Topdiode Manufacturing Company

09/06/2026

To help ensure a stable supply chain and reduce redesign costs, we have prepared a list of Topdiode direct pin-to-pin replacement solutions. Simply send us your part list or BOM, and we will promptly provide cross-reference recommendations, availability, and competitive quotations.

,

02/06/2026

Traditional amplifier architectures waste a significant amount of energy as heat. Class D amplifiers use high-frequency switching techniques to achieve much higher efficiency while maintaining excellent audio quality.

At Topdiodes, we provide Class D Audio Amplifier IC solutions to support modern audio applications.

What audio products are you currently designing?

02/06/2026

🔍 Why are Class D Audio Amplifiers so popular today?

The answer is simple: efficiency.

Traditional amplifier architectures waste a significant amount of energy as heat. Class D amplifiers use high-frequency switching techniques to achieve much higher efficiency while maintaining excellent audio quality.

At Topdiodes, we provide Class D Audio Amplifier IC solutions to support modern audio applications.

What audio products are you currently designing?

28/05/2026

28/05/2026

Due to the current market situation, many electronic components are facing allocation, longer lead times, and continuous price increases. Some items are even experiencing supply shortages.

We own our brands UF Capacitor and Topdiode, with a complete product portfolio covering capacitors, semiconductor devices, and protection components. Our comprehensive product range can help customers reduce sourcing time and improve supply chain efficiency.

We mainly provide cross-reference solutions for electronic components, including:

*** Ceramic capacitors cross for Murata, Samsung, Yageo, Walsin
*** Tantalum capacitors cross for AVX, Kemet, Vishay
*** SMD aluminum capacitors cross for Rubycon, Panasonic, Nichicon
*** Varistors cross for TDK/EPCOS
*** Transistors, MOSFETs, ICs, TVS, rectifiers, and other semiconductor products cross for Infineon, Nexperia, NXP, MCC, TI (Texas Instruments), and other major brands

Especially under the current shortage situation, we may support customers with better availability, flexible solutions, and competitive lead times for some difficult-to-source items.

27/05/2026

UF Capacitors Chip MLCC (4V~6000V)

Key features:
o Wide Range Stock Offer Chip MLCC
o Full Range: 0201 0402 0603 0805 1206 1210 1812 2220
o Wide Capacitance Range: 0.3pF to 220uF
o Up to 600 inner layers in a few mm thickness
o RoHS & REACH compliant
o HQ series available: Medical (CT, X-ray), GPS

Direct Value:
√ PIN to PIN replacements for Vishay, Kemet, TDK, Murata
√ Short lead time, competitive price, no redesign

Learn more：www.ufcapacitors.com

19/05/2026

UF CT81 High Voltage Ceramic Capacitors

* Reliable performance
* Wide temp range: -40℃~+125℃
* 500V~6kV full range available

Direct drop-in replacement for major international brands,
perfectly suited for power supplies, meters & general electronics.

Learn more ：www.ufcapacitors.com

12/05/2026

Topdiode TL431NBXG Low-Voltage Adjustable Precision Shunt Regulators cross for Texas TLVH431AIDBZR

Features:
• Programmable Precise Output Voltage from 2.5V
to 36V
• Very Accurate Reference Voltage: Typical 0.15%
• High Stability under Capacitive Load
• Low Temperature Deviation: Typical 4.5mV
• Low Equivalent Full-range Temperature
• Coefficient with 20PPM/°C Typical
• Low Dynamic Output Resistance: Typical 0.2Ω
• Sink Current Capacity from 1mA to 100 mA
• Low Output Noise
• Wide Operating Range of -40 to 150°C

Applications:
• Adjustable voltage reference for data Converters
• Secondary side regulation in flyback SMPSs
• Zener replacement with low leakage current
• Voltage monitoring for power rails
• Comparator with integrated reference

08/05/2026

Topdiode TP1117MK33 low drop positive voltage regulator replacement for ST LD1117V33C
Features:
• Adjustable or fixed output
• Output current of 1A
• Low dropout - 1.3V typ. at 1A output current
• 0.04% line regulation, 0.2 % load regulation
• 100% thermal limit burn-in
• Fast transient response it can operate using MLCCs in the capacitance range of 2UF to 10UF

Applications
• High efficiency linear regulators
• Post regulators for switching supplies
• Adjustable power supply