2SA1585STPQ Equivalent & Substitute Parts Reference

Part Overview

2SA1585STPQ is a PNP Bipolar Junction Transistor (BJT) with a 20 V maximum collector-emitter voltage and 2 A collector current, packaged for through-hole mounting (SPT, SC-72 Formed Leads). The device delivers a 400 mW power rating, 240 MHz transition frequency, and is rated for operation up to 150°C junction temperature. The part is currently classified as obsolete. It is necessary to identify equivalent or substitute transistor models due to its obsolete status to support ongoing repairs, maintenance, or new designs requiring matching critical electrical and mechanical parameters.

Key Parameters

Parameter	2SA1585STPQ Value
Transistor Type	PNP
Voltage - Collector Emitter Breakdown (Max)	20 V
Current - Collector (Ic) (Max)	2 A
Vce Saturation (Max) @ Ib, Ic	500mV @ 100mA, 2A
Current - Collector Cutoff (Max)	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 100mA, 2V
Power - Max	400 mW
Frequency - Transition	240 MHz
Operating Temperature (TJ)	150°C
Mounting Type	Through Hole
Package / Case	SC-72 Formed Leads
Supplier Device Package	SPT
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8541.21.0075

Substitute Part Grouping Explanation

Selection of substitute parts for 2SA1585STPQ is based strictly on matching the following key electrical and mechanical parameters: PNP transistor type, maximum voltage rating (20 V), maximum collector current (2 A), maximum collector cutoff current (100 nA), power dissipation, operating frequency, DC current gain, maximum saturation voltage, maximum junction temperature, and compliance status. Mounting type and package must be considered for footprint compatibility.

Parameter Comparison

Parameter	2SA1585STPQ (Rohm Semiconductor)	PBSS5320T,215 (Nexperia USA Inc.)
Transistor Type	PNP	PNP
Voltage - Collector Emitter Breakdown (Max)	20 V	20 V
Current - Collector (Ic) (Max)	2 A	2 A
Vce Saturation (Max) @ Ib, Ic	500mV @ 100mA, 2A	300mV @ 300mA, 3A
Current - Collector Cutoff (Max)	100nA (ICBO)	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 100mA, 2V	200 @ 1A, 2V
Power - Max	400 mW	540 mW
Frequency - Transition	240 MHz	100 MHz
Operating Temperature (TJ)	150°C	150°C
Mounting Type	Through Hole	Surface Mount
Package / Case	SC-72 Formed Leads	TO-236-3, SC-59, SOT-23-3
Supplier Device Package	SPT	TO-236AB
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8541.21.0075	8541.21.0075

Engineering Selection Recommendations

2SA1585STPQ is classified as obsolete, and PBSS5320T,215 is active. Both parts are ROHS3 compliant and REACH unaffected, with ECCN EAR99 and matching HTSUS codes. Compliance status is suitable for use in designs requiring these certifications and regulatory classifications.

Frequently Asked Questions (FAQ)

Q1: What parameters must match for substituting 2SA1585STPQ with PBSS5320T,215?
A1: Substitution is evaluated based on transistor type, maximum voltage rating, collector current, current gain, collector cutoff current, power dissipation, transition frequency, and compliance (RoHS, REACH, ECCN, HTSUS).

Q2: Are the package and mounting style identical between 2SA1585STPQ and PBSS5320T,215?
A2: 2SA1585STPQ uses a through-hole SC-72 Formed Leads (SPT) package, while PBSS5320T,215 is supplied in surface mount TO-236AB (TO-236-3, SC-59, SOT-23-3). Consider mechanical and assembly compatibility for replacement.

Q3: Are electrical and thermal parameters comparable for these parts?
A3: Critical electrical parameters such as PNP type, 20 V voltage rating, 2 A collector current, and maximum operating temperature (150°C) are matched.

Q4: Is compliance the same for both parts?
A4: Both parts are ROHS3 compliant and REACH unaffected, with the same ECCN (EAR99) and HTSUS (8541.21.0075) classifications.

Q5: Can PBSS5320T,215 replace 2SA1585STPQ in all applications?
A5: Substitution is based solely on matching supplied parameters; mechanical differences in package and mounting style are not interchangeable unless specifically supported by the design.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message