Equivalent & Substitute Parts for 2SD2318TLU

Part Overview

The 2SD2318TLU is an NPN bipolar junction transistor manufactured by Rohm Semiconductor, designed for surface mount applications in the TO-252-3 DPAK package. This device operates at a maximum collector current of 3 A, collector-emitter breakdown voltage of 60 V, and maximum power dissipation of 15 W. The 2SD2318TLU is classified as "Not For New Designs," indicating that while the part remains in inventory, alternative solutions should be evaluated for new circuit development. Identifying equivalent and substitute parts is essential for design flexibility, supply chain continuity, and long-term product support.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) (Max)	3	A
Voltage - Collector Emitter Breakdown (Max)	60	V
Vce Saturation (Max) @ Ib, Ic	1V @ 50mA, 2A	—
Current - Collector Cutoff (Max)	100µA	ICBO
DC Current Gain (hFE) (Min) @ Ic, Vce	560 @ 500mA, 4V	—
Power - Max	15	W
Frequency - Transition	50	MHz
Operating Temperature (TJ)	150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the 2SD2318TLU is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Transistor Type: NPN
Current - Collector (Ic) (Max): 3 A (minimum requirement)
Voltage - Collector Emitter Breakdown (Max): 60 V (minimum requirement)
Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type: Surface Mount
Operating Temperature (TJ): 150°C (minimum requirement)

Parametric Equivalent Parts: The 2SD2318TLV is a parametric equivalent to the 2SD2318TLU. Both parts share identical electrical specifications across all critical parameters: 3 A collector current, 60 V breakdown voltage, 15 W power dissipation, 50 MHz transition frequency, and identical saturation characteristics. The difference lies in packaging format: 2SD2318TLU is supplied in Tape & Reel (TR) format, while 2SD2318TLV is supplied in Cut Tape (CT) & Digi-Reel® format. Both are manufactured by Rohm Semiconductor and carry identical RoHS3 compliance and MSL ratings.

Similar Parts: The 2SC6097-TL-E (onsemi) and 2SD1802T-TL-E (onsemi) are classified as similar parts rather than direct equivalents. While both maintain the required 3 A collector current and TO-252-3 DPAK package, they exhibit deviations in critical parameters that must be evaluated for circuit compatibility.

Parameter Comparison

Parameter	2SD2318TLU (Main)	2SD2318TLV (Parametric Equivalent)	2SC6097-TL-E (Similar)	2SD1802T-TL-E (Similar)
Manufacturer	Rohm Semiconductor	Rohm Semiconductor	onsemi	onsemi
Transistor Type	NPN	NPN	NPN	NPN
Current - Collector (Ic) (Max)	3 A	3 A	3 A	3 A
Voltage - Collector Emitter Breakdown (Max)	60 V	60 V	60 V	50 V
Vce Saturation (Max) @ Ib, Ic	1V @ 50mA, 2A	1V @ 50mA, 2A	135mV @ 100mA, 1A	500mV @ 100mA, 2A
Current - Collector Cutoff (Max)	100µA (ICBO)	100µA (ICBO)	1µA (ICBO)	1µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	560 @ 500mA, 4V	560 @ 500mA, 4V	300 @ 100mA, 2V	200 @ 100mA, 2V
Power - Max	15 W	15 W	800 mW	1 W
Frequency - Transition	50 MHz	50 MHz	390 MHz	150 MHz
Operating Temperature (TJ)	150°C	150°C	150°C	150°C
Package / Case	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Not For New Designs	Not For New Designs	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalent):

The 2SD2318TLV is the direct parametric equivalent to the 2SD2318TLU. Both parts maintain identical electrical performance across all specified parameters. Selection between these two should be based solely on packaging requirements: choose 2SD2318TLU for Tape & Reel supply or 2SD2318TLV for Cut Tape & Digi-Reel® supply. Both parts carry ROHS3 compliance and identical MSL ratings, ensuring regulatory and environmental compatibility.

For Alternative Solutions (Similar Parts):

The 2SC6097-TL-E and 2SD1802T-TL-E are active products from onsemi and represent alternatives for new designs. However, these parts exhibit parameter deviations that require circuit-level evaluation:

2SC6097-TL-E: Provides superior transition frequency (390 MHz versus 50 MHz) but reduced power dissipation (800 mW versus 15 W) and lower saturation voltage (135 mV versus 1 V). This part is suitable for high-frequency applications where power dissipation is not a limiting factor.
2SD1802T-TL-E: Operates at reduced collector-emitter breakdown voltage (50 V versus 60 V) and reduced power dissipation (1 W versus 15 W). This part is suitable for lower-voltage applications where the 50 V rating is sufficient.

Both alternative parts are classified as Active products, providing long-term supply assurance for new designs compared to the "Not For New Designs" status of the 2SD2318TLU.

Frequently Asked Questions (FAQ)

Q: Can 2SD2318TLV be used as a direct replacement for 2SD2318TLU?

A: Yes. The 2SD2318TLV is a parametric equivalent with identical electrical specifications. The only difference is packaging format: 2SD2318TLU uses Tape & Reel (TR) supply, while 2SD2318TLV uses Cut Tape (CT) & Digi-Reel® supply. Both parts are electrically interchangeable.

Q: What are the key differences between 2SD2318TLU and 2SC6097-TL-E?

A: The 2SC6097-TL-E has a higher transition frequency (390 MHz versus 50 MHz) and lower saturation voltage (135 mV versus 1 V), but significantly reduced power dissipation (800 mW versus 15 W). The 2SC6097-TL-E is suitable for high-frequency switching applications with lower power requirements. The 2SD2318TLU is designed for higher power dissipation applications.

Q: Can 2SD1802T-TL-E replace 2SD2318TLU in all applications?

A: The 2SD1802T-TL-E has a lower collector-emitter breakdown voltage (50 V versus 60 V) and reduced power dissipation (1 W versus 15 W). It can only be used in applications where the 50 V voltage rating is sufficient and power dissipation does not exceed 1 W. Circuit verification is required before substitution.

Q: Are all substitute parts in the same package?

A: Yes. All parts listed—2SD2318TLU, 2SD2318TLV, 2SC6097-TL-E, and 2SD1802T-TL-E—use the TO-252-3 DPAK (2 Leads + Tab) surface mount package. Pin configuration and PCB footprint are identical across all parts.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) format supplies components on continuous tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) & Digi-Reel® format supplies components on tape segments, suitable for lower-volume or mixed-component orders. Electrical performance is identical; packaging format affects supply chain logistics only.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed—2SD2318TLU, 2SD2318TLV, 2SC6097-TL-E, and 2SD1802T-TL-E—are ROHS3 compliant and carry MSL rating of 1 (Unlimited), ensuring compatibility with modern manufacturing processes and environmental regulations.

Q: Why is 2SD2318TLU marked "Not For New Designs"?

A: The "Not For New Designs" status indicates that while the part remains available in inventory, Rohm Semiconductor recommends evaluating alternative solutions for new circuit development. For new designs, consider the active alternatives 2SC6097-TL-E or 2SD1802T-TL-E, or use the parametric equivalent 2SD2318TLV if Rohm Semiconductor parts are preferred.

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