DF57-2S-1.2C Equivalent & Substitute Parts

Part Overview

The DF57-2S-1.2C is a 2-position rectangular connector receptacle housing manufactured by Hirose Electric Co Ltd with a 0.047" (1.20mm) pitch. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The connector features a swing lock fastening mechanism, white color, and crimp contact termination for free-hanging in-line mounting applications.

Substiute Parts

DF57-2S-1.2C

Hirose Electric Co LtdIn Stock: 1189DF57-2S-1.2C Datasheet

Current PartRFQ

DF57H-2S-1.2C

Hirose Electric Co LtdIn Stock: 8619DF57H-2S-1.2C Datasheet

MFR RecommendedRFQ

0510210200

MolexIn Stock: 4788480510210200 Datasheet

MFR RecommendedRFQ

0874390200

MolexIn Stock: 299050874390200 Datasheet

MFR RecommendedRFQ

M40-1100200

Harwin Inc.In Stock: 5826M40-1100200 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DF57-2S-1.2C is determined by the following critical parameters: connector type (receptacle), contact type (female socket), number of positions (2), pitch specification, number of rows (1), mounting type (free hanging in-line), and contact termination method (crimp). The fastening mechanism, color, and insulation material may vary between substitutes while maintaining functional compatibility.

The substitute parts are grouped as follows:

Primary Equivalent (Same Pitch): DF57H-2S-1.2C maintains identical pitch (0.047" / 1.20mm) and represents the active production equivalent from the same manufacturer series.

Alternative Pitch Substitutes: Parts with different pitch specifications (0.039", 0.049", 0.059") are listed as alternatives where mechanical and electrical compatibility with mating components permits pitch variation.

Parameter Comparison

Engineering Selection Recommendations

DF57H-2S-1.2C is the recommended primary substitute. It maintains identical pitch (0.047" / 1.20mm) and mechanical form factor as the obsolete DF57-2S-1.2C while offering active product status, RoHS compliance, and REACH unaffected certification. This part provides direct functional equivalence with no design modification required.

M40-1100200, 0510210200, and 0874390200 are alternative substitutes applicable only when the mating connector accommodates pitch variation. These parts maintain receptacle configuration, 2-position count, female socket contact type, crimp termination, and free-hanging in-line mounting. Each alternative carries active product status and full compliance certifications (ROHS3 Compliant, REACH Unaffected).

Selection between alternative substitutes depends on system-level pitch compatibility and operating temperature requirements. The 0874390200 (Pico-SPOX 87439) offers the widest operating temperature range (-55°C ~ 105°C), while M40-1100200 operates within -25°C ~ 85°C and 0510210200 within -40°C ~ 105°C.

Frequently Asked Questions (FAQ)

Q: Can DF57H-2S-1.2C directly replace DF57-2S-1.2C without design changes?

A: Yes. DF57H-2S-1.2C maintains identical pitch (0.047" / 1.20mm), connector type (receptacle), contact type (female socket), number of positions (2), mounting type (free hanging in-line), and contact termination (crimp). No design modification is required.

Q: What determines compatibility with the alternative pitch substitutes?

A: Compatibility depends on whether the mating connector (plug) accommodates the different pitch specification. M40-1100200 uses 0.039" (1.00mm) pitch, 0510210200 uses 0.049" (1.25mm) pitch, and 0874390200 uses 0.059" (1.50mm) pitch. The mating connector must support the substitute pitch for successful pairing.

Q: Are all substitute parts RoHS and REACH compliant?

A: DF57H-2S-1.2C is RoHS Compliant and REACH Unaffected. M40-1100200, 0510210200, and 0874390200 are all ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements.

Q: What is the difference in fastening mechanisms between substitutes?

A: DF57-2S-1.2C and DF57H-2S-1.2C use swing lock fastening. M40-1100200 does not specify a fastening type. 0510210200 uses friction lock fastening, and 0874390200 uses locking ramp fastening. Fastening mechanism differences do not affect electrical compatibility but may impact mechanical assembly procedures.

Q: Do all substitutes include contacts?

A: No. All listed parts (DF57-2S-1.2C, DF57H-2S-1.2C, M40-1100200, 0510210200, and 0874390200) are connector housings only. Contacts must be procured separately and must match the pitch and contact type specifications of the selected housing.