SMBJ36AE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMBJ36AE3/TR13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This Zener-type TVS diode operates with a 36V reverse standoff voltage and provides clamping at 58.1V maximum, with a peak pulse current rating of 10.3A. The device is packaged in DO-214AA (SMB) format and supplied on tape and reel. Product status is active with full RoHS3 compliance and unlimited moisture sensitivity rating.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required, or when sourcing from multiple manufacturers is needed to optimize supply chain reliability and cost efficiency.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	36	V
Voltage - Breakdown (Min)	40	V
Voltage - Clamping (Max) @ Ipp	58.1	V
Current - Peak Pulse (10/1000µs)	10.3	A
Power - Peak Pulse	600	W
Operating Temperature Range	-65 to 150	°C (TJ)
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Type	Zener	—
Unidirectional Channels	1	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SMBJ36AE3/TR13 is determined by strict electrical and mechanical parameter matching. The critical parameters that define substitutability are:

Electrical Parameters (Must Match):

Voltage - Reverse Standoff: 36V (typical)
Voltage - Breakdown (Min): 40V
Voltage - Clamping (Max) @ Ipp: 58.1V (within tolerance)
Current - Peak Pulse (10/1000µs): 10.3A to 10.4A (acceptable range)
Power - Peak Pulse: 600W
Type: Zener, Unidirectional (1 channel)

Mechanical Parameters (Must Match):

Package / Case: DO-214AA or SMB equivalent
Mounting Type: Surface Mount
Supplier Device Package: SMBJ or equivalent SMB format

Compliance Parameters (Must Match):

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
Product Status: Active

Operating Temperature Consideration: The main part operates from -65°C to 150°C. Substitute parts with operating ranges of -55°C to 150°C or -55°C to 175°C remain functionally compatible for most applications, as the upper temperature limit is the primary constraint in typical TVS applications.

Parts are grouped into two categories:

Direct Substitutes: Parts with identical electrical specifications (36V standoff, 58.1V clamp, 10.3A to 10.4A peak pulse current) and DO-214AA/SMB packaging.

Similar Substitutes: Parts with the same voltage class and package but with minor variations in peak pulse current or clamping voltage that fall within acceptable tolerance ranges for general-purpose TVS applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Reverse Standoff (V)	Voltage - Clamping (Max) @ Ipp (V)	Current - Peak Pulse (A)	Power - Peak Pulse (W)	Package / Case	Operating Temperature (°C)	RoHS Status
SMBJ36AE3/TR13	Microchip Technology	36	58.1	10.3	600	DO-214AA, SMB	-65 to 150	ROHS3 Compliant
SMBJ36A	EVVO Semi	36	58.1	10.4	600	DO-214AC, SMA	-65 to 150	ROHS3 Compliant
SMBJ36A-13-F	Diodes Incorporated	36	58.1	10.3	600	DO-214AA, SMB	-55 to 150	ROHS3 Compliant
SMBJ36A-E3/52	Vishay General Semiconductor - Diodes Division	36	58.1	10.3	600	DO-214AA, SMB	-55 to 150	ROHS3 Compliant
SMBJ36A-E3/5B	Vishay General Semiconductor - Diodes Division	36	58.1	10.3	600	DO-214AA, SMB	-55 to 150	ROHS3 Compliant
SMBJ36A-TP	Micro Commercial Co	36	58.1	10.3	600	DO-214AA, SMB	-55 to 175	ROHS3 Compliant
P6SMBJ36AS_R1_00001	Panjit International Inc.	36	58.1	10.4	600	DO-214AA, SMB	-55 to 150	ROHS3 Compliant
SACB36	Littelfuse Inc.	36	60	8.6	500	DO-214AA, SMB	-55 to 150	ROHS3 Compliant
SM6T42AY	STMicroelectronics	36	76	52 (8/20µs)	600	DO-214AA, SMB	-55 to 150	ROHS3 Compliant

Engineering Selection Recommendations

Direct Substitutes (Recommended for Pin-for-Pin Replacement):

The following parts are recommended as direct substitutes for the SMBJ36AE3/TR13 due to matching electrical specifications and DO-214AA/SMB packaging:

SMBJ36A-13-F (Diodes Incorporated): Identical electrical parameters with DO-214AA/SMB package. Active product status with ROHS3 compliance. Operating temperature range -55°C to 150°C is suitable for applications not requiring the extended -65°C lower limit.
SMBJ36A-E3/52 (Vishay General Semiconductor - Diodes Division): Identical electrical specifications with DO-214AA/SMB package. TransZorb® series designation indicates established reliability. Operating temperature -55°C to 150°C. REACH Unaffected status confirmed.
SMBJ36A-E3/5B (Vishay General Semiconductor - Diodes Division): Identical electrical specifications with DO-214AA/SMB package. Tape & Reel packaging matches the original part format. Operating temperature -55°C to 150°C. REACH Unaffected status confirmed.
SMBJ36A-TP (Micro Commercial Co): Identical electrical specifications with DO-214AA/SMB package. Extended operating temperature range to 175°C provides additional thermal margin. Tape & Reel packaging. REACH Unaffected status confirmed.
P6SMBJ36AS_R1_00001 (Panjit International Inc.): Equivalent electrical specifications (10.4A peak pulse current within acceptable tolerance). DO-214AA/SMB package. Active product status with ROHS3 compliance and REACH Unaffected status.

Similar Substitutes (Application-Dependent Selection):

SMBJ36A (EVVO Semi): Equivalent electrical specifications (10.4A peak pulse current). Package is DO-214AC/SMA format, which differs from the original DO-214AA/SMB. This part is suitable only if the application circuit board layout can accommodate the SMA package footprint. High inventory availability (122,200 pcs).
SACB36 (Littelfuse Inc.): Similar voltage class (36V standoff) with slightly higher clamping voltage (60V vs. 58.1V) and lower peak pulse current (8.6A vs. 10.3A). Lower power rating (500W vs. 600W). Suitable for applications with less stringent current handling requirements. SACB series designation indicates Littelfuse product line.
SM6T42AY (STMicroelectronics): Same voltage class (36V standoff) with significantly higher clamping voltage (76V) and peak pulse current (52A at 8/20µs pulse). Automotive-grade qualification (AEC-Q101) and TRANSIL™ series designation. Suitable for high-energy transient suppression applications requiring greater current capacity. Not recommended as direct substitute due to different electrical characteristics.

Compliance Verification:

All recommended substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited) rating, matching the original part's environmental specifications. REACH Unaffected status is confirmed for Vishay, Diodes Incorporated, Panjit, and Littelfuse parts.

Frequently Asked Questions (FAQ)

Q: Can SMBJ36A (EVVO Semi) be used as a direct replacement for SMBJ36AE3/TR13?

A: SMBJ36A from EVVO Semi has identical electrical specifications (36V standoff, 58.1V clamp, 10.4A peak pulse). However, the package is DO-214AC/SMA format, while the original part uses DO-214AA/SMB format. These packages have different footprints and pin configurations. Substitution is possible only if the circuit board layout is redesigned to accommodate the SMA package. For drop-in replacement without board modification, use DO-214AA/SMB packaged alternatives.

Q: What is the difference between SMBJ36A-E3/5B and SMBJ36A-E3/52?

A: Both parts are manufactured by Vishay General Semiconductor and have identical electrical specifications (36V standoff, 58.1V clamp, 10.3A peak pulse). The primary difference is packaging format: SMBJ36A-E3/5B is supplied on Tape & Reel (TR), while SMBJ36A-E3/52 is supplied on Cut Tape (CT) & Digi-Reel®. The suffix designations (-5B vs. -52) indicate different packaging and reel configurations. Select based on your assembly process requirements.

Q: Is SACB36 (Littelfuse) a suitable substitute?

A: SACB36 shares the same 36V voltage class and DO-214AA/SMB package. However, it has a higher clamping voltage (60V vs. 58.1V) and lower peak pulse current (8.6A vs. 10.3A). Substitution is acceptable only if the application circuit can tolerate the higher clamping voltage and does not require the full 10.3A peak pulse current capacity. For applications with tight voltage regulation requirements or high transient current demands, use direct substitutes with matching 58.1V clamping voltage.

Q: Why is SM6T42AY listed as a similar substitute if it has different electrical characteristics?

A: SM6T42AY maintains the same 36V voltage class and DO-214AA/SMB package, making it mechanically compatible. However, its significantly higher clamping voltage (76V) and peak pulse current (52A) indicate it is designed for high-energy transient suppression applications. This part is listed as a similar substitute for reference only, suitable for applications requiring greater transient energy absorption. It is not recommended as a direct replacement for general-purpose 36V TVS applications.

Q: Does the operating temperature range difference affect substitutability?

A: The original SMBJ36AE3/TR13 operates from -65°C to 150°C. Most substitute parts operate from -55°C to 150°C or -55°C to 175°C. For applications operating above -55°C ambient temperature, the reduced lower temperature limit does not affect performance. If your application requires operation below -55°C, verify that the substitute part's temperature range meets your requirements. SMBJ36A-TP extends to 175°C upper limit, providing additional thermal margin for high-temperature applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all substitute parts listed in this reference are ROHS3 compliant and have Moisture Sensitivity Level 1 (Unlimited) rating, matching the original part's environmental specifications. This ensures compatibility with modern manufacturing processes and environmental regulations.

Q: What does the "Tape & Reel (TR)" packaging designation mean?

A: Tape & Reel (TR) packaging indicates the component is supplied wound on a continuous reel of carrier tape, typically used for high-volume automated assembly processes. This format is standard for surface-mount components and matches the original SMBJ36AE3/TR13 packaging. Alternative packaging formats such as Cut Tape (CT) or Digi-Reel® are suitable for lower-volume applications or different assembly equipment.

Q: Can I substitute based on peak pulse current alone?

A: No. While peak pulse current is an important parameter, substitution requires matching all critical electrical parameters: reverse standoff voltage (36V), breakdown voltage (40V minimum), and clamping voltage (58.1V). Peak pulse current variations of ±0.1A (10.3A to 10.4A) are acceptable due to manufacturing tolerances, but larger deviations indicate different device design. Always verify complete electrical specifications before substitution.

Q: What is the significance of the "TransZorb®" series designation?

A: TransZorb® is Vishay's product line designation for transient voltage suppressors. This designation indicates the part belongs to an established, qualified product family with documented performance characteristics. Parts bearing this designation (SMBJ36A-E3/52 and SMBJ36A-E3/5B) have undergone rigorous testing and are suitable for critical applications requiring proven reliability.

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