Equivalent & Substitute Parts for 30CTH02S Diode Array

Part Overview

The Vishay 30CTH02S is a general-purpose diode array featuring a 1 Pair Common Cathode configuration rated for 200V DC reverse voltage and 15A average rectified current per diode. The device is packaged in a Surface Mount TO-263-3 (D2PAK) format with fast recovery characteristics. The 30CTH02S is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production requirements. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts offer comparable functionality within defined parameter tolerances.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	—
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io) (per Diode)	15	A
Voltage - Forward (Vf) (Max) @ If	1.05	V @ 15 A
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	10	µA @ 200 V
Operating Temperature - Junction	-65 to 175	°C
Mounting Type	Surface Mount	—
Package / Case	TO-263-3, D2PAK (2 Leads + Tab)	—
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—

Substitute Part Grouping Explanation

Substitution of the 30CTH02S diode array is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 200V
Diode Configuration: 1 Pair Common Cathode
Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type: Surface Mount
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Current Rating Tolerance: Substitute parts are grouped by average rectified current capacity. The primary part operates at 15A per diode. Substitutes with equal or greater current ratings (10A, 15A, 16A) are classified as direct equivalents or compatible alternatives. Parts with lower current ratings (5A) are classified as reduced-capacity substitutes suitable only for applications with lower current demands.

Technology Variants: Standard technology diodes (30CTH02S, STTH3002CG, STTH3002CG-TR) and Super Barrier technology diodes (SBR series) both meet the fast recovery speed requirement and are grouped as functionally equivalent within their respective technology classes.

Product Status Consideration: The 30CTH02S is obsolete. Active equivalent parts (VS-30CTH02S-M3, STTH3002CG-TR) provide direct replacement capability. Manufacturer-recommended alternatives (SBR20A200CTB-13, SBR20A200CTB, FFB20UP20DN-F085, SFS1604G) offer comparable performance with active product status.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io per Diode [A]	Vf (Max) [V]	trr [ns]	Ir @ Vr [µA]	Tj (Max) [°C]	Package	Product Status	RoHS
30CTH02S	Vishay	200	15	1.05 @ 15A	35	10 @ 200V	175	TO-263AB	Obsolete	Non-compliant
VS-30CTH02S-M3	Vishay	200	15	1.05 @ 15A	35	10 @ 200V	175	TO-263AB	Active	RoHS3 Compliant
STTH3002CG-TR	STMicroelectronics	200	15	1.05 @ 15A	22	20 @ 200V	175	TO-263AB	Active	RoHS3 Compliant
STTH3002CG	STMicroelectronics	200	15	1.05 @ 15A	22	20 @ 200V	175	TO-263AB	Active	RoHS3 Compliant
SBR20A200CTB-13	Diodes Incorporated	200	10	0.96 @ 20A	30	100 @ 200V	175	TO-263AB	Active	RoHS3 Compliant
SBR20A200CTB	Diodes Incorporated	200	10	0.96 @ 20A	30	100 @ 200V	175	TO-263AB	Active	RoHS3 Compliant
FFB20UP20DN-F085	onsemi	200	10	1.15 @ 10A	40	10 @ 200V	175	TO-263AB	Active	RoHS3 Compliant
SBR10200CTB-13-G	Diodes Incorporated	200	5	0.92 @ 5A	20	5 @ 200V	175	TO-263AB	Active	RoHS3 Compliant
SFS1604G	Taiwan Semiconductor Corporation	200	16	0.975 @ 8A	35	10 @ 200V	150	TO-263AB	Active	RoHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent (Identical Electrical and Mechanical Specifications):

VS-30CTH02S-M3 (Vishay) is the direct parametric equivalent to the obsolete 30CTH02S. This part maintains identical voltage, current, forward voltage, and reverse recovery time specifications. The primary distinction is product status (Active vs. Obsolete) and RoHS3 compliance. Packaging differs only in format (Tube vs. unspecified for original), with no impact on electrical performance or PCB assembly compatibility.

Primary Substitute (Matched Current Rating, Enhanced Performance):

STTH3002CG-TR and STTH3002CG (STMicroelectronics) provide equivalent 15A current rating and 200V voltage rating with identical forward voltage characteristics. These parts feature improved reverse recovery time (22ns vs. 35ns), resulting in reduced switching losses. Both are RoHS3 compliant and carry Active product status. The STTH3002CG-TR variant is supplied in Cut Tape packaging with significantly higher inventory availability (15,302 units).

Secondary Substitutes (Reduced Current Rating, Lower Forward Voltage):

SBR20A200CTB-13 and SBR20A200CTB (Diodes Incorporated) operate at 10A per diode with Super Barrier technology, delivering lower forward voltage (0.96V vs. 1.05V) and faster reverse recovery (30ns vs. 35ns). These parts are suitable for applications where the 15A rating is not fully utilized and where reduced power dissipation is beneficial. Both are RoHS3 compliant and Active.

Reduced-Capacity Substitute (5A Rating):

SBR10200CTB-13-G (Diodes Incorporated) is rated for 5A per diode and incorporates Super Barrier technology with the lowest forward voltage (0.92V) and fastest reverse recovery time (20ns) among all listed substitutes. This part is appropriate only for applications with maximum current requirements not exceeding 5A per diode.

Higher Current Capacity Alternative:

SFS1604G (Taiwan Semiconductor Corporation) provides 16A per diode rating, exceeding the original 15A specification. This part maintains 200V voltage rating and 35ns reverse recovery time. Operating temperature maximum is reduced to 150°C (vs. 175°C). This part is suitable for applications requiring marginal current headroom above 15A.

Automotive-Grade Alternative:

FFB20UP20DN-F085 (onsemi) is rated for 10A per diode and carries AEC-Q101 automotive qualification. This part is appropriate for automotive applications requiring qualified components, though it operates at reduced current capacity compared to the original 30CTH02S.

All recommended substitutes maintain the TO-263-3 (D2PAK) package format, Surface Mount mounting type, and fast recovery speed classification. All active alternatives are RoHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can VS-30CTH02S-M3 be used as a direct replacement for 30CTH02S?

A: Yes. VS-30CTH02S-M3 is the parametric equivalent with identical electrical specifications (200V, 15A, 1.05V forward voltage, 35ns recovery time). The only differences are product status (Active vs. Obsolete) and packaging format (Tube). Electrical performance and PCB assembly compatibility are identical.

Q: What is the primary difference between STTH3002CG-TR and the original 30CTH02S?

A: STTH3002CG-TR maintains the same voltage (200V), current (15A), and forward voltage (1.05V) ratings. The key improvement is reverse recovery time: 22ns versus 35ns in the original part. This faster recovery reduces switching losses and heat generation. Both parts use identical TO-263AB packaging.

Q: Can SBR20A200CTB-13 replace the 30CTH02S in all applications?

A: SBR20A200CTB-13 is suitable for applications where the average rectified current does not exceed 10A per diode. The original 30CTH02S is rated for 15A. If your application requires the full 15A capacity, this substitute is not appropriate. If your application operates below 10A, this part offers superior performance with lower forward voltage (0.96V vs. 1.05V) and faster recovery (30ns vs. 35ns).

Q: Why does SFS1604G have a lower maximum junction temperature (150°C vs. 175°C)?

A: SFS1604G is specified with a 150°C maximum junction temperature, whereas the original 30CTH02S and most other substitutes are rated to 175°C. This difference reflects the manufacturer's thermal design specifications. For applications operating near the upper temperature limit, this part may not be suitable. For typical operating conditions below 150°C, this limitation is not restrictive.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All active substitute parts listed (VS-30CTH02S-M3, STTH3002CG-TR, STTH3002CG, SBR20A200CTB-13, SBR20A200CTB, FFB20UP20DN-F085, SBR10200CTB-13-G, SFS1604G) are RoHS3 compliant. The original 30CTH02S is RoHS non-compliant, making substitution necessary for RoHS-regulated applications.

Q: What is the difference between Standard and Super Barrier diode technology in these parts?

A: Standard technology diodes (30CTH02S, STTH3002CG, STTH3002CG-TR, FFB20UP20DN-F085, SFS1604G) and Super Barrier technology diodes (SBR series) both meet the fast recovery speed requirement. Super Barrier technology typically delivers lower forward voltage and faster reverse recovery, reducing power dissipation. Both technology types are electrically compatible within the specified parameters.

Q: Can I use STTH3002CG instead of STTH3002CG-TR?

A: Yes. Both parts are electrically identical with the same specifications. The difference is packaging format: STTH3002CG is supplied in Tube packaging, while STTH3002CG-TR is supplied in Cut Tape. Selection depends on assembly process requirements and inventory management. STTH3002CG-TR has significantly higher inventory availability (15,302 units vs. 1,220 units).

Q: Is FFB20UP20DN-F085 suitable for non-automotive applications?

A: Yes. FFB20UP20DN-F085 is an active, RoHS3-compliant part suitable for general-purpose applications. The AEC-Q101 automotive qualification indicates it meets automotive reliability standards, but the part can be used in non-automotive designs. The 10A current rating and 200V voltage rating make it appropriate for applications not requiring the full 15A capacity of the original 30CTH02S.

Q: What packaging formats are available for these substitute parts?

A: All substitute parts use the TO-263-3 (D2PAK) surface mount package, maintaining mechanical compatibility with the original 30CTH02S. Packaging variants differ in distribution format: Tube, Tape & Reel (TR), and Cut Tape (CT). These format differences do not affect electrical performance or PCB assembly compatibility.

Q: Should I select a substitute with higher current rating (SFS1604G at 16A) for safety margin?

A: SFS1604G provides 16A rating, exceeding the original 15A specification. However, the maximum junction temperature is reduced to 150°C. Selection should be based on actual application current requirements and thermal operating conditions, not on obtaining marginal current headroom. If your application requires 15A capacity and operates below 150°C, SFS1604G is suitable. If your application requires operation to 175°C, the STTH3002CG series is more appropriate.

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