BC847C-TP-HF Equivalent & Substitute Parts

Part Overview

The BC847C-TP-HF is a small-signal NPN bipolar junction transistor manufactured by Micro Commercial Co, designed for general-purpose switching and amplification applications. This surface-mount device operates at collector currents up to 100 mA with a maximum collector-emitter breakdown voltage of 45 V and transition frequency of 100 MHz. The part is currently active in production with 697 pieces in stock. Substitute parts are identified based on matching electrical specifications, package compatibility, and operational parameters to ensure functional equivalence in circuit applications.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) Max	100	mA
Voltage - Collector Emitter Breakdown (Max)	45	V
Vce Saturation (Max) @ Ib, Ic	500 mV @ 5 mA, 100 mA	—
Current - Collector Cutoff (Max)	100	nA
DC Current Gain (hFE) Min @ Ic, Vce	420 @ 2 mA, 5 V	—
Power - Max	225	mW
Frequency - Transition	100	MHz
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—

Substitute Part Grouping Explanation

Substitute parts for the BC847C-TP-HF are selected based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

Transistor Type: NPN configuration
Maximum Collector Current: 100 mA
Collector-Emitter Breakdown Voltage: 45 V or higher
Transition Frequency: 100 MHz or higher
Package Type: TO-236-3, SC-59, or SOT-23-3 surface-mount packages
Operating Temperature Range: Support for -55°C to 150°C or equivalent industrial range

Secondary Compatibility Factors:

DC Current Gain (hFE): Minimum 110 @ 2 mA, 5 V (BC847C specifies 420, but lower values remain functionally compatible for most applications)
Vce Saturation: Values up to 600 mV @ 5 mA, 100 mA are acceptable
Power Dissipation: 200 mW to 350 mW range
Collector Cutoff Current: 10 nA to 100 nA

Parts meeting these criteria are grouped as direct substitutes. Variations in hFE, Vce saturation, and power rating do not preclude substitution when the application does not require the specific performance characteristics of the BC847C variant.

Parameter Comparison

Part Number	Manufacturer	Ic Max (mA)	Vce Breakdown (V)	hFE Min @ 2mA, 5V	Vce Sat Max (mV)	Power Max (mW)	Freq Trans (MHz)	Temp Range (°C)	Package	Status
BC847C-TP-HF	Micro Commercial Co	100	45	420	500	225	100	-55 to 150	SOT-23	Active
2PD601ARL,215	Nexperia USA Inc.	100	50	210	250	250	100	-40 to 150	TO-236AB	Active
BC847,235	NXP Semiconductors	100	45	110	400	250	100	-40 to 150	TO-236AB	Active
BC847A RFG	Taiwan Semiconductor Corporation	100	45	110	500	200	100	-55 to 150	SOT-23	Active
BC847A,215	Nexperia USA Inc.	100	45	110	400	250	100	-40 to 150	TO-236AB	Active
BC847ALT1G	onsemi	100	45	110	600	300	100	-55 to 150	SOT-23-3	Active
BC847B,235	Nexperia USA Inc.	100	45	200	400	250	100	-40 to 150	TO-236AB	Active
BC847BLT3G	onsemi	100	45	200	600	300	100	-55 to 150	SOT-23-3	Active
BC847BT116	Rohm Semiconductor	100	45	—	600	350	200	-40 to 150	SST3	Not For New Designs
BC847CLT1G	onsemi	100	45	420	600	300	100	-55 to 150	SOT-23-3	Active

Engineering Selection Recommendations

Direct Substitutes (Highest Compatibility):

BC847CLT1G (onsemi) is the closest functional equivalent to BC847C-TP-HF. Both parts share identical DC current gain specifications (420 @ 2 mA, 5 V), matching collector current and breakdown voltage ratings, and identical operating temperature range (-55°C to 150°C). The primary difference is package variant (SOT-23-3 vs. SOT-23) and slightly higher power rating (300 mW vs. 225 mW), which provides additional thermal margin. This part is active in production with 80,100 units in stock.

BC847ALT1G and BC847BLT3G (both onsemi) are functionally compatible substitutes with active production status. Both support the full -55°C to 150°C temperature range and offer higher power dissipation (300 mW). BC847ALT1G maintains lower hFE (110), while BC847BLT3G provides hFE of 200. Both are packaged in SOT-23-3 (TO-236) format.

Secondary Substitutes (Acceptable with Application Review):

BC847A,215 (Nexperia USA Inc.) and BC847B,235 (Nexperia USA Inc.) are active automotive-grade parts with AEC-Q101 qualification. These parts operate within the 45 V breakdown voltage specification and support 100 mA collector current. Operating temperature range is -40°C to 150°C, which is narrower than the BC847C-TP-HF. These parts are suitable for applications not requiring the extended -55°C lower temperature limit.

2PD601ARL,215 (Nexperia USA Inc.) offers 50 V breakdown voltage (5 V higher margin) and automotive-grade qualification (AEC-Q101). Operating temperature range is -40°C to 150°C. This part is suitable for applications requiring enhanced voltage margin.

Not Recommended for New Designs:

BC847BT116 (Rohm Semiconductor) carries a "Not For New Designs" status and should not be selected for new circuit development, despite meeting electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can BC847CLT1G replace BC847C-TP-HF directly in existing designs?

A: Yes. BC847CLT1G is functionally equivalent with matching DC current gain (420 @ 2 mA, 5 V), collector current (100 mA), and breakdown voltage (45 V). Both support -55°C to 150°C operation. The package variant (SOT-23-3 vs. SOT-23) is mechanically compatible with standard TO-236 footprints. Verify PCB layout compatibility with your specific package designation before assembly.

Q: What is the difference between BC847A and BC847B variants?

A: BC847A and BC847B differ in DC current gain specification. BC847A specifies minimum hFE of 110 @ 2 mA, 5 V, while BC847B specifies minimum hFE of 200 @ 2 mA, 5 V. Both share identical maximum ratings (45 V, 100 mA, 100 MHz). Selection depends on circuit bias requirements. Higher hFE (BC847B) requires lower base current for equivalent collector current.

Q: Are automotive-grade parts (AEC-Q101) suitable for non-automotive applications?

A: Yes. Automotive-grade qualification indicates enhanced reliability testing and stricter manufacturing controls. These parts are fully compatible with industrial and consumer applications. Automotive-grade parts typically offer superior long-term reliability compared to standard-grade equivalents.

Q: What is the significance of the operating temperature range difference (-55°C vs. -40°C)?

A: The BC847C-TP-HF supports operation down to -55°C, while some substitutes (Nexperia automotive parts) support only -40°C minimum. Select -55°C rated parts for applications requiring extended low-temperature operation. For applications operating above -40°C, both specifications are equivalent.

Q: Can I use BC847BT116 in new circuit designs?

A: No. BC847BT116 carries "Not For New Designs" status from the manufacturer. This designation indicates the part is in end-of-life phase. Use active-status alternatives such as BC847CLT1G, BC847ALT1G, or BC847BLT3G for new designs.

Q: How do Vce saturation differences affect circuit performance?

A: Vce saturation ranges from 250 mV to 600 mV across substitute parts. Lower saturation voltage (2PD601ARL: 250 mV) reduces power dissipation in saturated switching applications. Higher saturation voltage (BC847ALT1G, BC847BLT3G: 600 mV) has minimal impact on linear amplification circuits. For switching applications with tight power budgets, select parts with lower Vce saturation specifications.

Q: Are TO-236AB and SOT-23-3 packages mechanically interchangeable?

A: Yes. TO-236AB and SOT-23-3 are equivalent designations for the same three-lead surface-mount package (SC-59). Both refer to identical physical dimensions and lead spacing. PCB footprints designed for one designation accommodate the other without modification.

Q: What inventory considerations apply when selecting substitutes?

A: BC847CLT1G offers the highest inventory availability (80,100 units) among active substitutes. 2PD601ARL,215 provides 30,400 units. BC847A,215 and BC847B,235 offer 9,400 and 25,522 units respectively. Verify supplier lead times and minimum order quantities for your procurement timeline.

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