IRSF3031 Equivalent & Substitute Parts

Part Overview

The IRSF3031 is a power switch driver IC manufactured by Infineon Technologies, designed for general-purpose N-channel low-side switching applications. This component features a 1:1 input-to-output ratio with slew rate control and integrated fault protection for over-temperature and over-voltage conditions. The device is rated for 1.8A maximum output current and 50V maximum load voltage in a TO-220AB through-hole package.

The IRSF3031 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

IRSF3031

Infineon TechnologiesIn Stock: 14352IRSF3031 Datasheet

Current PartRFQ

AVS08CB

STMicroelectronicsIn Stock: 3453AVS08CB Datasheet

DirectRFQ

AVS10CB

STMicroelectronicsIn Stock: 2226AVS10CB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute parts listed for the IRSF3031 are STMicroelectronics thyristor devices: AVS08CB and AVS10CB. These components share the following common parameters with the main part:

• Package / Case: TO-220-3 (identical physical form factor)
• Mounting Type: Through Hole (compatible with existing PCB layouts)
• Configuration: Single output device

However, the substitute parts represent a different device category (Thyristors vs. Power Management ICs) and operate on fundamentally different electrical principles. The AVS08CB and AVS10CB are internally triggered TRIACs designed for AC switching applications, whereas the IRSF3031 is a DC power switch driver. Substitution between these device types is not electrically equivalent and requires circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

The IRSF3031 is an obsolete component. For new designs or production continuity, alternative power switch driver solutions from active manufacturers should be evaluated based on specific circuit requirements.

The listed substitute parts (AVS08CB and AVS10CB) are active products with current manufacturing status and ROHS3 compliance. However, these are thyristor devices intended for AC switching applications and are not direct functional equivalents to the IRSF3031 DC power switch driver.

Selection of replacement components should prioritize:

• Active product status for long-term availability
• Compliance certifications matching system requirements (ROHS3 compliance is available in the substitute parts)
• Functional equivalence to the original circuit topology and operating conditions

Frequently Asked Questions (FAQ)

Q: Can AVS08CB or AVS10CB be used as direct replacements for IRSF3031?

A: No. While these parts share the same TO-220-3 package and through-hole mounting, they are fundamentally different device types. The IRSF3031 is a DC power switch driver, while AVS08CB and AVS10CB are AC thyristors (TRIACs). Direct substitution would require circuit redesign.

Q: What is the primary difference between the IRSF3031 and the substitute parts?

A: The IRSF3031 is a power management IC designed for DC switching with N-channel output configuration. The AVS08CB and AVS10CB are thyristor devices designed for AC power control. These operate on different electrical principles and are not interchangeable.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both AVS08CB and AVS10CB are ROHS3 compliant. The IRSF3031 is RoHS non-compliant.

Q: Do the substitute parts have the same package footprint?

A: Yes. All three parts use the TO-220-3 package and are compatible with identical PCB through-hole layouts. However, electrical compatibility does not exist between these device types.

Q: What is the operating temperature range difference?

A: The IRSF3031 operates from -55°C to 150°C (TJ). The AVS08CB operates from -10°C to 125°C (TJ), and the AVS10CB operates from 0°C to 125°C (TJ). The IRSF3031 has a wider temperature range suitable for extended industrial applications.