SSL33 R7G Schottky Diode 30V 3A DO-214AB Equivalent & Substitute Parts

Part Overview

The SSL33 R7G is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 30V reverse voltage and 3A average rectified current in a DO-214AB (SMC) surface mount package. This component is classified as discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement requirements. The part operates across a junction temperature range of -55°C to 125°C and demonstrates RoHS3 compliance with unlimited moisture sensitivity rating (MSL 1).

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	30	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) Maximum @ If	410	mV @ 3 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	200	µA @ 30 V
Technology	Schottky	—
Mounting Type	Surface Mount	—
Package / Case	DO-214AB, SMC	—
Operating Temperature - Junction	-55 to 125	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SSL33 R7G is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) Maximum: 30V
Current - Average Rectified (Io): 3A
Technology: Schottky
Mounting Type: Surface Mount
Package / Case: DO-214AB, SMC
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Secondary Compatibility Factors:

Operating Temperature Range: Minimum -55°C junction temperature required
RoHS Compliance: ROHS3 compliance preferred for regulatory alignment
Moisture Sensitivity Level: MSL 1 (Unlimited) acceptable

Substitute parts are grouped into two categories:

Category A - Direct Electrical Equivalents (3A Rating): Parts maintaining identical 3A current rating with matching voltage and package specifications. These include the Microchip 5821SMJE3/TR13 and Diodes Incorporated B330-13-F, B330Q-13-F variants.

Category B - Higher Current Capability (5A+ Rating): Parts exceeding the 3A specification, including Diodes Incorporated B530C-13-F (5A) and Microchip HSM830JE3/TR13 (8A). These provide design margin for applications requiring enhanced current handling.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	Package	Temp Range [°C]	RoHS Status	Product Status
SSL33 R7G	Taiwan Semiconductor	30	3	410 @ 3A	DO-214AB, SMC	-55 to 125	ROHS3	Discontinued
5821SMJE3/TR13	Microchip Technology	30	3	480 @ 3A	DO-214AB	-55 to 150	ROHS3	Active
5821SMJ/TR13	Microchip Technology	30	3	480 @ 3A	DO-214AB	-55 to 150	Non-compliant	Active
B330-13-F	Diodes Incorporated	30	3	500 @ 3A	DO-214AB, SMC	-55 to 125	ROHS3	Active
B330A-13-F	Diodes Incorporated	30	3	500 @ 3A	DO-214AC, SMA	-55 to 150	ROHS3	Active
B330B-13-F	Diodes Incorporated	30	3	500 @ 3A	DO-214AA, SMB	-55 to 150	ROHS3	Active
B330Q-13-F	Diodes Incorporated	30	3	500 @ 3A	DO-214AB, SMC	-55 to 150	ROHS3	Active
B530C-13-F	Diodes Incorporated	30	5	550 @ 5A	DO-214AB, SMC	-55 to 150	ROHS3	Active
B530CQ-13-F	Diodes Incorporated	30	5	700 @ 5A	DO-214AB, SMC	-55 to 150	ROHS3	Active
HSM830JE3/TR13	Microchip Technology	30	8	620 @ 8A	DO-214AB	-55 to 175	ROHS3	Active
HSM830J/TR13	Microchip Technology	30	8	620 @ 8A	DO-214AB	-55 to 175	Non-compliant	Active

Engineering Selection Recommendations

Recommended Primary Substitutes (Direct 3A Equivalents):

The 5821SMJE3/TR13 (Microchip Technology) and B330Q-13-F (Diodes Incorporated) represent the most direct functional replacements for the SSL33 R7G. Both maintain the 30V/3A electrical specification, DO-214AB package compatibility, and ROHS3 compliance. The 5821SMJE3/TR13 extends the operating temperature range to 150°C and is currently in active production with 1051 units in stock. The B330Q-13-F provides automotive-grade qualification (AEC-Q101) with 823 units available and identical package footprint.

Secondary Substitutes (Package Variants):

The B330-13-F (SMC package, Cut Tape & Digi-Reel packaging) and B330A-13-F (SMA package variant) maintain electrical equivalence with extended temperature ratings to 150°C. The B330A-13-F requires PCB layout modification due to SMA package geometry (DO-214AC) versus the original SMC (DO-214AB). High inventory availability (62,100 and 70,100 units respectively) supports procurement continuity.

Higher Current Alternatives (Design Margin Applications):

The B530C-13-F (5A rating) and HSM830JE3/TR13 (8A rating) provide enhanced current capacity within the same 30V voltage class and DO-214AB package envelope. These are suitable for applications where design margin or future current scaling is required. Both maintain ROHS3 compliance and active production status.

Compliance Considerations:

All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, matching the original SSL33 R7G regulatory profile. Parts designated as RoHS non-compliant (5821SMJ/TR13, HSM830J/TR13) are available but require regulatory review for new designs.

Frequently Asked Questions (FAQ)

Q: Can the 5821SMJE3/TR13 directly replace the SSL33 R7G without PCB modification?

A: Yes. The 5821SMJE3/TR13 maintains identical electrical specifications (30V, 3A, Schottky technology) and DO-214AB package geometry. No PCB layout changes are required. The forward voltage increases from 410 mV to 480 mV at 3A, which is within acceptable tolerance for most rectification applications.

Q: What is the difference between B330-13-F and B330Q-13-F?

A: Both parts are electrically identical (30V, 3A, 500 mV forward voltage). The primary difference is packaging format: B330-13-F is supplied in Cut Tape & Digi-Reel format, while B330Q-13-F is supplied in Tape & Reel (TR) format. B330Q-13-F includes automotive-grade qualification (AEC-Q101). Select based on assembly line requirements and inventory management preferences.

Q: Why do some substitutes have higher forward voltage specifications?

A: Forward voltage variation (410 mV to 700 mV at rated current) reflects manufacturing process differences between suppliers and device grades. Higher forward voltage increases power dissipation proportionally. Verify thermal design margins in applications with tight power budgets or high-frequency switching.

Q: Can I use the B530C-13-F (5A) in place of the SSL33 R7G (3A)?

A: Yes, electrically and mechanically. The B530C-13-F maintains 30V reverse voltage and DO-214AB package compatibility. The 5A current rating provides design margin for applications operating below 3A. Forward voltage increases to 550 mV at 5A. This substitution is suitable for designs requiring enhanced current capacity or thermal margin.

Q: Are there temperature range limitations when substituting?

A: The SSL33 R7G operates to 125°C junction temperature. Most recommended substitutes extend to 150°C or higher, providing additional thermal margin. If the original design operates near 125°C, verify that the substitute's higher temperature rating does not introduce thermal management changes. Extended temperature range is generally beneficial for reliability.

Q: What is the significance of AEC-Q101 qualification on B330Q-13-F and B330B-13-F?

A: AEC-Q101 is an automotive electronics qualification standard. Parts bearing this qualification have undergone additional reliability testing and are approved for automotive applications. If the original SSL33 R7G application is non-automotive, AEC-Q101 qualification is not required but provides additional quality assurance.

Q: Can I substitute the HSM830JE3/TR13 (8A) for the SSL33 R7G (3A)?

A: Yes, with design review. The HSM830JE3/TR13 maintains 30V voltage rating and DO-214AB package compatibility. The 8A current rating and extended temperature range to 175°C provide significant design margin. Forward voltage increases to 620 mV at 8A. This substitution is appropriate for applications requiring substantial current headroom or extreme temperature operation.

Q: What is the impact of RoHS compliance status on part selection?

A: The SSL33 R7G is ROHS3 compliant. Recommended substitutes maintain this compliance status. Parts marked as RoHS non-compliant (5821SMJ/TR13, HSM830J/TR13) contain restricted substances and require regulatory approval for new designs in jurisdictions enforcing RoHS directives. For ongoing production, select ROHS3-compliant alternatives.

Q: How does packaging format (Cut Tape vs. Tape & Reel) affect substitution?

A: Packaging format affects supply chain logistics and assembly line compatibility, not electrical performance. Cut Tape & Digi-Reel format (B330-13-F) suits lower-volume or manual assembly operations. Tape & Reel format (B330Q-13-F, 5821SMJE3/TR13) is optimized for high-volume automated pick-and-place assembly. Select based on production volume and assembly equipment capabilities.

Q: Is the reverse leakage current difference significant between SSL33 R7G (200 µA) and substitutes (500 µA to 1.5 mA)?

A: Reverse leakage variation reflects manufacturing process differences. At 30V reverse bias, the SSL33 R7G exhibits 200 µA leakage while some substitutes reach 1.5 mA. In low-power or precision analog applications, verify that increased leakage does not degrade circuit performance. For most rectification applications, this difference is negligible.

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