Topfast Premium

High-Reliability
PCB Component Solutions

One-stop component supply — Bulk Purchasing

In-stock Models

Fast Delivery

Genuine Guarantee

Get Instant Quote Upload BOM

Common Electronic Components

Reliable supply for 8 major component categories — Bulk Purchasing

Resistors

Chip, wirewound, precision & high-power — full range of resistance values

Capacitors

MLCC, tantalum, aluminum electrolytic — Murata, TDK, Samsung authorized

Inductors

Power, choke, multilayer & wirewound — for filtering and energy storage

Diodes

Schottky, Zener, rectifier & TVS — AEC-Q101 qualified options

Transistors

MOSFET, BJT, IGBT — ON Semi, Infineon, ST direct channels

IC Chips

MCU, power management, logic & interface — original factory sealed

Connectors

USB, FFC/FPC, board-to-board, terminal blocks — Molex, JST, TE

Crystals & Oscillators

Crystal resonators, TCXO, VCXO — precise frequency control

Stable Supply Chain

Direct partnerships with 50+ authorized brands including Murata, TDK, Samsung and more. Never worry about component shortages or long lead times.

Authorized Distributor

Cost Optimization

Smart alternative component matching reduces BOM costs by 15–30% on average. Volume pricing tiers and annual agreements for maximum savings.

Save 15–30% on BOM

Quality Assurance

Three-level inspection process — visual, electrical, reliability testing. Complete COC/COO documentation with full batch traceability.

99.7% Genuine Guarantee

Upload BOM List

Step 01

Supports Excel, PDF, format files. Our system parses your components automatically

Excel PDF

Smart Matching

Step 02

Automatically identifies alternative models and cost-effective substitutes. Our database cross-references 50+ brands for the best fit.

Auto Match 50+ Brands

Quotation Plan

Step 03

Tiered pricing for prototype, small batch, and mass production. Full quotation delivered within 24 hours with no hidden fees.

24h Quote Tiered Pricing

Upload BOM Now — It's Free

Get your complete quotation within 24 hours

Incoming Inspection

Full visual, X-ray, solderability, and electrical performance checks for every batch

Complete Certifications

RoHS, REACH, and UL certified. Full COC/COO documentation with every shipment

Full Traceability

Batch number tracking from manufacturer to delivery — complete supply chain visibility

Three-Level Testing

Appearance → Electrical → Reliability verification. 99.7% genuine guarantee

Prototype

Quote in 4 hours

✓ MOQ: 1 piece, no minimum order
✓ No engineering or setup fees
✓ Same-day shipping available

Best Value

Small Batch

10% volume discount

✓ 50 to 1,000 pieces
✓ 10% tiered discount applied
✓ Free domestic shipping

Volume

Annual agreement pricing

✓ 1,000+ pieces per order
✓ Dedicated account manager
✓ VMI inventory management

How do I get a quote for components?

Simply upload your BOM list (Excel, PDF) through our online website. Our system will automatically match your requirements with available components and provide you with a comprehensive quote within 24 hours, including alternative solutions and cost-saving options.

Are all components genuine and certified?

Yes, we source all components from authorized distributors and manufacturers. Every component comes with complete certification including RoHS, REACH, UL, and full traceability documentation. Our three-level inspection process ensures 99.7% genuine guarantee.

What is the minimum order quantity?

We support flexible order quantities. For prototypes, we accept orders of 1 piece with no engineering fees. For small batches (50-1K pieces), we offer 10% discounts. For volume purchases (1K+ pieces), we provide annual agreement pricing with dedicated account management.

How long does shipping take?

For in-stock components, we offer 48-hour fast delivery. Prototype orders typically ship within 4 hours after quote confirmation. For international shipments, we work with major carriers like DHL, FedEx, and UPS with door-to-door service.

Do you provide alternative components?

Yes, our smart matching system automatically identifies alternative components that can reduce your BOM costs by 15-30%. We analyze cross-references from multiple manufacturers and provide you with cost-effective alternatives.

What quality assurance processes do you have?

Our comprehensive quality assurance includes three levels: 1) Visual and appearance inspection, 2) Electrical performance testing, 3) Reliability testing. We also conduct X-ray inspection for BGA/QFN components and provide full batch traceability.

Talk to Our PCB Expert

High-Reliability
PCB Component Solutions