STTH10BC065CT Equivalent & Substitute Parts

Part Overview

The STTH10BC065CT is a general-purpose diode array manufactured by STMicroelectronics, configured as a 1 Pair Common Cathode rectifier with 650 V reverse voltage rating and 5 A average rectified current per diode. The device is packaged in TO-220-3 through-hole format and classified as obsolete product status.

Due to obsolete product status, equivalent and substitute parts are necessary for ongoing design support, production continuity, and component sourcing. Substitute parts listed below maintain functional compatibility within specified electrical and mechanical parameters while offering active product availability from alternative manufacturers.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	—
Voltage - DC Reverse (Vr) (Max)	650	V
Current - Average Rectified (Io) (per Diode)	5	A
Voltage - Forward (Vf) (Max) @ If	3.2 @ 5	V @ A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	70	ns
Current - Reverse Leakage @ Vr	2.5 @ 650	µA @ V
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution logic for the STTH10BC065CT is based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Diode Configuration: 1 Pair Common Cathode (mandatory match)
Mounting Type: Through Hole (mandatory match)
Package / Case: TO-220-3 (mandatory match)
Voltage - DC Reverse (Vr) (Max): Minimum 650 V or lower voltage rating acceptable for applications not requiring full 650 V rating
Current - Average Rectified (Io) (per Diode): Minimum 5 A or higher current rating acceptable
Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (mandatory match)
Technology: Standard or Schottky (both acceptable for general-purpose rectification)

Acceptable Substitution Ranges:

Reverse voltage may be lower than 650 V (600 V acceptable for applications with reduced voltage requirements)
Average rectified current may be higher than 5 A (provides design margin)
Forward voltage and reverse recovery time variations are acceptable within fast recovery classification
Reverse leakage current variations are acceptable within specified voltage ratings

Substitute parts are grouped by manufacturer and technology type while maintaining all mandatory compatibility parameters.

Parameter Comparison

Parameter	STTH10BC065CT (Main)	DHG10C600PB	DSEC16-06A	LXA08T600C	LXA12T600C	LXA16T600C	MUR1660CTG	MURH860CTG
Manufacturer	STMicroelectronics	IXYS	IXYS	Power Integrations	Power Integrations	Power Integrations	onsemi	onsemi
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	1 Pair Common Cathode
Voltage - DC Reverse (Vr) (Max)	650 V	600 V	600 V	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io) (per Diode)	5 A	5 A	10 A	4 A	6 A	8 A	8 A	4 A
Voltage - Forward (Vf) (Max) @ If	3.2 V @ 5 A	2.2 V @ 5 A	2.1 V @ 10 A	2.96 V @ 4 A	2.94 V @ 6 A	2.94 V @ 8 A	1.5 V @ 8 A	2.8 V @ 4 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	70 ns	35 ns	35 ns	18.5 ns	23 ns	21.5 ns	60 ns	35 ns
Current - Reverse Leakage @ Vr	2.5 µA @ 650 V	10 µA @ 600 V	60 µA @ 600 V	250 µA @ 600 V	250 µA @ 600 V	250 µA @ 600 V	10 µA @ 600 V	10 µA @ 600 V
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Technology	Standard	Standard	Standard	Schottky	Schottky	Schottky	Standard	Standard
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent (Minimum Voltage Requirement: 650 V):

No substitute parts maintain the full 650 V reverse voltage rating of the STTH10BC065CT. All listed substitutes operate at 600 V maximum reverse voltage. Selection of 600 V rated devices is appropriate only for applications where the circuit design does not require the full 650 V rating margin.

Recommended Substitutes by Application Profile:

Standard Technology, 5 A Current Rating: DHG10C600PB (IXYS) is the closest functional equivalent, maintaining 5 A average rectified current with 600 V reverse voltage rating, standard technology, and active product status. This device provides direct pin compatibility and similar electrical performance with improved reverse recovery time (35 ns vs. 70 ns).

Standard Technology, Higher Current Capability: MUR1660CTG (onsemi) provides 8 A average rectified current with 600 V reverse voltage rating and active product status. This device offers superior forward voltage performance (1.5 V @ 8 A) and is suitable for applications requiring higher current capacity with design margin.

MURH860CTG (onsemi) provides 4 A average rectified current with 600 V reverse voltage rating and active product status, suitable for applications with reduced current requirements.

Schottky Technology Options: LXA12T600C (Power Integrations) provides 6 A average rectified current with Schottky technology, offering faster reverse recovery time (23 ns) and active product status. Schottky technology exhibits higher reverse leakage current (250 µA @ 600 V) compared to standard technology.

LXA08T600C (Power Integrations) provides 4 A average rectified current with Schottky technology and faster reverse recovery (18.5 ns).

LXA16T600C (Power Integrations) provides 8 A average rectified current with Schottky technology and faster reverse recovery (21.5 ns).

Higher Current Capability: DSEC16-06A (IXYS) provides 10 A average rectified current with 600 V reverse voltage rating, standard technology, and extended operating temperature range (-55°C to 175°C). This device is suitable for applications requiring significantly higher current capacity.

Compliance and Availability: All substitute parts are ROHS3 compliant or RoHS compliant and REACH unaffected. All substitute parts maintain active product status, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can DHG10C600PB directly replace STTH10BC065CT?

A: DHG10C600PB maintains identical diode configuration (1 Pair Common Cathode), mounting type (Through Hole), package (TO-220-3), current rating (5 A), and fast recovery speed classification. The primary difference is reduced reverse voltage rating (600 V vs. 650 V). Direct replacement is acceptable for applications where circuit design does not require the full 650 V voltage margin. Pin compatibility is maintained.

Q: What is the difference between standard and Schottky technology substitutes?

A: Standard technology diodes (DHG10C600PB, DSEC16-06A, MUR1660CTG, MURH860CTG) exhibit lower reverse leakage current (10 µA typical) and higher forward voltage drop. Schottky technology diodes (LXA08T600C, LXA12T600C, LXA16T600C) exhibit faster reverse recovery time (18.5 to 23 ns) but higher reverse leakage current (250 µA). Both technologies maintain fast recovery speed classification and TO-220-3 package compatibility.

Q: Can I use a substitute with higher current rating than the original part?

A: Yes. Substitute parts with higher average rectified current ratings (DSEC16-06A at 10 A, MUR1660CTG at 8 A, LXA16T600C at 8 A) are acceptable replacements. Higher current rating provides design margin and does not compromise circuit function. Pin configuration and package remain identical.

Q: What is the impact of reduced reverse voltage rating (600 V vs. 650 V)?

A: The 50 V reduction in reverse voltage rating reduces the safety margin in the circuit. Substitution with 600 V rated devices is acceptable only if circuit design analysis confirms that peak reverse voltage does not exceed 600 V under all operating conditions, including transient overvoltage events.

Q: Are all substitute parts available in active product status?

A: Yes. All listed substitute parts maintain active product status, ensuring ongoing manufacturing, availability, and long-term supply chain support. The original STTH10BC065CT is classified as obsolete.

Q: Do substitute parts require PCB layout modifications?

A: No. All substitute parts maintain TO-220-3 through-hole package format and identical pin configuration. PCB layout and mounting hardware remain unchanged. Thermal management considerations may vary based on forward voltage and current rating differences.

Q: Which substitute offers the best reverse recovery time performance?

A: LXA08T600C offers the fastest reverse recovery time at 18.5 ns, followed by LXA16T600C at 21.5 ns and LXA12T600C at 23 ns. All three are Schottky technology devices. Standard technology substitutes range from 35 ns to 70 ns reverse recovery time.

Q: Are all substitutes RoHS compliant?

A: Yes. All substitute parts are either ROHS3 compliant or RoHS compliant and REACH unaffected, meeting environmental and regulatory requirements equivalent to the original STTH10BC065CT.

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