BUV22 Equivalent & Substitute Parts

Part Overview

The BUV22 is an NPN bipolar junction transistor (BJT) manufactured by onsemi, designed for high-power switching applications. It operates at 250 V collector-emitter breakdown voltage with a maximum collector current of 40 A and 250 W power dissipation capability. The device is housed in a TO-204 (TO-3) through-hole package and features a transition frequency of 8 MHz, making it suitable for switchmode power supply applications within the SWITCHMODE™ series.

The BUV22 carries an obsolete product status. Locating equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or repair requirements for legacy systems utilizing this transistor.

Substiute Parts

BUV22

onsemiIn Stock: 844BUV22 Datasheet

Current PartRFQ

BUV22G

onsemiIn Stock: 1015BUV22G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BUV22 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Parameters (Required Match):

• Transistor Type: NPN
• Voltage - Collector Emitter Breakdown (Max): 250 V
• Current - Collector (Ic) (Max): 40 A
• Power - Max: 250 W
• Frequency - Transition: 8 MHz
• Vce Saturation (Max) @ Ib, Ic: 1.5V @ 2.5A, 20A
• DC Current Gain (hFE) (Min) @ Ic, Vce: 20 @ 10A, 4V
• Current - Collector Cutoff (Max): 3 mA
• Operating Temperature Range: -65°C to 200°C (TJ)

Mechanical Parameters (Required Match):

• Mounting Type: Through Hole
• Package / Case: TO-204AE

The BUV22G meets all specified electrical and mechanical parameters and is classified as a direct manufacturer equivalent within the same SWITCHMODE™ series.

Parameter Comparison

Engineering Selection Recommendations

The BUV22G is a direct electrical and mechanical equivalent to the BUV22. All critical performance parameters are identical, including voltage rating, current capacity, power dissipation, frequency response, and thermal operating range. Both devices utilize the same TO-204AE package and through-hole mounting configuration, ensuring pin-for-pin compatibility in existing circuit designs.

The BUV22G carries an active product status, whereas the BUV22 is obsolete. This distinction is significant for long-term component sourcing and supply chain continuity. The BUV22G also achieves ROHS3 compliance, meeting current environmental and regulatory standards, whereas the BUV22 does not comply with RoHS requirements.

For new designs or component replacement in legacy systems, the BUV22G is the appropriate selection. The electrical performance and thermal characteristics remain unchanged, supporting direct substitution without circuit redesign or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can the BUV22G be used as a direct replacement for the BUV22 in existing circuits?

A: Yes. The BUV22G is electrically and mechanically identical to the BUV22. All electrical parameters, including voltage rating, current capacity, power dissipation, frequency response, and temperature range, are matched. The TO-204AE package and through-hole mounting configuration are identical, enabling direct pin-for-pin substitution without circuit modification.

Q: What is the primary difference between the BUV22 and BUV22G?

A: The BUV22 is classified as obsolete, while the BUV22G carries an active product status. Additionally, the BUV22G achieves ROHS3 compliance, whereas the BUV22 does not. Electrical and mechanical specifications are identical between the two devices.

Q: Are there any packaging differences between the BUV22 and BUV22G?

A: Both devices are housed in the TO-204AE package and are configured for through-hole mounting. No packaging differences exist. The BUV22G is supplied in tray packaging, while the BUV22 packaging type is not specified in the available data.

Q: Is the BUV22G suitable for switchmode power supply applications?

A: Yes. The BUV22G is part of the SWITCHMODE™ series and is designed for high-power switching applications. It meets all electrical requirements for switchmode power supply circuits, including the 250 V voltage rating, 40 A current capacity, 250 W power dissipation, and 8 MHz transition frequency.

Q: What is the operating temperature range for the BUV22G?

A: The BUV22G operates across a junction temperature range of -65°C to 200°C (TJ), identical to the BUV22. This wide temperature range supports operation in demanding thermal environments.

Q: Does the BUV22G meet current environmental compliance standards?

A: Yes. The BUV22G is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The BUV22, by contrast, is RoHS non-compliant.