125SH-C-02-TR Equivalent & Substitute Parts

Part Overview

The 125SH-C-02-TR is a rectangular connector header manufactured by Adam Tech, designed for through-hole, right-angle board-to-cable/wire applications with 2 positions at 0.049" (1.25mm) pitch. This connector features shrouded 4-wall construction with solder termination and friction lock fastening. The part is currently obsolete, making identification of compatible substitutes essential for ongoing system support and component procurement.

Substiute Parts

125SH-C-02-TR

Adam TechIn Stock: 922125SH-C-02-TR Datasheet

Current PartRFQ

125SH-A-02-TR

Adam TechIn Stock: 2117125SH-A-02-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The 125SH-A-02-TR qualifies as a direct substitute for the 125SH-C-02-TR based on the following critical parameters:

Matching Parameters:

• Pitch - Mating: 0.049" (1.25mm)
• Number of Positions: 2
• Number of Rows: 1
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole, Right Angle
• Termination: Solder
• Fastening Type: Friction Lock
• Current Rating: 1A
• Operating Temperature: -25°C ~ 85°C
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

Differences:

• Voltage Rating: 100VAC (main part) vs. 250VAC (substitute)
• Insulation Material: Thermoplastic, Glass Filled vs. Polyamide (PA46), Nylon 4/6
• Insulation Color: Ivory vs. Black
• Contact Length - Mating: Not specified vs. 0.098" (2.50mm)
• Contact Length - Post: 0.091" (2.30mm) vs. 0.087" (2.20mm)
• Insulation Height: 0.142" (3.60mm) vs. 0.130" (3.30mm)
• Product Status: Obsolete vs. Active

The substitute maintains all critical electrical and mechanical compatibility parameters while offering enhanced voltage rating capability and active product status.

Parameter Comparison

Engineering Selection Recommendations

The 125SH-A-02-TR is the appropriate substitute for the obsolete 125SH-C-02-TR. Both connectors maintain identical electrical and mechanical specifications for mating pitch, position count, current capacity, and operating temperature range. The substitute offers superior voltage rating (250VAC vs. 100VAC), providing additional design margin for applications operating at or near the original specification limits.

The substitute's active product status ensures ongoing availability and supply chain continuity. Both parts maintain equivalent RoHS3 compliance and UL94 V-0 flammability certification, satisfying regulatory requirements for equivalent applications.

Minor dimensional variations in contact length and insulation height fall within acceptable tolerances for through-hole mounting applications and do not affect functional compatibility in standard board-to-cable/wire configurations.

Frequently Asked Questions (FAQ)

Q: Can the 125SH-A-02-TR directly replace the 125SH-C-02-TR in existing designs?

A: Yes. Both connectors share identical mating pitch (0.049"), position count (2), contact type (male pin), mounting method (through-hole right-angle), and termination (solder). The substitute maintains all critical electrical parameters including current rating (1A) and operating temperature range (-25°C ~ 85°C).

Q: What is the significance of the voltage rating difference?

A: The substitute provides 250VAC rating compared to the original 100VAC specification. This represents an increase in voltage capability and does not create compatibility issues for applications designed for the original 100VAC rating.

Q: Are there packaging differences between these parts?

A: The main part packaging is not specified. The substitute is supplied in bulk packaging. Verify packaging requirements for your procurement process.

Q: Do both connectors meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry UL94 V-0 flammability certification. Moisture sensitivity level is identical (MSL 1 - Unlimited) for both.

Q: Why is the original part obsolete?

A: The 125SH-C-02-TR is listed as obsolete. The 125SH-A-02-TR maintains the same functional specifications while offering active product status and improved availability.

Q: Are there dimensional considerations for PCB layout?

A: Minor differences exist in contact length and insulation height. The substitute's contact length post is 0.087" (2.20mm) versus the original 0.091" (2.30mm), and insulation height is 0.130" (3.30mm) versus 0.142" (3.60mm). These variations are within standard manufacturing tolerances for through-hole applications and do not affect standard board-to-cable/wire interconnect designs.