BSP324L6327HTSA1 Equivalent & Substitute Parts

Part Overview

The BSP324L6327HTSA1 is an N-Channel MOSFET manufactured by Infineon Technologies, designed for surface mount applications in the SOT223-4 package. This device operates at 400V drain-to-source voltage with a continuous drain current rating of 170mA and maximum power dissipation of 1.8W. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain identical electrical performance and mechanical compatibility to ensure direct replacement capability.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Drain to Source Voltage (Vdss)	400	V
Continuous Drain Current (Id) @ 25°C	170	mA
On-State Resistance (Rds On Max) @ 170mA, 10V	25	Ohm
Gate Threshold Voltage (Vgs(th) Max) @ 94µA	2.3	V
Power Dissipation (Max)	1.8	W
Operating Temperature Range	-55 to 150	°C
Package Type	SOT223-4 (TO-261-4, TO-261AA)	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the BSP324L6327HTSA1 is based on strict equivalence of the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

Drain-to-source voltage (Vdss): 400V
Continuous drain current (Id): 170mA at 25°C
On-state resistance (Rds On): 25 Ohm maximum at specified conditions
Gate threshold voltage (Vgs(th)): 2.3V maximum
Power dissipation: 1.8W maximum
Operating temperature range: -55°C to 150°C

Mechanical Equivalence Criteria:

Package: SOT223-4 (TO-261-4, TO-261AA)
Mounting: Surface Mount
Pin configuration: 4-pin

The BSP324H6327XTSA1 meets all specified electrical parameters and maintains identical package and mounting specifications, qualifying it as a parametric equivalent. The primary distinction is product status: BSP324L6327HTSA1 is obsolete, while BSP324H6327XTSA1 is active production.

Parameter Comparison

Parameter	BSP324L6327HTSA1	BSP324H6327XTSA1	Match
Manufacturer	Infineon Technologies	Infineon Technologies	✓
FET Type	N-Channel	N-Channel	✓
Vdss	400 V	400 V	✓
Id @ 25°C	170 mA	170 mA	✓
Rds On (Max) @ 170mA, 10V	25 Ohm	25 Ohm	✓
Vgs(th) (Max) @ 94µA	2.3 V	2.3 V	✓
Gate Charge (Qg) @ 10V	5.9 nC	5.9 nC	✓
Input Capacitance (Ciss) @ 25V	154 pF	154 pF	✓
Power Dissipation (Max)	1.8 W	1.8 W	✓
Operating Temperature	-55 to 150 °C	-55 to 150 °C	✓
Package	SOT223-4	SOT223-4	✓
Mounting Type	Surface Mount	Surface Mount	✓
Product Status	Obsolete	Active	—
Packaging Format	Standard	Tape & Reel (TR)	—
RoHS Status	Not specified	ROHS3 Compliant	—

Engineering Selection Recommendations

The BSP324H6327XTSA1 is the direct parametric equivalent for the obsolete BSP324L6327HTSA1. Selection of the substitute part is based on the following engineering factors:

Product Status: The BSP324L6327HTSA1 is classified as obsolete. The BSP324H6327XTSA1 maintains active production status, ensuring long-term availability and supply chain continuity.

Electrical Compatibility: All critical electrical parameters are identical, including voltage rating, current capacity, on-state resistance, and thermal characteristics. Direct functional replacement is supported without circuit modification.

Mechanical Compatibility: Both parts utilize the SOT223-4 package with identical pin configuration and surface mount mounting type. PCB layout and assembly processes require no modification.

Compliance: The BSP324H6327XTSA1 is ROHS3 compliant, meeting current environmental and regulatory requirements. Both parts maintain REACH unaffected status and EAR99 export classification.

Packaging Format: The substitute is supplied in Tape & Reel format, standard for high-volume production. This does not affect electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can BSP324H6327XTSA1 be used as a direct replacement for BSP324L6327HTSA1 in existing designs?

A: Yes. All electrical parameters, package specifications, and pin configurations are identical. No circuit modifications or PCB redesign is required for direct substitution.

Q: What is the primary reason for substitution?

A: The BSP324L6327HTSA1 is obsolete. The BSP324H6327XTSA1 is the active equivalent from the same manufacturer, ensuring continued availability and supply chain support.

Q: Are there differences in packaging that affect assembly?

A: Both parts use the SOT223-4 surface mount package. The substitute is supplied in Tape & Reel format, which is standard for production quantities. This does not affect component performance or PCB assembly compatibility.

Q: Do the parts have different thermal or electrical performance?

A: No. Maximum power dissipation, operating temperature range, on-state resistance, and all other electrical specifications are identical between the two parts.

Q: Is the substitute part RoHS compliant?

A: Yes. The BSP324H6327XTSA1 is ROHS3 compliant. The original part's RoHS status was not specified in available documentation.

Q: Can both parts be used interchangeably in the same production run?

A: Yes, provided the design accepts both part numbers. All electrical and mechanical specifications are equivalent, supporting interchangeable use.

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