2SD2185GRL Equivalent & Substitute Parts

Part Overview

The 2SD2185GRL is an NPN bipolar junction transistor manufactured by Panasonic Electronic Components, rated for 50 V collector-emitter breakdown voltage and 3 A maximum collector current. This device is packaged in the MiniP3-F2 surface mount configuration and is classified as obsolete. Due to its obsolete status, equivalent substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term component availability for new production and field replacements.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	50	V
Current - Collector (Ic) (Max)	3	A
Power - Max	1	W
Frequency - Transition	120	MHz
Operating Temperature (TJ)	150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-243AA	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the 2SD2185GRL is determined by strict electrical and mechanical compatibility across the following critical parameters:

Mandatory Matching Parameters:

Transistor Type: NPN
Voltage - Collector Emitter Breakdown (Max): 50 V
Current - Collector (Ic) (Max): 3 A
Mounting Type: Surface Mount
Package / Case: TO-243AA
Operating Temperature (TJ): 150 °C

Allowable Variation Parameters:

Power - Max: Equal to or greater than 1 W
Frequency - Transition: Equal to or greater than 120 MHz
Vce Saturation (Max): Equal to or less than 300 mV (at comparable test conditions)
DC Current Gain (hFE) (Min): Equal to or greater than 120
Current - Collector Cutoff (Max): Equal to or less than 100 nA

All substitute parts listed below meet or exceed the electrical specifications of the 2SD2185GRL while maintaining identical mechanical compatibility through the TO-243AA package standard.

Parameter Comparison

Parameter	2SD2185GRL (Main)	2SC5964-TD-E	2SC5964-TD-H	2SCR533PFRAT100	2SD1624S-TD-E	2SD1624T-TD-E	PBSS4350X,135
Manufacturer	Panasonic	onsemi	onsemi	Rohm Semiconductor	onsemi	onsemi	Nexperia USA Inc.
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
Transistor Type	NPN	NPN	NPN	NPN	NPN	NPN	NPN
Voltage - Collector Emitter Breakdown (Max)	50 V	50 V	50 V	50 V	50 V	50 V	50 V
Current - Collector (Ic) (Max)	3 A	3 A	3 A	3 A	3 A	3 A	3 A
Power - Max	1 W	3.5 W	3.5 W	500 mW	500 mW	500 mW	1.6 W
Frequency - Transition	120 MHz	380 MHz	380 MHz	320 MHz	150 MHz	150 MHz	100 MHz
Vce Saturation (Max) @ Ib, Ic	300 mV @ 50 mA, 1 A	290 mV @ 100 mA, 2 A	290 mV @ 100 mA, 2 A	350 mV @ 50 mA, 1 A	500 mV @ 100 mA, 2 A	500 mV @ 100 mA, 2 A	370 mV @ 300 mA, 3 A
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 200 mA, 2 V	200 @ 100 mA, 2 V	200 @ 100 mA, 2 V	180 @ 50 mA, 3 V	140 @ 100 mA, 2 V	200 @ 100 mA, 2 V	300 @ 1 A, 2 V
Current - Collector Cutoff (Max)	100 nA	1 µA	1 µA	1 µA	1 µA	1 µA	100 nA
Operating Temperature (TJ)	150 °C	150 °C	150 °C	150 °C	150 °C	150 °C	150 °C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-243AA	TO-243AA	TO-243AA	TO-243AA	TO-243AA	TO-243AA	TO-243AA
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Compliance):

The 2SC5964-TD-E and 2SC5964-TD-H from onsemi are the preferred substitutes for the 2SD2185GRL. Both parts are electrically superior, offering 3.5 W power dissipation (versus 1 W) and 380 MHz transition frequency (versus 120 MHz), while maintaining identical voltage and current ratings. Both are ROHS3 compliant and carry active product status. The 2SC5964-TD-H is available in Tape & Reel packaging with 4829 pieces in stock, providing superior availability for high-volume applications.

The 2SD1624T-TD-E from onsemi offers the highest inventory availability at 19,388 pieces in Tape & Reel format. While its 150 MHz transition frequency matches the original specification more closely and its 500 mW power rating is lower, it maintains full electrical compatibility and ROHS3 compliance with active product status.

Secondary Substitutes (Specialized Applications):

The 2SCR533PFRAT100 from Rohm Semiconductor is qualified to AEC-Q101 automotive standards and carries active product status with ROHS3 compliance. This part is suitable for automotive-grade applications requiring equivalent electrical performance.

The PBSS4350X,135 from Nexperia USA Inc. is qualified to AEC-Q100 automotive standards with active product status and ROHS3 compliance. Its 1.6 W power rating and 100 MHz transition frequency provide performance characteristics closely aligned with the original 2SD2185GRL.

Compliance Considerations:

All substitute parts listed are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, matching the original part's environmental specifications. Selection should prioritize parts with active product status to ensure long-term availability and manufacturing continuity.

Frequently Asked Questions (FAQ)

Q: Can the 2SC5964-TD-E directly replace the 2SD2185GRL in existing designs?

A: Yes. The 2SC5964-TD-E meets all mandatory electrical parameters: 50 V breakdown voltage, 3 A maximum collector current, NPN type, and TO-243AA package. Its superior power rating (3.5 W versus 1 W) and transition frequency (380 MHz versus 120 MHz) provide enhanced performance margins without requiring circuit modifications.

Q: What is the difference between 2SC5964-TD-E and 2SC5964-TD-H?

A: Both parts are electrically identical with matching electrical specifications. The primary difference is packaging format: 2SC5964-TD-E is supplied in Cut Tape (CT) & Digi-Reel format, while 2SC5964-TD-H is supplied in Tape & Reel (TR) format. The 2SC5964-TD-H offers higher inventory availability (4829 pieces versus 2255 pieces).

Q: Are there any applications where the 2SD1624T-TD-E would be preferred over the 2SC5964-TD-H?

A: The 2SD1624T-TD-E is suitable for applications where transition frequency requirements are lower (150 MHz versus 380 MHz) and power dissipation is limited to 500 mW. Its significantly higher inventory (19,388 pieces) makes it advantageous for high-volume production requiring extended lead-time security. Both parts maintain full electrical compatibility with the original specification.

Q: What does the TO-243AA package designation mean?

A: TO-243AA is the standardized package classification for surface mount transistors in the MiniP3-F2 physical form factor. All substitute parts listed use this identical package, ensuring mechanical and thermal compatibility with existing PCB layouts and solder reflow processes.

Q: Why do some substitute parts have higher Vce saturation values?

A: Vce saturation is measured at different test conditions across manufacturers. The 2SD1624S-TD-E and 2SD1624T-TD-E specify 500 mV at 100 mA and 2 A, compared to the original 300 mV at 50 mA and 1 A. These differences reflect different operating points and do not indicate incompatibility. Both values remain within acceptable saturation ranges for switching applications.

Q: What is the significance of AEC-Q101 and AEC-Q100 qualifications?

A: AEC-Q101 (2SCR533PFRAT100) and AEC-Q100 (PBSS4350X,135) are automotive-grade qualifications indicating enhanced reliability testing and quality assurance. These parts are suitable for automotive applications requiring higher reliability standards. Non-automotive applications can use any listed substitute.

Q: Is ROHS3 compliance mandatory for my application?

A: ROHS3 compliance is required for products sold in the European Union and many other markets. All active substitute parts listed are ROHS3 compliant. The original 2SD2185GRL does not specify ROHS status due to its obsolete classification.

Q: Can I use PBSS4350X,135 as a direct replacement if my design uses the original 2SD2185GRL?

A: Yes. The PBSS4350X,135 meets all mandatory electrical specifications and uses the identical TO-243AA package. Its 1.6 W power rating and 100 MHz transition frequency provide performance characteristics closely aligned with the original part, making it suitable for direct substitution in existing designs.

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