Request Quote
(Ships tomorrow)
QT60161B-AS Equivalent & Substitute Parts
Part Overview
The QT60161B-AS is a touchscreen controller manufactured by Microchip Technology, designed for 2-wire capacitive touch applications with 10 and 16-bit resolution. This device operates via SPI interface in a 44-TQFP surface mount package. The QT60161B-AS is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | QT60161B-AS |
|---|---|
| Manufacturer | Microchip Technology |
| Category | Data Acquisition |
| Series | QMatrix™ |
| Product Status | Obsolete |
| Touchscreen Type | 2 Wire Capacitive |
| Resolution | 10, 16 b |
| Interface | SPI |
| Voltage Supply Range | 4.75V ~ 5.25V |
| Current Supply | 25 mA |
| Operating Temperature | -40°C ~ 105°C |
| Mounting Type | Surface Mount |
| Package | 44-TQFP (10x10) |
| RoHS Status | RoHS non-compliant |
| MSL Rating | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitution of the QT60161B-AS is determined by the following critical parameters:
- Interface Protocol: SPI compatibility is required for direct functional replacement
- Voltage Supply Range: Operating voltage window must accommodate the original 4.75V ~ 5.25V specification
- Current Consumption: Maximum supply current of 25 mA establishes power budget constraints
- Operating Temperature Range: -40°C ~ 105°C defines thermal operating envelope
- Mounting and Package: Surface mount technology with compatible footprint considerations
- Manufacturer Ecosystem: Microchip Technology QMatrix™ series maintains design continuity
The QT60168-ASG is identified as a manufacturer-recommended substitute. While this device operates within compatible voltage and temperature ranges and shares the same SPI interface and current specifications, it represents a functional alternative rather than a pin-for-pin replacement, as it addresses capacitive touch button applications within the same product family.
Parameter Comparison
| Parameter | QT60161B-AS | QT60168-ASG |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Series | QMatrix™ | QMatrix™, QProx™ |
| Product Status | Obsolete | Active |
| Interface | SPI | SPI |
| Voltage Supply Range | 4.75V ~ 5.25V | 3V ~ 5.25V |
| Current Supply | 25 mA | 25 mA (Max) |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package | 44-TQFP (10x10) | 32-TQFP (7x7) |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| MSL Rating | 3 (168 Hours) | 3 (168 Hours) |
Engineering Selection Recommendations
Product Status Consideration: The QT60161B-AS is obsolete. The QT60168-ASG is active and currently manufactured, providing long-term availability and supply chain stability.
Compliance Status: The QT60168-ASG achieves ROHS3 compliance, whereas the QT60161B-AS is RoHS non-compliant. For applications subject to RoHS regulations, the QT60168-ASG is the appropriate selection.
Voltage Supply Compatibility: The QT60168-ASG operates across a wider voltage range (3V ~ 5.25V) compared to the QT60161B-AS (4.75V ~ 5.25V). This expanded range provides greater design flexibility for systems operating at lower supply voltages.
Package Differences: The QT60168-ASG uses a 32-TQFP (7x7) package versus the 44-TQFP (10x10) package of the QT60161B-AS. PCB layout modifications are required for substitution.
Thermal and Electrical Specifications: Both devices maintain identical operating temperature ranges (-40°C ~ 105°C) and current supply specifications (25 mA), ensuring thermal and power budget compatibility.
Frequently Asked Questions (FAQ)
Q: Can the QT60168-ASG directly replace the QT60161B-AS without PCB modifications?
A: No. The QT60168-ASG uses a 32-TQFP (7x7) package, while the QT60161B-AS uses a 44-TQFP (10x10) package. PCB layout and footprint redesign is required.
Q: What is the primary reason for substituting the QT60161B-AS?
A: The QT60161B-AS is obsolete. The QT60168-ASG is an active product from the same manufacturer and product family, ensuring continued availability and support.
Q: Are the SPI interface protocols identical between these devices?
A: Both devices use SPI interface. However, functional differences exist due to different input channel configurations and application focus. Firmware and driver modifications may be necessary.
Q: Does the QT60168-ASG meet RoHS requirements?
A: Yes. The QT60168-ASG is ROHS3 compliant, whereas the QT60161B-AS is RoHS non-compliant.
Q: What is the voltage supply compatibility between these devices?
A: The QT60161B-AS requires 4.75V ~ 5.25V. The QT60168-ASG operates across 3V ~ 5.25V. The QT60168-ASG is compatible with the original voltage range and supports lower voltage applications.
Q: Are the current consumption specifications equivalent?
A: Yes. Both devices specify 25 mA maximum supply current, maintaining identical power budget requirements.
Q: What is the moisture sensitivity level for both devices?
A: Both devices carry MSL rating 3 (168 Hours), indicating identical moisture handling and storage requirements.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts