S3KBHR5G Equivalent & Substitute Parts

Part Overview

The S3KBHR5G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 800 V DC reverse voltage and 3 A average rectified current in a surface mount DO-214AA (SMB) package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design requirements and production needs. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts offer similar functionality with variations in current rating, recovery characteristics, or package format.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	800	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 3 A	V
Reverse Recovery Time (trr)	1.5	µs
Current - Reverse Leakage @ Vr	10	µA @ 800 V
Capacitance @ Vr, F	40	pF @ 4V, 1MHz
Operating Temperature - Junction	-55 to 150	°C
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitution of the S3KBHR5G is determined by the following critical parameters: reverse voltage rating (800 V), average rectified current capacity, forward voltage drop, recovery time characteristics, package format (DO-214AA SMB or compatible), and compliance certifications (RoHS3, AEC-Q101 for automotive applications).

Substitute parts are grouped into two categories:

Parametric Equivalents maintain all electrical specifications (800 V, 3 A, 1.15 V forward drop, 1.5 µs recovery time) and the DO-214AA SMB package, differing only in manufacturer, packaging format (Cut Tape, Tape & Reel), or product status (Active vs. Discontinued).

Similar Substitutes share the 800 V reverse voltage rating and DO-214AA SMB package but operate at reduced current ratings (1.5 A instead of 3 A), resulting in different forward voltage characteristics, recovery times, and reverse leakage specifications. These parts are suitable only for applications where the lower current rating is acceptable.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf @ If	trr	Ir @ Vr	Package	Status
S3KBHR5G	Taiwan Semiconductor	800 V	3 A	1.15 V @ 3 A	1.5 µs	10 µA @ 800 V	DO-214AA SMB	Discontinued
S3KB	Taiwan Semiconductor	800 V	3 A	1.15 V @ 3 A	1.5 µs	10 µA @ 800 V	DO-214AA SMB	Active
S3KBH	Taiwan Semiconductor	800 V	3 A	1.15 V @ 3 A	1.5 µs	10 µA @ 800 V	DO-214AA SMB	Active
S3KB-TP	Micro Commercial Co	800 V	3 A	1.15 V @ 3 A	1.5 µs	10 µA @ 800 V	DO-214AA SMB	Active
S2K-13-F	Diodes Incorporated	800 V	1.5 A	1.15 V @ 1.5 A	>500 ns	5 µA @ 800 V	DO-214AA SMB	Active
S2KA-13-F	Diodes Incorporated	800 V	1.5 A	1.15 V @ 1.5 A	>500 ns	5 µA @ 800 V	DO-214AC SMA	Active
RS2K-13-F	Diodes Incorporated	800 V	1.5 A	1.3 V @ 1.5 A	500 ns	5 µA @ 800 V	DO-214AA SMB	Active
RS2KA-13-F	Diodes Incorporated	800 V	1.5 A	1.3 V @ 1.5 A	500 ns	5 µA @ 800 V	DO-214AC SMA	Active

Engineering Selection Recommendations

Direct Replacement (Parametric Equivalents):

S3KB, S3KBH, and S3KB-TP are parametric equivalents of the S3KBHR5G, maintaining identical electrical performance across all specified parameters. S3KB and S3KBH are manufactured by Taiwan Semiconductor Corporation and carry Active product status with high inventory availability (75,300 and 7,146 units respectively). S3KBH maintains automotive-grade qualification and AEC-Q101 certification, matching the original part's compliance profile. S3KB-TP, manufactured by Micro Commercial Co, is available in Cut Tape packaging with 3,825 units in stock and maintains full electrical equivalence.

Current-Reduced Substitutes (1.5 A Rating):

S2K-13-F and S2KA-13-F (Diodes Incorporated) operate at 1.5 A average rectified current with identical forward voltage (1.15 V @ 1.5 A) and standard recovery characteristics. S2K-13-F maintains the DO-214AA SMB package with 30,200 units available. S2KA-13-F uses the DO-214AC SMA package with 77,100 units in stock. Both parts are RoHS3 compliant and suitable for applications where 1.5 A current capacity is sufficient.

RS2K-13-F and RS2KA-13-F (Diodes Incorporated) also operate at 1.5 A but feature fast recovery characteristics (500 ns) and higher forward voltage (1.3 V @ 1.5 A). RS2K-13-F uses DO-214AA SMB packaging (2,772 units available), while RS2KA-13-F uses DO-214AC SMA packaging (15,420 units available). These parts are suitable for applications requiring faster switching performance.

All substitute parts maintain 800 V reverse voltage rating, RoHS3 compliance, and MSL 1 moisture sensitivity classification.

Frequently Asked Questions (FAQ)

Q: Can S3KB be used as a direct replacement for S3KBHR5G?

A: Yes. S3KB is a parametric equivalent with identical electrical specifications: 800 V reverse voltage, 3 A average rectified current, 1.15 V forward voltage drop at 3 A, and 1.5 µs reverse recovery time. Both use DO-214AA SMB packaging. S3KB is Active status with higher inventory availability.

Q: What is the difference between S3KBH and S3KB?

A: Both are parametric equivalents with identical electrical specifications. S3KBH is supplied in Tape & Reel packaging and maintains automotive-grade qualification with AEC-Q101 certification. S3KB is supplied in Cut Tape and Digi-Reel formats. Selection depends on packaging requirements and automotive compliance needs.

Q: Can S2K-13-F replace S3KBHR5G in all applications?

A: S2K-13-F shares the 800 V reverse voltage rating and DO-214AA SMB package but operates at 1.5 A instead of 3 A. It is suitable only for applications where the lower current rating meets design requirements. Forward voltage and recovery characteristics are identical to the original part.

Q: What is the difference between S2K-13-F and RS2K-13-F?

A: Both operate at 1.5 A and 800 V, but differ in recovery speed and forward voltage. S2K-13-F has standard recovery (>500 ns) and 1.15 V forward voltage. RS2K-13-F has fast recovery (500 ns) and 1.3 V forward voltage. Selection depends on circuit switching speed requirements and acceptable voltage drop.

Q: Why does S2KA-13-F use a different package than S2K-13-F?

A: S2K-13-F uses DO-214AA (SMB) package, while S2KA-13-F uses DO-214AC (SMA) package. Both are surface mount formats with different footprints. Selection depends on PCB layout and available mounting space. Electrical specifications are identical.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (S3KB, S3KBH, S3KB-TP, S2K-13-F, S2KA-13-F, RS2K-13-F, RS2KA-13-F) are RoHS3 compliant and REACH unaffected.

Q: Does S3KB-TP have automotive qualification?

A: S3KB-TP specifications do not include automotive grade or AEC-Q101 qualification data. For automotive applications requiring AEC-Q101 certification, S3KBH is the appropriate selection.

Q: What is the inventory status of each substitute part?

A: S3KB has 75,300 units available. S3KBH has 7,146 units. S3KB-TP has 3,825 units. S2K-13-F has 30,200 units. S2KA-13-F has 77,100 units. RS2K-13-F has 2,772 units. RS2KA-13-F has 15,420 units. Inventory levels determine lead time and availability for production requirements.

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