| Attribute | Value |
|---|---|
| Product Category: | |
| Manufacturer: | Molex |
| Manufacturer Part Number: | Molex 55909-0774 |
| Color: | Black |
| Series: | 55909 |
| Amperage: | .3 A |
| Connector Type: | SlimStack |
| Number of Contacts: | 70 |
| Number of Rows: | 2 |
| Termination Method: | Surface Mount |
| Contact Material: | Brass |
| Body Orientation: | Straight |
| Pitch: | 4 mm |
| Voltage: | 50 V AC/DC |
| Orientation: | Vertical |
| Keying: | No |
| Operating Temperature Range: | -25 - 85 °C |
| Contact Mating Area Plating: | Gold |
| Number of Contacts Loaded: | 70 |
| Mating Cycles: | 30 |
| PCB Locator: | No |
| PCB Retention: | Yes |
| Connector System: | Board to Board |
| Contact Termination Plating: | Gold |
| Glow Wire Capable: | No |
| Lock to Mating Part: | Yes |
| Mated Height: | 1.5 mm, 1.8 mm |
| Mated Width: | 3.4 mm, 4.2 mm |
| Breakaway: | No |
| Make First / Break Last: | No |
| Product Name: | SlimStack |
| Part Aliases: | 0559090774 |
| SKU: | MOL55909-0774 |
55909-0774
| Heilind Number: | MOL55909-0774 |
| Manufacturer: | Molex |
| Manufacturer Number: | 55909-0774 |
| Datasheet: | RoHS Certificate of Compliance |
| ECAD Model: |
Description:
0.40mm Pitch Board-to-Board SlimStack Plug, Surface Mount, Dual Row, Vertical Stacking, 1.50mm Stacking Height, 70 Circuits
More >>Specifications
Detailed Description
Enhance connectivity in your electronic devices with our SlimStack 55909 series board-to-board connector. Featuring a sleek black design, this connector is meticulously engineered for optimal performance, with a slim .4mm pitch and 70 gold-plated contacts for reliable data transmission. The surface mount termination method ensures easy installation, while the brass contact material and gold plating guarantee durability and signal integrity. With a voltage rating of 50V AC/DC and an operating temperature range of -25 to 85°C, this connector is suitable for a wide range of applications. Its compact vertical orientation and mated height of 1.5mm make it ideal for space-constrained designs, and the integrated PCB retention and locking features provide added security. RoHS compliant and meticulously tested for quality, the SlimStack connector is a trusted solution for demanding electronics projects.
Product Change Notice
| Effective Date | Description of Change | Download | |||
|---|---|---|---|---|---|
| 06/15/2026 | 517485 - Production Transfer. Production location change of 55909 series from Korea to Vietnam. No change in product design and process. | Download | |||
| 11/30/2025 | 517506 - Retraction of PCN 512320. This PCN is issued to retract the previously issued PCN512320 - production location change of 51338 series ,then replace by new PCN 517485. | Download | |||
| 02/01/2023 | 512323 - Equipment Transfer, Production Transfer or Rearrangement. Production plant location change - Current : Molex Korea - After : Molex Vietnam * Change reason : To better serve our customers and to leverage our global manufacturing footprint, Molex will relocate production of the 0.4BTB J-Bend Plug lines from Japan to Molex Vietnam production facility. The transfer will started in Q3 2022 and target to complete in Q1 2023. Buffer stock and capacity tooling will be built as need to ensure a seamless transfer. | Download | |||
| 10/31/2016 | 501415 - Equipment Transfer, Production Transfer or Rearrangement. This letter is to inform you that production of the part(s) identified in this notice is being moved to a different location. No changes will be made to the product as a result of this move. | Download | |||

