BC847CT116 Equivalent & Substitute Parts

Part Overview

The BC847CT116 is a surface mount NPN bipolar junction transistor manufactured by Rohm Semiconductor in SST3 packaging. This device is rated for 45 V collector-emitter breakdown voltage, 100 mA maximum collector current, and 350 mW power dissipation with a transition frequency of 200 MHz. The part carries a "Not For New Designs" product status, indicating it is obsolete or being phased out. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support existing production requirements.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Collector-Emitter Breakdown Voltage (Max)	45	V
Collector Current (Max)	100	mA
Power Dissipation (Max)	350	mW
Transition Frequency	200	MHz
DC Current Gain (hFE Min)	420	@ 2mA, 5V
Vce Saturation (Max)	600	mV @ 5mA, 100mA
Collector Cutoff Current (Max)	15	nA
Operating Temperature (Max)	150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
RoHS Status	ROHS3 Compliant	—
MSL Rating	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the BC847CT116 is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

Transistor type must be NPN
Collector-emitter breakdown voltage must be ≥45 V
Maximum collector current must be ≥100 mA
Maximum power dissipation must be ≥350 mW
DC current gain (hFE) must be ≥420 @ 2mA, 5V
Vce saturation must be ≤600 mV @ 5mA, 100mA
Collector cutoff current must be ≤15 nA
Operating temperature range must include 150°C maximum

Mechanical Compatibility Criteria:

Package must be TO-236-3, SC-59, or SOT-23-3
Mounting type must be surface mount
Moisture sensitivity level must be ≤1 (Unlimited)

Compliance Criteria:

RoHS3 compliance required
REACH unaffected status required

Substitute parts are grouped into two categories: Direct Substitutes (meet or exceed all electrical and mechanical parameters) and Similar Substitutes (meet core electrical requirements but may have minor parameter variations).

Parameter Comparison

Part Number	Manufacturer	Ic (Max) mA	Vce(br) V	Power mW	fT MHz	hFE Min	Vce Sat mV	Icbo nA	Temp °C	Status	Package
BC847CT116	Rohm Semiconductor	100	45	350	200	420	600	15	150	Not For New Designs	SST3
BC847BT116	Rohm Semiconductor	100	45	350	200	—	600	15	150	Not For New Designs	SST3
BC847C,235	Nexperia USA Inc.	100	45	250	100	420	400	15	150	Active	TO-236AB
BC847C-7-F	Diodes Incorporated	100	45	300	300	420	600	15	150	Active	SOT-23-3
BC847C-TP	Micro Commercial Co	100	45	225	100	420	500	100	150	Active	SOT-23
BC847CLT1G	onsemi	100	45	300	100	420	600	15	150	Active	SOT-23-3
BC850C,235	Nexperia USA Inc.	100	45	250	100	420	600	15	150	Active	TO-236AB
BC850CLT1G	onsemi	100	45	225	100	420	600	15	150	Active	SOT-23-3
SBC847CLT1G	onsemi	100	45	300	100	420	600	15	150	Active	SOT-23-3
2PD601ARL,235	Nexperia USA Inc.	100	50	250	100	210	250	10	150	Active	TO-236AB
2PD601ASL,215	Nexperia USA Inc.	100	50	250	100	290	250	10	150	Active	TO-236AB

Engineering Selection Recommendations

Direct Substitutes (Recommended for Replacement):

The following parts are classified as direct substitutes and carry Active product status, ensuring long-term availability and supply chain support:

BC847CLT1G (onsemi): Meets all electrical parameters with Active status. Identical Ic, Vce(br), hFE, and Icbo specifications. Transition frequency of 100 MHz is lower than the original 200 MHz but sufficient for most applications. SOT-23-3 package is mechanically compatible.
BC847C,235 (Nexperia USA Inc.): Active status with AEC-Q101 automotive qualification. Meets all core electrical requirements. Vce saturation of 400 mV is superior to the original 600 mV. Power dissipation of 250 mW is lower; verify thermal requirements in your application.
BC847C-7-F (Diodes Incorporated): Active status with the highest transition frequency (300 MHz) among substitutes. Exceeds original power dissipation (300 mW vs. 350 mW). Vce saturation matches original specification at 600 mV.
BC850C,235 (Nexperia USA Inc.): Active status with AEC-Q101 automotive qualification. Identical electrical parameters to BC847C,235. Suitable for automotive applications requiring qualification.
BC850CLT1G (onsemi): Active status with lower power dissipation (225 mW). Verify thermal headroom in your circuit design.
SBC847CLT1G (onsemi): Active status with AEC-Q101 automotive qualification. Identical electrical parameters to BC847CLT1G. Recommended for automotive applications.

Similar Substitutes (Limited Compatibility):

2PD601ARL,235 and 2PD601ASL,215 (Nexperia USA Inc.): Higher Vce(br) of 50 V provides additional voltage margin. However, DC current gain (hFE) is significantly lower (210–290 vs. 420), and Vce saturation is substantially lower (250 mV vs. 600 mV). These parts are suitable only if circuit design accommodates lower gain and lower saturation voltage. Active status with AEC-Q101 qualification.

Obsolete or Limited Availability:

BC847BT116 (Rohm Semiconductor): Carries "Not For New Designs" status identical to the original part. Avoid for new applications. Suitable only for direct replacement in existing production if supply is available.

Frequently Asked Questions (FAQ)

Q: Can I use BC847CLT1G as a direct replacement for BC847CT116?

A: Yes. BC847CLT1G meets all critical electrical parameters: 100 mA collector current, 45 V breakdown voltage, 420 hFE minimum, and 15 nA collector cutoff current. The transition frequency is lower (100 MHz vs. 200 MHz), but this does not affect functionality in most low-frequency switching applications. BC847CLT1G carries Active product status, ensuring long-term availability. Package compatibility is confirmed (SOT-23-3).

Q: What is the difference between BC847C,235 and BC847CLT1G?

A: Both are Active status BC847 variants from different manufacturers (Nexperia vs. onsemi). BC847C,235 has lower power dissipation (250 mW) and lower Vce saturation (400 mV), making it more efficient. BC847CLT1G has higher power dissipation (300 mW) and higher Vce saturation (600 mV), matching the original part more closely. Both meet the 420 hFE minimum requirement. Choose based on thermal constraints and saturation voltage requirements in your circuit.

Q: Why do some substitutes have lower transition frequency (100 MHz vs. 200 MHz)?

A: Transition frequency (fT) indicates the frequency at which current gain drops to unity. Lower fT does not prevent the transistor from functioning in DC or low-frequency switching circuits. If your application operates below 100 MHz, lower fT substitutes are fully compatible. For high-frequency applications above 100 MHz, select BC847C-7-F (300 MHz) or BC847CT116 alternatives with higher fT ratings.

Q: Are automotive-qualified parts (AEC-Q101) interchangeable with non-qualified parts?

A: Automotive-qualified parts (BC847C,235; BC850C,235; SBC847CLT1G; 2PD601ARL,235; 2PD601ASL,215) meet additional reliability and testing standards. They are electrically and mechanically interchangeable with non-qualified parts but provide enhanced traceability and quality assurance. Use automotive-qualified parts in safety-critical or high-reliability applications. For general-purpose applications, non-qualified Active parts are acceptable.

Q: What does "Not For New Designs" status mean?

A: This designation indicates the part is obsolete or being discontinued by the manufacturer. BC847CT116 and BC847BT116 carry this status. New designs should not use these parts. Existing production may continue using available inventory, but long-term supply is not guaranteed. Transition to Active status alternatives (BC847CLT1G, BC847C,235, BC847C-7-F) for design continuity.

Q: Can I use 2PD601 series as a substitute?

A: 2PD601ARL,235 and 2PD601ASL,215 are electrically compatible but with significant differences: DC current gain is lower (210–290 vs. 420), and Vce saturation is substantially lower (250 mV vs. 600 mV). These parts are suitable only if your circuit design accommodates lower gain and lower saturation voltage. They are not recommended as direct drop-in replacements without circuit analysis. Both carry Active status and AEC-Q101 qualification.

Q: What packaging options are available?

A: All substitutes use TO-236-3, SC-59, or SOT-23-3 surface mount packages, which are mechanically identical. The original BC847CT116 uses SST3 packaging (Rohm's designation for SOT-23-3). Substitutes from other manufacturers use standard SOT-23-3 or TO-236AB designations. All are compatible with standard pick-and-place equipment and PCB layouts designed for SOT-23-3 footprints.

Q: Which substitute offers the best thermal performance?

A: BC847C,235 and BC850C,235 offer the lowest power dissipation (250 mW), followed by BC847C-TP and BC850CLT1G (225 mW). If thermal management is critical, these parts dissipate less heat than the original 350 mW specification. However, verify that lower power dissipation does not indicate reduced current-handling capability—all substitutes maintain 100 mA maximum collector current.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitutes carry RoHS3 compliance and REACH unaffected status, matching the original BC847CT116. Moisture sensitivity level (MSL) is 1 (Unlimited) for all parts, indicating no special storage or handling requirements.

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