DHG40C600HB Equivalent & Substitute Parts

Part Overview

The DHG40C600HB is a diode array rectifier manufactured by IXYS, configured as a 1 Pair Common Cathode design rated for 600 V DC reverse voltage and 20 A average rectified current per diode. The component is housed in a TO-247-3 through-hole package and is classified as Active product status. This part is ROHS3 compliant and carries unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified based on matching electrical specifications: 600 V reverse voltage rating, common cathode configuration, fast recovery technology, and compatible through-hole TO-247-3 packaging. Alternatives are available from manufacturers including Microchip Technology and STMicroelectronics, offering variations in current ratings and forward voltage characteristics.

Key Parameters

Parameter	DHG40C600HB
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io) (per Diode)	20 A
Diode Configuration	1 Pair Common Cathode
Technology	Standard
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case	TO-247-3
Mounting Type	Through Hole
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the DHG40C600HB are grouped based on the following criteria:

Primary Matching Parameters:

Voltage - DC Reverse (Vr): 600 V (all substitutes match)
Diode Configuration: 1 Pair Common Cathode (all substitutes match)
Package / Case: TO-247-3 (all substitutes match)
Mounting Type: Through Hole (all substitutes match)
Technology: Standard, Fast Recovery (all substitutes match)

Secondary Variation Parameters:

Current - Average Rectified (Io): Ranges from 15 A to 40 A across substitute options
Voltage - Forward (Vf): Ranges from 1.55 V to 2.9 V depending on manufacturer and current rating
Reverse Recovery Time (trr): Ranges from 19 ns to 90 ns
Operating Temperature - Junction (Max): 150°C (main part) to 175°C (substitutes)

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and Active product status. Substitution is valid when the application current requirement does not exceed the rated Io of the selected alternative.

Parameter Comparison

Parameter	DHG40C600HB (IXYS)	APT15DQ60BCTG (Microchip)	APT30DQ60BCTG (Microchip)	APT40DQ60BCTG (Microchip)	STTH30R06CW (STMicro)	STTH30L06CW (STMicro)	STTH60L06CW (STMicro)
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io) (per Diode)	20 A	15 A	30 A	40 A	15 A	20 A	40 A
Voltage - Forward (Vf) (Max) @ If	2.31 V @ 20 A	2.4 V @ 15 A	2.4 V @ 30 A	2.4 V @ 40 A	2.9 V @ 15 A	1.55 V @ 15 A	1.55 V @ 30 A
Reverse Recovery Time (trr)	35 ns	19 ns	30 ns	25 ns	50 ns	85 ns	90 ns
Current - Reverse Leakage @ Vr	30 µA @ 600 V	25 µA @ 600 V	25 µA @ 600 V	25 µA @ 600 V	60 µA @ 600 V	15 µA @ 600 V	25 µA @ 600 V
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Package / Case	TO-247-3	TO-247-3	TO-247-3	TO-247-3	TO-247-3	TO-247-3	TO-247-3
Operating Temperature - Junction (Max)	150°C	175°C	175°C	175°C	175°C	175°C	175°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Replacement (Matched Current Rating):

STTH30L06CW (STMicroelectronics) is the closest functional equivalent to DHG40C600HB, matching the 20 A current rating and 600 V reverse voltage specification. Both components share identical TO-247-3 packaging, common cathode configuration, and ROHS3 compliance. The STTH30L06CW offers extended maximum junction temperature (175°C vs. 150°C) and lower reverse leakage current (15 µA vs. 30 µA at 600 V).

Higher Current Capacity Substitutes:

APT30DQ60BCTG and APT40DQ60BCTG (Microchip Technology) and STTH60L06CW (STMicroelectronics) provide 30 A and 40 A ratings respectively. These components are suitable for applications where the DHG40C600HB current capacity is insufficient. All maintain 600 V reverse voltage, TO-247-3 packaging, and ROHS3 compliance. Microchip variants offer maximum junction temperature of 175°C.

Lower Current Capacity Substitutes:

APT15DQ60BCTG and STTH30R06CW provide 15 A ratings. These are suitable only for applications where the circuit current requirement does not exceed 15 A. Both maintain 600 V reverse voltage and TO-247-3 packaging with ROHS3 compliance.

Compliance and Regulatory Status:

All substitute parts carry Active product status, ROHS3 compliance, MSL 1 (Unlimited), REACH Unaffected designation, and EAR99 ECCN classification, matching the regulatory profile of the DHG40C600HB.

Frequently Asked Questions (FAQ)

Q: Can APT15DQ60BCTG replace DHG40C600HB in all applications?

A: APT15DQ60BCTG is a direct substitute only for applications where the circuit current does not exceed 15 A. The DHG40C600HB is rated for 20 A average rectified current per diode. If the application requires 20 A or higher current capacity, APT15DQ60BCTG will not provide adequate current handling capability.

Q: What is the difference between STTH30L06CW and STTH30R06CW?

A: Both are STMicroelectronics products in TO-247-3 packaging with 600 V reverse voltage rating. STTH30L06CW is rated for 20 A current, matching the DHG40C600HB specification. STTH30R06CW is rated for 15 A current. The forward voltage characteristics differ: STTH30L06CW exhibits 1.55 V @ 15 A, while STTH30R06CW exhibits 2.9 V @ 15 A.

Q: Are all substitute parts compatible with the same PCB footprint as DHG40C600HB?

A: Yes. All substitute parts listed use the TO-247-3 package with through-hole mounting, which maintains identical pin configuration and PCB footprint compatibility with DHG40C600HB.

Q: Which substitute offers the fastest reverse recovery time?

A: APT15DQ60BCTG offers the fastest reverse recovery time at 19 ns. APT40DQ60BCTG follows at 25 ns, and APT30DQ60BCTG at 30 ns. The DHG40C600HB has a reverse recovery time of 35 ns. STMicroelectronics variants exhibit longer recovery times: STTH30R06CW at 50 ns, STTH30L06CW at 85 ns, and STTH60L06CW at 90 ns.

Q: Can DHG40C600HB be replaced with a higher current-rated part like APT40DQ60BCTG?

A: Yes. APT40DQ60BCTG (40 A rating) is a valid substitute for DHG40C600HB (20 A rating) in applications where the circuit current does not exceed 20 A. The higher current rating provides additional design margin. All electrical parameters including 600 V reverse voltage, TO-247-3 packaging, and ROHS3 compliance are maintained.

Q: What is the operating temperature range difference between DHG40C600HB and substitute parts?

A: DHG40C600HB has a maximum junction temperature of 150°C. All Microchip Technology (APT series) and STMicroelectronics (STTH series) substitutes have a maximum junction temperature of 175°C, providing 25°C additional thermal headroom.

Q: Are all parts in this list ROHS3 compliant?

A: Yes. DHG40C600HB and all listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level and REACH Unaffected status.

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