SS33HM6G Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS33HM6G is a 30V, 3A Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation in DO-214AB (SMC) surface mount package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing production and repair applications. The device is qualified to AEC-Q101 automotive standards and complies with ROHS3 and REACH regulations. Alternative parts with identical or compatible electrical characteristics are available from multiple manufacturers in active production status.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	30	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) Maximum @ If	500	mV @ 3A
Current - Reverse Leakage @ Vr	500	µA @ 30V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	—
Operating Temperature - Junction	-55 to 125	°C
Package / Case	DO-214AB, SMC	—
Technology	Schottky	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
AEC-Q101 Qualification	Yes	—

Substitute Part Grouping Explanation

Substitution of the SS33HM6G is determined by the following critical parameters:

Electrical Compatibility Requirements:

Voltage - DC Reverse (Vr) rating must be 30V or greater
Current - Average Rectified (Io) must be 3A or greater
Voltage - Forward (Vf) must not exceed 500mV at 3A (or equivalent current rating)
Current - Reverse Leakage must not exceed 500µA at 30V
Speed classification must be Fast Recovery (≤ 500ns, > 200mA)

Mechanical Compatibility Requirements:

Package must be DO-214AB (SMC) or equivalent surface mount package
Mounting type must be Surface Mount
Moisture Sensitivity Level must be 1 (Unlimited)

Regulatory & Compliance Requirements:

RoHS3 compliance required for new designs
REACH Unaffected status required
AEC-Q101 qualification required for automotive applications

Substitute parts are grouped into three categories: Direct Equivalents (identical electrical and package specifications), Direct Alternatives (identical electrical specifications with different packaging), and Similar Alternatives (compatible electrical specifications with higher current ratings or modified forward voltage characteristics).

Parameter Comparison

Part Number	Manufacturer	Vr (Max) V	Io (A)	Vf (Max) mV @ If	Ir @ Vr µA	Package	Temp Range °C	RoHS3	AEC-Q101	Status
SS33HM6G	Taiwan Semiconductor	30	3	500 @ 3A	500 @ 30V	DO-214AB (SMC)	-55 to 125	Yes	Yes	Discontinued
SS33H	Taiwan Semiconductor	30	3	500 @ 3A	500 @ 30V	DO-214AB (SMC)	-55 to 125	Yes	Yes	Active
B330Q-13-F	Diodes Incorporated	30	3	500 @ 3A	500 @ 30V	DO-214AB (SMC)	-55 to 150	Yes	Yes	Active
5821SMJ/TR13	Microchip Technology	30	3	480 @ 3A	1500 @ 30V	DO-214AB (SMC)	-55 to 150	No	No	Active
5821SMJE3/TR13	Microchip Technology	30	3	480 @ 3A	1500 @ 30V	DO-214AB (SMC)	-55 to 150	Yes	No	Active
B330A-13-F	Diodes Incorporated	30	3	500 @ 3A	500 @ 30V	DO-214AC (SMA)	-55 to 150	Yes	Yes	Active
B330B-13-F	Diodes Incorporated	30	3	500 @ 3A	500 @ 30V	DO-214AA (SMB)	-55 to 150	Yes	Yes	Active
B530C-13-F	Diodes Incorporated	30	5	550 @ 5A	500 @ 30V	DO-214AB (SMC)	-55 to 150	Yes	No	Active
B530CQ-13-F	Diodes Incorporated	30	5	700 @ 5A	500 @ 30V	DO-214AB (SMC)	-55 to 150	Yes	Yes	Active
HSM830J/TR13	Microchip Technology	30	8	620 @ 8A	250 @ 30V	DO-214AB (SMC)	-55 to 175	No	No	Active
HSM830JE3/TR13	Microchip Technology	30	8	620 @ 8A	250 @ 30V	DO-214AB (SMC)	-55 to 175	Yes	No	Active

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitute):

SS33H from Taiwan Semiconductor Corporation is the direct equivalent replacement for SS33HM6G. This part maintains identical electrical specifications (30V, 3A, 500mV forward voltage, 500µA reverse leakage) and package configuration (DO-214AB SMC). The part is in active production status with ROHS3 compliance and AEC-Q101 automotive qualification. The only difference is packaging format (Tape & Reel versus unspecified), which does not affect electrical performance.

Direct Electrical Equivalent with Extended Temperature Range:

B330Q-13-F from Diodes Incorporated provides identical electrical performance to SS33HM6G with extended operating temperature range (-55°C to 150°C versus -55°C to 125°C). This part maintains 30V reverse voltage, 3A average rectified current, 500mV forward voltage, and 500µA reverse leakage specifications. The part is in active production with ROHS3 compliance and AEC-Q101 qualification. Package is DO-214AB (SMC), matching the original specification.

Alternative Package Options (Same Electrical Specifications):

B330A-13-F (SMA package, DO-214AC) and B330B-13-F (SMB package, DO-214AA) from Diodes Incorporated provide identical electrical characteristics to SS33HM6G but in different surface mount packages. These alternatives are suitable only if PCB layout permits package substitution. Both maintain 30V/3A ratings, 500mV forward voltage, and 500µA reverse leakage. Both are ROHS3 compliant and AEC-Q101 qualified.

Higher Current Alternatives (Same Voltage Rating):

B530C-13-F and B530CQ-13-F from Diodes Incorporated provide 5A current rating in DO-214AB (SMC) package with 30V reverse voltage rating. These parts are suitable for applications requiring higher current capacity. B530CQ-13-F includes AEC-Q101 qualification; B530C-13-F does not. Forward voltage increases to 550mV (B530C-13-F) or 700mV (B530CQ-13-F) at rated current.

HSM830J/TR13 and HSM830JE3/TR13 from Microchip Technology provide 8A current rating in DO-214AB (SMC) package with 30V reverse voltage. These parts are suitable for applications requiring significantly higher current capacity. Forward voltage is 620mV at 8A. HSM830JE3/TR13 includes ROHS3 compliance; HSM830J/TR13 does not. Neither part includes AEC-Q101 qualification.

Parts Not Recommended for Direct Substitution:

5821SMJ/TR13 and 5821SMJE3/TR13 from Microchip Technology do not meet compliance requirements for automotive applications. While electrically compatible (30V, 3A, 480mV forward voltage), 5821SMJ/TR13 lacks ROHS3 compliance and neither part includes AEC-Q101 qualification. These parts are suitable only for non-automotive applications where compliance requirements are relaxed.

Frequently Asked Questions (FAQ)

Q: Can SS33H be used as a direct replacement for SS33HM6G?

A: Yes. SS33H is the direct equivalent with identical electrical specifications (30V, 3A, 500mV Vf, 500µA Ir) and package (DO-214AB SMC). The part is in active production status with ROHS3 compliance and AEC-Q101 qualification. The only difference is packaging format (Tape & Reel), which does not affect electrical performance or PCB mounting.

Q: What is the difference between B330Q-13-F and SS33HM6G?

A: B330Q-13-F provides identical electrical specifications to SS33HM6G (30V, 3A, 500mV Vf, 500µA Ir) in the same DO-214AB (SMC) package. The primary difference is extended operating temperature range (-55°C to 150°C versus -55°C to 125°C). B330Q-13-F is in active production with ROHS3 compliance and AEC-Q101 qualification.

Q: Can I use B330A-13-F or B330B-13-F instead of SS33HM6G?

A: B330A-13-F and B330B-13-F provide identical electrical specifications but in different packages (SMA and SMB respectively, versus SMC). These alternatives are suitable only if your PCB layout accommodates the different package footprint. Both maintain electrical equivalence and compliance certifications.

Q: Are the Microchip 5821 series parts suitable replacements?

A: The 5821SMJ/TR13 and 5821SMJE3/TR13 are electrically compatible (30V, 3A, 480mV Vf) but do not meet automotive compliance requirements. 5821SMJ/TR13 lacks ROHS3 compliance and neither part includes AEC-Q101 qualification. These parts are suitable only for non-automotive applications.

Q: When should I use B530C-13-F or HSM830JE3/TR13 instead of SS33HM6G?

A: B530C-13-F (5A) and HSM830JE3/TR13 (8A) are suitable when your application requires higher current capacity than the 3A rating of SS33HM6G. Both maintain 30V reverse voltage rating and DO-214AB (SMC) package. Forward voltage increases with higher current ratings. HSM830JE3/TR13 includes ROHS3 compliance; B530C-13-F does not include AEC-Q101 qualification.

Q: What does AEC-Q101 qualification mean?

A: AEC-Q101 is an automotive electronics qualification standard. Parts meeting this qualification have been tested and validated for automotive applications. SS33HM6G, SS33H, B330Q-13-F, B330A-13-F, and B330B-13-F all include AEC-Q101 qualification, making them suitable for automotive designs.

Q: Is ROHS3 compliance important for my application?

A: ROHS3 compliance is required for products sold in the European Union and many other markets. SS33H and B330Q-13-F are ROHS3 compliant. If your application requires ROHS3 compliance, avoid 5821SMJ/TR13 and HSM830J/TR13, which are not compliant.

Q: Can I substitute a higher current part (5A or 8A) in a circuit designed for 3A?

A: Yes. Higher current rated parts are backward compatible in circuits designed for lower current. A 5A or 8A rated diode will function correctly in a 3A circuit. However, forward voltage characteristics may differ, which could affect circuit performance in precision applications. Verify forward voltage specifications for your specific application.

Q: What is the difference between DO-214AB, DO-214AC, and DO-214AA packages?

A: These are different surface mount package designations for Schottky diodes. DO-214AB (SMC) is the original specification for SS33HM6G. DO-214AC (SMA) and DO-214AA (SMB) are alternative packages with different physical dimensions and PCB footprints. Electrical performance is identical; package selection depends on PCB layout requirements.

Q: Are there any temperature range limitations I should consider?

A: SS33HM6G operates from -55°C to 125°C. B330Q-13-F, B330A-13-F, and B330B-13-F extend this to -55°C to 150°C. HSM830JE3/TR13 extends to -55°C to 175°C. If your application requires operation above 125°C, select a substitute with extended temperature range.

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