BSP43,115 Equivalent & Substitute Parts

Part Overview

The BSP43,115 is an NPN bipolar junction transistor manufactured by Nexperia USA Inc., designed for general-purpose switching and amplification applications. This Surface Mount device is housed in a SOT-223 package and operates at a maximum collector current of 1 A with a collector-emitter breakdown voltage of 80 V. The part is classified as Active and carries AEC-Q100 automotive qualification, making it suitable for automotive and industrial applications. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and package specifications to ensure functional interchangeability in circuit designs.

Key Parameters

Parameter	Value
Transistor Type	NPN
Current - Collector (Ic) (Max)	1 A
Voltage - Collector Emitter Breakdown (Max)	80 V
Vce Saturation (Max) @ Ib, Ic	500mV @ 50mA, 500mA
Current - Collector Cutoff (Max)	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	100 @ 100mA, 5V
Power - Max	1.3 W
Frequency - Transition	100MHz
Operating Temperature	150°C (TJ)
Package / Case	TO-261-4, TO-261AA
Supplier Device Package	SOT-223
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Grade	Automotive
Qualification	AEC-Q100

Substitute Part Grouping Explanation

Substitute parts for the BSP43,115 are identified based on the following critical parameters that determine functional interchangeability:

Electrical Matching Criteria:

Transistor Type: NPN
Maximum Collector Current (Ic): 1 A
Collector-Emitter Breakdown Voltage (VCEO): 80 V
Vce Saturation: 500mV @ 50mA, 500mA
Collector Cutoff Current (ICBO): 100nA or lower
DC Current Gain (hFE): Minimum 100 at specified operating points

Mechanical & Package Compatibility:

Package / Case: TO-261-4 or TO-261AA
Supplier Device Package: SOT-223 or SOT-223 (TO-261)
Mounting Type: Surface Mount

Compliance & Status:

RoHS3 Compliant
Product Status: Active or Last Time Buy
Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts meeting all electrical parameters and package specifications are considered functionally equivalent. Variations in power dissipation, transition frequency, and operating temperature range do not preclude substitution when the primary electrical and mechanical requirements are satisfied.

Parameter Comparison

Part Number	Manufacturer	Ic (Max)	VCEO (Max)	Vce Sat @ Ib, Ic	ICBO (Max)	hFE (Min)	Power (Max)	fT (MHz)	Temp Range	Package	Status
BSP43,115	Nexperia USA Inc.	1 A	80 V	500mV @ 50mA, 500mA	100nA	100 @ 100mA, 5V	1.3 W	100	150°C	SOT-223	Active
CZT3019 TR PBFREE	Central Semiconductor Corp	1 A	80 V	500mV @ 50mA, 500mA	10nA	100 @ 150mA, 10V	2 W	400	-65°C ~ 150°C	SOT-223	Active
BCP56-10T1G	onsemi	1 A	80 V	500mV @ 50mA, 500mA	100nA	63 @ 150mA, 2V	1.5 W	130	-65°C ~ 150°C	SOT-223 (TO-261)	Active
BCP56-16	ANBON SEMICONDUCTOR (INT'L) LIMITED	1 A	80 V	500mV @ 50mA, 500mA	100nA	100 @ 150mA, 2V	1.6 W	—	150°C	SOT-223	Active
BCP56-16T1G	onsemi	1 A	80 V	500mV @ 50mA, 500mA	100nA	100 @ 150mA, 2V	1.5 W	130	-65°C ~ 150°C	SOT-223 (TO-261)	Active
BCP56-16T3G	onsemi	1 A	80 V	500mV @ 50mA, 500mA	100nA	100 @ 150mA, 2V	1.5 W	130	-65°C ~ 150°C	SOT-223 (TO-261)	Active
BCP5610H6327XTSA1	Infineon Technologies	1 A	80 V	500mV @ 50mA, 500mA	100nA	63 @ 150mA, 2V	2 W	100	150°C	PG-SOT223-4-10	Last Time Buy
BCP5616QTA	Diodes Incorporated	1 A	80 V	500mV @ 50mA, 500mA	100nA	100 @ 150mA, 2V	2 W	150	-65°C ~ 150°C	SOT-223-3	Active
BCP5616TA	Diodes Incorporated	1 A	80 V	500mV @ 50mA, 500mA	100nA	100 @ 150mA, 2V	2 W	150	-55°C ~ 150°C	SOT-223-3	Active
BCP56T1G	onsemi	1 A	80 V	500mV @ 50mA, 500mA	100nA	40 @ 150mA, 2V	1.5 W	130	-65°C ~ 150°C	SOT-223 (TO-261)	Active
BCP56T3G	onsemi	1 A	80 V	500mV @ 50mA, 500mA	100nA	40 @ 150mA, 2V	1.5 W	130	-65°C ~ 150°C	SOT-223 (TO-261)	Active

Engineering Selection Recommendations

All listed substitute parts satisfy the core electrical requirements for the BSP43,115: 1 A maximum collector current, 80 V collector-emitter breakdown voltage, and SOT-223 surface mount packaging. The following considerations apply to part selection:

Active Status Parts: CZT3019 TR PBFREE, BCP56-10T1G, BCP56-16, BCP56-16T1G, BCP56-16T3G, BCP5616QTA, BCP5616TA, BCP56T1G, and BCP56T3G are all classified as Active products with current manufacturing support and availability.

Last Time Buy Status: BCP5610H6327XTSA1 is designated Last Time Buy, indicating limited future availability. This part remains functionally equivalent but should be selected only when inventory constraints or design requirements necessitate its use.

Compliance Alignment: All substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited) matching the BSP43,115. The BSP43,115 carries AEC-Q100 automotive qualification; substitute parts from Diodes Incorporated (BCP5616QTA, BCP5616TA) carry AEC-Q101 automotive qualification, providing equivalent automotive-grade reliability.

Electrical Performance Variations: Substitute parts exhibit variations in transition frequency (100 MHz to 400 MHz), power dissipation (1.3 W to 2 W), and DC current gain specifications. These variations do not affect substitution eligibility when the primary electrical parameters remain within specification limits.

Operating Temperature Range: The BSP43,115 specifies a maximum junction temperature of 150°C. Substitute parts from onsemi and Diodes Incorporated extend the operating temperature range to -65°C or -55°C minimum, providing enhanced thermal performance in low-temperature environments.

Frequently Asked Questions (FAQ)

Q: Can BCP56-16T3G be used as a direct replacement for BSP43,115?

A: Yes. BCP56-16T3G meets all critical electrical parameters: 1 A maximum collector current, 80 V collector-emitter breakdown voltage, 500mV saturation voltage at specified bias conditions, and SOT-223 surface mount packaging. Both parts are Active status with ROHS3 compliance and Moisture Sensitivity Level 1.

Q: What is the difference between BCP56-16T1G and BCP56-16T3G?

A: Both parts are electrically identical with matching electrical specifications. The primary difference is packaging format: BCP56-16T1G is supplied in Cut Tape (CT) & Digi-Reel format, while BCP56-16T3G is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and tape reel compatibility.

Q: Is CZT3019 TR PBFREE suitable for automotive applications?

A: CZT3019 TR PBFREE meets the electrical requirements for substitution but does not carry automotive qualification (AEC-Q100 or AEC-Q101). It is classified as Active and ROHS3 compliant. Use in automotive applications requires design review and qualification assessment.

Q: Why does BCP5610H6327XTSA1 show Last Time Buy status?

A: Last Time Buy status indicates the manufacturer has announced end-of-life for this part. While functionally equivalent to BSP43,115, inventory is limited and future availability is not guaranteed. This part should be selected only when existing stock meets project requirements or when design constraints necessitate its use.

Q: Can parts with different DC current gain (hFE) specifications be interchanged?

A: Yes, within the context of circuit design. The BSP43,115 specifies hFE minimum of 100 @ 100mA, 5V. Substitute parts specify hFE values ranging from 40 to 100 at different bias points (150mA, 2V or 10V). Circuit designs must accommodate the specified hFE range of the selected part. Lower hFE values require higher base current to achieve saturation; higher hFE values provide improved switching efficiency.

Q: Are SOT-223 and SOT-223-3 packages mechanically compatible?

A: SOT-223 and SOT-223-3 are both three-terminal surface mount packages with identical lead pitch and footprint dimensions. Both are compatible with standard SOT-223 PCB layouts. Verify specific package variant requirements in component datasheets and PCB design files.

Q: What is the significance of Moisture Sensitivity Level 1 (Unlimited)?

A: Moisture Sensitivity Level 1 (Unlimited) indicates the component has no moisture sensitivity restrictions. These parts do not require special moisture-controlled storage, handling, or baking procedures prior to assembly. Standard storage conditions are acceptable.

Q: Can BCP56T1G and BCP56T3G be used interchangeably?

A: Yes. Both parts are electrically identical with matching specifications. The difference is packaging format: BCP56T1G is supplied in Cut Tape (CT) & Digi-Reel format, while BCP56T3G is supplied in Tape & Reel (TR) format. Selection depends on assembly equipment compatibility and tape reel specifications.

Q: Why do some substitute parts specify extended operating temperature ranges?

A: Extended operating temperature ranges (-65°C to 150°C versus 150°C maximum) reflect enhanced thermal design and manufacturing process control. These parts maintain electrical specifications across wider temperature extremes, providing design margin for applications operating in temperature-variable environments. The BSP43,115 specifies 150°C maximum junction temperature; substitute parts with extended ranges offer additional thermal headroom.

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