Is there a pin-compatible replacement for IR2101STRPBF?

IRS21867STRPBF is a potential pin-compatible upgrade. Pinout should be verified against your board layout, as it offers much higher current which may affect performance.

What risks should I check before replacing IR2101STRPBF?

Key risks include pinout differences, control logic changes (independent vs. dependent inputs), and variations in timing like propagation delay and deadtime. Always verify the candidate's datasheet.

IR2101STRPBF Alternatives, Datasheet & Cross Reference | Infineon

IR2101STRPBF is a 600V half-bridge gate driver from Infineon in an 8-SOIC package, featuring independent high and low side inputs for flexible control in motor drive and power supply applications.

AI replacement insight

Electrical riskhigh

Control logic (independent vs dependent inputs) is a critical difference for most candidates.

Package risklow

All candidates share the same 8-SOIC package, but pinouts differ.

Can it be replaced directly?

No exact drop-in replacement is identified, but IRS21867STRPBF is a strong candidate for an upgrade with minimal changes. Other parts like IR2104 require a redesign.

Best replacement path

The most promising path is upgrading to a higher current driver like IRS21867STRPBF, which appears to be functionally and pin-compatible.

Main risk

The main risk is functional mismatch. Many similar-looking drivers have dependent inputs or are self-oscillating, which is incompatible with the IR2101's independent control.

Recommended alternatives

A potential pin-compatible upgrade with significantly higher drive current (4A) and similar timing.

View details

Alternative comparison matrix

Feature / factor	IR2101STRPBF	IRS21867STRPBF	IR2104STRPBF	Compatibility / risk
Package	8-SOIC	8-SOIC	8-SOIC	8-SOIC — Package matches.; IR2104STRPBF: Package matches.
Current	130mA/270mA	4.0A	130mA/270mA	4.0A / 130mA/270mA — Significantly higher drive current.; IR2104STRPBF: Drive current matches.
Voltage	10V ~ 20V	10V ~ 20V	-	10V ~ 20V — Supply voltage range matches.
Propagation Delay	160ns/150ns	170ns	680ns/150ns	170ns / 680ns/150ns — Propagation delay is very similar.; IR2104STRPBF: Turn-on delay is significantly longer.
Control Logic	Independent	Independent	Dependent inputs, internal deadtime	Independent / Dependent inputs, internal deadtime — Both have independent high and low side inputs.; IR2104STRPBF: Functionally different control scheme.

Application & sourcing insights

Questions & answers

IRS21867STRPBF is a strong candidate, offering a significant drive current upgrade (4A) while likely maintaining pin compatibility. However, gate resistor values may need review.