Equivalent & Substitute Parts: DF12B(3.5)-20DP-0.5V(86)

Part Overview

The DF12B(3.5)-20DP-0.5V(86) is a 20-position rectangular connector header manufactured by Hirose Electric Co Ltd, designed for surface mount applications with outer shroud contacts and gold-plated finish. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The substitute part maintains identical electrical and mechanical specifications while offering improved availability and current product status.

Substiute Parts

DF12B(3.5)-20DP-0.5V(86)

Hirose Electric Co LtdIn Stock: 1015DF12B(3.5)-20DP-0.5V(86) Datasheet

Current PartRFQ

DF12NB(3.5)-20DP-0.5V(51)

Hirose Electric Co LtdIn Stock: 5740DF12NB(3.5)-20DP-0.5V(51) Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The DF12NB(3.5)-20DP-0.5V(51) qualifies as a parametric equivalent based on the following critical substitution criteria:

Electrical Parameters (Identical):

• 20-position connector configuration
• 0.020" (0.50mm) pitch spacing
• 2-row arrangement
• Gold contact finish with 8.00µin thickness
• Solder retention feature

Mechanical Parameters (Identical):

• 3.5mm mated stacking height
• 0.110" (2.80mm) height above board
• Surface mount mounting type
• Outer shroud contact design

Compliance Parameters (Equivalent or Superior):

• RoHS3 Compliant (upgraded from RoHS Compliant)
• REACH Unaffected status
• MSL 1 (Unlimited) rating maintained

The primary distinction is product status: the original part is obsolete, while the substitute is active production, with improved packaging (Tape & Reel) and significantly higher inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The DF12NB(3.5)-20DP-0.5V(51) is the direct substitute for the obsolete DF12B(3.5)-20DP-0.5V(86). Selection of the substitute part is based on:

1. Product Status: The substitute is active production, ensuring long-term availability and supply chain continuity.

2. Compliance Enhancement: RoHS3 compliance provides alignment with current regulatory requirements, superseding the original RoHS Compliant designation.

3. Electrical and Mechanical Equivalence: All critical parameters—position count, pitch, stacking height, contact finish, and mounting configuration—are identical, ensuring direct PCB layout and assembly compatibility.

4. Packaging and Availability: Tape & Reel packaging and substantially higher inventory (5647 units versus 982 units) support efficient production workflows and reduced lead times.

5. Regulatory Status: REACH Unaffected designation confirms compliance with chemical substance regulations.

Frequently Asked Questions (FAQ)

Q: Can the DF12NB(3.5)-20DP-0.5V(51) be used as a direct replacement on existing PCB designs?

A: Yes. The substitute part maintains identical pitch (0.020"), position count (20), stacking height (3.5mm), and mounting type (surface mount). No PCB layout modifications are required.

Q: What is the significance of the "NB" designation in the substitute part number?

A: The "NB" designation indicates a design variant within the DF12 series. Both parts belong to the same connector family and maintain equivalent electrical and mechanical specifications for the 20-position, 0.50mm pitch configuration.

Q: Are there any compliance differences between the original and substitute parts?

A: The substitute part carries RoHS3 Compliant status compared to RoHS Compliant for the original. RoHS3 represents current regulatory compliance. Both parts maintain MSL 1 (Unlimited) rating and are suitable for unrestricted moisture environments.

Q: How does packaging affect component selection?

A: The substitute is supplied in Tape & Reel (TR) format, which is standard for automated assembly processes. This packaging format improves handling efficiency and reduces component damage during manufacturing compared to bulk packaging.

Q: Is the gold contact finish specification identical?

A: Yes. Both parts specify 8.00µin (0.203µm) gold contact finish thickness, ensuring equivalent electrical performance and corrosion resistance.

Q: What inventory considerations should influence the selection decision?

A: The substitute part has significantly higher inventory availability (5647 units versus 982 units), reducing procurement lead times and supporting larger production volumes without supply constraints.