SK86CHR7G Schottky Diode Equivalent & Substitute Parts

Part Overview

The SK86CHR7G is a 60V, 8A Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation in DO-214AB (SMC) surface mount package. This component is classified as discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production continuity. The part carries automotive-grade qualification (AEC-Q101) and ROHS3 compliance, indicating suitability for demanding applications requiring high reliability standards.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	60	V
Current - Average Rectified (Io)	8	A
Voltage - Forward (Vf) Maximum @ If	750 mV @ 8 A	mV @ A
Current - Reverse Leakage @ Vr	500	µA @ 60 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	DO-214AB, SMC	—
Operating Temperature - Junction	-55°C to 150°C	°C
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the SK86CHR7G is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain a minimum DC reverse voltage (Vr) of 60V to ensure equivalent reverse bias protection and circuit safety margins.

Current Rating: The SK86CHR7G carries an 8A average rectified current specification. Substitute parts with lower current ratings (3A or 5A) operate within reduced current envelopes and are suitable only for applications where the actual circuit current demand does not exceed the substitute part's rating.

Forward Voltage (Vf): Forward voltage characteristics at rated current determine power dissipation and thermal performance. Substitute parts with Vf values of 700 mV at their respective current ratings represent acceptable alternatives within typical Schottky diode performance bands.

Package Compatibility: The original SK86CHR7G uses DO-214AB (SMC) package. Substitute parts in alternative packages (SMA, SMB) require PCB layout modification and are not pin-compatible without redesign.

Speed Classification: All substitute parts maintain fast recovery characteristics (≤ 500ns, > 200mA), ensuring compatibility with high-frequency switching applications.

Reverse Leakage Current: Substitute parts with reverse leakage specifications of 100 µA to 500 µA @ 60V represent acceptable performance variation within Schottky diode technology tolerances.

Compliance & Qualification: Automotive-grade parts with AEC-Q101 qualification provide equivalent reliability assurance for mission-critical applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) V	Io A	Vf (Max) mV @ If	Ir @ Vr µA	Package	Product Status	AEC-Q101
SK86CHR7G	Taiwan Semiconductor Corporation	60	8	750 @ 8A	500 @ 60V	DO-214AB (SMC)	Discontinued	Yes
B360-13-F	Diodes Incorporated	60	3	700 @ 3A	500 @ 60V	DO-214AB (SMC)	Active	No
B360A-13-F	Diodes Incorporated	60	3	700 @ 3A	500 @ 60V	DO-214AC (SMA)	Active	Yes
B360AM-13-F	Diodes Incorporated	60	3	700 @ 3A	100 @ 60V	DO-214AC (SMA)	Active	Yes
B360B-13-F	Diodes Incorporated	60	3	700 @ 3A	500 @ 60V	DO-214AA (SMB)	Active	Yes
B360Q-13-F	Diodes Incorporated	60	3	700 @ 3A	500 @ 60V	DO-214AB (SMC)	Active	Yes
B560C-13-F	Diodes Incorporated	60	5	700 @ 5A	500 @ 60V	DO-214AB (SMC)	Active	No
B560CQ-13-F	Diodes Incorporated	60	5	700 @ 5A	500 @ 60V	DO-214AB (SMC)	Active	Yes
CDBC360-HF	Comchip Technology	60	3	700 @ 3A	500 @ 60V	DO-214AB (SMC)	Active	No
CDBC560-HF	Comchip Technology	60	5	750 @ 5A	500 @ 60V	DO-214AB (SMC)	Active	No
HSM360J/TR13	Microchip Technology	60	3	620 @ 3A	100 @ 60V	DO-214AB (SMC)	Active	No

Engineering Selection Recommendations

Direct Package-Compatible Substitutes (DO-214AB SMC):

For applications requiring identical PCB footprint compatibility without layout modification, the following active parts provide direct substitution:

B360Q-13-F (Diodes Incorporated) operates at 3A with 60V rating and maintains DO-214AB package compatibility. This part carries AEC-Q101 automotive qualification and ROHS3 compliance. Selection is appropriate for circuits where the actual current demand does not exceed 3A.

B560CQ-13-F (Diodes Incorporated) operates at 5A with 60V rating in DO-214AB package. This part carries AEC-Q101 automotive qualification and ROHS3 compliance. Selection is appropriate for circuits where the actual current demand does not exceed 5A but exceeds 3A capacity.

CDBC360-HF (Comchip Technology) operates at 3A with 60V rating and maintains DO-214AB package compatibility. This part is active and ROHS3 compliant but does not carry AEC-Q101 qualification. Selection is appropriate for non-automotive applications or where automotive qualification is not required.

CDBC560-HF (Comchip Technology) operates at 5A with 60V rating in DO-214AB package. This part is active and ROHS3 compliant but does not carry AEC-Q101 qualification. Selection is appropriate for non-automotive applications requiring 5A capacity.

Alternative Package Substitutes (Requires PCB Redesign):

B360A-13-F (Diodes Incorporated) provides 3A, 60V operation in DO-214AC (SMA) package with AEC-Q101 qualification and ROHS3 compliance. PCB layout modification is required.

B360B-13-F (Diodes Incorporated) provides 3A, 60V operation in DO-214AA (SMB) package with AEC-Q101 qualification and ROHS3 compliance. PCB layout modification is required.

Current Derating Consideration:

The SK86CHR7G operates at 8A. All identified substitute parts operate at 3A or 5A ratings. Circuit redesign or thermal management assessment is required if the application demands the full 8A capacity of the original part. No direct 8A equivalent is available in the provided substitute list.

Compliance Priority:

For automotive applications requiring AEC-Q101 qualification and ROHS3 compliance with DO-214AB package compatibility, B360Q-13-F or B560CQ-13-F are the recommended selections based on actual circuit current requirements.

Frequently Asked Questions (FAQ)

Q: Can B360Q-13-F directly replace SK86CHR7G without PCB modification?

A: B360Q-13-F maintains identical DO-214AB (SMC) package geometry and pinout, enabling direct PCB substitution without layout changes. However, the current rating is 3A versus the original 8A. Substitution is valid only if the circuit current demand does not exceed 3A.

Q: What is the difference between B360-13-F and B360Q-13-F?

A: Both parts are manufactured by Diodes Incorporated with identical electrical specifications (60V, 3A, 700 mV Vf). The primary difference is packaging format: B360-13-F is supplied in Cut Tape (CT) & Digi-Reel format, while B360Q-13-F is supplied in Tape & Reel (TR) format. Electrical performance is equivalent.

Q: Why do some substitute parts have lower reverse leakage current (100 µA vs 500 µA)?

A: Reverse leakage current variation within the 100 µA to 500 µA range represents normal manufacturing tolerance for Schottky diode technology. Lower leakage current (100 µA) indicates tighter process control and may provide improved performance in low-power or high-impedance circuits. Both specifications are acceptable for standard applications.

Q: Is HSM360J/TR13 suitable for automotive applications?

A: HSM360J/TR13 is manufactured by Microchip Technology with 60V, 3A specifications and DO-214AB package compatibility. However, this part does not carry AEC-Q101 automotive qualification and is RoHS non-compliant. Selection is not recommended for automotive applications requiring these certifications.

Q: Can I use B560CQ-13-F (5A) instead of SK86CHR7G (8A)?

A: B560CQ-13-F provides 5A capacity versus the original 8A specification. Substitution is valid only if circuit analysis confirms that the actual current demand does not exceed 5A. If the application requires the full 8A capacity, this substitute is not appropriate.

Q: What is the significance of AEC-Q101 qualification?

A: AEC-Q101 is an automotive electronics qualification standard ensuring component reliability under automotive operating conditions including temperature cycling, vibration, and humidity exposure. Parts carrying AEC-Q101 qualification are suitable for automotive and mission-critical applications. Parts without this qualification may not meet automotive reliability requirements.

Q: Are all substitute parts ROHS3 compliant?

A: No. B360-13-F, B560C-13-F, CDBC360-HF, CDBC560-HF, and HSM360J/TR13 are ROHS3 compliant. HSM360J/TR13 is specifically noted as RoHS non-compliant. Verify ROHS3 compliance requirement for your application before selection.

Q: What is the difference between SMC, SMA, and SMB packages?

A: SMC (DO-214AB), SMA (DO-214AC), and SMB (DO-214AA) are distinct surface mount package outlines with different physical dimensions and PCB footprints. SMC and SMB are larger packages than SMA. Direct substitution between package types requires PCB layout modification. Only parts with identical package designation (SMC) enable direct PCB substitution.

Q: Why is the SK86CHR7G discontinued?

A: The SK86CHR7G is listed as discontinued at DiGi Electronics. Discontinuation typically reflects manufacturer end-of-life decisions, market consolidation, or transition to newer product lines. Active substitute parts from Diodes Incorporated, Comchip Technology, and Microchip Technology provide functional alternatives for ongoing design requirements.

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