S5KC-13 Equivalent & Substitute Parts

Part Overview

The S5KC-13 is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 800 V DC reverse voltage and 5 A average rectified current in a surface mount SMC (DO-214AB) package. This part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	800 V
Current - Average Rectified (Io)	5 A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 5 A
Speed	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	10 µA @ 800 V
Capacitance @ Vr, F	40pF @ 4V, 1MHz
Mounting Type	Surface Mount
Package / Case	DO-214AB, SMC
Operating Temperature - Junction	-65°C ~ 150°C
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitute parts for the S5KC-13 are classified into two categories based on electrical parameter alignment:

Direct Electrical Equivalents (800 V, 5 A): Parts meeting all primary electrical specifications—800 V reverse voltage, 5 A average rectified current, 1.15 V forward voltage at 5 A, and standard recovery speed characteristics. These parts maintain identical functional performance within the original design envelope.

Higher-Rated Alternatives (1000 V or 6 A): Parts exceeding the original voltage or current ratings while maintaining surface mount SMC packaging and standard recovery characteristics. These parts provide enhanced performance margins and are electrically compatible in applications where the original specifications are met or exceeded.

Key Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 800 V minimum
Current - Average Rectified (Io): 5 A minimum
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
Speed: Standard Recovery >500ns, > 200mA (Io)

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf @ If	Package	Product Status	RoHS Status
S5KC-13	Diodes Incorporated	800 V	5 A	1.15 V @ 5 A	DO-214AB, SMC	Discontinued at DiGi Electronics	RoHS non-compliant
S5KC-13-F	Diodes Incorporated	800 V	5 A	1.15 V @ 5 A	DO-214AB, SMC	Active	ROHS3 Compliant
S5K-E3/57T	Vishay General Semiconductor - Diodes Division	800 V	5 A	1.15 V @ 5 A	DO-214AB, SMC	Active	ROHS3 Compliant
S5K-E3/9AT	Vishay General Semiconductor - Diodes Division	800 V	5 A	1.15 V @ 5 A	DO-214AB, SMC	Active	ROHS3 Compliant
S5KL-TP	Micro Commercial Co	800 V	5 A	1.2 V @ 5 A	DO-214AB, SMC	Active	ROHS3 Compliant
S5KC	SMC Diode Solutions	800 V	5 A	1.15 V @ 5 A	DO-214AB, SMC	Active	ROHS3 Compliant
SMLJ60S10-TP	Micro Commercial Co	1000 V	6 A	1 V @ 6 A	DO-214AB, SMC	Active	ROHS3 Compliant
STTH310S	STMicroelectronics	1000 V	3 A	1.7 V @ 3 A	DO-214AB, SMC	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: S5KC-13-F

The S5KC-13-F is the direct equivalent of the S5KC-13, manufactured by Diodes Incorporated with identical electrical specifications. This part is currently active in production with ROHS3 compliance, addressing the regulatory limitation of the original part. The S5KC-13-F is supplied in Tape & Reel packaging with 15,400 units in stock, providing immediate availability and supply chain continuity.

Secondary Recommendations: S5K-E3/57T and S5K-E3/9AT

Both Vishay General Semiconductor parts maintain the 800 V / 5 A electrical specification with identical forward voltage characteristics. These parts are ROHS3 compliant and active in production. S5K-E3/57T is supplied in Cut Tape & Digi-Reel packaging with 15,100 units in stock. S5K-E3/9AT is supplied in Tape & Reel packaging with 684 units in stock.

Alternative Equivalent: S5KC

The S5KC from SMC Diode Solutions provides identical electrical performance to the original S5KC-13 with ROHS3 compliance and active product status. This part is available in Tape & Reel packaging with 771 units in stock.

Higher-Rated Alternative: S5KL-TP

The S5KL-TP from Micro Commercial Co maintains the 800 V / 5 A core specification with a forward voltage of 1.2 V @ 5 A (0.05 V higher than the original). This part is ROHS3 compliant and active with 2,603 units in stock. The marginally higher forward voltage is within acceptable tolerance for most applications.

Enhanced Performance Alternative: SMLJ60S10-TP

The SMLJ60S10-TP from Micro Commercial Co provides 1000 V reverse voltage and 6 A average rectified current, exceeding the original S5KC-13 specifications. This part is suitable for applications requiring higher voltage or current margins. It is ROHS3 compliant and active with 12,900 units in stock.

Limited Compatibility: STTH310S

The STTH310S from STMicroelectronics provides 1000 V reverse voltage but is rated for only 3 A average rectified current, below the original 5 A specification. This part is not suitable as a direct substitute for the S5KC-13 in applications requiring the full 5 A current rating.

Frequently Asked Questions (FAQ)

Q: Can the S5KC-13-F be used as a direct replacement for the S5KC-13?

A: Yes. The S5KC-13-F is electrically identical to the S5KC-13 with 800 V reverse voltage, 5 A average rectified current, and 1.15 V forward voltage at 5 A. The primary difference is ROHS3 compliance and active production status. Both parts use the DO-214AB SMC package.

Q: What is the difference between the Vishay S5K-E3/57T and S5K-E3/9AT?

A: Both parts are electrically identical with 800 V / 5 A specifications and ROHS3 compliance. The difference is packaging format: S5K-E3/57T is supplied in Cut Tape & Digi-Reel, while S5K-E3/9AT is supplied in Tape & Reel. Selection depends on assembly line requirements.

Q: Is the S5KL-TP compatible with the S5KC-13?

A: Yes. The S5KL-TP maintains the 800 V / 5 A electrical specification. The forward voltage is 1.2 V @ 5 A compared to 1.15 V @ 5 A for the original, a difference of 0.05 V. This is within acceptable tolerance for standard rectifier applications.

Q: Can the SMLJ60S10-TP be used instead of the S5KC-13?

A: Yes, with design consideration. The SMLJ60S10-TP provides 1000 V reverse voltage and 6 A average rectified current, both exceeding the original 5 A / 800 V specification. The forward voltage is 1 V @ 6 A, lower than the original. This part is suitable for applications where higher voltage or current margins are beneficial.

Q: Why is the STTH310S not recommended as a substitute?

A: The STTH310S is rated for only 3 A average rectified current, below the original S5KC-13 specification of 5 A. While it provides 1000 V reverse voltage, the reduced current rating makes it unsuitable for applications requiring the full 5 A performance of the original part.

Q: What is the significance of RoHS compliance in selecting a substitute?

A: RoHS3 compliance is a regulatory requirement in many markets. The original S5KC-13 is RoHS non-compliant, while all recommended substitutes are ROHS3 compliant. For new designs or procurement in regulated markets, ROHS3 compliant parts are required.

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

A: Yes. All substitute parts listed use the DO-214AB SMC package with surface mount mounting type, ensuring mechanical and thermal compatibility with the original S5KC-13 footprint.

Q: What inventory levels are available for each substitute?

A: S5KC-13-F has 15,400 units in stock. S5K-E3/57T has 15,100 units. SMLJ60S10-TP has 12,900 units. STTH310S has 17,310 units. S5KL-TP has 2,603 units. S5KC has 771 units. Inventory levels support immediate procurement for production requirements.

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