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MOLEX / WALDOM 559090274 SlimStack Board-to-Board Connector

The MOLEX / WALDOM 55909-0274 SlimStack connector is a compact board-to-board solution designed for applications requiring minimal space and high signal density. With a 0.40mm pitch and surface mount capability, it enables efficient routing and integration in various electronic devices. The connector features a dual-row configuration, vertical stacking, and a 1.50mm stacking height, making it suitable for applications in consumer electronics, industrial automation, and telecommunications equipment. It offers a robust connection with gold-plated mating and termination interfaces, ensuring reliable signal transmission and long-term performance.

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Source:Newark
Part No:55909-0274
Stock:158
Inv Date:06-17-2026
Price: Unit price: $1.97
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Part No:55909-0274
Stock:2960
Inv Date:06-18-2026
Price: Unit price: $1.79
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Part No:55909-0274
Stock:0
Inv Date:06-17-2026
Price: Unit price: $2.13
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Part No:55909-0274
Stock:60274
Inv Date:06-17-2026
Price: Unit price: $1.09
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Part No:55909-0274
Stock:1875
Inv Date:06-17-2026
Price: Unit price: $1.0473
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Part No:55909-0274
Stock:60274
Inv Date:06-17-2026
Price: Unit price: $1.09
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MOLEX / WALDOM 559090274 SlimStack Board-to-Board Connector Specifications:

  • pitch_mating_interface: 0.40mm
  • stackable: No
  • operating_temperature_range: -25°C to +85°C
  • termination_interface_style: Surface Mount
  • current_max_per_contact: 0.3A
  • voltage_max: 50V AC (RMS)/DC
  • material_plating_mating: Gold
  • material_plating_termination: Gold
  • material_metal: Brass
  • number_of_rows: 2
  • orientation: Vertical
  • circuit_count_max: 20
  • circuit_count_loaded: 20
  • mating_cycles_max: 30
  • first_mate_last_break: No
  • glow_wire_compliant: No
  • keying_to_mating_part: None
  • lock_to_mating_part: Yes
  • mated_height: 1.50mm
  • net_weight: 23.630/mg
  • pcb_locator: No
  • pcb_retention: Yes
  • packaging_type: Embossed Tape on Reel
  • color_resin: Black
  • halogen_free_status: Low-Halogen
  • reach_svhc: Not Contained
  • elv_compliance: Not Relevant
  • rohs_compliance: Compliant
  • china_rohs_compliance: Green Image
  • phthalates_compliance: Not Contained

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Frequently Asked Questions

Where can I buy MOLEX / WALDOM 559090274?

You can click on the BUY or RFQ button to purchase 559090274 from an authorized MOLEX / WALDOM distributor.

How do I troubleshoot issues or seek technical support for part 559090274?

You can download the 559090274 datasheet or visit the MOLEX / WALDOM website for support.

Who is the manufacturer of 559090274?

MOLEX / WALDOM

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