HSMS-281E-TR2G Equivalent & Substitute Parts

Part Overview

The HSMS-281E-TR2G is an RF Schottky diode manufactured by Broadcom Limited, configured as a 1 Pair Common Anode diode array in SOT-323 surface mount packaging. This component is rated for 20V peak reverse voltage with a maximum current of 1A and features low capacitance (1.2pF @ 0V, 1MHz) and low resistance (15Ohm @ 5mA, 1MHz) characteristics suitable for RF applications.

The HSMS-281E-TR2G is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

HSMS-281E-TR2G

Broadcom LimitedIn Stock: 1070HSMS-281E-TR2G Datasheet

Current PartRFQ

1PS70SB86,115

Nexperia USA Inc.In Stock: 29901PS70SB86,115 Datasheet

MFR RecommendedRFQ

MMBD717LT1G

onsemiIn Stock: 20188MMBD717LT1G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HSMS-281E-TR2G is determined by the following critical parameters:

• Diode Configuration: Must be 1 Pair Common Anode Schottky diode array
• Package Type: Must be SC-70 or SOT-323 surface mount package
• Voltage Rating: Peak reverse voltage must be equal to or greater than 20V
• Current Capability: Must support the application's current requirements
• Moisture Sensitivity: MSL rating of 1 or equivalent
• Electrical Characteristics: Forward voltage, reverse leakage, and capacitance must be compatible with RF circuit requirements

Two substitute parts meet these criteria and are available as active products with current manufacturing status.

Parameter Comparison

Engineering Selection Recommendations

1PS70SB86,115 (Nexperia USA Inc.)

This substitute is an active product with ROHS3 compliance and AEC-Q100 automotive qualification. The 15V reverse voltage rating is lower than the original 20V specification. Current capability is limited to 30mA per diode, which represents a significant reduction from the 1A maximum of the HSMS-281E-TR2G. Selection of this part requires confirmation that the application operates within 15V reverse voltage and 30mA current constraints. Maximum junction temperature is 125°C, which is 25°C lower than the original part.

MMBD717LT1G (onsemi)

This substitute is an active product with ROHS3 compliance and maintains the 20V reverse voltage rating of the original part. Operating temperature range extends from -55°C to 150°C, matching the upper limit of the original specification. Current rating is not specified in the provided data. Forward voltage characteristics (370 mV @ 1 mA) differ from the original part's 15Ohm resistance specification. This part is suitable for applications requiring voltage rating parity with the HSMS-281E-TR2G.

Both substitutes maintain SOT-323 packaging, MSL-1 moisture sensitivity rating, and REACH compliance status. Selection between these parts depends on specific application requirements regarding voltage rating, current capacity, and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can the 1PS70SB86,115 be used as a direct replacement for the HSMS-281E-TR2G?

A: The 1PS70SB86,115 shares the same package type (SOT-323) and diode configuration (1 Pair Common Anode Schottky). However, the 15V reverse voltage rating is lower than the original 20V specification, and the 30mA current rating is significantly reduced from 1A. This part is suitable only if the application operates within these reduced electrical limits.

Q: What are the key differences between the two substitute parts?

A: The MMBD717LT1G maintains the 20V reverse voltage rating of the original part and offers a wider operating temperature range (-55°C to 150°C). The 1PS70SB86,115 has a lower 15V voltage rating and 30mA current limit but includes automotive qualification (AEC-Q100). Selection depends on whether voltage rating or current capacity is the limiting factor in your application.

Q: Are both substitute parts available in the same packaging?

A: Yes. Both the 1PS70SB86,115 and MMBD717LT1G are supplied in SC-70, SOT-323 surface mount packaging, matching the original HSMS-281E-TR2G package type. Both maintain MSL-1 moisture sensitivity rating.

Q: Do the substitute parts have the same compliance certifications as the original?

A: Both substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of the original part. The 1PS70SB86,115 additionally carries AEC-Q100 automotive qualification. The original part's compliance status for these certifications was not specified in the provided data.

Q: What should I verify before selecting a substitute?

A: Verify that your application's reverse voltage requirement does not exceed the substitute part's rating. Confirm that the maximum current per diode meets your circuit requirements. For the 1PS70SB86,115, confirm operation within the 125°C maximum junction temperature. For the MMBD717LT1G, verify compatibility with the specified forward voltage characteristics.