Wire-bondable NTC Thermistors Supporting the High Reliability of Optical Transceivers

AI, cloud services, and 5G are pushing data centers to scale faster than ever. At the heart of this transformation are optical transceivers—critical modules that convert electrical signals to optical signals and back, enabling ultra-fast, high-capacity data transmission. These components power connections between servers and switches, accelerating performance and expanding network capacity.

As optical transceiver demand grows, so do expectations: higher reliability, smaller footprints, and support for extreme speeds. Meeting these challenges requires precise thermal management—making temperature-sensing solutions like TDK’s bondable NTC thermistor sessential for next-generation optical transceiver designs.

High‑speed optical networks encounter a critical obstacle: heat. Inside optical transceivers, components such as laser diodes and driver ICs generate substantial thermal energy, which can shift laser wavelengths and degrade communication quality—particularly over long‑distance links.
TDK’s bondable NTC thermistor provides real‑time, high‑precision temperature sensing right next to the laser diode, enabling proactive temperature control and early abnormality detection.
This precise monitoring maintains stable laser wavelengths, extends device lifetimes, and boosts overall product reliability for the optical transceiver.
For the harshest environments, TDK’s gold‑electrode NTC thermistor adds exceptional durability and long‑term reliability, making it an indispensable element in next‑generation optical transceiver designs.
 

TDK's NTCWS series thermistors are engineered for seemless integration into optical transceivers, delivering unmatched stability and performance. Here's why leading manafacturers choose TDK:

🔧 Simplified Assembly: Wire-bonding compatible, supporting multiple mounting methods (Au Wire, AuSn solder)
✅ Proven Quality at Scale: Competitive pricing backed by mass-production expertise from the automotive sector.
🛡️ Built for Harsh Conditions: Exceptional durability—passes sulfurization tests (H₂S 5 ppm, 40±2°C, 75±3% RH, 240 hr).
🎯 Precision You Can Trust: ±1% resistance tolerance for high-accuracy temperature sensing.

With decades of experience supplying the automotive market, TDK’s NTC thermistors exhibit less resistance drift than competing parts, guaranteeing long‑term reliability for next‑generation optical transceiver networks.
 

  Comparison vs. Competitor 

The NTCWS series, TDK NTC thermistor product family, offers a variety of resistance values and B-constants, such as 10 kΩ and 100 kΩ,enabling optimal selection according to application and mounting conditions. So designers can select the perfect part for any optical transceiver mounting scenario.

Whether the transceiver requires a compact, wire‑bondable package for high‑density board layouts or a rugged, gold‑electrode version for harsh environments, TDK’s portfolio provides the right NTC thermistor with the exact temperature‑sensing characteristics needed.
Representative model examples are shown below.

We also have samples of the smaller‑sized 0.25x0.25 mm product available. For more details, please download the document at the bottom of the page.