Bosch Mass Air Flow Sensor Datasheet Jun 2026

Many datasheets provide the formula: Vout = 0.5 + (Flow_kg_h / 150) . Using this, you can build a diagnostic rig or program an ECU calibration.

Need a specific Bosch MAF sensor datasheet? Start with the 10-digit number printed on the sensor body — that is your definitive key to all technical specifications.

The standard operating parameters for common Bosch HFM sensors (such as the HFM-5) include: Typically 8V to 17V, with a nominal rating of 14V. Output Voltage ( UAcap U sub cap A bosch mass air flow sensor datasheet

The story of the sensor was written in and voltage outputs . Elias watched the screen as the engine breathed. As the throttle opened, a rush of air cooled the sensor's delicate film. The sensor fought back, drawing more current to stay warm. This struggle was instantly translated into a signal for the ECU, whispering exactly how much fuel to inject to maintain the perfect stoichiometric ratio [3, 4].

This is the most important table in the datasheet. For a typical Bosch 0-5V analog MAF, the transfer function looks like this: Many datasheets provide the formula: Vout = 0

When you open a (typically a 2-4 page PDF), here are the sections you must not ignore.

Some Bosch datasheets include a diode diagram. If you reverse the wiring (swap 12V and ground), you will destroy the ASIC in milliseconds. No fuse will save it. Start with the 10-digit number printed on the

, details technical specifications for measuring air mass flow in internal-combustion engines. Core Technical Specifications Standard Value Range Operating Voltage ( cap U sub cap V (depending on model) Output Signal ( cap U sub cap A (Analog) or Digital (PWM/SENT) Measuring Range (model-specific) Temperature Range (short-term up to Response Time ( tau sub 63 (Time to reach 63% of final value) Accuracy ( Typically within Connector Pin Assignment (Common 5-Pin HFM 5) Hot-film air-mass meter, Type HFM 5 - Rennlist