Product Status: Obsolete
• Compliance: REACH Unaffected; ECCN EAR99
• Inventory: 1061 Pcs available
• Recommendation: Suitable only for legacy system maintenance or existing stock utilization. Not recommended for new designs due to obsolete status.

X502-622.08M (Connor Winfield):

• Product Status: Active
• Compliance: RoHS3 Compliant; REACH Unaffected; ECCN EAR99
• Inventory: 685 Pcs available
• Recommendation: Preferred for new designs and ongoing production. Active product status ensures long-term availability and manufacturer support. RoHS3 compliance meets current environmental standards.

Selection between these parts depends on system-level requirements regarding output signaling type (PECL vs. LVDS) and operating temperature range. The X502-622.08M is the recommended choice for applications where LVDS output is compatible with downstream receiver circuits and operating temperatures remain within 0°C to 70°C.

Frequently Asked Questions (FAQ)

Q: Can the X502-622.08M directly replace the CFSE7 without circuit modifications?

A: Direct replacement depends on receiver circuit compatibility. The CFSE7 outputs PECL signaling, while the X502-622.08M outputs LVDS signaling. If the receiving circuit is designed for PECL input, signal conditioning or receiver replacement is required. If the receiving circuit supports LVDS input, direct replacement is feasible.

Q: What is the impact of the narrower operating temperature range of the X502-622.08M (0°C ~ 70°C vs. -10°C ~ 85°C)?

A: The X502-622.08M has a narrower operating temperature range. Applications requiring operation below 0°C or above 70°C cannot use this substitute. Verify application temperature requirements before selection.

Q: Are there physical layout considerations when substituting the X502-622.08M for the CFSE7?

A: Yes. The X502-622.08M is slightly larger (7.62mm × 5.13mm vs. 7.00mm × 5.00mm) and taller (2.54mm vs. 2.00mm). Verify PCB layout clearances and height constraints before implementation.

Q: What certifications and compliance standards apply to both parts?

A: Both parts are REACH Unaffected and classified as ECCN EAR99. The X502-622.08M additionally carries RoHS3 compliance certification, meeting current environmental and hazardous substance restrictions.

Q: Is the X502-622.08M suitable for new product designs?

A: Yes. The X502-622.08M is classified as Active product status with RoHS3 compliance, making it suitable for new designs. The CFSE7, being obsolete, is not recommended for new product development.