BSP320SL6327HTSA1 Equivalent & Substitute Parts

Part Overview

The BSP320SL6327HTSA1 is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 60V drain-to-source voltage with 2.9A continuous drain current at 25°C. This device is packaged in SOT-223 (PG-SOT223-4-21) surface mount configuration and is classified as obsolete product status. Due to its obsolete classification, identifying equivalent and substitute parts is essential for design continuity, production planning, and long-term component sourcing strategy. Substitute parts must maintain compatibility across electrical performance, thermal characteristics, and mechanical packaging specifications.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Drain to Source Voltage (Vdss)	60	V
Current - Continuous Drain (Id) @ 25°C	2.9	A (Ta)
Rds On (Max) @ Id, Vgs	120	mOhm @ 2.9A, 10V
Gate Charge (Qg) (Max) @ Vgs	12	nC @ 10V
Vgs(th) (Max) @ Id	4	V @ 20µA
Input Capacitance (Ciss) (Max) @ Vds	340	pF @ 25V
Power Dissipation (Max)	1.8	W (Ta)
Operating Temperature Range	-55 to 150	°C (TJ)
Mounting Type	Surface Mount	—
Package / Case	TO-261-4, TO-261AA	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the BSP320SL6327HTSA1 is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

Drain to Source Voltage (Vdss): Must equal or exceed 60V
Continuous Drain Current (Id): Must support minimum 2.9A at 25°C
On-State Resistance (Rds On): Must not exceed 120mOhm at specified gate voltage
Gate Charge (Qg): Lower values preferred for switching efficiency
Operating Temperature Range: Must encompass -55°C to 150°C minimum
Package Type: SOT-223 (TO-261-4, TO-261AA) surface mount configuration
Moisture Sensitivity Level: MSL 1 (Unlimited) required

Secondary Compatibility Parameters:

Vgs(th) threshold voltage alignment
Input Capacitance (Ciss) characteristics
Power dissipation capability
Product status and compliance certifications

All four substitute parts listed below meet or exceed the primary substitution criteria while maintaining SOT-223 package compatibility and MSL 1 moisture sensitivity rating.

Parameter Comparison

Parameter	BSP320SL6327HTSA1	IRFL014NTRPBF	IRLL014TRPBF	NTF3055-100T1G	STN3NF06L
Manufacturer	Infineon Technologies	Infineon Technologies	Vishay Siliconix	onsemi	STMicroelectronics
FET Type	N-Channel	N-Channel	N-Channel	N-Channel	N-Channel
Vdss (V)	60	55	60	60	60
Id @ 25°C (A)	2.9 (Ta)	1.9 (Ta)	2.7 (Tc)	3.0 (Ta)	4.0 (Tc)
Rds On (Max) (mOhm)	120 @ 2.9A, 10V	160 @ 1.9A, 10V	200 @ 1.6A, 5V	110 @ 1.5A, 10V	100 @ 1.5A, 10V
Vgs(th) (Max) (V)	4 @ 20µA	4 @ 250µA	2 @ 250µA	4 @ 250µA	2.8 @ 250µA
Qg (Max) (nC)	12 @ 10V	11 @ 10V	8.4 @ 5V	22 @ 10V	9 @ 5V
Ciss (Max) (pF)	340 @ 25V	190 @ 25V	400 @ 25V	455 @ 25V	340 @ 25V
Power Dissipation (Max) (W)	1.8 (Ta)	1.0 (Ta)	2.0 (Ta), 3.1 (Tc)	1.3 (Ta)	3.3 (Tc)
Operating Temperature (°C)	-55 to 150	-55 to 150	-55 to 150	-55 to 175	-55 to 150
Package	SOT-223	SOT-223	SOT-223	SOT-223	SOT-223
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Recommendation: NTF3055-100T1G (onsemi)

The NTF3055-100T1G provides the closest electrical match to the BSP320SL6327HTSA1. It maintains 60V Vdss rating, delivers 3.0A continuous drain current (exceeding the 2.9A requirement), and features 110mOhm Rds On at 10V gate voltage (lower than the 120mOhm specification). The device is ROHS3 compliant, carries active product status, and supports the extended operating temperature range to 175°C. Gate charge of 22nC is higher than the original part, which may impact switching frequency applications. Power dissipation capability of 1.3W (Ta) is lower than the original 1.8W, requiring thermal design verification in high-power applications.

Secondary Recommendation: STN3NF06L (STMicroelectronics)

The STN3NF06L offers superior electrical performance with 4.0A continuous drain current and 100mOhm Rds On at 10V. This part provides the highest current capability among substitutes and lowest on-state resistance, resulting in reduced power dissipation in switching applications. ROHS3 compliance and active product status ensure long-term availability. The STripFET™ II series designation indicates optimized switching characteristics. Power dissipation of 3.3W (Tc) exceeds the original specification, providing thermal margin. Gate charge of 9nC at 5V drive voltage supports efficient switching at lower gate voltages.

Tertiary Recommendation: IRLL014TRPBF (Vishay Siliconix)

The IRLL014TRPBF maintains 60V Vdss rating with 2.7A continuous drain current, closely matching the original 2.9A specification. Power dissipation of 2.0W (Ta) and 3.1W (Tc) exceeds the original 1.8W rating. Rds On of 200mOhm at 1.6A, 5V is higher than the original specification and requires circuit-level verification. Lower Vgs(th) of 2V and reduced gate charge of 8.4nC at 5V support lower-voltage gate drive implementations. ROHS3 compliance and active status confirm production availability.

Not Recommended: IRFL014NTRPBF (Infineon Technologies)

The IRFL014NTRPBF operates at reduced 55V Vdss rating and delivers only 1.9A continuous drain current, both below the BSP320SL6327HTSA1 specifications. While manufactured by the same company as the original part, the lower current rating and voltage rating make this substitute unsuitable for direct replacement in applications requiring full 60V/2.9A performance envelope.

Compliance and Certification Status:

All four substitute parts carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original part. All active substitutes are ROHS3 compliant, supporting environmental and regulatory requirements. The NTF3055-100T1G and STN3NF06L provide extended operating temperature ranges (175°C and 150°C respectively), offering thermal design flexibility. REACH compliance status is confirmed for all parts where specified.

Frequently Asked Questions (FAQ)

Q1: Can IRFL014NTRPBF replace BSP320SL6327HTSA1 in my application?

No. The IRFL014NTRPBF operates at 55V maximum drain-to-source voltage and delivers 1.9A continuous drain current. The BSP320SL6327HTSA1 is rated for 60V and 2.9A. Using the IRFL014NTRPBF would reduce both voltage and current margins, creating risk of device failure under rated operating conditions. This part is not suitable for direct substitution.

Q2: What is the primary difference between NTF3055-100T1G and STN3NF06L?

Both parts exceed the BSP320SL6327HTSA1 electrical specifications. The NTF3055-100T1G delivers 3.0A at 110mOhm Rds On with 22nC gate charge. The STN3NF06L delivers 4.0A at 100mOhm Rds On with 9nC gate charge. The STN3NF06L provides higher current capability and lower gate charge, making it superior for high-frequency switching applications. The NTF3055-100T1G provides closer electrical matching to the original part. Selection depends on application switching frequency and thermal requirements.

Q3: Are all substitute parts available in the same SOT-223 package?

Yes. All four substitute parts are packaged in SOT-223 (TO-261-4, TO-261AA) surface mount configuration, matching the original BSP320SL6327HTSA1 package. PCB layout and footprint compatibility is maintained across all substitutes. No mechanical redesign is required for package accommodation.

Q4: What is the impact of higher gate charge in NTF3055-100T1G?

Gate charge of 22nC at 10V (compared to 12nC in the original part) requires higher gate drive current or longer switching transition times. In applications operating at high switching frequencies (>100kHz), this may increase gate drive power dissipation and switching losses. Circuit-level gate drive verification is recommended for high-frequency applications. Lower-frequency applications (<50kHz) are unaffected.

Q5: Can I use IRLL014TRPBF if my circuit operates below 2.7A?

The IRLL014TRPBF is electrically compatible with the BSP320SL6327HTSA1 for applications operating below 2.7A continuous drain current. However, the higher Rds On of 200mOhm at 1.6A, 5V (versus 120mOhm in the original) will increase on-state power dissipation. Thermal design verification is required to confirm that junction temperature remains within acceptable limits. The part is suitable only if thermal analysis confirms acceptable operating conditions.

Q6: What is the significance of MSL 1 (Unlimited) rating?

MSL 1 (Unlimited) moisture sensitivity level indicates the device can be stored indefinitely without moisture absorption concerns and does not require baking before reflow soldering. All substitute parts carry this same MSL 1 rating as the original BSP320SL6327HTSA1, ensuring identical moisture handling procedures and storage requirements. No special moisture control measures are required beyond standard ESD precautions.

Q7: Why is the BSP320SL6327HTSA1 classified as obsolete?

Obsolete product status indicates the manufacturer (Infineon Technologies) has discontinued production and will not accept new orders. This classification necessitates identifying active substitute parts for design continuity and production planning. All four recommended substitutes carry active product status, ensuring long-term availability and continued manufacturing support.

Q8: Should I select based on lowest Rds On or highest current rating?

Selection depends on application requirements. For power dissipation-critical applications, lower Rds On (STN3NF06L at 100mOhm) reduces on-state losses. For current-margin applications, higher current rating (STN3NF06L at 4.0A) provides operational headroom. For closest electrical matching to the original part, NTF3055-100T1G provides balanced performance. Thermal analysis and circuit simulation are recommended to determine the optimal substitute for specific application conditions.

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