BSP50,115 Nexperia Transistor Darlington Pair (Other) In Stock

Name: BSP50,115
Brand: Nexperia
SKU: BSP50,115
Availability: InStock

Nexperia BSP50,115 is an NPN Darlington transistor with built-in base resistor and flyback diode in a SOT-223 SMD package. Rated at 45 V collector-emitter voltage, 500 mA collector current, and minimum DC current gain (hFE) of 2000. Available from global distributors with worldwide shipping.

OBSOLETETransistor Darlington PairVerified Jun 2026

Package / Visual Reference

BSP50,115Other

Quick Facts

Manufacturer: Nexperia
Package: Other
Pin Count: 4
Lifecycle: OBSOLETE
Datasheet: BSP50,115 Datasheet PDF
Category: Transistor Darlington Pair
Price: From $0.1261(MOQ 1)
Temp Range: ?°C to 150.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of BSP50,115?

Darlington pair with built-in base resistor and flyback diode for simplified relay and motor drive circuits
45 V VCE and 500 mA IC ratings cover a wide range of low-power load switching applications
SOT-223 package (SC-73, 4-pin) with collector tab for improved thermal dissipation in SMT designs

What is BSP50,115 used for?

The BSP50,115 Darlington transistor is well suited for relay driving, solenoid control, and lamp switching in industrial automation and consumer appliance designs. Its minimum hFE of 2000 enables logic-level microcontroller outputs to directly drive loads up to 500 mA without additional drive circuitry. The integrated flyback diode makes it ideal for inductive load switching in motor control and power management systems.

What are the specifications of BSP50,115?

Manufacturer Package Code	SOT223
Factory Lead Time	8Weeks
Date Of Intro	1997-09-01
YTEOL	0
Case Connection	COLLECTOR
Collector Current-Max (IC)	0.5A
Collector-Emitter Voltage-Max	45V
Configuration	DARLINGTON WITH BUILT-IN DIODE AND RESISTOR
DC Current Gain-Min (hFE)	2000
JESD-30 Code	R-PDSO-G4
JESD-609 Code	e3
Number of Elements	1
Package Body Material	PLASTIC/EPOXY
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE
Peak Reflow Temperature (Cel)	260
Polarity/Channel Type	NPN
Power Dissipation Ambient-Max	1.5W
Qualification Status	Not Qualified
Surface Mount	YES
Terminal Finish	Tin (Sn)
Terminal Form	GULL WING
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30
Transistor Application	SWITCHING
Transistor Element Material	SILICON
Transition Frequency-Nom (fT)	200MHz
VCEsat-Max	1.3V
Package	Other

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8541.29.00.75
Country of Origin	Mainland China

Where can I find the BSP50,115 datasheet?

BSP50,115 Datasheet Download

Official datasheet from Nexperia

What are equivalent replacements for BSP50,115?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What are the key electrical ratings of the Nexperia BSP50,115 Darlington transistor?

The BSP50,115 is rated for a 45 V collector-emitter voltage (VCE), 500 mA maximum collector current (IC), and a minimum DC current gain (hFE) of 2000, enabling microcontroller logic levels to directly switch relay coils and other inductive loads.

How does the built-in flyback diode in the BSP50,115 simplify relay drive circuit design?

The integrated flyback diode in the BSP50,115 clamps inductive voltage spikes from relay coils and solenoids to safe levels without requiring an external diode, reducing component count and PCB area while protecting the transistor from transient voltages above 45 V.

Why is the SOT-223 package advantageous for the BSP50,115 in high-dissipation load switching?

The SOT-223 (SC-73, 4-pin) package of the BSP50,115 has a large collector tab that acts as a heatspreader, enabling better thermal management when switching loads near the 500 mA limit compared to smaller SOT-23 packages of equivalent Darlington transistors.

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About Nexperia

Nexperia is a leading electronic component manufacturer. FindMyChip sources Nexperia ICs directly from authorized China distributors, offering competitive pricing and reliable stock.

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AvailabilityIn Stock

Reference Price (USD)

From $0.1261

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$0.6800	$0.68
10+	$0.5340	$5.34
23+	$0.2730	$6.28
184+	$0.1820	$33.49
4000+	$0.1284	$513.48
8000+	$0.1261	$1008.88

pcs

Unit price: $0.6800 · Total: $0.68

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”

Rajesh Patel

Procurement Manager, VoltEdge Energy, India

BSP50,115 Nexperia Transistor Darlington Pair (Other) In Stock

What are the key features of BSP50,115?

What is BSP50,115 used for?

What are the specifications of BSP50,115?

Compliance & Regulatory

Where can I find the BSP50,115 datasheet?

What are equivalent replacements for BSP50,115?

Frequently Asked Questions

What are the key electrical ratings of the Nexperia BSP50,115 Darlington transistor?

How does the built-in flyback diode in the BSP50,115 simplify relay drive circuit design?

Why is the SOT-223 package advantageous for the BSP50,115 in high-dissipation load switching?

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