BSS670S2LL6327HTSA1 Equivalent & Substitute Parts

Part Overview

The BSS670S2LL6327HTSA1 is an N-Channel MOSFET manufactured by Infineon Technologies, part of the OptiMOS™ series. This device is rated for 55V drain-to-source voltage with a continuous drain current of 540mA at 25°C and maximum power dissipation of 360mW. The component is housed in a SOT-23-3 surface mount package.

The BSS670S2LL6327HTSA1 is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this MOSFET.

Substiute Parts

BSS670S2LL6327HTSA1

Infineon TechnologiesIn Stock: 1012BSS670S2LL6327HTSA1 Datasheet

Current PartRFQ

BSS670S2LH6327XTSA1

Infineon TechnologiesIn Stock: 236267BSS670S2LH6327XTSA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BSS670S2LL6327HTSA1 is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• FET Type: N-Channel
• Drain to Source Voltage (Vdss): 55V
• Continuous Drain Current (Id) @ 25°C: 540mA
• On-State Resistance (Rds On): 650mOhm @ 270mA, 10V
• Power Dissipation: 360mW (Ta)
• Gate Threshold Voltage (Vgs(th)): 2V @ 2.7µA
• Gate Charge (Qg): 2.26nC @ 10V
• Input Capacitance (Ciss): 75pF @ 25V
• Maximum Gate Voltage (Vgs): ±20V
• Operating Temperature Range: -55°C to 150°C (TJ)

Mechanical Equivalence Criteria:

• Package Type: SOT-23-3 (TO-236-3, SC-59)
• Mounting Type: Surface Mount
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The substitute part BSS670S2LH6327XTSA1 meets all electrical and mechanical equivalence criteria and is therefore a direct substitute for the obsolete BSS670S2LL6327HTSA1.

Parameter Comparison

Engineering Selection Recommendations

The BSS670S2LH6327XTSA1 is the recommended substitute for the obsolete BSS670S2LL6327HTSA1 based on the following engineering factors:

Product Status: The substitute part is classified as Active, ensuring ongoing availability and manufacturing support from Infineon Technologies. The main part is Obsolete, making the substitute necessary for continued supply chain operations.

Regulatory Compliance: Both parts maintain identical REACH Status (REACH Unaffected) and ECCN classification (EAR99), ensuring no change in regulatory or export control requirements.

RoHS Compliance: The substitute part is ROHS3 Compliant, meeting current environmental and hazardous substance restrictions.

Electrical and Mechanical Equivalence: All electrical parameters, including voltage ratings, current ratings, on-state resistance, gate characteristics, and thermal specifications, are identical. The package type, mounting configuration, and moisture sensitivity level are unchanged.

Inventory Availability: The substitute part has significantly higher inventory availability (236,200 pieces) compared to the main part (967 pieces), supporting production continuity and reducing supply chain risk.

Frequently Asked Questions (FAQ)

Q: Can BSS670S2LH6327XTSA1 be used as a direct replacement for BSS670S2LL6327HTSA1 in existing designs?

A: Yes. The BSS670S2LH6327XTSA1 is a direct electrical and mechanical equivalent. All electrical parameters, including voltage ratings, current ratings, on-state resistance, and thermal characteristics, are identical. The package type (SOT-23-3) and mounting configuration (surface mount) are unchanged. No design modifications are required.

Q: What is the difference between the two part numbers?

A: The part numbers differ in their suffix designations (LL6327HTSA1 versus LH6327XTSA1), which reflect internal Infineon manufacturing and packaging variations. These designations do not affect electrical performance or functional equivalence. The substitute part is manufactured to the same OptiMOS™ series specifications.

Q: Are there any compatibility issues with PCB assembly or soldering?

A: No. Both parts use identical SOT-23-3 packaging (also designated TO-236-3 or SC-59). PCB footprints, solder pad layouts, and assembly processes remain unchanged. Standard surface mount assembly procedures apply to both parts.

Q: Why is the main part classified as Obsolete?

A: The BSS670S2LL6327HTSA1 has reached end-of-life status with Infineon Technologies. The BSS670S2LH6327XTSA1 represents the current active production equivalent within the OptiMOS™ series, ensuring long-term availability and manufacturing support.

Q: Is the substitute part available in the same packaging options?

A: The substitute part is available in Cut Tape (CT) and Digi-Reel® packaging formats. Both parts maintain identical component specifications and are suitable for automated assembly processes.

Q: Are there any thermal or performance differences between the two parts?

A: No. Both parts have identical maximum power dissipation (360mW at Ta), operating temperature range (-55°C to 150°C TJ), and thermal characteristics. Performance in thermal management applications remains unchanged.

Q: What certifications and compliance standards apply to the substitute part?

A: The substitute part maintains REACH Unaffected status, EAR99 export classification, and ROHS3 compliance. Moisture sensitivity level remains at MSL 1 (Unlimited). All regulatory and environmental requirements are equivalent to the main part.