2SD1898-P-TP Equivalent & Substitute Parts

Part Overview

The 2SD1898-P-TP is an NPN bipolar junction transistor manufactured by Micro Commercial Co, designed for interface applications requiring moderate power dissipation and switching frequency performance. This Surface Mount device in SOT-89 package is classified as Active product status. Substitute parts are identified when equivalent electrical characteristics and mechanical compatibility exist within the same package form factor, enabling direct replacement in circuit designs without layout modification.

Key Parameters

Parameter	Value
Transistor Type	NPN
Current - Collector (Ic) (Max)	1 A
Voltage - Collector Emitter Breakdown (Max)	80 V
Power - Max	500 mW
Frequency - Transition	100 MHz
Package / Case	TO-243AA (SOT-89)
Mounting Type	Surface Mount
Operating Temperature Range	-55°C to 150°C

Substitute Part Grouping Explanation

Substitution eligibility for the 2SD1898-P-TP is determined by the following critical parameters:

Electrical Compatibility Requirements:

Transistor Type: NPN (must match)
Maximum Collector Current (Ic): 1 A (must equal or exceed)
Collector-Emitter Breakdown Voltage: 80 V (must equal or exceed)
Maximum Power Dissipation: 500 mW (must equal or exceed)
Transition Frequency: 100 MHz (must equal or exceed)

Mechanical Compatibility Requirements:

Package / Case: TO-243AA (SOT-89) (must match exactly)
Mounting Type: Surface Mount (must match)

The substitute parts BCX56,115 and BCX56-10,135 meet all electrical and mechanical compatibility criteria. Both devices are manufactured by Nexperia USA Inc., feature identical maximum collector current (1 A) and collector-emitter breakdown voltage (80 V), and are housed in the same TO-243AA SOT-89 package. Both substitute parts exceed the power dissipation requirement (1.25 W versus 500 mW) and transition frequency requirement (180 MHz versus 100 MHz).

Parameter Comparison

Parameter	2SD1898-P-TP	BCX56,115	BCX56-10,135
Manufacturer	Micro Commercial Co	Nexperia USA Inc.	Nexperia USA Inc.
Transistor Type	NPN	NPN	NPN
Current - Collector (Ic) (Max)	1 A	1 A	1 A
Voltage - Collector Emitter Breakdown (Max)	80 V	80 V	80 V
Vce Saturation (Max) @ Ib, Ic	400mV @ 20mA, 500mA	500mV @ 50mA, 500mA	500mV @ 50mA, 500mA
Current - Collector Cutoff (Max)	1µA (ICBO)	100nA (ICBO)	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	82 @ 500mA, 3V	63 @ 150mA, 2V	63 @ 150mA, 2V
Power - Max	500 mW	1.25 W	1.25 W
Frequency - Transition	100 MHz	180 MHz	180 MHz
Package / Case	TO-243AA	TO-243AA	TO-243AA
Supplier Device Package	SOT-89	SOT-89	SOT-89
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature (TJ)	-55°C to 150°C	150°C	150°C
Product Status	Active	Active	Active

Engineering Selection Recommendations

Both BCX56,115 and BCX56-10,135 are qualified substitutes for the 2SD1898-P-TP based on electrical and mechanical parameter equivalence. Selection between substitute options is determined by packaging and availability requirements:

BCX56,115 is supplied in Cut Tape (CT) & Digi-Reel® packaging with 90,200 pieces in stock inventory.

BCX56-10,135 is supplied in Tape & Reel (TR) packaging with 2,011 pieces in stock inventory.

Both substitute parts are ROHS3 Compliant and REACH Unaffected, meeting regulatory compliance standards. The BCX56,115 and BCX56-10,135 devices provide superior performance margins relative to the 2SD1898-P-TP, with higher power dissipation capability (1.25 W versus 500 mW) and increased transition frequency (180 MHz versus 100 MHz), ensuring functional compatibility in applications designed for the original part.

Frequently Asked Questions (FAQ)

Q: Can BCX56,115 or BCX56-10,135 be used as direct replacements for 2SD1898-P-TP in existing circuit designs?

A: Yes. Both substitute parts meet the electrical requirements (1 A maximum collector current, 80 V collector-emitter breakdown voltage) and are housed in the identical TO-243AA SOT-89 package. No circuit redesign or PCB layout modification is required.

Q: What is the difference between BCX56,115 and BCX56-10,135?

A: The primary difference is packaging format. BCX56,115 is supplied in Cut Tape (CT) & Digi-Reel® format, while BCX56-10,135 is supplied in Tape & Reel (TR) format. Electrical specifications and performance characteristics are identical between the two variants.

Q: Do the substitute parts have superior performance compared to the 2SD1898-P-TP?

A: The substitute parts exceed the minimum performance specifications of the 2SD1898-P-TP. BCX56,115 and BCX56-10,135 provide 1.25 W maximum power dissipation (versus 500 mW) and 180 MHz transition frequency (versus 100 MHz). These higher ratings provide additional performance margin but do not alter functional compatibility.

Q: Are there any compliance or regulatory differences between the main part and substitute parts?

A: Both substitute parts are ROHS3 Compliant and REACH Unaffected, meeting current regulatory standards. The 2SD1898-P-TP is REACH Unaffected. All three parts carry EAR99 ECCN classification.

Q: What packaging considerations should be evaluated when selecting between substitute options?

A: Packaging selection depends on manufacturing and assembly requirements. Cut Tape (CT) & Digi-Reel® packaging (BCX56,115) is suitable for lower-volume or mixed-component assembly operations. Tape & Reel (TR) packaging (BCX56-10,135) is optimized for high-volume automated assembly processes. Both formats are compatible with standard surface mount assembly equipment.

Q: How do the saturation voltage characteristics compare between the main part and substitutes?

A: The 2SD1898-P-TP exhibits 400 mV saturation voltage at 20 mA base current and 500 mA collector current. The substitute parts (BCX56,115 and BCX56-10,135) exhibit 500 mV saturation voltage at 50 mA base current and 500 mA collector current. Both values are within acceptable saturation performance ranges for switching applications.

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