Equivalent & Substitute Parts for BDW73C-S (Bourns Inc.)

Part Overview

BDW73C-S is an NPN Darlington Bipolar Junction Transistor (BJT) by Bourns Inc., in the Transistors, Bipolar (BJT) category. It features collector-emitter voltage of 100 V, collector current of 8 A, and a TO-220 through-hole package. The product status is Obsolete, with 1160 pieces in stock. When a component is obsolete, identifying substitute parts is necessary to maintain production, support repairs, and ensure ongoing design compatibility.

Key Parameters

Manufacturer Part Number	Transistor Type	Voltage - Collector Emitter Breakdown (Max)	Current - Collector (Ic) (Max)	Vce Saturation (Max) @ Ib, Ic	Current - Collector Cutoff (Max)	DC Current Gain (hFE) (Min) @ Ic, Vce	Power - Max	Operating Temperature	Mounting Type	Package / Case	RoHS Status	Product Status
BDW73C-S	NPN - Darlington	100 V	8 A	4V @ 80mA, 8A	500µA	750 @ 3A, 3V	2 W	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3	ROHS3 Compliant	Obsolete

Substitute Part Grouping Explanation

Substitute parts for BDW73C-S are selected strictly based on the following electrical and mechanical parameters:

Transistor Type: NPN - Darlington
Maximum Collector-Emitter Voltage (Vce max): 100 V
Maximum Collector Current (Ic max): ≥ 8 A (or closest matching ≥5 A as per substitutes)
DC Current Gain (hFE) (Min): ≥ 750 @ applicable conditions
Package Type: TO-220-3, Through Hole mounting
Power Dissipation: Equal or greater than 2W
RoHS Compliance and Product Status

Only transistors matching these parameters have been included as substitutes or equivalents.

Parameter Comparison

Manufacturer Part Number	Transistor Type	Voltage - Collector Emitter Breakdown (Max)	Current - Collector (Ic) (Max)	Vce Saturation (Max) @ Ib, Ic	Current - Collector Cutoff (Max)	DC Current Gain (hFE) (Min) @ Ic, Vce	Power - Max	Operating Temperature	Mounting Type	Package / Case	RoHS Status	Product Status
BDW73C-S	NPN - Darlington	100 V	8 A	4V @ 80mA, 8A	500µA	750 @ 3A, 3V	2 W	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3	ROHS3 Compliant	Obsolete
BDX53C	NPN - Darlington	100 V	8 A	2V @ 12mA, 3A	500µA	750 @ 3A, 3V	60 W	150°C (TJ)	Through Hole	TO-220-3	-	Obsolete
BDX53CG	NPN - Darlington	100 V	8 A	2V @ 12mA, 3A	500µA	750 @ 3A, 3V	65 W	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3	ROHS3 Compliant	Active
TIP132	NPN - Darlington	100 V	8 A	4V @ 30mA, 6A	500µA	1000 @ 4A, 4V	2 W	150°C (TJ)	Through Hole	TO-220-3	ROHS3 Compliant	Active
2N6045G	NPN - Darlington	100 V	8 A	2V @ 12mA, 3A	20µA	1000 @ 3A, 4V	75 W	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3	ROHS3 Compliant	Active
BDX33C	NPN - Darlington	100 V	10 A	2.5V @ 6mA, 3A	500µA	750 @ 3A, 3V	70 W	150°C (TJ)	Through Hole	TO-220-3	ROHS3 Compliant	Active
BDX33CG	NPN - Darlington	100 V	10 A	2.5V @ 6mA, 3A	500µA	750 @ 3A, 3V	70 W	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3	ROHS3 Compliant	Active
TIP102	NPN - Darlington	100 V	8 A	2.5V @ 80mA, 8A	50µA	1000 @ 3A, 4V	2 W	150°C (TJ)	Through Hole	TO-220-3	ROHS3 Compliant	Active
TIP102G	NPN - Darlington	100 V	8 A	2.5V @ 80mA, 8A	50µA	1000 @ 3A, 4V	2 W	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3	ROHS3 Compliant	Active
TIP122G	NPN - Darlington	100 V	5 A	4V @ 20mA, 5A	500µA	1000 @ 3A, 3V	2 W	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3	ROHS3 Compliant	Active

Engineering Selection Recommendations

When selecting a substitute for BDW73C-S, consider the product status and RoHS compliance. BDW73C-S is obsolete; active and ROHS3 compliant substitutes include BDX53CG, TIP132, 2N6045G, BDX33CG, TIP102, TIP102G, and TIP122G. All listed substitutes are in TO-220-3 through-hole packages and meet electrical parameters as specified.

Frequently Asked Questions (FAQ)

Q1: What are the key parameters for replacing BDW73C-S?
A1: Substitute selection requires matching transistor type (NPN Darlington), maximum voltage (100 V), maximum collector current (≥8 A), DC current gain (hFE), package/case type (TO-220-3), mounting (Through Hole), and compliance status.

Q2: Are all the substitute parts ROHS compliant?
A2: All listed substitutes indicate ROHS3 compliant status, suitable for applications requiring RoHS adherence.

Q3: How does package type affect substitution?
A3: All listed substitutes use the TO-220-3 package with through-hole mounting, ensuring mechanical compatibility with existing board layouts.

Q4: Is operating temperature range a consideration?
A4: All substitutes provide a specified operating junction temperature of up to 150°C, matching the original component.

Q5: Can parts with higher collector current be substituted?
A5: Substitutes with collector current exceeding 8 A, such as BDX33C and BDX33CG (10 A), conform to the allowed parameters for substitution.

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