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LM135AH/NOPB
Texas Instruments
SENSOR ANALOG -55C-150C TO46-3
1287 Pcs New Original In Stock
Temperature Sensor Analog, Local -55°C ~ 150°C 10mV/°C TO-46-3
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5.0 / 5.0
- (354 Ratings)
LM135AH/NOPB
Product Overview
1315917
DiGi Electronics Part Number
LM135AH/NOPB-DGManufacturer
Texas Instruments
LM135AH/NOPB
Description
SENSOR ANALOG -55C-150C TO46-3Inventory
1287 Pcs New Original In Stock
Temperature Sensor Analog, Local -55°C ~ 150°C 10mV/°C TO-46-3
Quantity
Minimum 1
Minimum 1
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LM135AH/NOPB Technical Specifications
Category
Temperature Sensors, Analog and Digital Output
Packaging
Bulk
Series
-
Product Status
Active
Sensor Type
Analog, Local
Sensing Temperature - Local
-55°C ~ 150°C
Sensing Temperature - Remote
-
Output Type
Analog Voltage
Voltage - Supply
-
Resolution
10mV/°C
Features
-
Accuracy - Highest (Lowest)
±1°C (±2.7°C)
Test Condition
25°C (-55°C ~ 125°C)
Operating Temperature
-55°C ~ 150°C
Mounting Type
Through Hole
Package / Case
TO-206AB, TO-46-3 Metal Can
Supplier Device Package
TO-46-3
Base Product Number
LM135
Datasheet & Documents
Manufacturer Product Page
LM135AH/NOPB Specifications
HTML Datasheet
LM135AH/NOPB-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
TEXTISLM135AH/NOPB
2156-LM135AH/NOPB-TI
LM135AHNOPB
Standard Package
500
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
신속한 고객 지원 덕분에 문제없이 거래를 마칠 수 있었어요.
de desembre 02, 2025
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de desembre 02, 2025
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de desembre 02, 2025
I’ve saved money and received my orders promptly thanks to their streamlined logistics.
de desembre 02, 2025
Every purchase I've made has been delivered promptly without any issues, which speaks to their reliable logistics.
de desembre 02, 2025
The customer service team at DiGi Electronics was extremely responsive and helped me resolve an issue within 24 hours, which was impressive.
de desembre 02, 2025
Their support staff goes above and beyond to ensure customer satisfaction.
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I am impressed with their responsive and helpful customer service team.
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Frequently Asked Questions (FAQ)
How does the LM135AH/NOPB perform in high-temperature industrial environments compared to digital alternatives like the TMP35, and what design precautions are needed to ensure long-term reliability above 125°C?
The LM135AH/NOPB excels in high-temperature operation up to 150°C, making it ideal for industrial and automotive applications where digital sensors like the TMP35 may struggle near their upper limits. Unlike the TMP35, which relies on an internal ADC and can drift at temperature extremes, the LM135AH/NOPB's analog output provides a continuous 10mV/°C response with ±1°C accuracy at 25°C and ±2.7°C across -55°C to 125°C. To maintain reliability above 125°C, ensure minimal self-heating by limiting supply current through the series resistor, use a stable, low-noise voltage reference, and isolate the device from external thermal gradients. Also, account for output drift over time by allowing calibration headroom in your analog front-end design.
Can the LM135AH/NOPB be used as a direct replacement for the LM335A in an existing precision temperature measurement circuit, and what are the key calibration differences?
Yes, the LM135AH/NOPB can replace the LM335A in most designs since both share the same 10mV/°C sensitivity, TO-46-3 package, and through-hole mounting. However, the LM135AH/NOPB is specified for a wider operating range (-55°C to 150°C vs. -40°C to 100°C for LM335A) and has tighter initial accuracy (±1°C at 25°C). Calibration is critical: trim the offset at 25°C using the calibration pin by adjusting the series resistor divider to achieve exactly 2.982V output. Due to the LM135AH/NOPB's higher temperature capability, validate performance at both low and high extremes in your system, especially if the original LM335A circuit lacked full-range compensation.
What are the risks of using the LM135AH/NOPB in a high-noise environment with long analog signal traces, and how can signal integrity be preserved?
The LM135AH/NOPB outputs an analog voltage (10mV/°C), making it vulnerable to EMI and ground loops in noisy environments or with long traces. Unshielded runs can introduce errors greater than the sensor’s ±1°C accuracy. To mitigate risks, keep traces short and twisted, use a local bypass capacitor (0.1µF ceramic + 1µF tantalum) near the device, buffer the output with a rail-to-rail op-amp (e.g., LPV521), and consider adding a low-pass RC filter (e.g., 1kΩ + 100nF) at the ADC input. Avoid routing near switching power supplies or motor drivers. For industrial systems, isolate the sensor ground from digital ground at a single point to prevent ground bounce corruption.
How does self-heating affect measurement accuracy in the LM135AH/NOPB, and what is the recommended bias current to minimize thermal error in continuous operation?
Self-heating in the LM135AH/NOPB can cause measurement errors, especially in enclosed or high-ambient environments. The device requires a minimum of 400µA to regulate but operates optimally at 1mA. Exceeding 5mA significantly increases junction temperature due to power dissipation in the TO-46 metal can. For stable accuracy, bias the LM135AH/NOPB at exactly 1mA using a precision current source or a high-value resistor (e.g., 5kΩ from a 5.5V supply). This balances regulation reliability and thermal rise, typically limiting self-heating to less than 0.5°C in free air. In sealed enclosures, derate further or use pulsed excitation to reduce average power.
What are the reliability concerns when soldering the LM135AH/NOPB in high-volume through-hole production, and how does its MSL 1 rating impact assembly and storage?
The LM135AH/NOPB has an MSL 1 (Unlimited) rating, meaning it can be stored indefinitely in ambient conditions (≤30°C/85% RH) without moisture sensitivity risks, eliminating baking requirements before assembly. However, because it's a metal can TO-46-3 device, thermal stress during soldering is a concern: excessive iron contact time can damage the internal die or seal. Use temperature-controlled soldering (≤370°C for 10 seconds max) and avoid mechanical stress on leads. In wave soldering, ensure proper fixture alignment to prevent tilting. The RoHS3 compliance and robust metal package ensure long-term reliability, but always verify post-solder cleanliness to avoid leakage currents on high-impedance analog nodes.
Quality Assurance (QC)
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LM135AH/NOPB CAD Models
Texas Instruments LM135AH/NOPB PCB symbols & footprints
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