SOLC-135-02-L-Q Equivalent & Substitute Parts

Part Overview

The SOLC-135-02-L-Q is a 140-position receptacle connector from Samtec Inc.'s FOURRAY™ SOLC series, designed for board-to-board applications with 0.050" (1.27mm) pitch surface mount configuration. This connector features forked contacts with gold plating and solder termination, operating across -55°C to 125°C. The part is Active status and ROHS3 compliant with MSL 1 rating. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector family, enabling design flexibility and supply chain optimization.

Substiute Parts

SOLC-135-02-L-Q

Samtec Inc.In Stock: 1100SOLC-135-02-L-Q Datasheet

Current PartRFQ

SOLC-135-02-L-Q-A

Samtec Inc.In Stock: 969SOLC-135-02-L-Q-A Datasheet

SimilarRFQ

SOLC-135-02-L-Q-LC

Samtec Inc.In Stock: 1475SOLC-135-02-L-Q-LC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SOLC-135-02-L-Q are identified within the FOURRAY™ SOLC series based on strict equivalence of core electrical and mechanical parameters. The substitution criteria are:

• Identical connector type (Receptacle)
• Identical number of positions (140)
• Identical pitch configuration (0.050" mating pitch, 0.050" row spacing)
• Identical number of rows (4)
• Identical mounting type (Surface Mount)
• Identical termination method (Solder)
• Identical current rating (2.4A per Contact)
• Identical operating temperature range (-55°C ~ 125°C)
• Identical contact finish (Gold)
• Identical insulation material (Liquid Crystal Polymer)
• Identical flammability rating (UL94 V-0)
• Identical RoHS compliance (ROHS3)
• Identical MSL rating (1)

Variations in fastening features (Board Guide, Board Lock) do not affect electrical or core mechanical compatibility and are permitted within the substitute group.

Parameter Comparison

Engineering Selection Recommendations

All three parts—SOLC-135-02-L-Q, SOLC-135-02-L-Q-A, and SOLC-135-02-L-Q-LC—maintain Active product status and full ROHS3 compliance with identical electrical and mechanical specifications. Selection between these parts is determined by mechanical fastening requirements:

• SOLC-135-02-L-Q: Standard configuration without additional fastening features
• SOLC-135-02-L-Q-A: Includes Board Guide feature for enhanced alignment during mating
• SOLC-135-02-L-Q-LC: Includes Board Lock feature for positive mechanical retention

All parts are suitable for applications requiring 140-position board-to-board connectivity at 0.050" pitch with 2.4A per contact current capacity across the -55°C to 125°C operating range. Part selection should be based on PCB design requirements for mechanical guidance or locking mechanisms.

Frequently Asked Questions (FAQ)

Q: Are SOLC-135-02-L-Q, SOLC-135-02-L-Q-A, and SOLC-135-02-L-Q-LC electrically interchangeable?

A: Yes. All three parts share identical electrical specifications including 140 positions, 0.050" pitch, 2.4A per contact current rating, gold contact finish, and operating temperature range of -55°C to 125°C.

Q: What is the difference between the Board Guide and Board Lock features?

A: Board Guide (SOLC-135-02-L-Q-A) provides alignment assistance during connector mating. Board Lock (SOLC-135-02-L-Q-LC) provides positive mechanical retention after mating. The standard SOLC-135-02-L-Q offers neither feature.

Q: Can I substitute SOLC-135-02-L-Q-LC for SOLC-135-02-L-Q in an existing design?

A: Substitution is possible from an electrical standpoint. However, the Board Lock feature on SOLC-135-02-L-Q-LC may require PCB design modifications to accommodate the locking mechanism. Verify mechanical compatibility with your PCB layout.

Q: Are all three parts ROHS3 compliant?

A: Yes. SOLC-135-02-L-Q, SOLC-135-02-L-Q-A, and SOLC-135-02-L-Q-LC are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the contact material for these connectors?

A: All three parts use Phosphor Bronze contacts with 10.0µin (0.25µm) gold plating on the mating surface and 3.00µin (0.076µm) gold plating on the post.

Q: Are these connectors suitable for high-temperature applications?

A: Yes. All three parts operate across -55°C to 125°C and carry UL94 V-0 flammability rating, suitable for industrial and aerospace applications within this temperature range.