2SD1664T100P Equivalent & Substitute Parts Reference

Part Overview

The Rohm Semiconductor 2SD1664T100P is an NPN bipolar junction transistor (BJT) designed for general-purpose amplification and switching applications. This part belongs to the transistors, bipolar (BJT) category and features a maximum collector current of 1 A, maximum collector-emitter voltage of 32 V, 2 W power dissipation, and a transition frequency of 150 MHz. The product is supplied in surface mount MPT3/TO-243AA packaging. The 2SD1664T100P is marked as Not For New Designs, necessitating the identification of alternative models to ensure lifecycle continuity, manufacturing support, and design-in compatibility.

Key Parameters

Parameter	Value
Transistor Type	NPN
Current - Collector (Ic) (Max)	1 A
Voltage - Collector Emitter Breakdown (Max)	32 V
Vce Saturation (Max) @ Ib, Ic	400mV @ 50mA, 500mA
Current - Collector Cutoff (Max)	500nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	82 @ 100mA, 3V
Power - Max	2 W
Frequency - Transition	150MHz
Operating Temperature	150°C (TJ)
Mounting Type	Surface Mount
Package / Case	TO-243AA
Supplier Device Package	MPT3
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution for the 2SD1664T100P is determined by strict matching or exceeding of critical electrical and mechanical parameters, as follows: transistor type (NPN), maximum collector current (≥1 A), collector-emitter voltage (≥32 V), Vce saturation (≤400mV @ prescribed Ib, Ic), current gain (≥82 @ relevant conditions), transition frequency (≥150MHz), power dissipation (≥2 W), mounting type (surface mount), and package compatibility (TO-243AA/SOT-89-3/SOT-89). Only products with defined ROHS3 and REACH compliance and equal or better MSL ratings are considered.

Parameter Comparison

Parameter	2SD1664T100P Rohm Semiconductor	2DD1664P-13 Diodes Incorporated	BSR41,115 Nexperia USA Inc.	BCX54-16,135 Nexperia USA Inc.
Transistor Type	NPN	NPN	NPN	NPN
Current - Collector (Ic) (Max)	1 A	1 A	1 A	1 A
Voltage - Collector Emitter Breakdown (Max)	32 V	32 V	60 V	45 V
Vce Saturation (Max) @ Ib, Ic	400mV @ 50mA, 500mA	400mV @ 50mA, 500mA	500mV @ 50mA, 500mA	500mV @ 50mA, 500mA
Current - Collector Cutoff (Max) (ICBO)	500nA	100nA	100nA	100nA
DC Current Gain (hFE) (Min)	82 @ 100mA, 3V	82 @ 100mA, 3V	100 @ 100mA, 5V	100 @ 150mA, 2V
Power - Max	2 W	1 W	1.35 W	1.25 W
Frequency - Transition	150MHz	280MHz	100MHz	180MHz
Operating Temperature	150°C (TJ)	-55°C ~ 150°C (TJ)	150°C (TJ)	150°C (TJ)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-243AA	TO-243AA	TO-243AA	TO-243AA
Supplier Device Package	MPT3	SOT-89-3	SOT-89	SOT-89
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The 2SD1664T100P is classified as Not For New Designs. Substitute parts 2DD1664P-13, BSR41,115, and BCX54-16,135 are all listed as Active with comparable regulatory compliance (ROHS3 and REACH), and moisture sensitivity level (MSL 1, Unlimited). Only parts specified as compliant in the provided data are presented as substitutes.

Frequently Asked Questions (FAQ)

Q: What key parameters must match when substituting the 2SD1664T100P?
A: Substitution requires matching or exceeding transistor type, maximum collector current, collector-emitter voltage, saturation voltage, DC current gain, power dissipation, frequency, mounting type, package/case, and regulatory compliance.

Q: Are the substitute packages mechanically compatible with the 2SD1664T100P?
A: All substitutes are described with the same or equivalent TO-243AA/SOT-89-3/SOT-89 surface mount package family.

Q: Do the substitute transistors meet the same compliance and reliability standards?
A: All substitutes are ROHS3 compliant, REACH unaffected, and rated MSL 1 (Unlimited).

Q: Why is it necessary to seek substitutes for the 2SD1664T100P?
A: The 2SD1664T100P is Not For New Designs, making sourcing alternatives essential for ongoing and new projects.

Q: Are there any differences in maximum power dissipation among the substitute parts?
A: Yes. The 2SD1664T100P is rated at 2 W. 2DD1664P-13 is rated at 1 W, BSR41,115 at 1.35 W, and BCX54-16,135 at 1.25 W, as specified in the data provided.

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