STTH1302CG-TR Equivalent & Substitute Parts

Part Overview

The STTH1302CG-TR is a diode array rectifier manufactured by STMicroelectronics, configured as a 1 Pair Common Cathode with 200 V reverse voltage rating and 6.5 A average rectified current per diode. The device is housed in a TO-263-3 D2PAK surface mount package. This part is classified as obsolete, necessitating identification of equivalent and substitute components that maintain functional compatibility while offering active product status and continued availability.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Voltage - DC Reverse (Vr) (Max)	200 V
Current - Average Rectified (Io) (per Diode)	6.5 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 6.5 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	25 ns
Operating Temperature - Junction (Max)	175°C
Mounting Type	Surface Mount
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the STTH1302CG-TR is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Diode Configuration: 1 Pair Common Cathode (electrical topology must match)
Voltage - DC Reverse (Vr) (Max): 200 V (minimum requirement; higher ratings are acceptable)
Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB (physical footprint compatibility)
Mounting Type: Surface Mount (assembly process compatibility)

Performance Parameters:

Current - Average Rectified (Io) (per Diode): Substitute parts must equal or exceed 6.5 A
Voltage - Forward (Vf) (Max): Lower forward voltage indicates improved efficiency
Reverse Recovery Time (trr): Faster recovery time indicates superior switching performance
Operating Temperature - Junction: Must support maximum 175°C operation

Compliance Requirements:

RoHS Status: ROHS3 Compliant (regulatory requirement)
Moisture Sensitivity Level (MSL): 1 (Unlimited) preferred for handling compatibility

Substitute parts are grouped by current rating capability, with higher current ratings providing design margin for thermal and electrical stress conditions.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Current - Io (per Diode)	Voltage - Vf (Max)	Reverse Recovery Time (trr)	Operating Temp - Junction (Max)	Product Status	Technology
STTH1302CG-TR	STMicroelectronics	6.5 A	1.1 V @ 6.5 A	25 ns	175°C	Obsolete	Standard
SBR10200CTB	Diodes Incorporated	5 A	920 mV @ 5 A	20 ns	175°C	Active	Super Barrier
SBR10200CTB-13-G	Diodes Incorporated	5 A	920 mV @ 5 A	20 ns	175°C	Active	Super Barrier
SBR20A200CTB	Diodes Incorporated	10 A	960 mV @ 20 A	30 ns	175°C	Active	Super Barrier
SBR20A200CTB-13	Diodes Incorporated	10 A	960 mV @ 20 A	30 ns	175°C	Active	Super Barrier
VS-MURB1620CTLHM3	Vishay General Semiconductor - Diodes Division	8 A	975 mV @ 8 A	20 ns	175°C	Active	Standard
VS-MURB1620CTRHM3	Vishay General Semiconductor - Diodes Division	8 A	975 mV @ 8 A	20 ns	175°C	Active	Standard
FFB20UP20DN-F085	onsemi	10 A	1.15 V @ 10 A	40 ns	175°C	Active	Standard
DPG30C200PC-TRL	IXYS	15 A	1.26 V @ 15 A	35 ns	175°C	Active	Standard

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement):

SBR20A200CTB and SBR20A200CTB-13 (Diodes Incorporated) are the preferred substitutes. Both devices provide 10 A current rating, exceeding the STTH1302CG-TR specification of 6.5 A, and maintain identical 200 V reverse voltage rating and TO-263-3 D2PAK package compatibility. These parts are active products with ROHS3 compliance and MSL 1 rating. The Super Barrier technology delivers lower forward voltage (960 mV @ 20 A) compared to the original part, improving thermal efficiency.

Secondary Substitutes (Higher Current Capability):

VS-MURB1620CTLHM3 and VS-MURB1620CTRHM3 (Vishay) provide 8 A current rating with 975 mV forward voltage and 20 ns reverse recovery time. These devices include AEC-Q101 automotive qualification and are suitable for applications requiring enhanced reliability margins. The FRED Pt® series technology ensures fast recovery characteristics.

FFB20UP20DN-F085 (onsemi) offers 10 A current rating with AEC-Q101 automotive qualification. This part is suitable for automotive-grade applications requiring enhanced environmental and reliability specifications.

DPG30C200PC-TRL (IXYS) provides the highest current rating at 15 A with HiPerFRED™ series technology. This substitute is appropriate for applications requiring maximum thermal margin and current capacity.

Substitutes with Current Derating Consideration:

SBR10200CTB and SBR10200CTB-13-G (Diodes Incorporated) provide 5 A current rating, which is below the STTH1302CG-TR specification of 6.5 A. These substitutes are suitable only for applications where the actual operating current does not exceed 5 A, or where thermal design accommodates the reduced current margin.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and surface mount TO-263-3 D2PAK package compatibility with the original component.

Frequently Asked Questions (FAQ)

Q: Can SBR10200CTB replace STTH1302CG-TR in all applications?

A: SBR10200CTB is rated for 5 A average rectified current, which is below the STTH1302CG-TR specification of 6.5 A. This substitute is compatible only with applications where actual operating current does not exceed 5 A. For applications requiring the full 6.5 A capability, SBR20A200CTB or higher-rated alternatives are required.

Q: What is the difference between SBR20A200CTB and SBR20A200CTB-13?

A: Both parts are electrically and functionally identical. The primary difference is packaging: SBR20A200CTB is supplied in Tube packaging, while SBR20A200CTB-13 is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and volume handling procedures.

Q: Are all substitute parts compatible with the original TO-263-3 D2PAK footprint?

A: Yes. All listed substitute parts use the TO-263-3, D2PAK (2 Leads + Tab), TO-263AB package specification, ensuring direct physical and electrical compatibility with the original STTH1302CG-TR PCB layout and assembly process.

Q: Why do some substitutes have higher forward voltage than the original part?

A: Forward voltage variation reflects differences in semiconductor technology and current rating. DPG30C200PC-TRL (1.26 V @ 15 A) and FFB20UP20DN-F085 (1.15 V @ 10 A) exhibit higher forward voltage due to their higher current ratings and different technology platforms. Lower forward voltage devices (SBR series at 920-960 mV) utilize Super Barrier technology optimized for lower conduction losses.

Q: Which substitute offers the best thermal performance?

A: SBR10200CTB and SBR10200CTB-13-G deliver the lowest forward voltage at 920 mV @ 5 A, resulting in the lowest conduction losses and heat generation. However, this advantage applies only within their 5 A current rating. For applications requiring higher current capacity, SBR20A200CTB (960 mV @ 20 A) provides the best thermal efficiency among 10 A rated devices.

Q: Are automotive-qualified substitutes available?

A: Yes. FFB20UP20DN-F085 (onsemi) and VS-MURB1620CTLHM3/VS-MURB1620CTRHM3 (Vishay) both carry AEC-Q101 automotive qualification. These parts are suitable for automotive and industrial applications requiring enhanced reliability and environmental stress screening.

Q: What is the significance of reverse recovery time differences?

A: Reverse recovery time (trr) indicates switching speed. Faster recovery (20 ns in SBR series) reduces switching losses and electromagnetic interference compared to slower recovery (40 ns in FFB20UP20DN-F085). Selection depends on circuit switching frequency and EMI requirements.

Q: Can DPG30C200PC-TRL be used as a direct replacement?

A: DPG30C200PC-TRL is electrically compatible and maintains the same 200 V reverse voltage and TO-263-3 D2PAK package. The 15 A current rating provides substantial design margin above the 6.5 A requirement. However, the higher forward voltage (1.26 V @ 15 A) results in increased conduction losses compared to the original part. This substitute is appropriate for applications where maximum current capacity and thermal margin are prioritized over efficiency.

Q: What compliance certifications apply to all substitute parts?

A: All listed substitute parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts, indicating no special moisture handling requirements during storage or assembly.

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