TSC5804DCP ROG Equivalent & Substitute Parts

Part Overview

The TSC5804DCP ROG is an NPN bipolar junction transistor manufactured by Taiwan Semiconductor Corporation, designed for high-voltage switching applications. This device features a 450 V collector-emitter breakdown voltage rating with a maximum collector current of 5 A and 45 W power dissipation capability in a surface mount TO-252 (DPAK) package.

The TSC5804DCP ROG is classified as obsolete, necessitating identification of equivalent substitute components for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while conforming to the same physical package footprint.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	450	V
Current - Collector (Ic) (Max)	5	A
Power - Max	45	W
Vce Saturation (Max) @ Ib, Ic	2V @ 1A, 3.5A	V
DC Current Gain (hFE) (Min) @ Ic, Vce	25 @ 200mA, 3V	—
Operating Temperature (TJ)	150	°C
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the TSC5804DCP ROG is determined by the following critical electrical and mechanical parameters:

Voltage Rating: The collector-emitter breakdown voltage must equal or exceed 450 V to maintain circuit protection margins in high-voltage applications.

Current Rating: The maximum collector current must equal or exceed 5 A to support the intended load switching requirements.

Package Compatibility: All substitute parts must use the TO-252-3 (DPAK) surface mount package to ensure PCB footprint compatibility without redesign.

Saturation Characteristics: Vce saturation voltage at specified base and collector currents determines switching efficiency and heat dissipation behavior.

DC Current Gain: The minimum hFE value at specified operating points affects base drive requirements and circuit biasing calculations.

Thermal Rating: Operating junction temperature must support 150°C maximum to maintain thermal margin in the application.

Compliance: RoHS3 compliance and REACH unaffected status ensure regulatory conformance for the intended market.

The identified substitute parts are grouped based on whether they meet or exceed these parameters while maintaining the same package footprint and compliance certifications.

Parameter Comparison

Parameter	TSC5804DCP ROG	FJD3305H1TM	FJD5555TM
Manufacturer	Taiwan Semiconductor Corporation	onsemi	onsemi
Transistor Type	NPN	NPN	NPN
Voltage - Collector Emitter Breakdown (Max)	450 V	400 V	400 V
Current - Collector (Ic) (Max)	5 A	4 A	5 A
Power - Max	45 W	1.1 W	1.34 W
Vce Saturation (Max) @ Ib, Ic	2V @ 1A, 3.5A	1V @ 1A, 4A	1.5V @ 1A, 3.5A
DC Current Gain (hFE) (Min) @ Ic, Vce	25 @ 200mA, 3V	8 @ 2A, 5V	20 @ 800mA, 3V
Operating Temperature (TJ)	150°C	150°C	150°C
Package / Case	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Last Time Buy	Active

Engineering Selection Recommendations

FJD5555TM (onsemi) is the primary substitute for the TSC5804DCP ROG. This part maintains the 5 A collector current rating and TO-252-3 package compatibility. Although the voltage rating is reduced to 400 V, this part is classified as Active, ensuring long-term availability and supply chain stability. RoHS3 compliance and REACH unaffected status align with the original part's regulatory requirements. The lower power rating (1.34 W versus 45 W) reflects different thermal design characteristics but does not preclude substitution in applications where the original 45 W rating was not fully utilized.

FJD3305H1TM (onsemi) is a secondary substitute option. This part is classified as Last Time Buy, indicating limited future availability. The collector current rating is reduced to 4 A, and the voltage rating is 400 V. This part is suitable only for applications where the 4 A current limit is acceptable. RoHS3 compliance and REACH unaffected status are maintained.

Both substitute parts are manufactured by onsemi, a major semiconductor supplier with established quality and reliability standards. Selection between FJD5555TM and FJD3305H1TM depends on specific application current requirements and supply chain planning horizons.

Frequently Asked Questions (FAQ)

Q: Can FJD3305H1TM replace TSC5804DCP ROG in all applications?

A: No. FJD3305H1TM has a maximum collector current of 4 A, compared to 5 A for the TSC5804DCP ROG. This part is suitable only for applications where the load current does not exceed 4 A. Additionally, FJD3305H1TM is classified as Last Time Buy, limiting future procurement availability.

Q: What is the significance of the voltage rating difference between TSC5804DCP ROG (450 V) and the substitute parts (400 V)?

A: The TSC5804DCP ROG has a 50 V higher breakdown voltage rating. In applications operating near the maximum voltage specification, this difference may affect circuit safety margins. Substitution with 400 V parts is acceptable only if the circuit design includes adequate voltage margin below 400 V.

Q: Are the substitute parts pin-compatible with TSC5804DCP ROG?

A: Yes. Both FJD3305H1TM and FJD5555TM use the TO-252-3 (DPAK) package with identical pinout and footprint. No PCB redesign is required for package compatibility.

Q: Why is the power rating significantly lower in the substitute parts?

A: The power rating difference (45 W for TSC5804DCP ROG versus 1.1 W to 1.34 W for substitutes) reflects different thermal design specifications and package thermal characteristics. The lower power rating does not indicate reduced functionality but rather different thermal performance under continuous operation. Application-specific thermal analysis is necessary to confirm suitability.

Q: Which substitute part should be selected for new designs?

A: FJD5555TM is recommended for new designs. This part is classified as Active, ensuring long-term availability and supply chain continuity. It maintains the 5 A collector current rating and meets all compliance requirements.

Q: Are both substitute parts RoHS3 compliant?

A: Yes. Both FJD3305H1TM and FJD5555TM are RoHS3 compliant and REACH unaffected, matching the regulatory status of the original TSC5804DCP ROG.

Q: What is the difference between Last Time Buy and Active product status?

A: Active status indicates the manufacturer continues production and supports long-term supply. Last Time Buy indicates the manufacturer will cease production after a specified date, with no future availability. For production planning, Active status parts are preferred.

Q: Do the substitute parts have different moisture sensitivity levels?

A: Yes. TSC5804DCP ROG has MSL 3 (168 Hours), while both substitute parts have MSL 1 (Unlimited). MSL 1 indicates superior moisture resistance and less stringent storage requirements, providing a practical advantage for inventory management.

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