N4640-2000RB 3M Connector (Other) In Stock
3M N4640-2000RB is a 40-position, 2-row straight board connector header from the N4600 Series with 2.54 mm pitch, rated at 1.25 A per contact with gold-over-nickel mating contacts. REACH-compliant and RoHS-compatible with solder termination for through-hole PCB mounting. Available from authorized distributors with worldwide shipping.
- Manufacturer
- 3M
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Datasheet
- N4640-2000RB Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 40-position dual-row header at 2.54 mm pitch providing reliable board-to-board connectivity
- Gold (30 µin) over nickel (100 µin) mating contacts ensuring low contact resistance and corrosion resistance
- 1.25 A per contact current rating supporting standard signal and low-power applications
- REACH compliant and RoHS compatible for global regulatory acceptance
- Solder termination through-hole mounting for strong mechanical PCB attachment
Applications
The N4640-2000RB is a versatile 40-pin dual-row header used in PCB backplane connections, development boards, and industrial interface modules where the standard 2.54 mm pitch ensures broad compatibility with mating sockets and ribbon cables. Its 1.25 A contact rating suits digital signal buses, microcontroller expansion headers, and sensor interface boards. The gold-plated mating contacts make it reliable in applications requiring repeated connector insertions.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| Additional Feature | 3M |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (30) OVER NICKEL (100) |
| Contact Finish Termination | MATTE TIN (300) OVER NICKEL (100) |
| Contact Gender | MALE |
| Contact Material | COPPER ALLOY |
| DIN Conformance | NO |
| Filter Feature | NO |
| IEC Conformance | NO |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Manufacturer Series | N4600 |
| Mixed Contacts | NO |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| Terminal Pitch | 2.54mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 40 |
| UL Flammability Code | 94V-0 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the current rating and contact finish of the 3M N4640-2000RB header?
The N4640-2000RB is rated at 1.25 A per contact and features gold (30 µin) over nickel (100 µin) mating contact finish, providing low contact resistance and excellent corrosion resistance suitable for signal and light-power connections on PCB headers in industrial and consumer electronics designs.
What pitch and position count does the N4640-2000RB offer, and how does this affect mating cable selection?
The N4640-2000RB uses a 2.54 mm pitch with 40 positions in 2 rows of 20 pins each, making it directly compatible with standard 40-pin IDC ribbon cables and 0.100-inch pitch sockets widely available from multiple manufacturers, simplifying cable harness selection and reducing procurement lead times.
For which regulatory standards is the N4640-2000RB compliant, and how does this affect global procurement?
The N4640-2000RB carries REACH compliance and is RoHS compatible, enabling straightforward procurement for products sold in the EU, North America, and Asia-Pacific markets. With a 2.54 mm pitch and 40-position count, it can be freely substituted into designs requiring halogen-free, lead-free connector headers rated at 1.25 A per contact.
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