SFM-120-L3-S-D-LC Equivalent & Substitute Parts

Part Overview

The SFM-120-L3-S-D-LC is a 40-position receptacle connector from Samtec Inc.'s Tiger Eye™ SFM series, designed for board-to-board or cable applications. This through-hole mounted connector features 0.050" (1.27mm) pitch contacts with gold mating finish and push-pull fastening. The part is currently active in production with 821 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when inventory requirements necessitate alternative stock sources.

Substiute Parts

SFM-120-L3-S-D-LC

Samtec Inc.In Stock: 851SFM-120-L3-S-D-LC Datasheet

Current PartRFQ

SFM-120-03-S-D-LC

Samtec Inc.In Stock: 1052SFM-120-03-S-D-LC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SFM-120-L3-S-D-LC is determined by strict equivalence across the following critical parameters:

• Manufacturer: Samtec Inc.
• Series: Tiger Eye™ SFM
• Connector Type: Receptacle
• Number of Positions: 40
• Pitch - Mating: 0.050" (1.27mm)
• Number of Rows: 2
• Mounting Type: Through Hole
• Contact Finish - Mating: Gold
• Operating Temperature Range: -55°C ~ 125°C
• Current Rating: 3.2A per Contact
• Voltage Rating: 250VAC

The substitute part SFM-120-03-S-D-LC meets all critical electrical and mechanical parameters required for direct substitution. Both parts share identical connector architecture, contact configuration, and performance specifications within the Tiger Eye™ SFM product line.

Parameter Comparison

Engineering Selection Recommendations

Both SFM-120-L3-S-D-LC and SFM-120-03-S-D-LC are active production parts with full ROHS3 compliance. The parts are electrically and mechanically equivalent across all specified parameters. Selection between these part numbers should be based on inventory availability and supply chain requirements. The SFM-120-03-S-D-LC currently maintains higher inventory levels at 1019 units compared to 821 units for the SFM-120-L3-S-D-LC, making it a viable alternative for applications requiring immediate availability.

Frequently Asked Questions (FAQ)

Q: Can SFM-120-03-S-D-LC be used as a direct replacement for SFM-120-L3-S-D-LC?

A: Yes. Both connectors are functionally equivalent 40-position receptacles from the Tiger Eye™ SFM series with identical electrical ratings, mechanical dimensions, and contact specifications. They are interchangeable in applications requiring 0.050" pitch, 250VAC, 3.2A per contact rated connectors.

Q: What is the difference between these two part numbers?

A: The part numbers differ in their internal designation codes (L3 versus 03), but all critical specifications including connector type, position count, pitch, contact finish, operating temperature range, and current/voltage ratings are identical. Both parts are manufactured by Samtec Inc. and belong to the same product series.

Q: Are there any packaging or lead time differences?

A: Both parts are supplied in tube packaging. The SFM-120-03-S-D-LC has higher current inventory availability at 1019 units versus 821 units for the SFM-120-L3-S-D-LC.

Q: Do these connectors meet RoHS requirements?

A: Yes. Both SFM-120-L3-S-D-LC and SFM-120-03-S-D-LC are ROHS3 compliant.

Q: What are the mated stacking height options?

A: Both connectors support the following mated stacking heights: 6.02mm, 6.17mm, 7.80mm, 7.95mm, 9.58mm, 9.73mm, 11.48mm, and 11.63mm.