CMPD2004C BK PBFREE Equivalent & Substitute Parts

Part Overview

The CMPD2004C BK PBFREE is a general-purpose diode array manufactured by Central Semiconductor Corp, configured as a 1 Pair Common Cathode design in SOT-23 surface mount package. This component is rated for 240 V DC reverse voltage with 225 mA average rectified current per diode and features fast recovery characteristics with 50 ns reverse recovery time. The part is currently in Active product status with 1073 units in stock.

Substitute parts are necessary when the original manufacturer part becomes unavailable, when alternative packaging formats are required for production processes, or when specific supply chain requirements necessitate qualified alternatives from different manufacturers.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	—
Voltage - DC Reverse (Vr) (Max)	240	V
Current - Average Rectified (Io) (per Diode)	225	mA
Voltage - Forward (Vf) (Max) @ If	1	V @ 100 mA
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	100	nA @ 240 V
Operating Temperature - Junction	-65 to 150	°C
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the CMPD2004C BK PBFREE is valid when the replacement part maintains electrical equivalence across all critical parameters. The following parameters determine substitutability:

Electrical Equivalence Requirements:

Diode Configuration: 1 Pair Common Cathode (identical topology required)
Voltage - DC Reverse (Vr) (Max): 240 V (minimum rating must equal or exceed)
Current - Average Rectified (Io) (per Diode): 225 mA (minimum rating must equal or exceed)
Voltage - Forward (Vf) (Max) @ If: 1 V @ 100 mA (maximum rating must equal or be lower)
Reverse Recovery Time (trr): 50 ns (maximum rating must equal or be lower)
Current - Reverse Leakage @ Vr: 100 nA @ 240 V (maximum rating must equal or be lower)

Mechanical Equivalence Requirements:

Package / Case: TO-236-3, SC-59, SOT-23-3 (identical footprint and pinout)
Mounting Type: Surface Mount (identical assembly process compatibility)

Compliance Requirements:

RoHS Status: ROHS3 Compliant (regulatory equivalence)

The substitute parts GSD2004C-G3-18 and GSD2004C-HE3-08, both manufactured by Vishay General Semiconductor - Diodes Division, meet all electrical and mechanical equivalence criteria. Differences in packaging format (Cut Tape vs. Tape & Reel) and product status do not affect functional substitutability at the component level.

Parameter Comparison

Parameter	CMPD2004C BK PBFREE	GSD2004C-G3-18	GSD2004C-HE3-08
Manufacturer	Central Semiconductor Corp	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Voltage - DC Reverse (Vr) (Max)	240 V	240 V	240 V
Current - Average Rectified (Io) (per Diode)	225 mA	225 mA	225 mA
Voltage - Forward (Vf) (Max) @ If	1 V @ 100 mA	1 V @ 100 mA	1 V @ 100 mA
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	50 ns	50 ns	50 ns
Current - Reverse Leakage @ Vr	100 nA @ 240 V	100 nA @ 240 V	100 nA @ 240 V
Operating Temperature - Junction (Max)	150°C	150°C	150°C
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Bulk	Cut Tape (CT)	Tape & Reel (TR)
Product Status	Active	Active	Last Time Buy

Engineering Selection Recommendations

GSD2004C-G3-18 Selection Criteria:

GSD2004C-G3-18 is electrically and mechanically equivalent to CMPD2004C BK PBFREE with all critical parameters matching specification. This part is supplied in Cut Tape (CT) packaging format with 20722 units in stock and maintains Active product status. Selection of this substitute is appropriate for applications requiring standard commercial-grade components with continuous manufacturer support and availability.

GSD2004C-HE3-08 Selection Criteria:

GSD2004C-HE3-08 is electrically and mechanically equivalent to CMPD2004C BK PBFREE with all critical parameters matching specification. This part is supplied in Tape & Reel (TR) packaging format with 80300 units in stock. The component carries Automotive grade qualification and AEC-Q101 certification, indicating suitability for automotive applications. However, this part is designated Last Time Buy status, indicating the manufacturer will discontinue production. Selection of this substitute is appropriate only when automotive qualification is a system requirement and when long-term availability concerns are acceptable for the application timeline.

Frequently Asked Questions (FAQ)

Q: Can GSD2004C-G3-18 and GSD2004C-HE3-08 be used interchangeably with CMPD2004C BK PBFREE in the same circuit?

A: Yes. Both substitute parts maintain identical electrical characteristics across all specified parameters including reverse voltage rating, forward current capacity, reverse recovery time, and leakage current. The SOT-23 package footprint and pinout are identical, enabling direct board-level substitution without circuit modification.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Cut Tape packaging supplies components on continuous tape that is cut to length during distribution, suitable for lower-volume orders and manual assembly processes. Tape & Reel packaging supplies components on continuous tape wound on reels, optimized for high-volume automated assembly lines. Both formats contain identical components; the difference is in supply chain logistics and assembly process compatibility.

Q: Why is GSD2004C-HE3-08 marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has announced discontinuation of this part number. Existing inventory will be sold until depletion, after which the part will no longer be available. This status does not affect the component's electrical performance or reliability for current applications but indicates limited future availability.

Q: Does the Automotive grade qualification of GSD2004C-HE3-08 affect its use in non-automotive applications?

A: No. Automotive qualification represents an additional quality and testing standard that exceeds commercial-grade requirements. A component qualified to automotive standards is fully suitable for commercial applications. The reverse is not true: commercial-grade components may not meet automotive qualification requirements.

Q: Are all three parts ROHS3 compliant?

A: Yes. CMPD2004C BK PBFREE, GSD2004C-G3-18, and GSD2004C-HE3-08 are all ROHS3 compliant, indicating compliance with Restriction of Hazardous Substances regulations. This ensures regulatory equivalence across all three part numbers.

Q: What is the moisture sensitivity level (MSL) for these components?

A: All three parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. These components do not require special moisture-controlled storage or handling procedures and can be stored under standard industrial conditions.

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