WA04X is a 0402x4 chip resistors array produced by Walsin Technology. This chip resistor is small and light, has low cost and high reliability.
The WA04X series from Walsin is a convex‑type chip resistor array in a 0402x4 (1005x4) package. It offers a small size, light weight, and lead‑free options, making it suitable for consumer electronics, computers, and telecom devices. The resistors are built on a high‑purity alumina substrate with laser‑trimmed resistive paste and protective coating.
The series provides a resistance tolerance of ±5 % across a range of 10 Ω to 1 MΩ, with a maximum power dissipation of 1.6 W at 70 °C and a continuous operating voltage of 25 V (overload up to 50 V). It is supplied on 8 mm paper tape reels (10 000 pcs per reel) for automated surface‑mount assembly.
| Package size | 0402x4 (1005x4) |
|---|---|
| Resistance tolerance | +5 % |
| Resistance range | 10 Ω ~ 1 MΩ |
| Temperature coefficient (TCR) | < +300 ppm/°C for 10 Ω ~ 1 MΩ |
| Maximum dissipation at 70 °C | 1.6 W |
| Maximum continuous operating voltage | 25 V (DC or RMS) |
| Maximum overload voltage | 50 V |
| Climatic category | 55/155/56 |
| Packaging | 8 mm paper tape, 10 000 pcs per reel |
The WA04X series provides a resistance tolerance of ±5 %.
The maximum continuous operating voltage is 25 V (DC or RMS).
It can dissipate up to 1.6 W at an ambient temperature of 70 °C.
The resistors are supplied on 8 mm wide paper tape reels, with 10 000 pieces per reel.