LDC500003 125 MHz LVDS Oscillator Equivalent & Substitute Parts

Part Overview

The LDC500003 is a 125 MHz XO (Standard) LVDS oscillator manufactured by Diodes Incorporated, designed for applications requiring precision frequency generation with LVDS output signaling. This component operates at 3.3V with enable/disable functionality and is housed in a compact 6-SMD, No Lead surface mount package. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to provide design flexibility, inventory alternatives, and supply chain redundancy while maintaining electrical and mechanical compatibility.

Substiute Parts

LDC500003

Diodes IncorporatedIn Stock: 1023LDC500003 Datasheet

Current PartRFQ

SXO53L3C271-125.000M

Suntsu Electronics, Inc.In Stock: 1743SXO53L3C271-125.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LDC500003 are qualified based on strict equivalence across the following critical parameters:

• Frequency: 125 MHz (exact match required)
• Output signaling: LVDS (identical electrical interface)
• Supply voltage: 3.3V (same power requirement)
• Enable/Disable function: Present on both main and substitute parts
• Frequency stability: ±25ppm (matching tolerance specification)
• Operating temperature range: -20°C ~ 70°C (identical thermal envelope)
• Package type: 6-SMD, No Lead (mechanical and electrical footprint compatibility)
• Package dimensions: 5.00mm x 3.20mm (PCB layout compatibility)
• Mounting type: Surface Mount (assembly process compatibility)
• Compliance: ROHS3 Compliant (regulatory equivalence)

The SXO53L3C271-125.000M from Suntsu Electronics, Inc. meets all substitution criteria and is classified as a direct equivalent for the LDC500003.

Parameter Comparison

Engineering Selection Recommendations

Both the LDC500003 and SXO53L3C271-125.000M are active production parts with full ROHS3 compliance and EAR99 export classification. Selection between these parts should be based on:

• Supply chain availability and lead time requirements
• Inventory status and procurement cost
• PCB layout constraints: The SXO53L3C271-125.000M has a lower seated height (1.20mm vs. 1.30mm), which may provide marginal clearance advantages in space-constrained designs
• Power budget considerations: The SXO53L3C271-125.000M has a higher maximum supply current (60mA vs. 47mA), which should be evaluated against available power delivery capacity
• Packaging preference: The SXO53L3C271-125.000M is available in Bulk packaging, while the LDC500003 packaging specification is not provided

Both parts are suitable for direct substitution in applications requiring 125 MHz LVDS oscillation with 3.3V supply and enable/disable control.

Frequently Asked Questions (FAQ)

Q: Can the SXO53L3C271-125.000M be used as a direct replacement for the LDC500003?

A: Yes. Both parts share identical electrical specifications (125 MHz, LVDS output, 3.3V supply, ±25ppm stability, enable/disable function) and mechanical compatibility (6-SMD No Lead package, 5.00mm x 3.20mm footprint, surface mount). Both are ROHS3 compliant and active production parts.

Q: What are the differences between these two parts?

A: The primary differences are manufacturer (Diodes Incorporated vs. Suntsu Electronics), maximum supply current (47mA vs. 60mA), and seated height (1.30mm vs. 1.20mm). These differences do not affect functional compatibility in standard applications.

Q: Does the higher supply current of the SXO53L3C271-125.000M affect compatibility?

A: No. The higher maximum supply current specification (60mA vs. 47mA) indicates the substitute part can draw more current under worst-case conditions. This is compatible with the original design as long as the power supply can deliver the required current. Actual operating current may be lower depending on application conditions.

Q: Are there any PCB layout considerations when substituting these parts?

A: The SXO53L3C271-125.000M has a slightly lower seated height (1.20mm vs. 1.30mm), which provides additional clearance in space-constrained designs. The identical footprint dimensions (5.00mm x 3.20mm) ensure PCB layout compatibility without modification.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant, classified as EAR99 for export control, and carry HTSUS code 8542.39.0001. Both are active production parts with no known end-of-life status.