SMBJ100C Transient Voltage Suppressor Equivalent & Substitute Parts

Part Overview

The SMBJ100C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 100V reverse standoff voltage rating with a 170.1V maximum clamping voltage and 3.7A peak pulse current capability in a DO-214AA (SMB) package.

The SMBJ100C is classified as obsolete. Equivalent and substitute parts are available from multiple manufacturers with active product status, offering identical or compatible electrical and mechanical specifications suitable for direct replacement in new designs or production continuity.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	100	V
Voltage - Breakdown (Min)	105.3	V
Voltage - Clamping (Max) @ Ipp	170.1	V
Current - Peak Pulse (10/1000µs)	3.7	A
Power - Peak Pulse	600	W
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature Range	-65 to 150	°C (TJ)
Type	Zener	—
Bidirectional Channels	1	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SMBJ100C are qualified based on the following electrical and mechanical parameters:

Voltage - Reverse Standoff (Typ): 100V
Voltage - Clamping (Max) @ Ipp: 162V or 170.1V
Current - Peak Pulse (10/1000µs): 3.7A or 3.8A
Power - Peak Pulse: 600W
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Type: Zener, Bidirectional
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts maintain the same 100V reverse standoff voltage and 600W peak pulse power rating. Clamping voltage variations (162V vs. 170.1V) and peak pulse current variations (3.7A vs. 3.8A) remain within acceptable tolerance ranges for general-purpose transient suppression applications. All substitutes are available in active product status from multiple manufacturers, ensuring supply chain continuity.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Reverse Standoff (Typ) [V]	Voltage - Breakdown (Min) [V]	Voltage - Clamping (Max) @ Ipp [V]	Current - Peak Pulse (10/1000µs) [A]	Power - Peak Pulse [W]	Operating Temperature [°C]	Product Status
SMBJ100C	Littelfuse Inc.	100	105.3	170.1	3.7	600	-65 to 150	Obsolete
SMBJ100CA	Good-Ark Semiconductor	100	111	162	3.7	600	-55 to 150	Active
SMBJ100CA-13-F	Diodes Incorporated	100	111	162	3.7	600	-55 to 150	Active
SMBJ100CA-E3/5B	Vishay General Semiconductor - Diodes Division	100	111	162	3.7	600	-55 to 150	Active
SMBJ100CA-TP	Micro Commercial Co	100	111	162	3.7	600	-55 to 175	Active
SMBJ100CA-TR	STMicroelectronics	100	111	162	3.8	600	-55 to 150	Active
TV06B101JB-G	Comchip Technology	100	111	162	3.7	600	Not specified	Active
TV06B101JB-HF	Comchip Technology	100	111	162	3.7	600	Not specified	Active

Engineering Selection Recommendations

All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original SMBJ100C specifications. Selection among active alternatives should prioritize:

Primary Substitutes (Highest Compatibility):

SMBJ100CA (Good-Ark Semiconductor): Active status with full inventory availability (20,300 pcs). Identical electrical parameters to SMBJ100C except clamping voltage (162V vs. 170.1V) and operating temperature floor (-55°C vs. -65°C).
SMBJ100CA-13-F (Diodes Incorporated): Active status with 7,900 pcs in stock. Identical specifications to SMBJ100CA.
SMBJ100CA-E3/5B (Vishay General Semiconductor - Diodes Division): Active status, TransZorb® series, 1,962 pcs available. Identical electrical parameters to SMBJ100CA.

Extended Temperature Range Option:

SMBJ100CA-TP (Micro Commercial Co): Extends upper operating temperature to 175°C (vs. 150°C standard). Suitable for applications requiring elevated temperature performance. 2,928 pcs in stock.

Alternative Manufacturers:

SMBJ100CA-TR (STMicroelectronics): TRANSIL™ series with 3.8A peak pulse current (vs. 3.7A). 7,802 pcs available.
TV06B101JB-G and TV06B101JB-HF (Comchip Technology): Alternative sourcing options with 791 and 1,093 pcs respectively.

All substitutes maintain DO-214AA (SMB) package compatibility and surface-mount configuration identical to the original SMBJ100C.

Frequently Asked Questions (FAQ)

Q: Can SMBJ100CA directly replace SMBJ100C in existing designs?

A: Yes. Both parts share identical 100V reverse standoff voltage, 600W peak pulse power, 3.7A peak pulse current, and DO-214AA surface-mount package. The clamping voltage difference (162V vs. 170.1V) and operating temperature floor adjustment (-55°C vs. -65°C) are within acceptable tolerance for general-purpose transient suppression applications.

Q: What is the difference between SMBJ100CA variants from different manufacturers?

A: All SMBJ100CA variants (Good-Ark, Diodes Incorporated, Vishay, Micro Commercial Co) share identical electrical specifications: 100V standoff, 162V clamping, 3.7A peak pulse, 600W power. Differences exist only in packaging options (Cut Tape, Tape & Reel) and operating temperature ranges. SMBJ100CA-TP extends to 175°C upper temperature.

Q: Why does SMBJ100CA-TR show 3.8A peak pulse current instead of 3.7A?

A: STMicroelectronics SMBJ100CA-TR specification lists 3.8A peak pulse current, which is within acceptable tolerance for the 100V/600W TVS diode classification. This minor variation does not affect substitution compatibility for general-purpose applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original SMBJ100C environmental specifications.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in Tape & Reel (TR) and Cut Tape (CT) configurations. All maintain the DO-214AA (SMB) component package. Verify packaging selection based on assembly equipment and procurement requirements.

Q: Can TV06B101JB-G and TV06B101JB-HF be used interchangeably with SMBJ100CA?

A: Yes. Both Comchip Technology parts (TV06B101JB-G and TV06B101JB-HF) share identical electrical specifications with SMBJ100CA: 100V standoff, 162V clamping, 3.7A peak pulse, 600W power, and DO-214AA package. Selection between them depends on packaging and inventory availability.

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