SSA33LHE3_A/I Schottky Diode 30V 3A DO-214AC Equivalent & Substitute Parts

Part Overview

The SSA33LHE3_A/I is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 30V DC reverse voltage and 3A average rectified current in a surface mount DO-214AC (SMA) package. This component is classified as Active product status with automotive-grade qualification (AEC-Q101) and ROHS3 compliance. Equivalent and substitute parts are identified based on matching or compatible electrical and mechanical parameters to support design flexibility, inventory optimization, and supply chain continuity.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	450 mV @ 3 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	500 µA @ 30 V	µA
Technology	Schottky	—
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-65°C ~ 150°C	°C
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of Schottky diodes is determined by the following critical parameters:

Primary Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 30V
Current - Average Rectified (Io): 3A or higher
Technology: Schottky
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount

Secondary Compatibility Factors:

Voltage - Forward (Vf) (Max) @ If: Within acceptable operating range
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: Within acceptable limits
Operating Temperature - Junction: Minimum -55°C to maximum 150°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Parametric Equivalent Parts (SSA33L-E3/5AT, SSA33L-E3/61T, SSA33L-M3/5AT, SSA33LHE3_A/H) match all electrical specifications and package requirements. Differences exist only in packaging format (Tape & Reel versus Cut Tape & Digi-Reel) and inventory availability.

Manufacturer Recommended Substitutes (B330A-13-F, MBRA130LT3G, RSX301L-30TE25, SS13, STPS130A, STPS1L30A) are from alternative manufacturers. These parts maintain the 30V reverse voltage rating and DO-214AC/SMA package but may differ in current rating, forward voltage, reverse leakage, or temperature range. Selection depends on application-specific requirements and compliance needs.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	Reverse Leakage @ Vr [µA]	Package	Grade	AEC-Q101	Temp Range [°C]	Product Status
SSA33LHE3_A/I	Vishay	30	3	450 @ 3A	500 @ 30V	DO-214AC, SMA	Automotive	Yes	-65 ~ 150	Active
SSA33L-E3/5AT	Vishay	30	3	450 @ 3A	500 @ 30V	DO-214AC, SMA	—	—	-65 ~ 150	Active
SSA33L-E3/61T	Vishay	30	3	450 @ 3A	500 @ 30V	DO-214AC, SMA	—	—	-65 ~ 150	Active
SSA33L-M3/5AT	Vishay	30	3	450 @ 3A	500 @ 30V	DO-214AC, SMA	—	—	-65 ~ 150	Active
SSA33LHE3_A/H	Vishay	30	3	450 @ 3A	500 @ 30V	DO-214AC, SMA	Automotive	Yes	-65 ~ 150	Active
B330A-13-F	Diodes Incorporated	30	3	500 @ 3A	500 @ 30V	DO-214AC, SMA	Automotive	Yes	-55 ~ 150	Active
MBRA130LT3G	onsemi	30	1	410 @ 1A	1000 @ 30V	DO-214AC, SMA	—	—	-55 ~ 125	Active
RSX301L-30TE25	Rohm Semiconductor	30	3	420 @ 3A	200 @ 30V	DO-214AC, SMA	—	—	—	Not For New Designs
SS13	Fairchild Semiconductor	30	1	500 @ 1A	200 @ 30V	DO-214AC, SMA	—	—	-65 ~ 125	Active
STPS130A	STMicroelectronics	30	1	550 @ 1A	10 @ 30V	DO-214AC, SMA	—	—	—	Active
STPS1L30A	STMicroelectronics	30	1	395 @ 1A	200 @ 30V	DO-214AC, SMA	—	—	—	Active

Engineering Selection Recommendations

Full Parametric Equivalents (Vishay SSA33 Series): SSA33L-E3/5AT, SSA33L-E3/61T, and SSA33L-M3/5AT are direct parametric equivalents to SSA33LHE3_A/I. All three maintain identical electrical specifications (30V, 3A, 450mV forward voltage, 500µA reverse leakage) and temperature range (-65°C to 150°C). Selection among these variants is based on packaging format preference: Tape & Reel (TR) for SSA33L-E3/5AT and SSA33L-M3/5AT, or Cut Tape & Digi-Reel for SSA33L-E3/61T. SSA33LHE3_A/H is also a full parametric equivalent with automotive grade and AEC-Q101 qualification matching the main part.

Automotive-Grade Cross-Manufacturer Substitute: B330A-13-F (Diodes Incorporated) is rated for 30V, 3A with automotive grade and AEC-Q101 qualification. Forward voltage is 500mV @ 3A (50mV higher than SSA33LHE3_A/I). Operating temperature range is -55°C to 150°C (5°C higher minimum than main part). This part is suitable for automotive applications requiring AEC-Q101 compliance.

Current-Limited Substitutes (1A Rating): MBRA130LT3G (onsemi), SS13 (Fairchild Semiconductor), STPS130A (STMicroelectronics), and STPS1L30A (STMicroelectronics) are rated for 1A average rectified current, not 3A. These parts are suitable only for applications where the circuit current requirement does not exceed 1A. Forward voltage characteristics vary: MBRA130LT3G at 410mV @ 1A, SS13 at 500mV @ 1A, STPS130A at 550mV @ 1A, and STPS1L30A at 395mV @ 1A.

Legacy/Obsolescence Consideration: RSX301L-30TE25 (Rohm Semiconductor) maintains 30V, 3A specifications but is marked "Not For New Designs." This part is retained in the substitute list for legacy system support only and should not be selected for new designs.

Compliance and Certification: For applications requiring automotive qualification, select SSA33LHE3_A/I, SSA33LHE3_A/H, or B330A-13-F. All three carry AEC-Q101 certification and automotive grade designation. All listed parts are ROHS3 compliant and have MSL rating of 1 (Unlimited).

Frequently Asked Questions (FAQ)

Q: Can I substitute a 1A-rated diode (MBRA130LT3G, SS13, STPS130A, STPS1L30A) for the 3A SSA33LHE3_A/I?

A: No. The SSA33LHE3_A/I is rated for 3A average rectified current. Substituting a 1A-rated diode will result in component overstress and potential failure if the circuit draws more than 1A. Current rating must equal or exceed the application requirement.

Q: What is the difference between SSA33L-E3/5AT, SSA33L-E3/61T, and SSA33L-M3/5AT?

A: These three parts are parametric equivalents with identical electrical specifications. The differences are in packaging format: SSA33L-E3/5AT and SSA33L-M3/5AT are supplied in Tape & Reel (TR) format, while SSA33L-E3/61T is supplied in Cut Tape & Digi-Reel format. Selection depends on your procurement and assembly process requirements.

Q: Is B330A-13-F a direct replacement for SSA33LHE3_A/I?

A: B330A-13-F is a functional equivalent with matching 30V and 3A ratings, automotive grade, and AEC-Q101 qualification. The forward voltage is 500mV @ 3A compared to 450mV for the SSA33LHE3_A/I, and the minimum operating temperature is -55°C versus -65°C. For most applications, this substitution is acceptable; however, verify forward voltage drop and temperature range compatibility with your specific circuit design.

Q: Why is RSX301L-30TE25 listed as a substitute if it is marked "Not For New Designs"?

A: RSX301L-30TE25 is included for reference in legacy system support and repair scenarios. It maintains 30V, 3A electrical specifications but should not be selected for new product designs. Use SSA33 series or B330A-13-F for new designs.

Q: Do all substitute parts have the same package?

A: All listed parts use the DO-214AC (SMA) surface mount package. Mechanical compatibility is maintained across all substitutes. Verify PCB footprint design accommodates the SMA package standard.

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

A: AEC-Q101 is the Automotive Electronics Council qualification standard for discrete semiconductors. Parts carrying this certification (SSA33LHE3_A/I, SSA33LHE3_A/H, B330A-13-F) meet automotive industry reliability and quality requirements. For automotive applications, select only AEC-Q101 qualified parts.

Q: Can I use SSA33L-E3/5AT in place of SSA33LHE3_A/I in an automotive application?

A: SSA33L-E3/5AT is a parametric equivalent but does not carry automotive grade or AEC-Q101 qualification designation in the provided data. For automotive applications requiring AEC-Q101 compliance, use SSA33LHE3_A/I, SSA33LHE3_A/H, or B330A-13-F.

Q: What does MSL 1 (Unlimited) mean?

A: Moisture Sensitivity Level (MSL) 1 indicates the component has unlimited shelf life and does not require special moisture control during storage or handling. No baking or desiccant storage is required before assembly.

Q: How do I determine which substitute is best for my application?

A: Verify the following in order: (1) Current requirement must not exceed the part's Io rating; (2) Reverse voltage must be at least 30V; (3) For automotive applications, select only AEC-Q101 qualified parts; (4) Confirm forward voltage drop is acceptable for your circuit; (5) Verify operating temperature range covers your application environment; (6) Confirm packaging format (Tape & Reel or Cut Tape) matches your assembly process.

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