1.Product Description
Huizhou Antenk Electronics Co Ltd manufactures 3.5 millimeter pitch PCB spring terminal block for reliable screwless wire to board power and signal interconnection on printed circuit boards. This spring clamp terminal block adopts PA66 plus twenty three percent glass fiber insulator housing with UL94V zero flame retardant grade and tin plated brass solder pins, it supports pole counts ranging from two up to twenty four positions, two housing versions including type one and type two are available and multiple insulator color selections contain green blue black gray and orange, complete dimension and tolerance information can be obtained from official engineering drawing for PCB footprint validation. It delivers two hundred fifty volt rated voltage and eight ampere rated current, compatible with wire gauge from twenty two to sixteen AWG up to one point five square millimeter. Users strip wire insulation, open spring mechanism and insert conductors into terminal cavity then solder the block onto PCB to achieve stable electrical connection without screw tightening. Operators shall follow drawing dimension standards during PCB design, use correct wire specification to prevent poor contact and store goods in dry clean environment to avoid metal part oxidation. Unlike competitors purchasing key components externally Antenk implements full in house workflow covering mold development metal stamping plastic molding assembly and comprehensive lab performance testing. Our factory holds ISO9001 ISO14001 IATF16949 and UL certifications and over seventy percent finished goods export globally. This terminal block fits industrial control systems digital household appliances power supply modules and precision instrument products. Please share your pole count color choice and project specifications for free sample evaluation and full technical drawing support.
Glass Filled Terminal Housing delivers enhanced mechanical strength and high temperature performance for long term connector operation.
Vibration Resistant Terminal Block maintains stable electrical contact under harsh mechanical shock and vibration working conditions.
Color Selectable PCB Terminal supports multiple insulator color options for quick circuit identification on printed circuit boards.
2.Detailed Specifications of AT121‑3.5‑XX‑X‑X‑B PCB Spring Terminal Block
1. Mechanical Specifications
1.1 Product type: PCB mount spring clamp terminal block, screw‑less wire to board connector
1.2 Measurement unit: millimeter
1.3 Key dimension: Refer to official engineering drawing for full outline dimensions and PCB pad reference. Pitch is 3.5 millimeter. Contact pole range covers 2 up to 24 poles. Two housing versions TYPE 1 and TYPE 2 are available. Insulator color options include green blue black gray and orange.
1.4 Assembly method: Strip wire insulation, open spring clamp structure and insert wire conductor into terminal cavity, solder the terminal block pins onto printed circuit board to complete wire‑to‑board connection. No screw tightening required for wiring.
1.5 Ordering feature: Customers can select pole number, insulator color and housing type to satisfy different hardware project requirements.
1.6 CTA: Contact our engineering team to obtain complete dimension drawings and ordering specifications for your PCB design validation.
2. Material Construction
2.1 Solder Pin Material: Brass with tin plated surface
2.2 Insulator Housing: PA66 plus 23 percent glass fiber, flame retardant grade UL94V‑0
3. Electrical & Environmental Performance Parameters
3.1 Rated voltage: 250 Volt
3.2 Rated current: 8 Ampere
3.3 Applicable wire range: 22‑16 AWG, maximum 1.5 square millimeter
3.4 Environmental compliance: Compliant with RoHS requirements
4. Usage Method
4.1 Assembly mode: Properly strip wire insulation, open internal spring clamp and insert wire conductor, solder block pins to PCB to build stable power and signal wire‑to‑board connection.
4.2 Operation tip: Follow dimension tolerance values given on official engineering drawing for PCB pad and mechanical housing design.
5. Application Scenarios
5.1 Screw‑less power signal wiring for industrial control systems
5.2 Internal circuit connection for digital household appliances
5.3 Wiring connection for power supply module products
5.4 Electrical connection for precision instrument equipment
6. Operation & Storage Precautions
6.1 Strictly follow drawing dimensional tolerances during PCB footprint and mechanical housing design
6.2 Use wires within specified wire gauge range to avoid poor electrical contact
6.3 Do not apply excessive force on spring clamp to prevent spring structure damage
6.4 Prevent scratches dirt and mechanical impact on insulator and tin plated brass pins before assembly
6.5 Store products in dry clean environment to avoid oxidation of metal plated components
6.6 Confirm pitch pole quantity insulator color and housing type before placing purchase orders
6.7 CTA: Submit your hardware requirement pole count and project information, we provide free sample evaluation and professional technical consultation services.
3.FAQ
Q: How many packaging do you have?
A: We have five packages including PE bag, hand bag, zip lock bag, colorful box and white box currently.
Q: Can you do our own packaging?
A: Yes, you just provide the package design and we will produce what you want. We also have the professional designer can help you do the packaging design.
Q: How many different types of products your company manufactures?
A: Now we have more than 1,000 products. We have a strong advantage of OEM, just give us the actual products or your idea that you want, we will manufacture for you.
4.Product Drawing
