BCX52-16-TP Equivalent & Substitute Parts

Part Overview

The BCX52-16-TP is a PNP bipolar junction transistor manufactured by Micro Commercial Co, designed for interface applications in surface mount configurations. This transistor operates at a maximum collector current of 1 A, collector-emitter breakdown voltage of 60 V, and maximum power dissipation of 500 mW. The device is packaged in SOT-89 (TO-243AA) surface mount format and is currently in active product status with 799 units in stock.

Substitute parts are necessary when the BCX52-16-TP becomes unavailable, when alternative packaging or compliance requirements are needed, or when design specifications allow for components with equivalent or enhanced electrical characteristics within the same functional category.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Current - Collector (Ic) Max	1	A
Voltage - Collector Emitter Breakdown (Max)	60	V
Vce Saturation (Max) @ Ib, Ic	500mV @ 50mA, 500mA	—
Current - Collector Cutoff (Max)	100	nA
DC Current Gain (hFE) Min @ Ic, Vce	100 @ 150mA, 2V	—
Power - Max	500	mW
Frequency - Transition	50	MHz
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-243AA	—

Substitute Part Grouping Explanation

Substitution of the BCX52-16-TP is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Transistor type must be PNP
Maximum collector current must be ≥ 1 A
Collector-emitter breakdown voltage must be ≥ 60 V (or ≥ 50 V for reduced voltage applications)
Maximum power dissipation must be ≥ 500 mW
Package type must be TO-243AA (SOT-89 compatible)
Mounting type must be Surface Mount
Operating temperature range must support -55°C to 150°C or equivalent upper limit of 150°C

Secondary Compatibility Factors:

Vce saturation characteristics at specified bias conditions
DC current gain (hFE) at specified operating points
Transition frequency (50 MHz minimum for standard applications)
Collector cutoff current (ICBO) specifications

The substitute parts listed below meet the primary substitution criteria with electrical characteristics that maintain functional equivalence or provide enhanced performance within the specified parameter ranges.

Parameter Comparison

Parameter	BCX52-16-TP	2SAR513P5T100	2SB1122T-TD-E	BCX51-10,115	BSR31,115
Manufacturer	Micro Commercial Co	Rohm Semiconductor	onsemi	Nexperia USA Inc.	Nexperia USA Inc.
Transistor Type	PNP	PNP	PNP	PNP	PNP
Ic (Max)	1 A	1 A	1 A	1 A	1 A
Vce Breakdown (Max)	60 V	50 V	50 V	45 V	60 V
Vce Saturation (Max) @ Ib, Ic	500mV @ 50mA, 500mA	400mV @ 25mA, 500mA	500mV @ 50mA, 500mA	500mV @ 50mA, 500mA	500mV @ 50mA, 500mA
ICBO (Max)	100 nA	1 µA	100 nA	100 nA	100 nA
hFE (Min) @ Ic, Vce	100 @ 150mA, 2V	180 @ 50mA, 2V	100 @ 100mA, 2V	63 @ 150mA, 2V	100 @ 100mA, 5V
Power (Max)	500 mW	500 mW	500 mW	1.3 W	1.35 W
Frequency - Transition	50 MHz	400 MHz	150 MHz	145 MHz	100 MHz
Operating Temperature (Max)	150°C	150°C	150°C	150°C	150°C
Package / Case	TO-243AA	TO-243AA	TO-243AA	TO-243AA	TO-243AA
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Active	Active	Obsolete	Active	Active
RoHS Status	REACH Unaffected	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

2SAR513P5T100 (Rohm Semiconductor)

This substitute is suitable for applications where the collector-emitter breakdown voltage can be reduced from 60 V to 50 V. The 2SAR513P5T100 provides superior transition frequency (400 MHz versus 50 MHz) and higher DC current gain (180 versus 100), making it appropriate for higher-speed switching applications. The part is in active product status with high inventory availability (15,100 units). RoHS3 compliance and MSL 1 rating support modern manufacturing environments.

2SB1122T-TD-E (onsemi)

This part maintains identical electrical characteristics to the BCX52-16-TP at the specified bias points (Vce saturation, ICBO, hFE). However, the product status is listed as obsolete, indicating this part is no longer in active production. Selection of this substitute is not recommended for new designs or long-term supply chain requirements.

BCX51-10,115 (Nexperia USA Inc.)

This substitute operates at a reduced collector-emitter breakdown voltage of 45 V, suitable only for applications with voltage margins below 45 V. The BCX51-10,115 provides enhanced power dissipation capability (1.3 W versus 500 mW) and automotive-grade qualification (AEC-Q100). The lower DC current gain (63 versus 100) requires circuit design verification. Active product status with 6,497 units in stock supports supply chain continuity.

BSR31,115 (Nexperia USA Inc.)

This substitute maintains the 60 V collector-emitter breakdown voltage specification, matching the BCX52-16-TP voltage rating. Enhanced power dissipation (1.35 W versus 500 mW) and automotive-grade qualification (AEC-Q100) provide additional design margin. The transition frequency of 100 MHz exceeds the BCX52-16-TP specification. Active product status with 2,200 units in stock supports availability. RoHS3 compliance and MSL 1 rating are confirmed.

Frequently Asked Questions (FAQ)

Q: Can the 2SAR513P5T100 be used as a direct replacement for the BCX52-16-TP?

A: The 2SAR513P5T100 is electrically compatible for applications operating at collector-emitter voltages of 50 V or below. The reduced voltage rating (50 V versus 60 V) must be verified against circuit maximum voltage conditions. All other electrical parameters (Ic, power, saturation characteristics) are equivalent or superior. Package and mounting type are identical.

Q: Why is the 2SB1122T-TD-E listed if it is obsolete?

A: The 2SB1122T-TD-E is included in the substitute list because it was previously specified as an equivalent part. However, obsolete product status indicates this part is no longer manufactured. New designs should not select this part. Existing designs using this part should transition to an active alternative.

Q: What is the difference between BCX51-10,115 and BSR31,115?

A: The primary difference is the collector-emitter breakdown voltage: BCX51-10,115 operates at 45 V maximum, while BSR31,115 operates at 60 V maximum. For applications requiring the full 60 V rating of the BCX52-16-TP, the BSR31,115 is the appropriate selection. Both parts offer enhanced power dissipation and automotive qualification.

Q: Are all substitute parts available in the same packaging?

A: Yes. All substitute parts listed are packaged in TO-243AA (SOT-89) surface mount format, identical to the BCX52-16-TP. Printed circuit board layouts and assembly processes require no modification for package compatibility.

Q: Which substitute part has the highest transition frequency?

A: The 2SAR513P5T100 has a transition frequency of 400 MHz, significantly higher than the BCX52-16-TP (50 MHz). This enhanced frequency response is suitable for higher-speed switching applications but requires verification that circuit design does not introduce instability at elevated frequencies.

Q: Do all substitute parts meet RoHS compliance?

A: The BCX52-16-TP is listed as REACH Unaffected. All substitute parts (2SAR513P5T100, 2SB1122T-TD-E, BCX51-10,115, and BSR31,115) are ROHS3 Compliant, meeting current environmental and regulatory requirements for electronic components.

Q: What is the minimum DC current gain for each substitute part?

A: BCX52-16-TP: 100 @ 150mA, 2V; 2SAR513P5T100: 180 @ 50mA, 2V; 2SB1122T-TD-E: 100 @ 100mA, 2V; BCX51-10,115: 63 @ 150mA, 2V; BSR31,115: 100 @ 100mA, 5V. The BCX51-10,115 has the lowest gain specification and requires circuit verification if gain-dependent biasing is used.

Q: Can substitute parts operate at the full temperature range of the BCX52-16-TP?

A: All substitute parts support the maximum operating temperature of 150°C. The BCX52-16-TP specifies a minimum operating temperature of -55°C. Verification of substitute part low-temperature specifications is required for applications operating below 0°C.

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