2SC4132T100Q Equivalent & Substitute Parts Reference

Part Overview

The Rohm Semiconductor 2SC4132T100Q is an NPN bipolar junction transistor (BJT) with a collector-emitter voltage rating of 120 V, a collector current rating of 2 A, and a transition frequency of 80 MHz, designed for surface mount (MPT3/TO-243AA). This part is classified as "Not For New Designs," indicating that engineers may require alternative or substitute parts for new projects or ongoing production. The need for alternative models arises to ensure continued design compatibility and procurement, especially given changes in lifecycle status.

Key Parameters

Parameter	Value
Manufacturer	Rohm Semiconductor
Manufacturer Part Number	2SC4132T100Q
Category	Transistors, Bipolar (BJT)
Transistor Type	NPN
Current - Collector (Ic) (Max)	2 A
Voltage - Collector Emitter Breakdown (Max)	120 V
Vce Saturation (Max) @ Ib, Ic	2V @ 100mA, 1A
Current - Collector Cutoff (Max)	1µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 100mA, 5V
Power - Max	2 W
Frequency - Transition	80MHz
Operating Temperature	150°C (TJ)
Mounting Type	Surface Mount
Package / Case	TO-243AA
Supplier Device Package	MPT3
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitutes for the 2SC4132T100Q are identified strictly on matching category (Transistors, Bipolar (BJT)), similar or higher electrical ratings for voltage, current, and power, package similarity, compliance status, and active product lifecycle. Parameters governing substitution include:

Transistor Type (NPN or equivalent)
Collector-Emitter Voltage (Vce)
Collector Current (Ic)
Maximum Power Rating
Frequency - Transition
Package type and Mounting Method
Compliance certifications (RoHS, REACH)
Product status (Active preferred)

Direct and similar substitutes are selected only if they meet or exceed these requirements.

Parameter Comparison

Parameter	2SC4132T100Q Rohm Semiconductor	FZT605TA Diodes Incorporated	2SC3647S-TD-E onsemi
Transistor Type	NPN	NPN - Darlington	NPN
Current - Collector (Ic) (Max)	2 A	1.5 A	2 A
Voltage - Collector Emitter Breakdown (Max)	120 V	120 V	100 V
Vce Saturation (Max) @ Ib, Ic	2V @ 100mA, 1A	1.5V @ 1mA, 1A	400mV @ 100mA, 1A
Current - Collector Cutoff (Max)	1µA (ICBO)	10µA	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 100mA, 5V	2000 @ 1A, 5V	100 @ 100mA, 5V
Power - Max	2 W	2 W	500 mW
Frequency - Transition	80MHz	150MHz	120MHz
Operating Temperature	150°C (TJ)	-55°C ~ 150°C (TJ)	150°C (TJ)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-243AA	TO-261-4, TO-261AA	TO-243AA
Supplier Device Package	MPT3	SOT-223-3	PCP
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Not For New Designs	Active	Active

Engineering Selection Recommendations

Based strictly on product status and compliance certifications, both FZT605TA (Diodes Incorporated) and 2SC3647S-TD-E (onsemi) are classified as Active and hold ROHS3 compliance and REACH unaffected status. They also possess Moisture Sensitivity Level (MSL) 1 (Unlimited). The 2SC4132T100Q, by contrast, is Not For New Designs. When selecting substitutes, parts that match these compliance criteria and are classified as Active should be prioritized.

Frequently Asked Questions (FAQ)

Q: What parameters are critical when selecting a substitute for the 2SC4132T100Q?
A: The critical parameters are transistor type (NPN), maximum collector-emitter voltage (Vce), maximum collector current (Ic), power rating, transition frequency, package/case, mounting type, RoHS/REACH compliance, and product status.

Q: Are FZT605TA and 2SC3647S-TD-E direct replacements for 2SC4132T100Q?
A: FZT605TA and 2SC3647S-TD-E meet the allowed substitute criteria by matching on transistor type, voltage and current ratings, compliance status, and mounting method, though package and some electrical characteristics differ.

Q: Can I use an alternative in a design requiring the exact MPT3 (TO-243AA) footprint?
A: 2SC3647S-TD-E uses the same TO-243AA package, while FZT605TA utilizes TO-261-4 (SOT-223-3). Package compatibility should be confirmed when substituting for layout-critical applications.

Q: Are substitute parts compliant with RoHS and REACH standards?
A: All parts listed, including FZT605TA and 2SC3647S-TD-E, are ROHS3 Compliant and REACH Unaffected.

Q: Does product status affect the suitability of a substitute?
A: Only Active status devices are considered suitable substitutes, as Not For New Designs devices like 2SC4132T100Q may not be recommended for new projects or long-term supply.

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