SMBJ30AE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMBJ30AE3/TR13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, classified as a Zener-type device in the DO-214AA (SMB) surface mount package. This component is designed for general-purpose transient voltage suppression applications, offering a 30V reverse standoff voltage with a 48.4V maximum clamping voltage at peak pulse current. The part is Active status and RoHS3 compliant with unlimited moisture sensitivity rating.

Equivalent and substitute parts are identified to address component availability, supply chain continuity, and design flexibility while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	30	V
Voltage - Breakdown (Min)	33.3	V
Voltage - Clamping (Max) @ Ipp	48.4	V
Current - Peak Pulse (10/1000µs)	12.4	A
Power - Peak Pulse	600	W
Type	Zener	—
Unidirectional Channels	1	—
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature Range	-65 to 150	°C (TJ)
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SMBJ30AE3/TR13 are classified into two categories based on electrical parameter alignment:

Direct Equivalents: Parts meeting all critical electrical specifications including 30V reverse standoff voltage, 33.3V minimum breakdown voltage, 48.4V maximum clamping voltage, and 12.4A peak pulse current. These parts maintain identical functional performance and are interchangeable at the circuit level.

Similar Equivalents: Parts with minor parameter variations that remain within acceptable operating margins. These include parts with clamping voltages of 48.6V (±0.2V variance) or peak pulse currents of 10A to 13A, which operate within the same voltage suppression class but with slightly different transient energy handling characteristics.

Critical Parameters for Substitution:

Reverse Standoff Voltage: 30V (fixed)
Breakdown Voltage: 33.3V minimum (fixed)
Clamping Voltage: 48.4V to 48.6V (±0.2V tolerance)
Peak Pulse Current: 10A to 13A (±2.6A tolerance)
Package: DO-214AA / SMB (surface mount)
Mounting Type: Surface Mount (required)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Reverse Standoff (V)	Voltage - Breakdown (V)	Voltage - Clamping (V)	Current - Peak Pulse (A)	Power - Peak Pulse (W)	Operating Temperature (°C)	Package	RoHS Status	Inventory (Pcs)
SMBJ30AE3/TR13	Microchip Technology	30	33.3	48.4	12.4	600	-65 to 150	DO-214AA, SMB	ROHS3	1070
SMBJ30A	MDD	30	33.3	48.4	12.4	600	-55 to 150	DO-214AA, SMB	RoHS	62817
SMBJ30A-13-F	Diodes Incorporated	30	33.3	48.4	12.4	600	-55 to 150	DO-214AA, SMB	ROHS3	2480
SMBJ30A-E3/52	Vishay General Semiconductor - Diodes Division	30	33.3	48.4	12.4	600	-55 to 150	DO-214AA, SMB	ROHS3	1313
SMBJ30A-E3/5B	Vishay General Semiconductor - Diodes Division	30	33.3	48.4	12.4	600	-55 to 150	DO-214AA, SMB	ROHS3	6465
SMBJ30A-M3/52	Vishay General Semiconductor - Diodes Division	30	33.3	48.4	12.4	600	-55 to 150	DO-214AA, SMB	ROHS3	8386
SMBJ30A-TP	Micro Commercial Co	30	33.3	48.4	12.4	600	-55 to 175	DO-214AA, SMB	ROHS3	5100
SACB30	Littelfuse Inc.	30	33.3	48.6	10	500	-55 to 150	DO-214AA, SMB	ROHS3	5396
SMBJ30A-TR	STMicroelectronics	30	33.3	48.4	13	600	-55 to 150	DO-214AA, SMB	ROHS3	2000

Engineering Selection Recommendations

Direct Substitution (Preferred):

The following parts are direct equivalents to SMBJ30AE3/TR13 and provide identical electrical performance:

SMBJ30A-13-F (Diodes Incorporated): Matches all electrical parameters with ROHS3 compliance and -55 to 150°C operating range. Suitable for applications where the lower temperature limit of -55°C is acceptable.
SMBJ30A-E3/52 (Vishay General Semiconductor - Diodes Division): TransZorb® series equivalent with identical electrical specifications, ROHS3 compliance, and Cut Tape & Digi-Reel® packaging option.
SMBJ30A-E3/5B (Vishay General Semiconductor - Diodes Division): TransZorb® series equivalent with Tape & Reel packaging, ROHS3 compliance, and 6465 units in stock.
SMBJ30A-M3/52 (Vishay General Semiconductor - Diodes Division): TransZorb® series equivalent with ROHS3 compliance and highest inventory availability among Vishay options (8386 units).
SMBJ30A-TP (Micro Commercial Co): Matches electrical specifications with extended operating temperature range (-55 to 175°C), ROHS3 compliance, and suitable for high-temperature applications.
SMBJ30A-TR (STMicroelectronics): TRANSIL™ series equivalent with 13A peak pulse current (0.6A higher than main part), ROHS3 compliance, and identical clamping voltage.

Alternative Substitution (Parameter Variance):

SACB30 (Littelfuse Inc.): Similar equivalent with 48.6V clamping voltage (0.2V higher) and 10A peak pulse current (2.4A lower). Suitable for applications where slightly reduced transient energy handling is acceptable. ROHS3 compliant with 5396 units in stock.
SMBJ30A (MDD): Direct electrical equivalent with RoHS compliance (non-ROHS3). Lower temperature limit of -55°C. High inventory availability (62817 units) suitable for non-critical applications.

All substitute parts maintain DO-214AA (SMB) surface mount package compatibility, unidirectional Zener topology, and unlimited moisture sensitivity rating (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can SMBJ30A-TP replace SMBJ30AE3/TR13 in applications requiring extended temperature operation?

A: Yes. SMBJ30A-TP provides identical electrical parameters with an extended operating temperature range of -55 to 175°C compared to the main part's -65 to 150°C. The upper temperature limit of 175°C accommodates high-temperature circuit environments. The lower limit of -55°C is within acceptable range for most applications.

Q: What is the difference between SMBJ30A-E3/52 and SMBJ30A-E3/5B?

A: Both parts are Vishay TransZorb® series equivalents with identical electrical specifications. The primary difference is packaging: SMBJ30A-E3/52 is supplied in Cut Tape & Digi-Reel® format, while SMBJ30A-E3/5B is supplied in Tape & Reel format. Electrical performance is identical.

Q: Is SACB30 a direct replacement for SMBJ30AE3/TR13?

A: SACB30 is a similar equivalent with minor parameter variations. The clamping voltage is 48.6V (0.2V higher) and peak pulse current is 10A (2.4A lower than the main part). It operates within the same voltage suppression class but with reduced transient energy handling capacity. Selection depends on circuit requirements for peak pulse current and energy dissipation.

Q: Why does SMBJ30A-TR have 13A peak pulse current while the main part specifies 12.4A?

A: SMBJ30A-TR (STMicroelectronics TRANSIL™ series) is rated for 13A peak pulse current, which is 0.6A higher than SMBJ30AE3/TR13. This represents enhanced transient current handling capability while maintaining the same 48.4V clamping voltage and 600W peak pulse power rating. The part is fully compatible and provides additional margin for transient suppression.

Q: What is the significance of ROHS3 compliance versus RoHS compliance?

A: ROHS3 compliance indicates conformance to the latest Restriction of Hazardous Substances directive including additional restricted substances beyond the original RoHS standard. All substitute parts except SMBJ30A (MDD) carry ROHS3 certification. For applications requiring ROHS3 compliance, SMBJ30A should not be selected.

Q: Can I use SMBJ30A (MDD) as a substitute despite lower inventory of other options?

A: SMBJ30A (MDD) provides direct electrical equivalence with 62817 units in stock. However, it carries RoHS compliance rather than ROHS3 and has a lower operating temperature minimum of -55°C versus -65°C for the main part. Selection depends on application compliance requirements and temperature operating range specifications.

Q: Are all substitute parts available in the same DO-214AA (SMB) package?

A: Yes. All substitute parts listed are surface mount devices in DO-214AA (SMB) package format, ensuring mechanical and footprint compatibility with the original SMBJ30AE3/TR13 design.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in the following packaging formats: Tape & Reel (TR), Cut Tape & Digi-Reel® (CT), and standard bulk packaging. Specific packaging availability varies by manufacturer and part number. Refer to individual part specifications for packaging options.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message