TE Connectivity AMP Connectors 1825109-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1825109-3 is a 40-position DIP socket with 0.6" row spacing, gold-plated contacts, and through-hole solder termination. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The Diplomate DL series socket is designed for IC and transistor applications requiring reliable contact performance across industrial temperature ranges.

Substiute Parts

1825109-3

TE Connectivity AMP ConnectorsIn Stock: 7381825109-3 Datasheet

Current PartRFQ

110-41-640-41-001000

Mill-Max Manufacturing Corp.In Stock: 1259110-41-640-41-001000 Datasheet

SimilarRFQ

A 40-LC-TT

Assmann WSW ComponentsIn Stock: 1064A 40-LC-TT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1825109-3 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 40 (2 x 20)
• Type: DIP with 0.6" (15.24mm) Row Spacing
• Pitch - Mating: 0.100" (2.54mm)
• Pitch - Post: 0.100" (2.54mm)
• Mounting Type: Through Hole
• Termination: Solder

Allowable Variation Parameters:

• Contact Finish - Mating: Gold or Tin acceptable
• Contact Material - Mating: Phosphor Bronze or Beryllium Copper acceptable
• Contact Material - Post: Phosphor Bronze or Brass Alloy acceptable
• Contact Finish - Post: Gold or Tin acceptable
• Housing Material: Thermoplastic variants acceptable
• Operating Temperature: Minimum -55°C to +125°C or higher acceptable
• RoHS Status: ROHS3 Compliant required

The substitute parts listed below meet all mandatory parameters and operate within the specified electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

110-41-640-41-001000 (Mill-Max Manufacturing Corp.)

This substitute maintains full electrical and mechanical compatibility with the 1825109-3. Both parts operate across the identical temperature range (-55°C to 125°C) and meet ROHS3 compliance requirements. The Mill-Max part features beryllium copper mating contacts with gold finish and brass alloy posts with tin finish. Post length variation of 0.003" (0.06mm) is within acceptable tolerance for standard through-hole PCB applications. This part is currently in active production status with 1249 units in stock.

A 40-LC-TT (Assmann WSW Components)

This substitute provides mechanical and electrical compatibility with the 1825109-3 for applications operating within the -55°C to 85°C temperature range. The Assmann part uses phosphor bronze contacts with tin finish on both mating and post surfaces, matching the contact material of the original part. Post length variation of 0.004" (0.09mm) is within acceptable tolerance. This part is currently in active production status with 1047 units in stock. Applications requiring operation above 85°C should use the Mill-Max alternative.

Frequently Asked Questions (FAQ)

Q: Can the 110-41-640-41-001000 be used as a direct replacement for the 1825109-3?

A: Yes. Both parts share identical 40-position DIP configuration, 0.6" row spacing, 0.100" pitch specifications, and through-hole solder termination. Operating temperature ranges are identical (-55°C to 125°C). Post length difference of 0.003" is within standard PCB tolerance. ROHS3 compliance is maintained.

Q: What is the difference between gold and tin contact finishes?

A: The 1825109-3 features gold-plated mating contacts (15.0µin thickness) and gold-plated posts. The 110-41-640-41-001000 has gold-plated mating contacts (10.0µin thickness) but tin-plated posts (200.0µin thickness). The A 40-LC-TT has tin-plated contacts on both mating and post surfaces. Gold provides superior corrosion resistance; tin offers cost efficiency. Both finishes are acceptable for standard IC socket applications.

Q: Are there temperature limitations when selecting a substitute?

A: The 1825109-3 and 110-41-640-41-001000 both operate from -55°C to 125°C. The A 40-LC-TT operates from -55°C to 85°C. For applications requiring operation above 85°C, use either the original part or the Mill-Max 110-41-640-41-001000 substitute.

Q: What is the significance of contact material differences?

A: The 1825109-3 uses phosphor bronze for both mating and post contacts. The 110-41-640-41-001000 uses beryllium copper for mating contacts and brass alloy for posts. The A 40-LC-TT uses phosphor bronze for both. All three materials provide acceptable electrical performance for IC socket applications. Contact resistance specifications are provided for the original and Assmann parts (30mOhm); the Mill-Max specification is not provided.

Q: How do post length variations affect PCB compatibility?

A: Post lengths vary slightly: 1825109-3 at 0.128", 110-41-640-41-001000 at 0.125", and A 40-LC-TT at 0.124". These variations of 0.003" to 0.004" are within standard PCB through-hole tolerance and do not affect solder joint quality or mechanical stability in typical applications.

Q: What packaging formats are available?

A: The 1825109-3 packaging format is not specified in available data. The 110-41-640-41-001000 is supplied in tube packaging. The A 40-LC-TT is supplied in tube packaging. Verify packaging requirements with your procurement specifications.

Q: Are all substitute parts RoHS compliant?

A: Yes. The 1825109-3, 110-41-640-41-001000, and A 40-LC-TT are all ROHS3 compliant. REACH status is vendor undefined for the original part, unaffected for both substitutes.