US5DC-HF Equivalent & Substitute Parts

Part Overview

The US5DC-HF is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 200 V DC reverse voltage and 5 A average rectified current in a surface mount DO-214AB (SMC) package. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, supply chain alternatives, or inventory management in applications where the primary part is unavailable or when alternative sourcing is necessary.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	5	A
Voltage - Forward (Vf) (Max) @ If	1	V @ 5 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the US5DC-HF are identified based on strict equivalence of the following critical parameters:

Voltage Rating: DC reverse voltage of 200 V maximum
Current Rating: Average rectified current of 5 A
Forward Voltage: Maximum 1 V at 5 A forward current
Speed Classification: Fast recovery diode with recovery time ≤ 500 ns for currents > 200 mA
Package Type: DO-214AB (SMC) surface mount package
Operating Temperature Range: -55°C to 150°C junction temperature
Compliance: RoHS3 compliant status

The ES5DC manufactured by MDD meets all these critical parameters and is classified as a parametric equivalent. Substitution is valid when these electrical and mechanical specifications are required for the application circuit.

Parameter Comparison

Parameter	US5DC-HF (Comchip)	ES5DC (MDD)	Match Status
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	Equivalent
Current - Average Rectified (Io)	5 A	5 A	Equivalent
Voltage - Forward (Vf) (Max) @ If	1 V @ 5 A	1 V @ 5 A	Equivalent
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Equivalent
Reverse Recovery Time (trr)	50 ns	35 ns	ES5DC Superior
Current - Reverse Leakage @ Vr	5 µA @ 200 V	10 µA @ 200 V	US5DC-HF Superior
Package / Case	DO-214AB, SMC	DO-214AB, SMC	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent

Engineering Selection Recommendations

US5DC-HF (Comchip Technology): Select this part when the primary design requirement specifies Comchip Technology sourcing, when lower reverse leakage current (5 µA) is critical for the application, or when existing inventory and supply chain relationships favor this manufacturer. Product status is Active with RoHS3 compliance and MSL 1 rating.

ES5DC (MDD): Select this part as a parametric equivalent when supply chain flexibility is required, when faster reverse recovery time (35 ns versus 50 ns) provides circuit performance benefits, or when MDD inventory availability is advantageous. Product status is Active with RoHS3 compliance and REACH Unaffected status. The ES5DC is suitable for direct substitution in applications where the electrical specifications of the US5DC-HF are required.

Both parts are Active status components with equivalent core electrical ratings and identical package specifications, making them interchangeable at the circuit design level when the specified parameters are met.

Frequently Asked Questions (FAQ)

Q: Can ES5DC replace US5DC-HF in my circuit?

A: Yes. The ES5DC meets all critical electrical parameters: 200 V reverse voltage rating, 5 A average rectified current, 1 V forward voltage at 5 A, fast recovery speed classification, and identical DO-214AB surface mount package. Both components operate across -55°C to 150°C and are RoHS3 compliant.

Q: What are the differences between these parts?

A: The ES5DC has a faster reverse recovery time (35 ns versus 50 ns) and slightly higher reverse leakage current (10 µA versus 5 µA at 200 V). These differences are within the fast recovery diode classification and do not affect substitution validity for standard rectification applications.

Q: Are the packages identical?

A: Yes. Both US5DC-HF and ES5DC use the DO-214AB (SMC) surface mount package. PCB footprints and reflow soldering profiles are identical.

Q: What compliance certifications apply to both parts?

A: Both parts are RoHS3 compliant. The ES5DC additionally carries REACH Unaffected status. Both have MSL 1 (Unlimited) moisture sensitivity levels.

Q: Can I use these parts interchangeably in production?

A: Yes, provided your circuit design specifies the electrical parameters met by both parts: 200 V reverse voltage, 5 A current rating, fast recovery speed, and DO-214AB package. No circuit redesign is required for substitution.

Q: Which part should I select for new designs?

A: Selection depends on supply chain strategy and performance requirements. The ES5DC offers faster recovery time and higher inventory availability (82,084 pcs versus 1,046 pcs). The US5DC-HF offers lower reverse leakage current. Both are Active status products suitable for new designs.

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