I-CORE · sensor, touch and protection ICs
TK8021
TK8021 is an I-CORE 1-key touch chip in SOT-23-6, 2.1–5.5 V. Factory-original stock in Shenzhen; free samples with shipping paid.
In stock · ShenzhenFree samples · shipping paidEnglish datasheetREACHRoHS
I-CORE partTK8021
SOT-23-6 · 2.1–5.5 V
Key specifications
| Manufacturer | I-CORE (Wuxi I-CORE Electronics Co., Ltd.) |
|---|---|
| Part number | TK8021 |
| Function | 1-key Touch Chip |
| Package | SOT-23-6 |
| Order codes in stock | TK8021NHGB236.TR |
| Supply voltage | 2.1–5.5 V |
| Operating temperature | See datasheet |
| Compliance | RoHS (EU 2011/65/EU + 2015/863) and REACH SVHC — third-party lab tested; reports on request |
| Datasheet | PDF, English |
Questions buyers ask
- What is the supply voltage and temperature range of TK8021?
- Supply: 2.1–5.5 V. Operating temperature: See datasheet. See the datasheet for full electrical characteristics.
- Is TK8021 in stock, and can I get a free sample?
- Yes, it is held in stock in Shenzhen. Free samples are available for evaluation, with shipping paid by us. For production orders, SMD parts can be ordered from 1 pc and DIP parts ship in full tubes; orders ship within 2–3 business days after payment.
- Is it original I-CORE product?
- Yes. We supply factory-original I-CORE (Wuxi I-CORE Electronics) parts in sealed reels and tubes. Our ISO 9001, ISO 14001 and ISO 45001 certificates are shown on the home page; RoHS and REACH test reports are available on request.
Datasheet highlights
From the I-CORE English datasheet TK8021-AX-QT-C004EN (revision 2024-01-C1). The full datasheet PDF is linked above.
General description
TK8021 is a 1-key touch chip, which has the advantages of high sensitivity, strong anti-interference ability, waterproof and dustproof, high reliability, etc., and can widely replace traditional mechanical keys. It is mainly used for key detection in household appliances, consumer electronics, industrial control and other fields.
Key features
- Single-channel touch key detection
- Supply voltage range: 2.1V to 5.5V
- Supply current: 1.4uA@VDD=3V (Typ.)
- No key for 16 seconds enter low power mode
- Sensitivity can be adjusted by CLD capacitor (1nF to 22nF)
- Touch key long press time: 16s
Request a quote
We reply within 1 business day. Free samples — shipping on us. Tell us the part number, quantity and your application.