Equivalent & Substitute Parts for DSC550100L

Part Overview

The DSC550100L is a Panasonic Electronic Components NPN bipolar junction transistor (BJT) rated for 20 V collector-emitter breakdown voltage and 500 mA maximum collector current. This surface mount device in SMini3-F2-B packaging is designed for general-purpose switching and amplification applications requiring compact form factors and moderate frequency operation up to 150 MHz.

The DSC550100L has been discontinued at DiGi Electronics. Equivalent substitute parts are available from Rohm Semiconductor with enhanced electrical specifications and active product status, making them suitable alternatives for new designs and production continuity.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) Max	500	mA
Voltage - Collector Emitter Breakdown (Max)	20	V
Power - Max	150	mW
Frequency - Transition	150	MHz
Operating Temperature (TJ)	150	°C
Mounting Type	Surface Mount	—
DC Current Gain (hFE) Min	200	—

Substitute Part Grouping Explanation

Substitution of the DSC550100L is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

Transistor type must be NPN
Maximum collector current (Ic) must equal or exceed 500 mA
Collector-emitter breakdown voltage (VCEO) must equal or exceed 20 V
Maximum power dissipation must equal or exceed 150 mW
DC current gain (hFE) minimum must equal or exceed 200
Operating temperature range must support 150°C junction temperature

Mechanical Compatibility Criteria:

Mounting type must be surface mount
Package footprint must be compatible with SMini3-F2-B or equivalent small outline packages

The substitute parts 2SCR502U3HZGT106 and 2SCR502U3T106 from Rohm Semiconductor meet all minimum electrical requirements with enhanced specifications. Both devices exceed the DSC550100L in collector-emitter breakdown voltage (30 V vs. 20 V), power dissipation (200 mW vs. 150 mW), and transition frequency (360 MHz vs. 150 MHz), providing superior performance margins for the same collector current rating.

Parameter Comparison

Parameter	DSC550100L (Panasonic)	2SCR502U3HZGT106 (Rohm)	2SCR502U3T106 (Rohm)
Transistor Type	NPN	NPN	NPN
Current - Collector (Ic) Max	500 mA	500 mA	500 mA
Voltage - Collector Emitter Breakdown (Max)	20 V	30 V	30 V
Vce Saturation (Max)	400 mV @ 20 mA, 500 mA	300 mV @ 10 mA, 200 mA	300 mV @ 10 mA, 200 mA
Current - Collector Cutoff (Max)	100 nA	200 nA	200 nA
DC Current Gain (hFE) Min	200 @ 500 mA, 2 V	200 @ 100 mA, 2 V	200 @ 100 mA, 2 V
Power - Max	150 mW	200 mW	200 mW
Frequency - Transition	150 MHz	360 MHz	360 MHz
Operating Temperature (TJ)	150°C	150°C	150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	SC-85	SC-70, SOT-323	SC-70, SOT-323
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Discontinued	Active	Active

Engineering Selection Recommendations

2SCR502U3HZGT106 Selection: This part is recommended for applications requiring automotive-grade qualification. The device carries AEC-Q101 certification and ROHS3 compliance, making it suitable for automotive and industrial environments. The enhanced electrical specifications (30 V VCEO, 200 mW power rating, 360 MHz transition frequency) provide additional design margin over the discontinued DSC550100L. Inventory availability is 1944 units.

2SCR502U3T106 Selection: This part is recommended for general commercial and industrial applications where automotive qualification is not required. It provides identical electrical performance to the 2SCR502U3HZGT106 with ROHS3 compliance and REACH unaffected status. Inventory availability is 811 units. Both Rohm devices maintain active product status, ensuring long-term supply continuity.

Package Consideration: The substitute parts use SC-70 or SOT-323 packaging (UMT3 supplier package) compared to the original SC-85 (SMini3-F2-B). PCB layout modifications are required to accommodate the different package footprint.

Frequently Asked Questions (FAQ)

Q: Can the 2SCR502U3HZGT106 or 2SCR502U3T106 directly replace the DSC550100L without circuit modifications?

A: Both Rohm devices meet or exceed all electrical specifications of the DSC550100L. However, package footprint differences (SC-70/SOT-323 versus SC-85) require PCB layout changes. Electrical circuit operation remains compatible when proper PCB layout is implemented.

Q: What is the difference between 2SCR502U3HZGT106 and 2SCR502U3T106?

A: Both parts share identical electrical specifications and performance characteristics. The primary difference is qualification status: 2SCR502U3HZGT106 carries AEC-Q101 automotive qualification, while 2SCR502U3T106 is qualified for general commercial and industrial use. Select based on application requirements.

Q: Are the Rohm substitute parts suitable for high-frequency applications?

A: Yes. Both Rohm devices feature 360 MHz transition frequency, compared to 150 MHz for the DSC550100L. This enhanced frequency capability supports higher-speed switching applications and provides additional performance margin for existing designs.

Q: What compliance certifications apply to the substitute parts?

A: Both 2SCR502U3HZGT106 and 2SCR502U3T106 are ROHS3 compliant. The 2SCR502U3HZGT106 additionally carries AEC-Q101 automotive qualification. Both are REACH unaffected. The original DSC550100L is RoHS compliant.

Q: How do the saturation voltage characteristics compare?

A: The Rohm substitutes exhibit lower saturation voltage (300 mV at specified test conditions) compared to the DSC550100L (400 mV), resulting in reduced power dissipation during saturation operation and improved switching efficiency.

Q: Is inventory availability a consideration for production planning?

A: Yes. The 2SCR502U3HZGT106 has 1944 units in stock, while 2SCR502U3T106 has 811 units available. Both represent active products with ongoing supply. The original DSC550100L is discontinued and no longer available through DiGi Electronics.

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