BCX71H,235 Equivalent & Substitute Parts

Part Overview

The BCX71H,235 is an active-status PNP bipolar junction transistor manufactured by Nexperia USA Inc., designed for surface mount applications in the TO-236AB package. This component operates at a maximum collector current of 100 mA with a collector-emitter breakdown voltage of 45 V, making it suitable for low-to-medium current switching and amplification circuits. The part carries automotive-grade qualification (AEC-Q101) and is RoHS3 compliant.

Substitute parts become necessary when the primary part number experiences supply constraints, extended lead times, or when design flexibility permits the use of functionally equivalent alternatives from different manufacturers. The availability of equivalent and higher-current-rated alternatives ensures design continuity and procurement flexibility.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Maximum Collector Current (Ic)	100	mA
Collector-Emitter Breakdown Voltage (VCEO)	45	V
VCE Saturation @ Ib, Ic	550 mV @ 1.25 mA, 50 mA	—
Collector Cutoff Current (ICBO)	20	nA
DC Current Gain (hFE) @ Ic, VCE	180 @ 2 mA, 5 V	—
Maximum Power Dissipation	250	mW
Transition Frequency	100	MHz
Operating Temperature (Junction)	150	°C
Package Type	TO-236-3 / SC-59 / SOT-23-3	—
Mounting Type	Surface Mount	—
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the BCX71H,235 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Equivalence Criteria:

Transistor type: PNP
Collector-emitter breakdown voltage: 45 V (minimum requirement)
Package type: TO-236-3 / SC-59 / SOT-23-3 (surface mount)
Mounting type: Surface mount
RoHS compliance: ROHS3 Compliant
Transition frequency: 100 MHz (minimum)

Substitution Categories:

Parametric Equivalent — Parts with identical electrical specifications and maximum ratings. The BCX71H,215 from Nexperia USA Inc. meets all primary equivalence criteria with matching collector current (100 mA), breakdown voltage (45 V), power dissipation (250 mW), and current gain specifications.
Similar/Higher-Current Rated Alternatives — Parts with collector current ratings of 500 mA or greater, maintaining the 45 V breakdown voltage and 100 MHz transition frequency. These include BC807 variants from multiple manufacturers (Diodes Incorporated, onsemi, Micro Commercial Co). These parts are electrically compatible for applications where the BCX71H,235 operates below its maximum current rating, providing design margin and supply flexibility.

All substitute parts maintain automotive-grade status, AEC-Q101 qualification, and RoHS3 compliance. Operating temperature ranges vary; some substitutes extend to −55°C minimum, providing broader environmental coverage.

Parameter Comparison

Part Number	Manufacturer	Ic (Max) mA	VCEO (Max) V	VCE Sat @ Ib, Ic	hFE (Min) @ Ic, VCE	Power (Max) mW	fT MHz	Tj (Max) °C	Package	AEC-Q101
BCX71H,235	Nexperia USA Inc.	100	45	550 mV @ 1.25 mA, 50 mA	180 @ 2 mA, 5 V	250	100	150	TO-236AB	Yes
BCX71H,215	Nexperia USA Inc.	100	45	550 mV @ 1.25 mA, 50 mA	180 @ 2 mA, 5 V	250	100	150	TO-236AB	Yes
BC807-16-7-F	Diodes Incorporated	500	45	700 mV @ 50 mA, 500 mA	100 @ 100 mA, 1 V	310	100	150	SOT-23-3	No
BC807-16LT1G	onsemi	500	45	700 mV @ 50 mA, 500 mA	100 @ 100 mA, 1 V	300	100	150	SOT-23-3 (TO-236)	No
BC807-16LT3G	onsemi	500	45	700 mV @ 50 mA, 500 mA	100 @ 100 mA, 1 V	300	100	150	SOT-23-3 (TO-236)	No
BC807-25-TP	Micro Commercial Co	500	45	700 mV @ 50 mA, 500 mA	160 @ 100 mA, 1 V	300	100	150	SOT-23	No
BC807-25LT1G	onsemi	500	45	700 mV @ 50 mA, 500 mA	160 @ 100 mA, 1 V	300	100	150	SOT-23-3 (TO-236)	No
BC807-25LT3G	onsemi	500	45	700 mV @ 50 mA, 500 mA	160 @ 100 mA, 1 V	300	100	150	SOT-23-3 (TO-236)	No
BC807-40-7-F	Diodes Incorporated	500	45	700 mV @ 50 mA, 500 mA	250 @ 100 mA, 1 V	310	100	150	SOT-23-3	No
BC807-40-TP	Micro Commercial Co	500	45	700 mV @ 50 mA, 500 mA	250 @ 100 mA, 1 V	300	100	150	SOT-23	No
BC807-40LT1G	onsemi	500	45	700 mV @ 50 mA, 500 mA	250 @ 100 mA, 1 V	300	100	150	SOT-23-3 (TO-236)	No

Engineering Selection Recommendations

Direct Parametric Equivalent:

The BCX71H,215 from Nexperia USA Inc. is the direct parametric equivalent to the BCX71H,235. Both parts share identical electrical specifications, maximum ratings, automotive qualification (AEC-Q101), and RoHS3 compliance. Selection between these two part numbers is based solely on packaging tape configuration and inventory availability. Both are active-status products suitable for direct substitution without circuit redesign.

Higher-Current Rated Alternatives:

The BC807 family of PNP transistors from Diodes Incorporated, onsemi, and Micro Commercial Co provide 500 mA maximum collector current while maintaining the 45 V breakdown voltage and 100 MHz transition frequency. These parts are electrically compatible with the BCX71H,235 in applications where the device operates below its 100 mA maximum rating.

Compliance Considerations:

The BCX71H,235 and BCX71H,215 carry automotive-grade designation with AEC-Q101 qualification. The BC807 variants listed do not carry explicit AEC-Q101 qualification in the provided specifications. For automotive applications requiring AEC-Q101 certification, the BCX71H,215 is the appropriate selection. For non-automotive or general-purpose applications, BC807 variants provide equivalent electrical performance with higher current capacity.

All listed parts maintain RoHS3 compliance and surface mount packaging compatibility (TO-236-3 / SC-59 / SOT-23-3 family).

Frequently Asked Questions (FAQ)

Q: Can I substitute the BCX71H,235 with the BCX71H,215?

A: Yes. The BCX71H,215 is a parametric equivalent with identical electrical specifications, maximum ratings, package type, and automotive qualification. Substitution is direct with no circuit modifications required.

Q: What is the difference between the BCX71H,235 and BC807 variants?

A: The primary difference is maximum collector current: BCX71H,235 is rated for 100 mA, while BC807 variants are rated for 500 mA. Both maintain 45 V breakdown voltage and 100 MHz transition frequency. BC807 parts provide higher current capacity and design margin. The BCX71H,235 carries AEC-Q101 automotive qualification; BC807 variants do not carry this certification in the provided specifications.

Q: Are all substitute parts in the same package?

A: All parts use the TO-236-3 / SC-59 / SOT-23-3 family of surface mount packages. Specific supplier device packages vary (TO-236AB, SOT-23-3, SOT-23). These packages are mechanically and electrically compatible for PCB assembly purposes.

Q: Which BC807 variant should I select?

A: Selection depends on required DC current gain (hFE). BC807-16 variants specify hFE minimum of 100 @ 100 mA, 1 V. BC807-25 and BC807-40 variants specify hFE minimum of 160 and 250 respectively at the same test conditions. Choose based on your circuit's gain requirements. All maintain 45 V breakdown voltage and 100 MHz transition frequency.

Q: Can I use a BC807 in an automotive application requiring AEC-Q101?

A: No. The BCX71H,235 and BCX71H,215 carry explicit AEC-Q101 qualification. BC807 variants in the provided specifications do not carry this certification. For automotive applications with AEC-Q101 requirements, use BCX71H,215 as the substitute.

Q: What is the operating temperature range difference?

A: The BCX71H,235 specifies maximum junction temperature of 150°C. BC807 variants specify operating temperature range of −55°C to 150°C, providing extended low-temperature operation capability. Both support the same maximum junction temperature.

Q: Are there inventory differences between these parts?

A: Yes. Inventory levels vary significantly. BCX71H,235 has 1,074 pieces in stock. BCX71H,215 has 5,984 pieces. BC807 variants range from 1,430 to 305,300 pieces depending on manufacturer and packaging. Higher inventory levels may reduce lead times for BC807 alternatives.

Q: What does the packaging designation (TR, CT) mean?

A: TR indicates Tape & Reel packaging for automated assembly. CT indicates Cut Tape & Digi-Reel packaging. Both are surface mount formats suitable for pick-and-place equipment. Selection depends on your assembly process requirements and minimum order quantities.

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