DF3DZ-4P-2H(94) Equivalent & Substitute Parts

Part Overview

The DF3DZ-4P-2H(94) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for board-to-board or cable connections with a 4-position, single-row configuration at 2.00mm pitch. This part is classified as obsolete and no longer in active production. Due to its obsolete status, sourcing original inventory becomes increasingly difficult. The DF3EA-4P-2H(51) serves as the manufacturer-recommended substitute, offering equivalent electrical and mechanical functionality with active product status and improved availability.

Substiute Parts

DF3DZ-4P-2H(94)

Hirose Electric Co LtdIn Stock: 1044DF3DZ-4P-2H(94) Datasheet

Current PartRFQ

DF3EA-4P-2H(51)

Hirose Electric Co LtdIn Stock: 3001DF3EA-4P-2H(51) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The DF3EA-4P-2H(51) is designated as the manufacturer-recommended substitute based on the following critical parameters that determine functional equivalence:

Electrical Compatibility Parameters:

• Number of Positions: 4 (identical)
• Pitch - Mating: 0.079" (2.00mm) (identical)
• Number of Rows: 1 (identical)
• Voltage Rating: 250VAC
• Contact Type: Male Pin
• Fastening Type: Push-Pull

Mechanical Compatibility Parameters:

• Connector Type: Header
• Style: Board to Board or Cable
• Shrouding: Shrouded - 4 Wall
• Contact Shape: Circular
• Insulation Material: Polyamide (PA), Nylon

Environmental & Compliance Parameters:

• Operating Temperature: -55°C ~ 105°C
• Material Flammability Rating: UL94 V-0
• RoHS Status: RoHS Compliant

The primary difference is the mounting configuration: the DF3EA-4P-2H(51) is a Surface Mount, Right Angle variant with solder termination, whereas the original DF3DZ-4P-2H(94) uses through-hole mounting. This substitution is valid for applications where the PCB layout can accommodate right-angle surface mount orientation.

Parameter Comparison

Engineering Selection Recommendations

The DF3EA-4P-2H(51) is the appropriate substitute for the obsolete DF3DZ-4P-2H(94) based on the following factors:

Product Status: The DF3DZ-4P-2H(94) is obsolete with no active manufacturing. The DF3EA-4P-2H(51) maintains active product status with established supply chains and current inventory availability (2961 pcs in stock versus 939 pcs for the obsolete part).

Compliance & Certifications: The DF3EA-4P-2H(51) carries RoHS Compliance certification and UL94 V-0 flammability rating, meeting modern regulatory requirements. The MSL rating of 1 (Unlimited) provides superior moisture handling compared to the original part's Not Applicable designation.

Electrical & Mechanical Equivalence: Both parts maintain identical contact pitch (2.00mm), position count (4), and row configuration (1). The substitute retains the same connector type (Header), contact shape (Circular), and fastening mechanism (Push-Pull).

Design Consideration: The primary design change is the transition from through-hole to surface mount, right-angle configuration. PCB layout modifications are required to accommodate this mounting orientation. The solder termination of the DF3EA-4P-2H(51) provides improved mechanical reliability compared to traditional through-hole methods.

Frequently Asked Questions (FAQ)

Q: Can the DF3EA-4P-2H(51) directly replace the DF3DZ-4P-2H(94) without PCB modifications?

A: No. The DF3EA-4P-2H(51) is a surface mount, right-angle variant, while the original DF3DZ-4P-2H(94) uses through-hole mounting. PCB footprint and layout modifications are required. The connector orientation and solder pad configuration differ between the two variants.

Q: Are the electrical specifications identical between these two parts?

A: Yes, for the parameters specified by the manufacturer. Both parts operate at 250VAC, support 4-position, 2.00mm pitch configurations, and use identical contact materials (Brass with Gold plating). Operating temperature range (-55°C ~ 105°C) is specified for the substitute part.

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

A: The DF3EA-4P-2H(51) carries MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling. The original part's "Not Applicable" designation suggests it was not subjected to standard MSL testing protocols. The substitute offers superior environmental stability for long-term storage.

Q: Is the DF3EA-4P-2H(51) available in packaging other than Tape & Reel?

A: The provided data specifies Tape & Reel (TR) packaging for the DF3EA-4P-2H(51). Alternative packaging configurations may be available through the manufacturer; consult Hirose Electric Co Ltd directly for packaging options.

Q: Does the right-angle mounting affect the connector's mating height or board clearance?

A: The DF3EA-4P-2H(51) specifies an Insulation Height of 0.220" (5.60mm). Right-angle surface mount orientation requires vertical clearance above the PCB. Through-hole designs typically require clearance below the PCB. Verify available board space before design implementation.

Q: Are there any compliance or certification differences between the two parts?

A: Yes. The DF3EA-4P-2H(51) is RoHS Compliant with UL94 V-0 flammability certification and carries ECCN EAR99 classification. The original part is marked as OBSOLETE with ECCN OBSOLETE. Modern applications requiring RoHS compliance must use the substitute part.