NTLJS2103PTAG P-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The NTLJS2103PTAG is a P-Channel MOSFET manufactured by onsemi, rated for 12V drain-to-source voltage with 3.5A continuous drain current at 25°C. The device is housed in a 6-WDFN (2x2) surface mount package with an exposed pad and is designed for low on-resistance switching applications with a maximum power dissipation of 700mW.

The NTLJS2103PTAG carries an Obsolete product status. Identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and field replacement applications.

Key Parameters

Parameter	Value	Unit
FET Type	P-Channel	—
Drain to Source Voltage (Vdss)	12	V
Current - Continuous Drain (Id) @ 25°C	3.5	A
Rds On (Max) @ 3A, 4.5V	40	mOhm
Power Dissipation (Max)	700	mW
Operating Temperature Range	-55 to 150	°C (TJ)
Package Type	6-WDFN (2x2) Exposed Pad	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitute parts for the NTLJS2103PTAG are identified based on electrical and mechanical parameter equivalence. The following criteria determine substitution validity:

Electrical Parameters (Must Match):

FET Type: P-Channel
Drain to Source Voltage (Vdss): 12V
Continuous Drain Current (Id) @ 25°C: 3.5A (Ta)
On-Resistance (Rds On) @ 3A, 4.5V: 40mOhm
Power Dissipation (Max): 700mW (Ta)
Operating Temperature Range: -55°C to 150°C (TJ)

Mechanical Parameters (Must Match):

Package Type: 6-WDFN (2x2) Exposed Pad
Mounting Type: Surface Mount

The NTLJS2103PTBG meets all electrical and mechanical equivalence criteria and is therefore a valid substitute for the NTLJS2103PTAG.

Parameter Comparison

Parameter	NTLJS2103PTAG	NTLJS2103PTBG	Match
Manufacturer	onsemi	onsemi	Yes
FET Type	P-Channel	P-Channel	Yes
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	Yes
Drain to Source Voltage (Vdss)	12 V	12 V	Yes
Current - Continuous Drain (Id) @ 25°C	3.5A (Ta)	3.5A (Ta)	Yes
Rds On (Max) @ 3A, 4.5V	40mOhm	40mOhm	Yes
Vgs(th) (Max) @ 250µA	800mV	800mV	Yes
Gate Charge (Qg) (Max) @ 4.5V	15 nC	15 nC	Yes
Vgs (Max)	±8V	±8V	Yes
Input Capacitance (Ciss) (Max) @ 6V	1157 pF	1157 pF	Yes
Power Dissipation (Max)	700mW (Ta)	700mW (Ta)	Yes
Operating Temperature Range	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	Yes
Package / Case	6-WDFN Exposed Pad	6-WDFN Exposed Pad	Yes
Mounting Type	Surface Mount	Surface Mount	Yes
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Yes
REACH Status	REACH Unaffected	REACH Unaffected	Yes
ECCN	EAR99	EAR99	Yes
HTSUS	8541.21.0095	8541.21.0095	Yes
Product Status	Obsolete	Active	Different
Packaging	Bulk	Tape & Reel (TR)	Different
RoHS Status	Not specified	ROHS3 Compliant	Different

Engineering Selection Recommendations

The NTLJS2103PTBG is the direct electrical and mechanical equivalent of the NTLJS2103PTAG. All critical electrical parameters, including voltage rating, current capacity, on-resistance, and thermal characteristics, are identical. Both devices share the same package footprint and mounting requirements.

The NTLJS2103PTBG carries an Active product status, ensuring long-term availability and continued manufacturing support. The substitute part is ROHS3 Compliant, providing enhanced environmental compliance compared to the obsolete NTLJS2103PTAG.

The primary difference between the two parts is packaging format: the NTLJS2103PTAG is supplied in bulk, while the NTLJS2103PTBG is supplied in Tape & Reel (TR) format. This packaging difference does not affect electrical performance or PCB-level compatibility.

For new designs and production applications requiring the NTLJS2103PTAG, the NTLJS2103PTBG is the recommended substitute without design modification.

Frequently Asked Questions (FAQ)

Q: Can the NTLJS2103PTBG be used as a direct replacement for the NTLJS2103PTAG on existing PCBs?

A: Yes. The NTLJS2103PTBG is electrically and mechanically identical to the NTLJS2103PTAG. Both devices use the same 6-WDFN (2x2) package footprint with exposed pad. No PCB layout changes are required.

Q: What is the difference between the bulk and Tape & Reel packaging formats?

A: Bulk packaging (NTLJS2103PTAG) supplies components loose or in trays, suitable for manual assembly or small-volume applications. Tape & Reel packaging (NTLJS2103PTBG) supplies components on continuous tape for automated pick-and-place assembly. Both formats contain identical components with identical electrical specifications.

Q: Why is the NTLJS2103PTAG listed as Obsolete?

A: The NTLJS2103PTAG has reached end-of-life status with onsemi. The NTLJS2103PTBG remains in active production and is the current manufacturing equivalent. For ongoing supply chain continuity, the NTLJS2103PTBG is the recommended part selection.

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

A: No. Both parts have identical thermal characteristics (700mW maximum power dissipation, -55°C to 150°C operating range) and electrical specifications (12V Vdss, 3.5A continuous drain current, 40mOhm Rds On).

Q: Does the ROHS3 compliance of the NTLJS2103PTBG affect compatibility?

A: No. ROHS3 compliance indicates enhanced environmental and material standards. This does not affect electrical performance or physical compatibility. The NTLJS2103PTBG is fully compatible with designs originally specified for the NTLJS2103PTAG.

Q: Can these parts be used interchangeably in high-frequency switching applications?

A: Yes. Both parts have identical gate charge (15 nC @ 4.5V) and input capacitance (1157 pF @ 6V), making them suitable for identical switching frequency applications.

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