As thermal management becomes critical in compact electronics, the NE1618DS,118 digital temperature sensor from NXP USA Inc. offers a reliable solution for local and remote temperature monitoring. With its 8-bit resolution, SMBus interface, and programmable features, this 16-SSOP packaged sensor meets the growing demand for energy-efficient, high-accuracy thermal control. Ideal for servers, telecom equipment, and embedded systems, the NE1618DS,118 combines precision (±1.5°C) with flexible operation modes. Discover why engineers trust this sensor for critical applications.
Core Parameters
| Parameter | Value | Source |
|---|---|---|
| Sensor Type | Digital, Local/Remote | NXP Datasheet (Base PN: NE161) |
| Temperature Range | 0°C ~ 120°C (Both Local & Remote) | |
| Output Interface | SMBus | |
| Supply Voltage | 3V ~ 3.6V | |
| Resolution | 8-bit | |
| Accuracy | ±1.5°C (60°C~100°C) / ±3°C (Full Range) | |
| Features | One-Shot, Programmable Limit, Shutdown/Standby Modes | |
| Package | 16-SSOP (3.90mm Width) |
Note: This product is marked as obsolete by the manufacturer. Consider alternatives for new designs.
Selection Guide
Interface Compatibility: Verify SMBus (System Management Bus) support in your host controller.
Accuracy Needs: For applications requiring <±2°C precision, ensure operation within 60°C–100°C range.
Power Constraints: The 3V–3.6V range suits low-power designs but may need regulation.
Package Size: The 16-SSOP (3.9mm) fits space-constrained PCBs but requires surface-mount capability.
Figure 1: Decision flowchart for selecting temperature sensors
Application Cases
Server Thermal Management: Monitors CPU and board temperatures with programmable alerts.
Telecom Base Stations: Remote sensing for power amplifiers in harsh environments.
Industrial Control Systems: One-shot mode reduces power consumption in battery-operated devices.
Market Analysis
According to MarketsandMarkets, the digital temperature sensor market is projected to grow at 6.2% CAGR (2023–2028), driven by IoT and 5G infrastructure. While the NE1618DS,118 is obsolete, its architecture remains relevant for:
Legacy system maintenance
Cost-sensitive replacements
Educational prototyping
Alternative Models Comparison
| Model | Interface | Accuracy (±°C) | Key Advantage |
|---|---|---|---|
| NE1618DS,118 (Obsolete) | SMBus | 1.5 | Legacy compatibility |
| TMP117 (Texas Instruments) | I2C | 0.1 | Ultra-high precision |
| MAX31875 (Analog Devices) | I2C/SMBus | 0.5 | Wider voltage range (1.6V–3.6V) |
Frequently Asked Questions
Q1: Is the NE1618DS,118 still recommended for new designs?
A: No, NXP has marked it as obsolete. Consider newer alternatives like TMP117 for critical applications.
Q2: Can this sensor measure negative temperatures?
A: No, its operating range is strictly 0°C to 120°C.
Q3: What is the typical response time?
A: Approximately 100ms in one-shot mode (per NXP testing data).
Q4: How many remote sensors can it support?
A: The NE1618DS,118 supports one remote diode-connected transistor (e.g., CPU thermal diode).
Q5: Where can I buy remaining stock?
A: Contact authorized distributors or [email protected] for availability.
Future Trends
While the NE1618DS,118 pioneered SMBus-based monitoring, modern designs demand:
Higher-resolution (12–16 bit) sensors
Multi-channel monitoring (4+ zones)
AI-driven predictive thermal management
Conclusion
The NE1618DS,118 remains a testament to NXP's innovation in digital temperature sensing. Though obsolete, its design principles continue to influence modern thermal management solutions. For replacement options or technical queries, contact our team at [email protected].
