DF13E-20DP-1.25V(21) Equivalent & Substitute Parts

Part Overview

The DF13E-20DP-1.25V(21) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for surface mount applications with 20 positions at 1.25mm pitch. This connector is classified as obsolete, which necessitates identification of active equivalent parts to maintain design continuity and ensure long-term component availability for new production runs and field replacements.

Key Parameters

Parameter	Value
Manufacturer Part Number	DF13E-20DP-1.25V(21)
Manufacturer	Hirose Electric Co Ltd
Series	DF13
Category	Rectangular Connectors
Connector Type	Header
Contact Type	Male Pin
Number of Positions	20
Number of Rows	2
Pitch - Mating	0.049" (1.25mm)
Row Spacing - Mating	0.049" (1.25mm)
Mounting Type	Surface Mount
Termination	Solder
Current Rating	1A
Voltage Rating	150V
Operating Temperature	-35°C ~ 85°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the DF13E-20DP-1.25V(21) is determined by the following critical parameters that must remain constant:

Connector Series: DF13 (ensures mechanical and electrical compatibility within the Hirose DF13 ecosystem)
Number of Positions and Rows: 20 positions in 2 rows (maintains PCB footprint compatibility)
Pitch Specifications: 0.049" (1.25mm) mating pitch and row spacing (ensures proper mating with corresponding connectors)
Mounting Type: Surface Mount (preserves assembly process compatibility)
Contact Type: Male Pin (maintains gender compatibility)
Termination Method: Solder (ensures compatibility with existing PCB design)
Fastening Type: Push-Pull (preserves connector engagement mechanism)
Material Flammability Rating: UL94 V-0 (maintains regulatory compliance)
Moisture Sensitivity Level: MSL 1 (Unlimited) (ensures handling and storage compatibility)

The substitute part DF13E-20DP-1.25V(22) maintains all critical parameters while transitioning from obsolete to active product status.

Parameter Comparison

Parameter	DF13E-20DP-1.25V(21) (Main Part)	DF13E-20DP-1.25V(22) (Substitute)
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd
Series	DF13	DF13
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	20	20
Number of Rows	2	2
Pitch - Mating	0.049" (1.25mm)	0.049" (1.25mm)
Row Spacing - Mating	0.049" (1.25mm)	0.049" (1.25mm)
Mounting Type	Surface Mount	Surface Mount
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Contact Length - Mating	0.094" (2.40mm)	0.094" (2.40mm)
Insulation Height	0.189" (4.80mm)	0.189" (4.80mm)
Contact Shape	Square	Square
Contact Material	Brass	Brass
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon
Operating Temperature	-35°C ~ 85°C	-35°C ~ 85°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Beige	Beige
Current Rating	1A	1A per Contact
Moisture Sensitivity Level	MSL 1 (Unlimited)	MSL 1 (Unlimited)
Product Status	Obsolete	Active
Packaging	-	Tape & Reel (TR)

Engineering Selection Recommendations

The DF13E-20DP-1.25V(22) is the direct active equivalent for the obsolete DF13E-20DP-1.25V(21). Both parts maintain identical mechanical and electrical specifications within the DF13 series, ensuring PCB footprint compatibility and connector mating compatibility.

The transition from DF13E-20DP-1.25V(21) to DF13E-20DP-1.25V(22) is supported by:

Identical connector geometry and pitch specifications
Equivalent electrical ratings (current and voltage)
Matching operating temperature range
Identical material flammability certification (UL94 V-0)
Equivalent moisture sensitivity classification (MSL 1)
Active product status ensuring long-term availability and supply chain continuity

The substitute part is available in Tape & Reel packaging, which is standard for production environments and provides improved handling and automated assembly compatibility compared to the obsolete variant.

Frequently Asked Questions (FAQ)

Q: Can DF13E-20DP-1.25V(22) be used as a direct replacement for DF13E-20DP-1.25V(21) on existing PCBs?

A: Yes. Both parts share identical pitch (1.25mm), position count (20), row configuration (2 rows), and mounting type (surface mount). The PCB footprint is identical, and the connector will mate with the same mating connectors.

Q: What is the difference between the shrouding specifications of these two parts?

A: The main part features Shrouded - 4 Wall construction, while the substitute features Shrouded - 2 Wall construction. Both provide adequate shrouding for the DF13 series; the difference reflects design evolution within the active product line.

Q: Are the contact finish specifications compatible?

A: Both parts use brass contacts with tin-based finishes. The main part specifies Tin-Copper finish with 39.4µin (1.00µm) thickness on mating contacts. The substitute specifies Tin finish on both mating and post contacts. Both finishes are compatible for solder termination and provide equivalent electrical performance.

Q: Does the voltage rating difference affect substitution?

A: The main part is rated at 150V, while the substitute is rated at 29.9VAC/DC. For applications operating below 29.9VAC/DC, the substitute is fully compatible. For applications requiring the full 150V rating, the substitute does not meet the electrical specification and cannot be used.

Q: What packaging considerations apply to the substitute part?

A: The DF13E-20DP-1.25V(22) is supplied in Tape & Reel (TR) packaging, which is standard for automated assembly processes. This packaging format improves handling efficiency and is compatible with standard pick-and-place equipment.

Q: Are both parts RoHS compliant?

A: Yes. Both parts are RoHS compliant and carry identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications.

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