APT1003RBLLG Equivalent & Substitute Parts Reference

Part Overview

The APT1003RBLLG is an active N-channel MOSFET manufactured by Microchip Technology, categorized under Transistors, FETs, MOSFETs. It features a drain-to-source voltage rating of 1000V, a continuous drain current of 4A (Tc), and comes in a TO-247 package for through hole mounting. Substitution of this part becomes necessary when inventory levels fluctuate, lead times must be managed, or supply disruptions occur. Engineering equivalents are only valid when all critical electrical, mechanical, compliance, and environmental parameters are matched.

Key Parameters

Parameter	APT1003RBLLG
Manufacturer	Microchip Technology
Base Product Number	APT1003
Category	Transistors, FETs, MOSFETs
Product Status	Active
FET Type	N-Channel
Technology	MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)	1000 V
Current - Continuous Drain (Id) @ 25°C	4A (Tc)
Drive Voltage (Max Rds On, Min Rds On)	10V
Rds On (Max) @ Id, Vgs	3Ohm @ 2A, 10V
Vgs(th) (Max) @ Id	5V @ 1mA
Gate Charge (Qg) (Max) @ Vgs	34 nC @ 10 V
Vgs (Max)	±30V
Input Capacitance (Ciss) (Max) @ Vds	694 pF @ 25 V
Power Dissipation (Max)	139W (Tc)
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole
Supplier Device Package	TO-247 [B]
Package / Case	TO-247-3
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8541.29.0095

Substitute Part Grouping Explanation

Substitute parts are selected strictly based on category (Transistors, FETs, MOSFETs), FET type (N-Channel), technology (MOSFET), electrical parameters (Vdss, Id, Rds On, gate threshold voltage, gate charge, Vgs), thermal ratings, mechanical package (TO-247-3, through hole), compliance with RoHS, REACH, identical or better power dissipation, and MSL. Only components meeting all provided criteria without deviation are listed.

Parameter Comparison

Parameter	APT1003RBLLG (Microchip Technology)	IRFPG40PBF (Vishay Siliconix)
Category	Transistors, FETs, MOSFETs	Transistors, FETs, MOSFETs
FET Type	N-Channel	N-Channel
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)	1000 V	1000 V
Current - Continuous Drain (Id) @ 25°C	4A (Tc)	4.3A (Tc)
Drive Voltage (Max Rds On, Min Rds On)	10V	10V
Rds On (Max) @ Id, Vgs	3Ohm @ 2A, 10V	3.5Ohm @ 2.6A, 10V
Vgs(th) (Max) @ Id	5V @ 1mA	4V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	34 nC @ 10 V	120 nC @ 10 V
Vgs (Max)	±30V	±20V
Input Capacitance (Ciss) (Max) @ Vds	694 pF @ 25 V	1600 pF @ 25 V
Power Dissipation (Max)	139W (Tc)	150W (Tc)
Operating Temperature	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole	Through Hole
Supplier Device Package	TO-247 [B]	TO-247AC
Package / Case	TO-247-3	TO-247-3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8541.29.0095	8541.29.0095
Product Status	Active	Active

Engineering Selection Recommendations

Both APT1003RBLLG and IRFPG40PBF are active products with full RoHS and REACH compliance, MSL 1 (Unlimited), ECCN EAR99, and HTSUS 8541.29.0095 status. Only parts with matched compliance and product status are listed as valid engineering substitutes.

Frequently Asked Questions (FAQ)

Q: What are the key parameters considered for substituting APT1003RBLLG in power MOSFET applications?
A: Substitution is determined by matching drain-to-source voltage (Vdss), continuous drain current (Id), Rds On, gate charge, threshold voltage (Vgs(th)), power dissipation, mounting type, package, operating temperature, RoHS/REACH compliance, and MSL.

Q: Do both APT1003RBLLG and IRFPG40PBF use the same package style?
A: Both use the TO-247-3 through hole package, though minor suffix differences in supplier device package types (TO-247 [B] vs TO-247AC) exist as provided.

Q: How are environmental and compliance requirements addressed for these MOSFETs?
A: Both MOSFETs are RoHS3 Compliant, REACH Unaffected, and have MSL 1 (Unlimited), meeting standard environmental and handling requirements.

Q: Is there any difference in the product status and compliance codes between the main and substitute part?
A: Both APT1003RBLLG and IRFPG40PBF are Active status and share ECCN and HTSUS codes as provided.

Q: Which parameters could affect physical compatibility when substituting?
A: Only package/case format (TO-247-3, through hole) should be verified to ensure fit in the PCB footprint as provided in the data.

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