1SMB130AT3G Equivalent & Substitute Parts

Part Overview

The 1SMB130AT3G is a unidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc. in the DO-214AA (SMB) surface mount package. This component is rated for 130V reverse standoff voltage with a 209V maximum clamping voltage and 2.9A peak pulse current, designed for general-purpose transient protection applications. The part is currently listed as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	130V
Voltage - Breakdown (Min)	144V
Voltage - Clamping (Max) @ Ipp	209V
Current - Peak Pulse (10/1000µs)	2.9A
Power - Peak Pulse	600W
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
Operating Temperature Range	-65°C ~ 150°C (TJ)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 1SMB130AT3G is determined by strict electrical and mechanical parameter matching:

Critical Matching Parameters:

Voltage - Reverse Standoff: 130V (exact match required)
Voltage - Breakdown (Min): 144V (exact match required)
Voltage - Clamping (Max) @ Ipp: 209V (exact match required)
Current - Peak Pulse (10/1000µs): 2.9A minimum
Power - Peak Pulse: 600W minimum
Package / Case: DO-214AA or SMB (pin-compatible)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

All substitute parts listed below meet these electrical specifications and package requirements, ensuring direct functional equivalence in circuit applications.

Parameter Comparison

Part Number	Manufacturer	VWM (V)	VBR (V)	VC (V)	Ipp (A)	Ppk (W)	Package	Status	Temp Range (°C)
1SMB130AT3G	Littelfuse Inc.	130	144	209	2.9	600	DO-214AA, SMB	Obsolete	-65 ~ 150
SMBJ130A	MDD	130	144	209	2.9	600	DO-214AA, SMB	Active	-50 ~ 150
SMBJ130A-13-F	Diodes Incorporated	130	144	209	2.9	600	DO-214AA, SMB	Active	-55 ~ 150
SMBJ130A-M3/52	Vishay General Semiconductor	130	144	209	2.9	600	DO-214AA, SMB	Active	-55 ~ 150
SMBJ130A-M3/5B	Vishay General Semiconductor	130	144	209	2.9	600	DO-214AA, SMB	Active	-55 ~ 150
SMBJ130A-TP	Micro Commercial Co	130	144	209	2.9	600	DO-214AA, SMB	Active	-55 ~ 175
SMBJ130A-TR	STMicroelectronics	130	144	209	3.0	600	DO-214AA, SMB	Active	-55 ~ 150
SMBJ130AE3/TR13	Microchip Technology	130	144	209	2.9	600	DO-214AA, SMB	Active	-65 ~ 150
SMBJ130E3/TR13	Microchip Technology	130	144	231	2.6	600	DO-214AA, SMB	Active	-65 ~ 150

Engineering Selection Recommendations

Primary Substitutes (Exact Electrical Match): SMBJ130A (MDD), SMBJ130A-13-F (Diodes Incorporated), SMBJ130A-M3/52 (Vishay), SMBJ130A-M3/5B (Vishay), SMBJ130A-TP (Micro Commercial Co), SMBJ130A-TR (STMicroelectronics), and SMBJ130AE3/TR13 (Microchip Technology) are all active production parts meeting the exact electrical specifications of the obsolete 1SMB130AT3G. All are ROHS3 compliant with MSL 1 rating and DO-214AA/SMB package compatibility.

Secondary Substitute (Modified Clamping Voltage): SMBJ130E3/TR13 (Microchip Technology) maintains the 130V reverse standoff and 144V breakdown voltage but specifies 231V maximum clamping voltage and 2.6A peak pulse current. This part is suitable only for applications where the higher clamping voltage and lower peak current are acceptable within the circuit design margins.

Availability and Compliance: All substitute parts carry ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), matching the original part's environmental specifications. Selection should prioritize active production status parts with adequate inventory levels for supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can SMBJ130E3/TR13 be used as a direct replacement for 1SMB130AT3G? A: SMBJ130E3/TR13 shares the same 130V reverse standoff voltage but differs in clamping voltage (231V vs. 209V) and peak pulse current (2.6A vs. 2.9A). It is functionally equivalent only if the circuit design accommodates the higher clamping voltage and lower peak current specifications.

Q: Are all substitute parts pin-compatible with the original 1SMB130AT3G? A: Yes. All listed substitutes use the DO-214AA (SMB) surface mount package with identical pinout and footprint, enabling direct PCB replacement without layout modifications.

Q: What is the difference between tape & reel and bulk packaging options? A: Packaging designations (such as -TP, -TR, -M3/52, -M3/5B) indicate different supplier packaging formats for manufacturing automation. Electrical specifications remain identical; selection depends on procurement and assembly process requirements.

Q: Does operating temperature range affect substitution suitability? A: The original 1SMB130AT3G operates from -65°C to 150°C. Most substitutes operate from -55°C to 150°C, which is acceptable for most applications. SMBJ130A-TP extends to 175°C, and SMBJ130AE3/TR13 matches the original -65°C lower limit. Verify application temperature requirements before selection.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, matching the environmental compliance of the original part.

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