Is there a pin-compatible replacement for HE2210M533R?

Currently, no pin-compatible replacements have been identified. All reviewed candidates in the SOT-23-5 package have different pin assignments and require PCB layout changes.

What risks should I check before replacing HE2210M533R?

The most critical risk is the maximum input voltage; the target handles 50V, while many alternatives are rated for 20V or less. You must also verify the pinout is compatible with your PCB layout, as it often differs.

HE2210M533R Alternatives, Datasheet & Cross Reference | HEERMICR SEMICONDUCTOR CO.,LTD

HE2210M533R is a high-voltage (50V) 400mA LDO in a SOT-23-5 package. Finding a direct, pin-compatible replacement is challenging due to its high input voltage rating and specific pinout.

AI replacement insight

Electrical riskhigh

Most alternatives have a much lower max input voltage, posing a severe overvoltage risk.

Package riskhigh

While the package is the same, the pinout is different, requiring a PCB redesign.

Sourcing riskmedium

High-voltage LDOs in this package are less common than low-voltage versions.

Can it be replaced directly?

No direct, pin-compatible replacements were found. All candidates have significantly lower input voltage ratings and different pinouts, requiring board redesign and careful electrical review.

Best replacement path

Search for LDOs with Vin > 50V in a SOT-23-5 package, then verify pinout. A board redesign will likely be necessary.

Main risk

The primary risk is catastrophic failure from overvoltage if a low-voltage substitute is used in an application designed for the target's 50V rating.

Recommended alternatives

Functional alternative with different pinout and lower max input voltage (15V); requires board redesign.

View details

Alternative comparison matrix

Feature / factor	HE2210M533R	SSP7603P33M5R	TPMIC5219-3.3YM5	Compatibility / risk
Package	SOT-23-5	SOT23-5	SOT-23-5	SOT23-5 / SOT-23-5 — Package matches, but pinout does not.; TPMIC5219-3.3YM5: Package matches, but pinout does not.
Pinout	GND,IN,OUT,EN,NC	Different	Different	Different — Pin functions are not compatible; requires PCB redesign.; TPMIC5219-3.3YM5: Pin functions are not compatible; requires PCB redesign.
Voltage	50V	15V	20V	15V / 20V — Candidate max input voltage is significantly lower.; TPMIC5219-3.3YM5: Candidate max input voltage is significantly lower.
Current	400mA	500mA	500mA	500mA — Candidate offers higher output current.; TPMIC5219-3.3YM5: Candidate offers higher output current.

Application & sourcing insights

Questions & answers

No direct drop-in alternative was found. Alternatives like TPMIC5219-3.3YM5 exist but have much lower voltage ratings (20V) and different pinouts, requiring significant design changes and validation.