J2-002A-F | JST 2.0mm 2-Pin Side Entry Header | JFA Series
An In-Depth Engineering Review of the JST J2-002A-F Wire-to-Board Header
Content last revised on October 15, 2025.
The JST J2-002A-F is a 2.0mm pitch header engineered to simplify assembly and enable low-profile wire-to-board connections in high-density electronic systems. Featuring a specification of 2.0mm Pitch | 2-Circuit | 100V AC/DC | Side Entry Type, this component offers tangible engineering benefits, including accelerated production workflows with its low insertion force design and enhanced system reliability through secure housing lances. Its side-entry orientation allows for horizontal wire mating, a critical feature for space-constrained PCB layouts where vertical clearance is minimal. For compact industrial control units requiring reliable, low-profile interconnects, the J2-002A-F header is the optimal choice.
Key Parameter Overview
Decoding the Specs for Assembly Efficiency and Reliability
The technical specifications of the J2-002A-F are tailored for efficiency and dependability in modern electronic assemblies. The parameters below highlight its suitability for a range of low-power signal and DC voltage applications where board space and secure connections are primary design drivers.
| Specification | Value | Engineering Implication |
|---|---|---|
| Pitch | 2.0mm (.079") | Provides a balance between compact footprint and sufficient electrical insulation for low-voltage applications. |
| Current Rating | 2.0 A AC/DC (AWG #24) | Suitable for signal lines and low-power distribution within a wide variety of electronic devices. |
| Voltage Rating | 100 V AC/DC | Safely handles typical control and logic-level voltages found in consumer and industrial electronics. |
| Mounting Type | Side Entry (Right Angle) | Enables horizontal wire connection, crucial for minimizing the overall height of the assembled PCB. |
| Applicable Wire | AWG #30 to #24 | Offers flexibility for designers to choose appropriate wire gauges based on current and mechanical requirements. |
| Temperature Range | -25°C to +85°C | Ensures operational integrity across a broad range of commercial and light industrial environments. |
| Housing Material | PA 66, UL94V-0 | Delivers excellent mechanical durability and meets stringent flammability safety standards. |
Note: The above parameters are for reference. For complete technical data, including detailed mechanical drawings and application notes, please refer to the official documentation.
Download the J2-002A-F datasheet for detailed specifications and performance curves.
Application Scenarios & Value
System-Level Benefits in Space-Constrained Designs
The J2-002A-F header excels in applications where vertical space is at a premium and efficient assembly is paramount. Its design provides direct solutions to common engineering challenges in modern electronics packaging.
Consider the design of a slim, modern Human-Machine Interface (HMI) or an industrial control unit. A key challenge is routing signal and power wires to the main PCB without increasing the enclosure's thickness. Traditional vertical headers would require significant overhead clearance, compromising the product's form factor. The side-entry configuration of the J2-002A-F provides a definitive solution. By allowing the mating connector to engage parallel to the PCB surface, it facilitates optimal PCB layout optimization and enables a significantly lower profile. This seemingly simple design choice directly translates to a sleeker, more compact, and aesthetically appealing final product without sacrificing connectivity.
What is the primary benefit of its low-profile design? It enables slimmer and more compact end-products. This connector is a key enabler for miniaturization in fields such as factory automation, consumer appliances, and office equipment, where every millimeter of saved space contributes to a competitive design advantage.
Technical Deep Dive
An Analysis of the Mechanical Design for Enhanced Reliability
The long-term reliability of the J2-002A-F is not accidental; it is engineered through specific mechanical features. The shrouded header design provides crucial protection for the contact pins. During manual or automated assembly, exposed pins are vulnerable to being bent or broken, a common cause of intermittent connections or complete failure. The shroud acts as a guide, ensuring proper alignment of the mating housing and preventing such damage. Think of the shrouded header as a built-in guide rail for a train; it ensures the mating housing aligns perfectly with the pins, preventing costly damage during assembly.
Furthermore, the choice of Polyamide 66 (PA 66) as the housing material is a critical decision. This thermoplastic offers a robust balance of mechanical strength to withstand mating forces, a high dielectric strength for electrical insulation, and a stable operating temperature range. Its certification to the UL94V-0 standard is non-negotiable for products seeking global safety approvals, as it indicates that the material will self-extinguish within a short time after exposure to a flame, enhancing the safety of the end device.
Frequently Asked Questions (FAQ)
What is the primary advantage of the side-entry design on the J2-002A-F?
The main advantage is space-saving. It allows the mating wire harness to run parallel to the circuit board, drastically reducing the vertical height required compared to a top-entry (vertical) header. This is essential for creating slimmer and more compact electronic devices.
How do the housing lances on the JFA series connectors improve manufacturing reliability?
Housing lances are internal features within the mating connector housing that securely lock the crimped terminals in place. This prevents terminals from backing out due to wire stress during harness assembly or vibration during operation, ensuring a consistent and reliable electrical connection and improving overall total cost of ownership by reducing field failures.
Is the J2-002A-F suitable for automated assembly processes?
Yes, its design characteristics support automated assembly. The low insertion force reduces the stress on both the component and the pick-and-place machinery, while the shrouded design helps guide the mating parts, reducing the likelihood of mating errors.
What does the UL94V-0 rating of the housing material signify for system safety?
The UL94V-0 rating is a flammability standard. It signifies that the PA 66 material is self-extinguishing and will not sustain a flame for more than 10 seconds after the source is removed. This is a critical safety feature that helps prevent the spread of fire within an electronic device, often required for product safety certifications.
A Strategic Component for Modern Production
Selecting the JST J2-002A-F is a strategic decision that extends beyond its electrical specifications. It represents a choice for optimized manufacturability and design flexibility. By incorporating a connector that simplifies assembly through low insertion force and enables compact designs with its side-entry orientation, engineering teams can reduce production time and achieve more competitive product form factors. This focus on both performance and production efficiency makes the J2-002A-F a valuable component in designing for the entire product lifecycle.
