Postek (HK) Co., Limited | HSJ Series
HSJ Modular High-Speed Electrical Connector
Hybrid Differential/RF/Power · 6.25 Gbps · 40 GHz · -55°C to +125°C
HSJ Series Modular Connector Assembly
1. Product Overview
The HSJ Series is a modular high-speed electrical connector engineered for high-reliability applications requiring integrated transmission of differential, RF, optical, and power signals. Its user-configurable, open-architecture design supports a wide range of mission profiles in flight systems, high-altitude platforms, and other demanding environments where signal integrity and environmental resistance are critical.
Key Features
2. Technical Specifications
2.1 High-Speed Differential Transmission Performance
| Parameter | Value |
|---|---|
| Differential Impedance | 100Ω ±15Ω |
| Data Rate | 6.25 Gbps (extendable to 10 Gbps) |
| Crosstalk | Better than -30 dB |
| Low-Level Contact Resistance | ≤ 40 mΩ |
| Rated Current (per signal contact) | 1 A |
| Insulation Resistance | ≥ 1000 MΩ |
| Dielectric Withstanding Voltage | 500 V |
2.2 RF Performance
| Parameter | Value |
|---|---|
| Operating Frequency | 0 ~ 40 GHz |
| Characteristic Impedance | 50Ω |
| Insertion Loss | ≤ 0.06√f (f: GHz) |
| VSWR | ≤ 1.15 + 0.01f (f: GHz) |
| Phase Stability | DC ~ 18 GHz: ≤ ±3° DC ~ 40 GHz: ≤ ±6° |
| Isolation | Better than -90 dB (50 MHz ~ 18 GHz) Better than -90 dB (1 GHz ~ 40 GHz) |
| RF Leakage | Better than -80 dB (2 GHz ~ 3 GHz) |
2.3 Power Transmission Performance
| Parameter | Value |
|---|---|
| Contact Rated Current | Single row, 2 contacts, 8 A per contact |
| Dielectric Withstanding Voltage | 500 V |
| Insulation Resistance | ≥ 1000 MΩ |
2.4 Optical Transmission Performance
| Parameter | Value |
|---|---|
| Insertion Loss | ≤ 1.5 dB |
| Bit Error Rate | No errors greater than 10⁻¹² |
2.5 Environmental & Mechanical Performance
| Parameter | Value |
|---|---|
| Operating Temperature | -55°C to +125°C |
| Salt Spray | 96 hours |
| Damp Heat (Humidity) | Per GJB 1217A, alternating humidity 10 days |
| Vibration (Sinusoidal) | 10 Hz ~ 2000 Hz, 196 m/s² |
| Vibration (Random) | 10 Hz ~ 2000 Hz, 0.2 g²/Hz |
| Mechanical Shock | 80 g, half-sine, 11 ms duration |
| Mechanical Life | 5000 cycles |
3. Part Number Nomenclature
The HSJ series employs a structured part-numbering system to define contact configuration, connector type, termination style, and locking components. Three primary termination variants are available.
3.1 Crimp Termination Variant
HSJ – 12G1 ZK × × –A
| Position | Code | Description |
|---|---|---|
| ① | HSJ | Series Designator |
| ② | 12G1 | Contact Count: 12 differential contacts + 1 high-frequency contact |
| ③ | ZK / TJ | Connector Type: ZK – Socket (receptacle with female contacts); TJ – Plug (with male contacts) |
| ④ | — (blank) | Termination Style: Crimp (no code) |
| ⑤ | L, K, P, etc. | Locking Component Category |
| ⑥ | A, B, C, etc. | Design Sequence Number |
3.2 Straight PCB Termination Variant
HSJ – 12G1 TJ/ZK N3 × –A
| Position | Code | Description |
|---|---|---|
| ① | HSJ | Series Designator |
| ② | 12G1 | Contact Count: 12 differential contacts + 1 high-frequency contact |
| ③ | ZK / TJ | Connector Type: ZK – Socket (receptacle with female contacts); TJ – Plug (with male contacts) |
| ④ | N3 | Termination Style: Straight PCB mount |
| ⑤ | L, K, P, etc. | Locking Component Category |
| ⑥ | A, B, C, etc. | Design Sequence Number |
3.3 Right-Angle PCB Termination Variant
HSJ – 12G1 ZK W2
| Position | Code | Description |
|---|---|---|
| ① | HSJ | Series Designator |
| ② | 12G1 | Contact Count: 12 differential contacts + 1 high-frequency contact |
| ③ | ZK | Connector Type: Socket (receptacle with female contacts) |
| ④ | W2 | Termination Style: Right-angle PCB mount |
4. Outline Dimensions
The overall length (A) of the connector housing varies with the number of cavities. Refer to the table below for dimensioning.
| Number of Cavities | A (mm) |
|---|---|
| 1 | 17.8 |
| 2 | 21.8 |
| 3 | 25.8 |
| 4 | 29.8 |
| 5 | 33.8 |
| 6 | 37.8 |
5. Drawing Gallery
6. Compliance & Standards
7. Frequently Asked Questions
What signal types can the HSJ series integrate?
The HSJ modular platform supports differential high-speed signals, RF (up to 40 GHz), optical fiber, single-ended signals, and power contacts within a single connector housing. The user-configurable architecture allows mixing modules to meet specific application requirements.
What is the maximum data rate supported?
The standard high-speed differential modules are rated for 6.25 Gbps and are extendable to 10 Gbps. Consult the datasheet for specific configuration performance details.
How are cavities calculated in the part number?
Total cavities = (number before "G" / 4) + number after "G". For example, HSJ-12G1 yields 12/4 + 1 = 4 cavities. The default module arrangement from right to left is differential, power, then RF.
What termination styles are available?
Three termination variants are offered: crimp (no code), straight PCB mount (N3), and right-angle PCB mount (W2). The right-angle variant is available for socket (ZK) connectors.