2SC6145 Equivalent & Substitute Parts Reference

Part Overview

The Sanken Electric USA Inc. 2SC6145 is an NPN bipolar junction transistor (BJT) designed for high-voltage and high-current applications. With a collector-emitter breakdown voltage of 230 V, a maximum collector current of 15 A, and a power dissipation of 160 W, it is well-suited for demanding through-hole designs, particularly in audio and power output stages. The part is classified as obsolete, making the identification of equivalent or substitute BJTs critical for ongoing design support and field repair. Selecting functional alternatives requires close matching of electrical and mechanical parameters to ensure proper circuit operation and physical fit.

Key Parameters

Parameter	Value
Transistor Type	NPN
Current - Collector (Ic) (Max)	15 A
Voltage - Collector Emitter Breakdown (Max)	230 V
Vce Saturation (Max) @ Ib, Ic	500mV @ 500mA, 5A
Current - Collector Cutoff (Max)	10µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	40 @ 5A, 4V
Power - Max	160 W
Frequency - Transition	60MHz
Operating Temperature	150°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-3P-3, SC-65-3
Supplier Device Package	TO-3P
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute transistor selection uses only the key parameters specified: transistor type, collector current (Ic), breakdown voltage (Vce), Vce (sat) at defined Ib/Ic, collector cutoff current (ICBO), minimum DC current gain (hFE), maximum power dissipation, transition frequency, operating temperature, mounting type, package/case, supplier package, RoHS compliance, moisture sensitivity level, and product status. Only substitute transistors matching these parameters are considered, ensuring both electrical performance and mechanical compatibility as defined in the product category.

Parameter Comparison

Parameter	Main Part: 2SC6145	Substitute: 2SC3263	Substitute: FJA4313OTU	Substitute: NJW0281G
Transistor Type	NPN	NPN	NPN	NPN
Current - Collector (Ic) (Max)	15 A	15 A	17 A	15 A
Voltage - Collector Emitter Breakdown (Max)	230 V	230 V	250 V	250 V
Vce Saturation (Max) @ Ib, Ic	500mV @ 500mA, 5A	2V @ 500mA, 5A	3V @ 800mA, 8A	1V @ 500mA, 5A
Current - Collector Cutoff (Max)	10µA (ICBO)	100µA (ICBO)	500nA (ICBO)	10µA (ICBO)
DC Current Gain (hFE) (Min)	40 @ 5A, 4V	40 @ 5A, 4V	35 @ 7A, 5V	75 @ 3A, 5V
Power - Max	160 W	130 W	130 W	150 W
Frequency - Transition	60MHz	60MHz	30MHz	30MHz
Operating Temperature	150°C (TJ)	150°C (TJ)	150°C (TJ)	-65°C ~ 150°C (TJ)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-3P-3, SC-65-3	TO-3P-3, SC-65-3	TO-3P-3, SC-65-3	TO-3P-3, SC-65-3
Supplier Device Package	TO-3P	TO-3P	TO-3PN	TO-3P-3L
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Not Applicable	Not Applicable
Product Status	Obsolete	Active	Active	Active

Engineering Selection Recommendations

Engineering selection among 2SC6145, 2SC3263, FJA4313OTU, and NJW0281G should consider product availability and compliance identifiers. The main part, 2SC6145, is obsolete. The substitute parts—2SC3263, FJA4313OTU, and NJW0281G—are all listed as active and RoHS compliant, supporting environmental and supply-chain requirements. Moisture Sensitivity Level, RoHS compliance, and active production status should be reviewed to confirm fit for manufacturing and long-term support.

Frequently Asked Questions (FAQ)

Q1: What are the strict substitution criteria for replacing the 2SC6145?
A1: Only transistors matching the specified NPN type, collector current rating, collector-emitter voltage, minimum current gain, power dissipation, mounting type, and package (TO-3P-3, SC-65-3 or equivalent) are considered.

Q2: Does package type affect substitution?
A2: Yes. Only TO-3P-3, SC-65-3, TO-3P, or closely related package types are included to ensure mechanical compatibility with the original footprint.

Q3: Are all substitute parts RoHS compliant and suitable for reflow or manual assembly?
A3: All listed substitutes (2SC3263, FJA4313OTU, NJW0281G) are RoHS compliant. Moisture Sensitivity Level is specified in all cases.

Q4: How is transistor frequency (transition or ft) matched between main and substitute BJTs?
A4: Substitute selection includes frequency - transition, with alternatives meeting or approaching the 60MHz value of the 2SC6145.

Q5: Is it necessary to consider product status in substitute selection?
A5: Yes. Only active or in-production substitute parts (2SC3263, FJA4313OTU, NJW0281G) are included, since the 2SC6145 is obsolete. This ensures supply continuity.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message