BC847T,115 Equivalent & Substitute Parts Reference

Part Overview

The BC847T,115 is an NPN bipolar junction transistor manufactured by NXP USA Inc., designed for general-purpose switching and amplification applications. This device operates at a maximum collector voltage of 45 V with a collector current rating of 100 mA and a transition frequency of 100 MHz. The part is packaged in SC-75 (SOT-416) surface mount configuration with a maximum power dissipation of 150 mW.

The BC847T,115 is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements. Substitute parts must maintain electrical compatibility within the specified parameter ranges while accommodating different package options and manufacturer offerings.

Key Parameters

Parameter	BC847T,115 Specification
Transistor Type	NPN
Collector Current (Ic) Max	100 mA
Collector-Emitter Breakdown Voltage (Max)	45 V
Vce Saturation (Max) @ Ib, Ic	400 mV @ 5 mA, 100 mA
Collector Cutoff Current (ICBO) Max	15 nA
DC Current Gain (hFE) Min @ Ic, Vce	110 @ 2 mA, 5 V
Power Dissipation Max	150 mW
Transition Frequency (fT)	100 MHz
Operating Temperature (TJ) Max	150°C
Package / Case	SC-75, SOT-416
Mounting Type	Surface Mount
Grade	Automotive
Qualification	AEC-Q101
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the BC847T,115 are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Electrical Parameters:

Transistor type must be NPN
Collector-emitter breakdown voltage must be ≥ 45 V
Collector current rating must be ≥ 100 mA
DC current gain (hFE) must be ≥ 110 @ 2 mA, 5 V
Transition frequency must be ≥ 100 MHz
Power dissipation must be ≥ 150 mW
Vce saturation characteristics must be compatible with application requirements

Mechanical and Compliance Parameters:

Surface mount mounting type required
RoHS3 compliance required
MSL rating of 1 (Unlimited) required
Automotive grade and AEC-Q101 qualification preferred for equivalent substitution

Substitute parts are grouped into two categories:

Category 1: Direct Package Equivalents (SC-75/SOT-416) Parts maintaining the original SC-75 (SOT-416) package footprint, enabling direct PCB replacement without layout modification.

Category 2: Alternative Package Substitutes (SOT-323, SOT-523, SOT-883) Parts with different surface mount packages that meet electrical specifications but require PCB layout adjustment. These parts offer enhanced availability and may provide improved thermal or electrical characteristics.

Parameter Comparison

Part Number	Manufacturer	Package	Ic (Max)	Vce(br)max	Vce Sat @ Ib,Ic	hFE Min @ Ic,Vce	Power Max	fT	Temp Range	Status
BC847T,115	NXP USA Inc.	SC-75, SOT-416	100 mA	45 V	400 mV @ 5 mA, 100 mA	110 @ 2 mA, 5 V	150 mW	100 MHz	-55°C to 150°C	Obsolete
BC847,215	Nexperia USA Inc.	TO-236AB, SC-59, SOT-23-3	100 mA	45 V	400 mV @ 5 mA, 100 mA	110 @ 2 mA, 5 V	250 mW	100 MHz	-55°C to 150°C	Active
BC847AT-TP	Micro Commercial Co	SOT-523	100 mA	45 V	600 mV @ 5 mA, 100 mA	110 @ 2 mA, 5 V	150 mW	100 MHz	-55°C to 150°C	Active
BC847BM,315	Nexperia USA Inc.	SC-101, SOT-883	100 mA	45 V	400 mV @ 5 mA, 100 mA	200 @ 2 mA, 5 V	250 mW	100 MHz	-55°C to 150°C	Active
BC847BT-TP	Micro Commercial Co	SOT-523	100 mA	45 V	600 mV @ 5 mA, 100 mA	200 @ 2 mA, 5 V	150 mW	100 MHz	-55°C to 150°C	Active
BC847BTT1G	onsemi	SC-75, SOT-416	100 mA	45 V	600 mV @ 5 mA, 100 mA	200 @ 2 mA, 5 V	225 mW	100 MHz	-55°C to 150°C	Active
BC847CT-TP	Micro Commercial Co	SOT-523	100 mA	45 V	600 mV @ 5 mA, 100 mA	420 @ 2 mA, 5 V	150 mW	100 MHz	-55°C to 150°C	Active
BC847W,115	Nexperia USA Inc.	SC-70, SOT-323	100 mA	45 V	400 mV @ 5 mA, 100 mA	110 @ 2 mA, 5 V	200 mW	100 MHz	-55°C to 150°C	Active
MMBT2222ATT1G	onsemi	SC-75, SOT-416	600 mA	40 V	1 V @ 50 mA, 500 mA	100 @ 150 mA, 10 V	150 mW	300 MHz	-55°C to 150°C	Active
MMBT2222ATT3G	onsemi	SC-75, SOT-416	600 mA	40 V	1 V @ 50 mA, 500 mA	100 @ 150 mA, 10 V	150 mW	300 MHz	-55°C to 150°C	Active
MMBT3904TT1G	onsemi	SC-75, SOT-416	200 mA	40 V	300 mV @ 5 mA, 50 mA	100 @ 10 mA, 1 V	300 mW	300 MHz	-55°C to 150°C	Active

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement):

BC847BTT1G (onsemi) is the recommended primary substitute. This part maintains the SC-75 (SOT-416) package footprint identical to the BC847T,115, enabling direct PCB replacement without layout modification. The BC847BTT1G meets all electrical specifications with enhanced power dissipation (225 mW vs. 150 mW) and higher DC current gain (200 vs. 110 @ 2 mA, 5 V). The part is active product status with full RoHS3 compliance, MSL 1 rating, and automotive qualification.

BC847,215 (Nexperia USA Inc.) provides an alternative primary substitute with TO-236AB (SOT-23-3) package. This part maintains identical electrical specifications to the original BC847T,115 with improved power dissipation (250 mW). The part is active status with automotive grade and AEC-Q101 qualification. PCB layout modification is required due to different package footprint.

Secondary Substitutes (Alternative Package Options):

BC847W,115 (Nexperia USA Inc.) offers substitution in SC-70 (SOT-323) package. This part maintains the original electrical specifications with 200 mW power dissipation. The compact SOT-323 package may provide space advantages in constrained layouts. Active product status with full compliance certifications.

BC847AT-TP and BC847BT-TP (Micro Commercial Co) provide SOT-523 package alternatives. Both parts meet electrical requirements with active product status. BC847BT-TP offers higher DC current gain (200 vs. 110). These options require PCB layout modification.

BC847BM,315 (Nexperia USA Inc.) offers SOT-883 package option with enhanced specifications including higher DC current gain (200) and improved power dissipation (250 mW). Automotive grade and AEC-Q101 qualified. Requires PCB layout modification.

Higher Current Alternatives (When Application Permits):

MMBT3904TT1G (onsemi) maintains SC-75 (SOT-416) package with enhanced specifications: 200 mA collector current, 300 mW power dissipation, and 300 MHz transition frequency. Suitable for applications requiring higher current handling. Active status with full compliance.

MMBT2222ATT1G and MMBT2222ATT3G (onsemi) provide SC-75 (SOT-416) package with significantly higher current capability (600 mA) and transition frequency (300 MHz). These parts are suitable only when application circuit design accommodates higher current ratings. Active status with full compliance.

Selection Criteria Summary:

Direct footprint replacement: BC847BTT1G
Nexperia ecosystem preference: BC847,215 or BC847W,115
Space-constrained designs: BC847W,115 (SOT-323)
Compact package requirement: BC847AT-TP or BC847BT-TP (SOT-523)
Higher current applications: MMBT3904TT1G or MMBT2222 series

All recommended substitutes maintain RoHS3 compliance, MSL 1 rating, and active product status. Automotive applications should prioritize parts with AEC-Q101 qualification.

Frequently Asked Questions (FAQ)

Q1: Can BC847BTT1G directly replace BC847T,115 without PCB modification?

A: Yes. BC847BTT1G maintains the identical SC-75 (SOT-416) package footprint as BC847T,115. Direct PCB replacement is possible without layout modification. The part meets all electrical specifications with enhanced power dissipation (225 mW) and higher DC current gain (200 @ 2 mA, 5 V).

Q2: What is the primary difference between BC847,215 and BC847T,115?

A: BC847,215 uses TO-236AB (SOT-23-3) package instead of SC-75 (SOT-416). Electrical specifications are identical. Power dissipation is improved (250 mW vs. 150 mW). PCB layout modification is required for this substitution.

Q3: Are MMBT2222 and MMBT3904 series suitable replacements for BC847T,115?

A: MMBT2222 and MMBT3904 series are not direct electrical equivalents. MMBT2222 has 600 mA collector current (vs. 100 mA) and 40 V breakdown voltage (vs. 45 V). MMBT3904 has 200 mA collector current and 40 V breakdown voltage. These parts are suitable only when application circuit design accommodates higher current ratings and lower voltage specifications.

Q4: What package options are available for BC847 substitutes?

A: Available packages include SC-75 (SOT-416), TO-236AB (SOT-23-3), SC-70 (SOT-323), SOT-523, and SOT-883. SC-75 (SOT-416) maintains direct footprint compatibility. Other packages require PCB layout modification.

Q5: Do all substitute parts meet automotive qualification requirements?

A: Most recommended substitutes carry automotive grade and AEC-Q101 qualification. MMBT2222 and MMBT3904 series do not list automotive grade in provided specifications. Verify automotive qualification requirements for specific application before selection.

Q6: What is the difference between BC847AT-TP and BC847BT-TP?

A: Both parts use SOT-523 package. BC847AT-TP has DC current gain of 110 @ 2 mA, 5 V. BC847BT-TP has higher DC current gain of 200 @ 2 mA, 5 V. Both maintain 45 V breakdown voltage and 100 mA collector current. BC847BT-TP provides improved gain characteristics.

Q7: Why does BC847BM,315 have higher DC current gain than BC847T,115?

A: BC847BM,315 is specified with DC current gain of 200 @ 2 mA, 5 V, compared to 110 for BC847T,115. This represents a different device variant within the BC847 family. Higher gain may affect circuit biasing and should be evaluated for specific application requirements.

Q8: Is MSL 1 (Unlimited) rating maintained across all substitute parts?

A: Yes. All recommended substitute parts maintain MSL 1 (Unlimited) moisture sensitivity level rating, identical to BC847T,115. No special moisture control measures are required during storage or handling.

Q9: What is the operating temperature range for substitute parts?

A: BC847T,115 specifies maximum operating temperature of 150°C. Most substitute parts specify -55°C to 150°C operating range, providing extended low-temperature capability. BC847,215 and BC847W,115 also specify -55°C to 150°C range.

Q10: Can BC847W,115 be used in space-constrained PCB designs?

A: Yes. BC847W,115 uses SC-70 (SOT-323) package, which is more compact than SC-75 (SOT-416). This package option is suitable for space-constrained designs. Electrical specifications match BC847T,115. PCB layout modification is required for package change.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message