P123-155.52M LVPECL Oscillator Equivalent & Substitute Parts

Part Overview

The P123-155.52M is an active crystal oscillator (XO) manufactured by Connor Winfield, operating at 155.52 MHz with LVPECL output. This component is designed for high-speed digital applications requiring precise frequency generation with enable/disable functionality. The part is currently in active production status with 1141 units available in stock.

Substitute parts are identified when they maintain identical or compatible electrical and mechanical specifications, allowing direct replacement in circuit designs without functional degradation.

Substiute Parts

P123-155.52M

Connor WinfieldIn Stock: 1208P123-155.52M Datasheet

Current PartRFQ

TPSM-P50HM33ST1-155.520M

Transko Electronics, Inc.In Stock: 1669TPSM-P50HM33ST1-155.520M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The TPSM-P50HM33ST1-155.520M from Transko Electronics, Inc. qualifies as a direct substitute based on the following critical parameters:

• Frequency Match: Both parts operate at 155.52 MHz
• Output Compatibility: Both provide LVPECL output
• Supply Voltage: Both require 3.3V operation
• Enable/Disable Function: Both include this control feature
• Frequency Stability: Both maintain ±50ppm stability
• Operating Temperature: Both support 0°C ~ 70°C range
• Package Equivalence: Both use 6-SMD, No Lead package with 7.00mm x 5.00mm footprint
• Compliance: Both are ROHS3 compliant with MSL 1 rating

Parameter Comparison

Engineering Selection Recommendations

Both parts maintain active product status and full ROHS3 compliance. The TPSM-P50HM33ST1-155.520M presents a viable alternative with the following considerations based on provided specifications:

The substitute part exhibits a maximum supply current of 100mA compared to 90mA for the primary part, representing a 10mA increase in worst-case current draw. The substitute part has a reduced seated height of 1.60mm versus 2.00mm, providing improved PCB clearance in space-constrained applications.

Both parts are classified as MSL 1 with unlimited moisture sensitivity, indicating equivalent handling and storage requirements. Selection between these parts should be based on supply availability, lead time requirements, and specific application current budget constraints.

Frequently Asked Questions (FAQ)

Q: Can the TPSM-P50HM33ST1-155.520M directly replace the P123-155.52M in existing designs?

A: Yes. Both parts share identical frequency, output type, supply voltage, enable/disable functionality, frequency stability, operating temperature range, and package footprint. The substitute part is mechanically and electrically compatible for direct PCB substitution.

Q: What is the significance of the different maximum supply currents (90mA vs 100mA)?

A: The substitute part has a 10mA higher maximum supply current specification. This difference should be evaluated against the application's power budget and voltage regulator capacity. Both values represent worst-case specifications under full load conditions.

Q: Does the reduced height of the substitute part (1.60mm vs 2.00mm) affect compatibility?

A: No. The reduced height is advantageous for applications with limited vertical clearance. Both parts use identical footprints and mounting interfaces, making the lower profile a beneficial characteristic for space-constrained designs.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts are ROHS3 compliant and carry MSL 1 moisture sensitivity ratings. No compliance or regulatory differences exist between the two parts based on provided specifications.

Q: What packaging formats are available for these parts?

A: Both the P123-155.52M and TPSM-P50HM33ST1-155.520M are supplied in Strip packaging for surface mount assembly.