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MOLEX 39281203B Mini-Fit Jr. Power Connector

The MOLEX 39-28-1203B Mini-Fit Jr. header is a robust and reliable connector solution for power and wire-to-board applications. This header features 20 circuits arranged in a dual-row configuration with a vertical orientation. Constructed with a PA Nylon 6/6 resin and tin plating, it offers excellent durability and corrosion resistance. Designed for use with standard MiniFit female terminals, this header is ideal for applications requiring up to 13A per circuit. Refer to Molex Product specification PS-5666-001 for current de-rating information.

Authorized Distributors
Source:Newark
Part No:39-28-1203B
Stock:3826
Inv Date:05-29-2026
Price: Unit price: $1.41
Buy/RFQ:

MOLEX 39281203B Mini-Fit Jr. Power Connector Specifications:

  • overview: Mini-Fit Jr.™ Power Connectors
  • application: Power, Wire-to-Board
  • circuits_loaded: 20
  • circuits_maximum: 20
  • color_resin: Natural
  • durability_mating_cycles: 30
  • flammability: 94V-2
  • glow_wire_compliant: No
  • material_metal: Brass
  • material_plating_mating: Tin
  • material_plating_termination: Tin
  • material_resin: Nylon 6/6
  • number_of_rows: 2
  • orientation: Vertical
  • pc_tail_length: 3.50mm
  • pcb_locator: Yes
  • pcb_retention: None
  • pcb_thickness_recommended: 1.60mm
  • packaging_type: Bag
  • pitch_mating_interface: 4.20mm
  • pitch_termination_interface: 4.20mm
  • current_maximum_per_contact: 9.0A
  • voltage_maximum: 600V
  • duration_at_max_process_temperature: 5
  • lead_free_process_capability: Wave Capable (TH only)
  • max_cycles_at_max_process_temperature: 1
  • process_temperature_max_c: 260
  • polarized_to_mating_part: Yes
  • polarized_to_pcb: Yes
  • shrouded: Fully
  • stackable: No
  • surface_mount_compatible: No
  • temperature_range_operating: -40°C to +105°C
  • termination_interface_style: Through Hole
  • old_part_number: 5566-20A

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Frequently Asked Questions

Where can I buy MOLEX 39281203B?

You can click on the BUY or RFQ button to purchase 39281203B from an authorized MOLEX distributor.

How do I troubleshoot issues or seek technical support for part 39281203B?

You can download the 39281203B datasheet or visit the MOLEX website for support.

Who is the manufacturer of 39281203B?

MOLEX

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