STTH5R06G Equivalent & Substitute Parts

Part Overview

The STTH5R06G is a general-purpose rectifier diode manufactured by STMicroelectronics, rated for 600 V DC reverse voltage and 5 A average rectified current in a surface-mount D2PAK package. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement continuity. Substitute parts must maintain functional compatibility within the electrical and mechanical constraints of the original application.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	5	A
Voltage - Forward (Vf) (Max) @ If	2.9 @ 5 A	V
Reverse Recovery Time (trr)	40	ns
Current - Reverse Leakage @ Vr	20 µA @ 600 V	µA
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	TO-263-3, D2PAK (2 Leads + Tab)	—
Operating Temperature - Junction (Max)	175	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the STTH5R06G are evaluated based on the following critical parameters:

Electrical Compatibility Criteria:

Voltage - DC Reverse (Vr) rating must equal or exceed 600 V
Current - Average Rectified (Io) rating must equal or exceed 5 A
Forward voltage (Vf) characteristics must be compatible with circuit operation
Reverse recovery time (trr) must support fast recovery classification

Mechanical Compatibility Criteria:

Package type must be TO-263-3 / D2PAK (2 Leads + Tab) for PCB footprint compatibility
Mounting type must be Surface Mount
Moisture Sensitivity Level must be MSL 1 or equivalent

Compliance Criteria:

RoHS3 compliance required for environmental standards
REACH unaffected status preferred for regulatory continuity

Substitute parts are grouped into two categories based on these parameters:

Category 1 - Voltage-Reduced Substitutes: Parts with lower maximum reverse voltage (500 V) but matching current rating and package type. These are suitable only when circuit design permits operation below 600 V.

Category 2 - Current-Enhanced Substitutes: Parts with higher current ratings (15 A) and matching voltage rating (600 V). These provide design margin and are suitable for direct replacement with enhanced performance capability.

Parameter Comparison

Parameter	STTH5R06G (Main)	BYC5B-600,118	VS-ETL1506STRLHM3
Manufacturer	STMicroelectronics	WeEn Semiconductors	Vishay General Semiconductor
Product Status	Obsolete	Active	Active
Voltage - DC Reverse (Vr) (Max)	600 V	500 V	600 V
Current - Average Rectified (Io)	5 A	5 A	15 A
Voltage - Forward (Vf) (Max) @ If	2.9 V @ 5 A	2.9 V @ 5 A	1.07 V @ 15 A
Reverse Recovery Time (trr)	40 ns	50 ns	210 ns
Current - Reverse Leakage @ Vr	20 µA @ 600 V	100 µA @ 600 V	15 µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK
Operating Temperature - Junction (Max)	175°C	150°C	175°C
RoHS Status	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Automotive Grade	—	—	Yes (AEC-Q101)

Engineering Selection Recommendations

BYC5B-600,118 (WeEn Semiconductors): This substitute is active in production and maintains identical forward voltage characteristics at the 5 A rating. The 500 V maximum reverse voltage represents a 100 V reduction from the original specification. Selection of this part is appropriate only when circuit design analysis confirms that the application does not require the full 600 V rating. The maximum junction temperature of 150°C is 25°C lower than the original part, requiring thermal design verification. RoHS compliance is confirmed.

VS-ETL1506STRLHM3 (Vishay General Semiconductor): This substitute provides 600 V reverse voltage matching and 15 A current rating, exceeding the original 5 A specification. The part is active in production with ROHS3 compliance and AEC-Q101 automotive qualification. The reverse recovery time of 210 ns exceeds the original 40 ns specification but remains within the fast recovery classification. The lower forward voltage (1.07 V @ 15 A) reflects the higher current rating. This part is suitable for direct replacement with enhanced current margin and is qualified for automotive applications.

Both substitutes maintain D2PAK surface-mount packaging and MSL 1 moisture sensitivity rating, ensuring PCB compatibility and handling equivalence.

Frequently Asked Questions (FAQ)

Q: Can BYC5B-600,118 be used as a direct replacement for STTH5R06G?

A: BYC5B-600,118 is mechanically and functionally compatible at the 5 A current level with identical forward voltage characteristics. However, the 500 V maximum reverse voltage is 100 V lower than the original 600 V rating. Direct replacement is permissible only when circuit analysis confirms that the application voltage stress does not exceed 500 V under any operating condition, including transient overvoltage events.

Q: What are the advantages of VS-ETL1506STRLHM3 over the original STTH5R06G?

A: VS-ETL1506STRLHM3 maintains the full 600 V reverse voltage rating and provides a 15 A current capacity compared to the original 5 A rating. This provides a 3× current margin, reducing thermal stress and extending component life. The part carries AEC-Q101 automotive qualification and ROHS3 compliance. The trade-off is a longer reverse recovery time (210 ns versus 40 ns), which may affect high-frequency switching performance.

Q: Are all substitute parts available in the same D2PAK package?

A: Yes. Both substitute parts use the TO-263-3 D2PAK (2 Leads + Tab) package, ensuring identical PCB footprint and thermal interface compatibility with the original STTH5R06G.

Q: What is the impact of the 150°C maximum junction temperature on BYC5B-600,118?

A: The BYC5B-600,118 has a 25°C lower maximum junction temperature (150°C) compared to the original part (175°C). In applications where the original part operates near its 175°C limit, thermal design must be re-evaluated to ensure the substitute part remains within its 150°C maximum rating under worst-case conditions.

Q: Does the higher reverse recovery time of VS-ETL1506STRLHM3 affect circuit performance?

A: The reverse recovery time of 210 ns for VS-ETL1506STRLHM3 is longer than the original 40 ns but remains within the fast recovery classification (≤ 500 ns). In low-frequency rectification applications, this difference is negligible. In high-frequency switching circuits, the longer recovery time may increase switching losses and require circuit simulation to confirm acceptable performance.

Q: Are both substitute parts RoHS compliant?

A: Yes. BYC5B-600,118 is RoHS compliant, and VS-ETL1506STRLHM3 is ROHS3 compliant. Both meet environmental regulatory requirements for lead-free manufacturing and hazardous substance restrictions.

Q: What is the difference in reverse leakage current between the parts?

A: The original STTH5R06G has 20 µA reverse leakage at 600 V. BYC5B-600,118 has 100 µA at 600 V (5× higher), while VS-ETL1506STRLHM3 has 15 µA at 600 V (lower). Higher reverse leakage increases standby power dissipation and may affect precision analog circuits. VS-ETL1506STRLHM3 offers superior leakage performance.

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