DCX55-13 Equivalent & Substitute Parts

Part Overview

The DCX55-13 is an NPN bipolar junction transistor manufactured by Diodes Incorporated, rated for 60 V collector-emitter breakdown voltage and 1 A maximum collector current in a surface mount SOT-89-3 package. This device is classified as obsolete, which necessitates identification of active equivalent and substitute components for ongoing production and maintenance applications. The DCX55-13 operates across a temperature range of -55°C to 150°C and delivers 1 W maximum power dissipation with a transition frequency of 200 MHz.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	60	V
Current - Collector (Ic) (Max)	1	A
Power - Max	1	W
Frequency - Transition	200	MHz
Vce Saturation (Max) @ Ib, Ic	500 mV @ 50 mA, 500 mA	—
DC Current Gain (hFE) (Min) @ Ic, Vce	63 @ 150 mA, 2 V	—
Current - Collector Cutoff (Max)	100	nA
Operating Temperature Range	-55 to 150	°C
Package / Case	TO-243AA	—
Supplier Device Package	SOT-89-3	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the DCX55-13 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Transistor Type: NPN
Voltage - Collector Emitter Breakdown (Max): 60 V or greater
Current - Collector (Ic) (Max): 1 A or greater
Vce Saturation (Max) @ Ib, Ic: 500 mV @ 50 mA, 500 mA
Current - Collector Cutoff (Max): 100 nA or less
Package / Case: TO-243AA
Supplier Device Package: SOT-89-3 or SOT-89 compatible
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Secondary Considerations:

Power - Max: 1 W or greater
Frequency - Transition: 200 MHz or greater (preferred for performance equivalence)
DC Current Gain (hFE): 63 or greater @ 150 mA, 2 V
Operating Temperature: -55°C to 150°C or extended range

Substitute parts are grouped into two categories: Direct Equivalents (matching all primary criteria with active product status) and Functional Alternatives (meeting electrical requirements with potential parameter variations).

Parameter Comparison

Part Number	Manufacturer	Product Status	Ic (Max) [A]	Vce Breakdown (Max) [V]	Power (Max) [W]	Frequency [MHz]	hFE (Min) @ 150mA, 2V	Package	Temp Range [°C]
DCX55-13	Diodes Incorporated	Obsolete	1	60	1	200	63	SOT-89-3	-55 to 150
BCX5510TA	Diodes Incorporated	Active	1	60	1	150	63	SOT-89-3	-65 to 150
BCX5616TA	Diodes Incorporated	Active	1	80	1	150	100	SOT-89-3	-65 to 150
BCX55TA	Diodes Incorporated	Active	1	60	1	150	40	SOT-89-3	-65 to 150
BCX55,115	Nexperia USA Inc.	Active	1	60	1.35	180	63	SOT-89	-55 to 150
BCX55-10,115	NXP Semiconductors	Active	1	60	1.25	180	63	SOT-89	-55 to 150
2SC5824T100R	Rohm Semiconductor	Active	3	60	2	200	180	MPT3	-55 to 150
2STF1360	STMicroelectronics	Active	3	60	1.4	130	160	SOT-89-3	-55 to 150
BCX55-16,115	Nexperia USA Inc.	Active	1	60	1.25	180	100	SOT-89	-55 to 150
BCX55-16,135	Nexperia USA Inc.	Active	1	60	1.25	180	100	SOT-89	-55 to 150
BCX55-TP	Micro Commercial Co	Active	1	60	0.5	130	63	SOT-89	-55 to 150

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitutes):

The BCX5510TA, BCX55TA, and BCX55-16,115 are active Diodes Incorporated and Nexperia products that maintain the 60 V collector-emitter breakdown voltage and 1 A maximum collector current specifications of the DCX55-13. These parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, matching the original device compliance profile. BCX5510TA and BCX55-16,115 provide equivalent DC current gain (hFE) of 63 at 150 mA, 2 V, ensuring functional compatibility in existing circuit designs.

Extended Voltage Alternative:

The BCX5616TA offers 80 V collector-emitter breakdown voltage while maintaining 1 A maximum collector current and identical saturation characteristics. This part is suitable for applications requiring enhanced voltage margin and is available in active production status with ROHS3 compliance.

Higher Current Capability Alternatives:

The 2STF1360 and 2SC5824T100R provide 3 A maximum collector current ratings, enabling use in applications requiring higher current handling. The 2STF1360 maintains the SOT-89-3 package format and 60 V voltage rating with 1.4 W power dissipation. The 2SC5824T100R operates at 200 MHz transition frequency matching the original DCX55-13 specification but uses an MPT3 package variant.

Product Status Consideration:

All recommended substitutes carry active product status, ensuring long-term availability and supply chain continuity. The DCX55-13 obsolete status necessitates transition to one of these active alternatives for new designs and ongoing production support.

Frequently Asked Questions (FAQ)

Q: Can BCX55TA directly replace DCX55-13 in all applications?

A: BCX55TA meets the primary electrical specifications (60 V, 1 A, SOT-89-3 package) and is ROHS3 compliant. However, BCX55TA specifies a minimum DC current gain (hFE) of 40 at 150 mA, 2 V, compared to the DCX55-13 specification of 63. Applications sensitive to current gain variation require circuit analysis to confirm compatibility.

Q: What is the difference between BCX55-16,115 and BCX55-16,135?

A: Both parts are manufactured by Nexperia USA Inc. and share identical electrical specifications: 60 V breakdown voltage, 1 A maximum collector current, 1.25 W power dissipation, and 180 MHz transition frequency. The primary difference is packaging format: BCX55-16,115 is supplied in Cut Tape (CT) & Digi-Reel format, while BCX55-16,135 is supplied in Tape & Reel (TR) format. Selection depends on procurement and assembly requirements.

Q: Is BCX55-TP suitable for high-frequency applications?

A: BCX55-TP operates at 130 MHz transition frequency, which is lower than the DCX55-13 specification of 200 MHz. Applications requiring 200 MHz or higher transition frequency performance should select BCX5510TA, BCX55,115, BCX55-10,115, or 2SC5824T100R instead.

Q: Can 2STF1360 be used as a drop-in replacement?

A: 2STF1360 is not a drop-in replacement due to package differences. The DCX55-13 uses SOT-89-3 package, while 2STF1360 uses SOT-89-3 package but with different pin configuration and higher current rating (3 A vs. 1 A). Circuit board layout and design must be verified for compatibility. However, 2STF1360 meets all electrical requirements and is suitable for new designs requiring higher current capability.

Q: What is the significance of the -65°C lower operating temperature limit on BCX5510TA and BCX5616TA?

A: BCX5510TA and BCX5616TA extend the lower operating temperature to -65°C compared to the DCX55-13 specification of -55°C. This provides enhanced performance margin for applications operating in extreme cold environments. Applications limited to -55°C or higher can use these parts without thermal performance concerns.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts carry ROHS3 compliance certification, matching the DCX55-13 environmental compliance status. This ensures compatibility with procurement requirements and regulatory standards for lead-free manufacturing.

Q: Which substitute offers the best frequency performance?

A: The 2SC5824T100R and DCX55-13 both operate at 200 MHz transition frequency, representing the highest frequency specification among available substitutes. BCX55,115, BCX55-10,115, BCX55-16,115, and BCX55-16,135 operate at 180 MHz. All other substitutes operate at 150 MHz or lower.

Q: Can BCX5616TA be used in circuits designed for 60 V operation?

A: Yes. BCX5616TA is rated for 80 V collector-emitter breakdown voltage, which exceeds the 60 V requirement. The higher voltage rating provides additional safety margin and does not degrade performance in 60 V circuits. All other electrical parameters (1 A maximum collector current, saturation voltage, current gain) are compatible with DCX55-13 specifications.

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