Backplane Connectors - Accessories

Image	Part Number	Description / PDF	Quantity	Rfq
	QR/P18-PA4S Hirose	CONN HOLDER 16POS PLUG PANEL MNT	0
	QR/P18-SA4P-A Hirose	CONN HOLDER 16POS RCPT PANEL MNT	0
	QR/P18-PB Hirose	CONN PLUG HOUSING 1.5MM 18POS	0
	PCN21-S-CK(F) Hirose	CONN CODING KEY FEMALE YEL 3.3V	0
	QR/P4-SCREW(01) Hirose	CONN CRIMP TERM FEMALE	0
	QR/P15-8P-C(50) Hirose	CONN PLUG HOUSING 8 POS	0
	PS3F-RPC(22) Hirose	CONN PS3F 100A MODULE SIDE	0
	QR/P15-SCREW Hirose	CONN SCREW QR/P15 SERIES	0
	QR/P15-24(4)S-C(50) Hirose	CONN SOCKET HSG 24 POS	0
	QR/P4-SCREW Hirose	CONN CRIMP TERM FEMALE	0
	PS3F-PC-HOLDER Hirose	CONN PS3F HOLDER	0
	PS3C-1UP-CVL(01) Hirose	CONN R/A COVER FOR PS3C COVER	0
	PCN21B-SB2-G Hirose	CONN GROUND PLATE 95 SB RECEPT	0
	PCN21B-SA-G Hirose	CONN GROUND PLATE 110 SA RECEPT	0
	PCN21-P-CK(B) Hirose	CONN CODING KEY MALE BLUE 5V	0
	PCN21A-SC-G Hirose	CONN BOTTOM GROUND PLATE FEMALE	0
	PCN21-S-CK(B) Hirose	CONN CODING KEY FEMALE BLUE 5V	0
	PCN21B-SB-G Hirose	CONN GROUND PLATE 125 SB RECEPT	0
	PCN21B-SC-G Hirose	CONN BOTTOM GROUND PLATE FEMALE	0
	PCN21-P-CK(A) Hirose	CONN CODING KEY MALE YELLOW 3.3V	0

Backplane Connectors - Accessories

1. Overview

Backplane connectors are critical components in electronic systems, providing modular interconnection between printed circuit boards (PCBs) and supporting high-density signal/power transmission. Accessories enhance their functionality through mechanical support, environmental protection, and performance optimization. These components are essential in telecommunications, data centers, and industrial equipment for ensuring reliable system architecture.

2. Major Types & Functional Classification

Type	Functional Features	Application Examples
Alignment Pins	Precision-guided insertion, anti-misalignment design	Telecom backplanes
Grounding Clips	EMI shielding, 360 contact	Military radar systems
Dust Covers	IP67-rated contamination protection	Outdoor base stations
Mounting Brackets	Vibration damping, load distribution	Industrial control cabinets
Test Adapters	Hot-swappable diagnostics interface	Data center maintenance

3. Structural Composition

Typical construction includes:

Mechanical components: Precision-machined alignment guides and stress-relief brackets
Electrical elements: Gold-plated contact points and EMI gaskets
Material composition: LCP (Liquid Crystal Polymer) insulation with UL94 V-0 rating

4. Key Technical Specifications

Parameter	Typical Range	Importance
Current Rating	1-5A per contact	Power transmission capability
Dielectric Strength	1,000-2,500VAC	Electrical safety margin
Contact Resistance	<10m	Signal integrity maintenance
Insertion Force	20-80N	Usability and durability
Operating Temp	-55 C to +125 C	Environmental reliability

5. Application Fields

Primary industries:

Telecommunications: 5G base stations, optical switches
Data Centers: Server racks, storage arrays
Industrial Automation: PLC backplanes
Medical Imaging: MRI scanner chassis interconnects
Aerospace: Avionics modular systems

6. Leading Manufacturers & Products

Manufacturer	Key Product Series	Technical Highlights
TE Connectivity	ARINC 800H	100Gbps optical integration
Amphenol	CBGA Socket	Zero insertion force design
Molex	MX-SERIES	Self-aligning twinax contacts
Samtec	Raptor HD	25.4 m contact spacing

7. Selection Guidelines

Key considerations:

Signal integrity requirements (frequency & skew tolerance)
Environmental conditions (temperature/humidity/corrosion)
Mechanical durability (mating cycles & vibration resistance)
Thermal management (current carrying capacity)
Compliance standards (IPC, MIL-STD, RoHS)

Case Study: In hyper-scale data centers, Samtec's FireFly modular system reduced rack interconnect costs by 40% while maintaining 28Gbps performance.

8. Industry Trends

Emerging developments include:

High-speed protocols (PCIe 5.0, 112Gbps SerDes)
Miniaturization (sub-1mm contact pitch)
Smart monitoring integration (embedded sensors)
Advanced materials (graphene-enhanced contacts)
Sustainable manufacturing (lead-free plating processes)