Equivalent & Substitute Parts Reference for 2SB1184TLP

Part Overview

The 2SB1184TLP, manufactured by Rohm Semiconductor, is a Bipolar (BJT) PNP transistor featuring a maximum collector-emitter breakdown voltage of 50 V, a maximum collector current of 3 A, a transition frequency of 70MHz, and packaged as a surface mount CPT3 (TO-252-3, DPAK/SC-63 equivalent). The device supports a power dissipation rating of 1 W and is compliant with ROHS3 and REACH standards.

The product status is marked as "Not For New Designs", making it necessary to identify alternative models for future design-ins and ongoing production sourcing. Equivalent and substitute models are essential for maintaining design continuity and inventory availability in light of lifecycle status changes.

Key Parameters

Parameter	Main Part (2SB1184TLP)
Transistor Type	PNP
Current - Collector (Ic) (Max)	3 A
Voltage - Collector Emitter Breakdown (Max)	50 V
Vce Saturation (Max) @ Ib, Ic	1V @ 200mA, 2A
Current - Collector Cutoff (Max) (ICBO)	1µA
DC Current Gain (hFE) (Min)	82 @ 500mA, 3V
Power - Max	1 W
Frequency - Transition	70MHz
Operating Temperature	150°C (TJ)
Mounting Type	Surface Mount
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute and equivalent part selection is based strictly on matching or exceeding the following core parameters for the "Transistors, Bipolar (BJT)" category:

Transistor Type: PNP
Collector Current (Ic) (Max)
Collector-Emitter Breakdown Voltage (Vce)
Saturation Voltage (Vce Sat)
Cutoff Current (ICBO)
DC Current Gain (hFE)
Maximum Power Dissipation
Frequency - Transition (ft)
Operating Temperature (TJ)
Mounting Type
Package / Case
Compliance Status (RoHS, REACH, MSL)

Only parts meeting or exceeding these specifications and sharing the physical footprint (TO-252-3, DPAK, SC-63) constitute valid substitutes. No technical extrapolation is performed beyond the parameters provided.

Parameter Comparison

Part Number	Manufacturer	Transistor Type	Ic (Max)	Vce Breakdown (Max)	Vce Saturation (Max)	ICBO (Max)	hFE (Min)	Power (Max)	Frequency (ft)	Operating Temp (TJ)	Mounting Type	Package / Case	RoHS Status	REACH Status	MSL	Product Status
2SB1184TLP	Rohm Semiconductor	PNP	3 A	50 V	1V @ 200mA, 2A	1µA	82 @ 500mA, 3V	1 W	70MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3	Unaffected	1 (Unlimited)	Not For New Designs
2DB1184Q-13	Diodes Incorporated	PNP	3 A	50 V	1V @ 200mA, 2A	1µA	120 @ 500mA, 3V	15 W	110MHz	-55°C ~ 150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3	Unaffected	1 (Unlimited)	Active
2SA2126-TL-E	onsemi	PNP	3 A	50 V	520mV @ 100mA, 2A	1µA	200 @ 100mA, 2V	800 mW	390MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3	Unaffected	1 (Unlimited)	Active
2SA2126-TL-H	onsemi	PNP	3 A	50 V	520mV @ 100mA, 2A	1µA	200 @ 100mA, 2V	800 mW	390MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3	Unaffected	1 (Unlimited)	Obsolete
2SB1201S-TL-E	onsemi	PNP	2 A	50 V	700mV @ 50mA, 1A	100nA	100 @ 100mA, 2V	800 mW	150MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3	Unaffected	1 (Unlimited)	Active
2SB1202T-TL-E	onsemi	PNP	3 A	50 V	700mV @ 100mA, 2A	1µA	200 @ 100mA, 2V	1 W	150MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3	Unaffected	1 (Unlimited)	Obsolete
2SB1204S-TL-E	onsemi	PNP	8 A	50 V	500mV @ 200mA, 4A	1µA	140 @ 500mA, 2V	1 W	130MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3	Unaffected	1 (Unlimited)	Obsolete
2SB1184-Q-TP	Micro Commercial Co	PNP	3 A	50 V	1V @ 200mA, 2A	1µA	82 @ 500mA, 3V	1 W	70MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3	Unaffected	1 (Unlimited)	Active
2SB1184-R-TP	Micro Commercial Co	PNP	3 A	50 V	1V @ 200mA, 2A	1µA	82 @ 500mA, 3V	1 W	70MHz	150°C (TJ)	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	ROHS3	Unaffected	1 (Unlimited)	Active

Engineering Selection Recommendations

Selection of substitute parts must prioritize product status, environmental compliance, and certification. All listed equivalents are ROHS3 compliant, REACH unaffected, and demonstrate MSL 1 suitability. Units marked “Active” are suitable for ongoing design and future procurement. Parts marked “Obsolete” or “Not For New Designs” should only be used for existing designs unless there is no active alternative. Package compatibility (TO-252-3, DPAK, SC-63) is essential for mechanical interchangeability.

Frequently Asked Questions (FAQ)

Q1: What parameters determine a valid substitute for the 2SB1184TLP?
A1: Substitutes must match the transistor type (PNP), collector current (3 A), breakdown voltage (50 V), mounting type, package/case, as well as meet or exceed core electrical values such as Vce(sat), hFE, frequency, power rating, and compliance standards.

Q2: Is package compatibility mandatory when selecting substitutes?
A2: Yes. Only devices in the TO-252-3, DPAK (2 Leads + Tab), SC-63 package are suitable for drop-in replacement without mechanical redesign.

Q3: Why is product status important in substitute selection?
A3: "Active" status ensures ongoing manufacturability and availability. "Obsolete" or "Not For New Designs" status requires careful consideration and is generally selected for sustaining production or repair of established designs.

Q4: What compliance certifications are included in the substitution evaluation?
A4: Only devices with ROHS3 compliance, REACH unaffected status, and MSL 1 rating are considered, ensuring environmental and process compatibility.

Q5: Are there differences in electrical parameters among these substitutes?
A5: Some substitutes offer improved characteristics such as higher current gain, transition frequency, or power dissipation. Selection should be based strictly on the application's required minimum parameters and form factor compatibility.

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