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DF57-4S-1.2C(09) Equivalent & Substitute Parts
Part Overview
The DF57-4S-1.2C(09) is a 4-position rectangular connector receptacle housing manufactured by Hirose Electric Co Ltd with a 0.047" (1.20mm) pitch. This component is classified as obsolete, with 719 units currently in stock. Due to its obsolete status, identifying equivalent and substitute parts is essential for ongoing system maintenance, repair, and new design implementations where this connector type is required.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | DF57-4S-1.2C(09) |
| Manufacturer | Hirose Electric Co Ltd |
| Category | Rectangular Connectors |
| Connector Type | Receptacle |
| Contact Type | Female Socket |
| Number of Positions | 4 |
| Pitch | 0.047" (1.20mm) |
| Number of Rows | 1 |
| Mounting Type | Free Hanging (In-Line) |
| Contact Termination | Crimp |
| Fastening Type | Swing Lock |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the DF57-4S-1.2C(09) is determined by strict equivalence across the following critical parameters:
- Connector Type & Contact Configuration: Receptacle with female socket contacts
- Position Count & Pitch: 4 positions at 0.047" (1.20mm) spacing
- Mounting & Termination: Free hanging (in-line) mounting with crimp termination
- Fastening Mechanism: Swing lock fastening type
- Electrical & Environmental Ratings: MSL 1 (Unlimited) moisture sensitivity
The substitute part DF57H-4S-1.2C(08) maintains identical electrical and mechanical specifications across all critical parameters, with the primary distinction being its active product status and enhanced documentation support.
Parameter Comparison
| Parameter | DF57-4S-1.2C(09) (Main Part) | DF57H-4S-1.2C(08) (Substitute) |
|---|---|---|
| Manufacturer | Hirose Electric Co Ltd | Hirose Electric Co Ltd |
| Category | Rectangular Connectors | Rectangular Connectors |
| Connector Type | Receptacle | Receptacle |
| Contact Type | Female Socket | Female Socket |
| Number of Positions | 4 | 4 |
| Pitch | 0.047" (1.20mm) | 0.047" (1.20mm) |
| Number of Rows | 1 | 1 |
| Mounting Type | Free Hanging (In-Line) | Free Hanging (In-Line) |
| Contact Termination | Crimp | Crimp |
| Fastening Type | Swing Lock | Swing Lock |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
| Insulation Material | Not specified | Liquid Crystal Polymer (LCP) |
| Operating Temperature | Not specified | -35°C ~ 85°C |
| RoHS Status | Not specified | ROHS3 Compliant |
| REACH Status | Not specified | REACH Unaffected |
| Packaging | Not specified | Bulk |
| Inventory Status | 719 Pcs New Original In Stock | 2185 Pcs New Original In Stock |
Engineering Selection Recommendations
The DF57H-4S-1.2C(08) is the designated manufacturer-recommended substitute for the obsolete DF57-4S-1.2C(09). Selection of the substitute part is supported by:
- Product Status: The substitute maintains active product status with ongoing manufacturer support, whereas the main part is obsolete
- Regulatory Compliance: The substitute is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements
- Functional Equivalence: All critical electrical and mechanical parameters are identical, ensuring direct compatibility in existing applications
- Documentation & Support: The substitute part includes specified operating temperature range (-35°C ~ 85°C) and insulation material (Liquid Crystal Polymer), providing enhanced technical documentation
For new designs or system replacements, the DF57H-4S-1.2C(08) is the appropriate selection. For legacy system maintenance where the original part number must be retained, the DF57-4S-1.2C(09) remains available in current inventory.
Frequently Asked Questions (FAQ)
Q: Can the DF57H-4S-1.2C(08) be used as a direct replacement for the DF57-4S-1.2C(09)?
A: Yes. Both parts are 4-position receptacle housings with 0.047" (1.20mm) pitch, identical mounting type, crimp termination, and swing lock fastening. All critical electrical and mechanical parameters match, enabling direct substitution.
Q: What is the primary difference between these two parts?
A: The main difference is product status. The DF57-4S-1.2C(09) is obsolete, while the DF57H-4S-1.2C(08) is active. The substitute also includes documented operating temperature range and insulation material specifications, plus ROHS3 compliance and REACH unaffected status.
Q: Are there packaging differences between the main part and substitute?
A: The substitute part is supplied in bulk packaging, whereas the main part packaging is not specified. This may affect procurement and handling procedures but does not impact functional compatibility.
Q: Does the Liquid Crystal Polymer (LCP) insulation material of the substitute affect compatibility?
A: No. The insulation material is an internal component specification that does not affect the connector's electrical or mechanical interface characteristics. The substitute maintains full compatibility with mating connectors and termination methods.
Q: What is the MSL rating, and does it differ between parts?
A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Storage and handling requirements are identical for both parts.
Q: Are contacts included with either part?
A: No. Both the main part and substitute are connector housings only. Contacts must be procured separately and are not included.
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