Micro & Miniature Connectors for High-Density, Space-Constrained Applications
SINOCONNECTORS provides compact, high-density micro and miniature connector solutions for applications where installation space, weight, reliability, and signal performance are critical.
Our product range includes metal-shell micro rectangular connectors, mixed-current connectors, low-insertion-force connectors, high-speed transmission connectors, low-cost plastic-shell connectors, ultra-miniature connectors, and high-speed differential solutions.
Lightweight
and weight
Density
a smaller footprint
Performance
demanding environments
Termination Options
wire & more
Transmission
signal integrity
Configurations
and customization
Micro & Miniature Connector Product Range
This page presents the main micro and miniature connector families directly. There are currently no lower-level product pages, so the following information is intended to help customers compare the available series and identify the most suitable direction for their application.
J30J Series
J30J Series micro rectangular connectors are designed for high-density, lightweight and reliable electrical interconnection in compact systems.
The series is based on GJB2446 requirements, equivalent to MIL-C-83513, and is compatible with MDM-type interfaces in applicable configurations.
J30J Mixed-Current Series
The J30J mixed-current product family combines different contact sizes or current functions within a compact micro rectangular interface.
J30JZ Series
J30JZ Series connectors are designed to reduce insertion and extraction force while maintaining a compact, high-reliability micro rectangular interface.
Compared with conventional J30J products of similar contact count, the J30JZ family is designed with a smaller overall form factor.
HJ30J Series
HJ30J Series connectors are designed for high-speed signal transmission while retaining the compact dimensions and reliability advantages of micro rectangular connector construction.
J30 Series
J30 Series connectors provide a lightweight and cost-effective micro rectangular solution for applications requiring compact dimensions and reliable interconnection without a metal shell.
The referenced product family complies with GJB2446 requirements, equivalent to MIL-C-83513.
Additional Micro & Ultra-Miniature Series
J29 Series
J29 Series provides an additional option for compact electrical interconnection in space-constrained equipment.
J7245(A) Series
J7245(A) Series provides an ultra-miniature rectangular connector option for applications where installation space and connector size are especially restricted.
High-Speed Differential Solutions
KJ30J High-Speed Differential Micro Connectors
KJ30J Series micro rectangular high-speed differential connectors are designed for compact systems requiring reliable differential signal transmission.
The series is based on GJB2446 requirements, equivalent to MIL-C-83513, and uses a passivated stainless-steel metal shell.
per differential
channel
USB, DisplayPort,
DVI, HDMI & more
integrity & low
insertion loss
Right-Angle PCB
& Wire options
shielding &
EMI protection
Series Quick Comparison
| Series | Positioning | Structure | Key Advantage | Typical Use |
|---|---|---|---|---|
| J30J | Metal-shell micro rectangular connectors | Metal shell, 1.27 mm pitch | High density, rugged, MIL-compatible | Aerospace, defense, industrial control |
| J30J Mixed-Current | Mixed power & signal micro connectors | Metal shell, mixed contacts | Power + signal integration, compact layout | Power & signal integration applications |
| J30JZ | Low insertion force high-reliability connectors | Metal shell, low insertion force | Low insertion force, stable mating | Dense systems, frequent mating |
| HJ30J | High-speed micro rectangular connectors | Metal shell, high-speed design | High-speed transmission, PCB mounting | High-speed data, communications |
| J30 | Low-cost plastic-shell micro connectors | Plastic shell, 1.27 mm pitch | Cost-effective, lightweight | Cost-sensitive industrial applications |
| J29 | Micro rectangular connectors | Metal shell, multiple layouts | Compact interface, reliable contact | General-purpose industrial & instrumentation |
| J7245(A) | Ultra-miniature rectangular connectors | Ultra-small, fine-pitch design | Ultra-small size, space saving | Wearables, medical, compact devices |
Key Technical Specifications
Values vary by series. Please contact us for detailed specifications.
(varies by series)
(varies by series)
(varies by series)
(varies by series)
at 500 VDC
(varies by series)
Straight, Right-Angle,
Surface Mount
(varies by series)
MIL-STD-202, Method 213
Stainless Steel
(varies by series)
(varies by series)
Suriec Mount
Custom Micro & Miniature Connector Solutions
SINOCONNECTORS supports application-specific micro and miniature connector solutions from requirement review through engineering and production.
Connection & Mounting Configurations
Engineering &Manufacturing
Precision Manufacturing
Advanced CNC and stamping equipment ensures tight tolerances and consistent quality.
Professional Assembly
Skilled assembly with process control for reliable performance and stable connections.
Inspection & Testing
Comprehensive testing including electrical, mechanical and environmental verification.
Engineering Support
From design review to production, our engineering team supports your application requirements.
FAQ
Find answers to common questions about circular connectors,
What are micro and miniature connectors used for?
Micro and miniature connectors are designed for systems where installation space and weight are limited but reliable electrical interconnection is still required. Typical applications include aerospace, defense electronics, industrial electronics, communications, transportation, instrumentation and compact electronic equipment.
What micro and miniature connector series does SINOCONNECTORS provide?
Our main product families include J30J, J30J Mixed-Current, J30JZ, HJ30J, J30, J29, J7245(A), and KJ30J high-speed differential connectors.
What is the difference between J30J and J30JZ connectors?
J30J is a general high-density metal-shell micro rectangular connector family. J30JZ is designed for lower insertion and extraction force while maintaining a compact, high-reliability interface. Representative J30JZ configurations can provide mechanical life of up to 20,000 mating cycles.
What is the difference between J30J and J30 connectors?
J30J uses a metal shell and is intended for high-reliability micro rectangular applications. J30 uses a plastic shell and provides a lighter, more cost-effective solution while retaining a compact 1.27 mm pitch interface in the referenced product family.
Which series is suitable for high-speed signal transmission?
HJ30J is designed for high-speed micro rectangular connection. For differential data applications, KJ30J provides a dedicated high-speed solution and supports transmission rates of up to 10 Gbps per differential channel in the referenced product family.
Does SINOCONNECTORS provide 1.27 mm pitch micro connectors?
Yes. J30J, J30, HJ30J and related product configurations use a 1.27 mm grid pitch. Exact contact layouts, PCB arrangements and dimensions depend on the selected series and model.
Can you provide mixed power and signal micro connectors?
Yes. The J30J Mixed-Current Series is intended for compact applications that require power and signal contacts within one connector interface. Contact sizes and electrical combinations are selected according to the application requirements.
What termination and mounting options are available?
Depending on the connector series and configuration, available options include:
- Crimp termination
- Solder termination
- Straight PCB mounting
- Right-angle PCB mounting
- Surface mounting
- Wire-to-wire connection
- Wire-to-board connection
- Cable assembly integration
Which series supports high-speed differential transmission?
KJ30J Series is designed for high-speed differential micro rectangular interconnection. The referenced family supports compact, high-density differential data transmission and multiple termination methods.
What transmission rate can KJ30J support?
The referenced KJ30J high-speed differential connector family supports transmission rates of up to 10 Gbps per differential channel. It can be adapted to applications associated with USB 3.0, DisplayPort, DVI, HDMI and parallel differential cables.
Are micro connectors suitable for vibration and shock environments?
Selected J30-family products are designed for demanding vibration and shock environments. Representative specifications include vibration from 10 to 2000 Hz with acceleration of 196 m/s², while selected products are rated for shock acceleration up to 735 m/s².
What operating temperature range is available?
Representative J30J, J30JZ, HJ30J and J30 products operate from -55°C to +125°C. Temperature ratings for other series should be confirmed according to the selected model and product specification.
How many contacts are available for micro connectors?
Contact count varies by series. Representative configurations include up to 100 contacts for several J30J, J30JZ and HJ30J products, up to 51 contacts for J30, and up to 73 contacts for KJ30J. Selected J30J product families can also provide higher contact-count variants.
Can micro and miniature connectors be customized?
Yes. Customization can include contact layout, contact count, mixed-current arrangements, shell structure, mounting method, termination style, PCB configuration, cable integration, shielding and application-specific mechanical requirements.
Do you provide cable assemblies for micro connectors?
Yes. Suitable micro and miniature connector products can be integrated into cable assemblies according to wire specification, pin assignment, shielding requirements, termination method, cable length and application requirements.
How do I choose the right micro or miniature connector?
To help us recommend the appropriate connector, please provide as much of the following information as possible:
- Application and equipment type
- Available installation space
- Required contact count
- Current and voltage requirements
- Signal or data transmission requirements
- Required data rate
- PCB or cable connection method
- Straight, right-angle or surface-mount requirement
- Wire and cable specification
- Shielding requirement
- Required mating cycles
- Operating environment
- Estimated order quantity
Who We Are
Your Partner for Industrial Connection Solutions
We specialize in industrial electrical connectors and related components, providing reliable connection solutions for demanding applications. Our products cover circular connectors, rectangular connectors, contacts, accessories, cable assemblies and customized solutions.
Engineering Excellence
Experienced engineers dedicated to solving complex connection challenges.
Customer Partnership
We listen, collaborate, and align our solutions with your goals and timelines.
Quality Commitment
Robust quality systems ensure reliability, traceability, and continual improvement.
Global & Responsive
Serving customers worldwide with agile support and reliable delivery.
Let's Build a Better Connection—Together.
Tell us about your application and our team will provide the right solution.