DSA80C45HB Equivalent & Substitute Parts

Part Overview

The DSA80C45HB is an IXYS Schottky diode array configured as 1 pair common cathode, rated for 45 V DC reverse voltage and 40 A average rectified current per diode. This component is packaged in TO-247-3 through-hole configuration and is classified as Active product status with ROHS3 compliance. Substitute parts are identified based on matching diode configuration, voltage rating, package type, and technology classification to ensure functional equivalence in circuit applications.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	45 V
Current - Average Rectified (Io) (per Diode)	40 A
Voltage - Forward (Vf) (Max) @ If	780 mV @ 40 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case	TO-247-3
Mounting Type	Through Hole
Operating Temperature - Junction	-55°C ~ 175°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the DSA80C45HB are selected based on the following criteria:

Mandatory Matching Parameters:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 45 V
Package / Case: TO-247-3
Mounting Type: Through Hole
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Current Rating Consideration: Substitute parts are grouped by current capacity. The DSA80C45HB operates at 40 A per diode. Substitutes with lower current ratings (15 A, 20 A, 30 A) are listed for applications where full 40 A capacity is not required. Substitutes with equal or higher current ratings provide direct replacement capability.

Compliance Alignment: All substitute parts maintain ROHS3 compliance, MSL Level 1, and REACH Unaffected status, ensuring regulatory equivalence.

Parameter Comparison

Part Number	Manufacturer	Current (Io) per Diode	Vf (Max) @ If	Reverse Leakage @ 45V	Tj (Max)	Automotive Grade
DSA80C45HB	IXYS	40 A	780 mV @ 40 A	680 µA	175°C	No
STPS3045CW	STMicroelectronics	15 A	570 mV @ 15 A	200 µA	200°C	No
STPS30L45CW	STMicroelectronics	15 A	550 mV @ 15 A	400 µA	150°C	No
STPS4045CWY	STMicroelectronics	20 A	760 mV @ 20 A	200 µA	175°C	Yes (AEC-Q101)
STPS40L45CW	STMicroelectronics	20 A	530 mV @ 20 A	600 µA	150°C	No
STPS6045CW	STMicroelectronics	30 A	630 mV @ 30 A	500 µA	175°C	No
STPS60L45CW	STMicroelectronics	30 A	550 mV @ 30 A	1.5 mA	150°C	No
STPS61L45CW	STMicroelectronics	30 A	560 mV @ 30 A	1.5 mA	150°C	No

Engineering Selection Recommendations

Direct Replacement (40 A Equivalent): No substitute parts with 40 A current rating are provided in the substitute list. Applications requiring full 40 A capacity must retain the DSA80C45HB.

30 A Current Class (STPS6045CW, STPS60L45CW, STPS61L45CW): These parts are suitable for applications where current demand does not exceed 30 A per diode. STPS6045CW maintains the same maximum junction temperature (175°C) as the DSA80C45HB. STPS60L45CW and STPS61L45CW operate at 150°C maximum junction temperature, requiring thermal design verification for high-temperature environments.

20 A Current Class (STPS4045CWY, STPS40L45CW): STPS4045CWY is qualified to AEC-Q101 automotive standard and maintains -55°C to 175°C operating range, matching the DSA80C45HB temperature specification. STPS40L45CW operates at 150°C maximum junction temperature. Both are suitable for 20 A applications.

15 A Current Class (STPS3045CW, STPS30L45CW): These parts are suitable for applications with current requirements not exceeding 15 A per diode. STPS3045CW supports 200°C maximum junction temperature. STPS30L45CW operates at 150°C maximum junction temperature.

Compliance Status: All substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring regulatory and environmental equivalence with the main part.

Frequently Asked Questions (FAQ)

Q: Can STPS6045CW directly replace DSA80C45HB in all applications?

A: STPS6045CW shares the same 45 V voltage rating, TO-247-3 package, Schottky technology, and 1 pair common cathode configuration. However, its 30 A current rating is lower than the DSA80C45HB's 40 A rating. Direct replacement is valid only for applications where circuit current does not exceed 30 A per diode.

Q: What is the difference between STPS40L45CW and STPS4045CWY?

A: Both parts are rated for 20 A current and 45 V voltage in TO-247-3 package. STPS4045CWY includes AEC-Q101 automotive qualification and operates across -40°C to 175°C. STPS40L45CW operates at 150°C maximum junction temperature without automotive qualification. Forward voltage differs: STPS4045CWY is 760 mV @ 20 A, while STPS40L45CW is 530 mV @ 20 A.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts use TO-247-3 through-hole package, matching the DSA80C45HB package specification. Pin configuration and mounting footprint are identical.

Q: What determines whether a substitute part is acceptable for my application?

A: Substitution validity depends on three factors: (1) Circuit current requirement must not exceed the substitute part's rated current per diode, (2) Operating temperature range must fall within the substitute part's maximum junction temperature specification, (3) Voltage rating must equal or exceed the circuit's reverse voltage requirement (all substitutes are rated 45 V, matching the main part).

Q: Why do some substitute parts have lower forward voltage specifications?

A: Forward voltage (Vf) varies based on semiconductor manufacturing process and die design within the same voltage and current class. Lower Vf values indicate improved efficiency and reduced power dissipation. Selection between parts with different Vf ratings depends on thermal design requirements and efficiency targets.

Q: Is STPS3045CW suitable for high-temperature applications?

A: STPS3045CW supports 200°C maximum junction temperature, which exceeds the DSA80C45HB's 175°C specification. However, its 15 A current rating is significantly lower. It is suitable for high-temperature applications only if circuit current does not exceed 15 A per diode.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message