SMBJ170CA-13 Equivalent & Substitute Parts

Part Overview

The SMBJ170CA-13 is a Transient Voltage Suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in surface-mount applications. This part operates with a 170V reverse standoff voltage and provides 275V maximum clamping voltage with 2.2A peak pulse current capability in the DO-214AA (SMB) package format.

The SMBJ170CA-13 is currently discontinued at DiGi Electronics. Equivalent and substitute parts are available from multiple manufacturers with identical or compatible electrical specifications, ensuring continued design support and procurement flexibility.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	170	V
Voltage - Breakdown (Min)	189	V
Voltage - Clamping (Max) @ Ipp	275	V
Current - Peak Pulse (10/1000µs)	2.2	A
Power - Peak Pulse	600	W
Operating Temperature Range	-55°C to 150°C	TJ
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Type	Zener	—
Bidirectional Channels	1	—

Substitute Part Grouping Explanation

Substitute parts for the SMBJ170CA-13 are qualified based on the following electrical and mechanical parameters:

Voltage - Reverse Standoff (Typ): 170V
Voltage - Breakdown (Min): 189V
Voltage - Clamping (Max) @ Ipp: 275V
Current - Peak Pulse (10/1000µs): 2.2A (or within tolerance)
Power - Peak Pulse: 600W
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Type: Zener
Bidirectional Channels: 1

All substitute parts listed maintain these core electrical specifications and physical package compatibility, ensuring direct functional equivalence in circuit applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	VWM (V)	VBR (V)	VC (V)	Ipp (A)	Ppk (W)	Temp Range (°C)	Product Status	RoHS Status
SMBJ170CA-13	Diodes Incorporated	170	189	275	2.2	600	-55 to 150	Discontinued	Non-compliant
SMBJ170CA-13-F	Diodes Incorporated	170	189	275	2.2	600	-55 to 150	Active	ROHS3 Compliant
SMBJ170CA-TP	Micro Commercial Co	170	189	275	2.2	600	-55 to 175	Active	ROHS3 Compliant
SMBJ170CA	Meritek	170	189	275	2.18	600	-55 to 150	Active	ROHS3 Compliant
SMBJ170CA-HR	Littelfuse Inc.	170	189	275	2.2	600	-65 to 150	Active	ROHS3 Compliant
SMBJ170CA-TR	STMicroelectronics	170	189	275	2.2	600	-55 to 150	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitute (Direct Replacement): SMBJ170CA-13-F (Diodes Incorporated) is the direct equivalent with identical electrical specifications and the same manufacturer. This part is active and ROHS3 compliant, addressing the RoHS non-compliance status of the original SMBJ170CA-13.

Alternative Substitutes (Functionally Equivalent):

SMBJ170CA-TR (STMicroelectronics) and SMBJ170CA-TP (Micro Commercial Co) provide full electrical equivalence with active product status and ROHS3 compliance. SMBJ170CA-TP offers an extended operating temperature range to 175°C, suitable for higher-temperature applications.

SMBJ170CA-HR (Littelfuse Inc.) extends the lower operating temperature limit to -65°C, providing enhanced cold-temperature performance while maintaining all other electrical specifications.

SMBJ170CA (Meritek) is available in high volume with active status and ROHS3 compliance. Peak pulse current is specified at 2.18A, within acceptable tolerance of the 2.2A specification.

All substitute parts maintain DO-214AA (SMB) package compatibility and surface-mount configuration, ensuring PCB layout and assembly process compatibility.

Frequently Asked Questions (FAQ)

Q: Can SMBJ170CA-13-F be used as a direct replacement for SMBJ170CA-13?

A: Yes. SMBJ170CA-13-F is manufactured by the same company (Diodes Incorporated) and maintains identical electrical specifications: 170V reverse standoff, 189V breakdown voltage, 275V clamping voltage, and 2.2A peak pulse current. The primary difference is product status (active vs. discontinued) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between the various SMBJ170CA part numbers?

A: The base part number SMBJ170CA defines the core electrical specifications (170V standoff, 275V clamp). Suffixes indicate packaging format and manufacturer variants: -13-F (Diodes, Tape & Reel), -TP (Micro Commercial, Tape & Reel), -HR (Littelfuse, Tape & Reel), -TR (STMicroelectronics, Cut Tape). All maintain identical electrical performance and DO-214AA package compatibility.

Q: Are there temperature range differences between substitutes?

A: Yes. Most substitutes operate from -55°C to 150°C. SMBJ170CA-TP extends to 175°C maximum junction temperature, and SMBJ170CA-HR extends to -65°C minimum. Select based on your application's thermal requirements.

Q: Is the 2.18A peak pulse current of Meritek SMBJ170CA acceptable versus the 2.2A specification?

A: Yes. The 2.18A specification is within acceptable tolerance for the SMBJ170 series and maintains the same 600W peak pulse power rating. This part is functionally equivalent for general-purpose transient voltage suppression applications.

Q: Do all substitutes use the same DO-214AA (SMB) package?

A: Yes. All listed substitutes use the DO-214AA (SMB) surface-mount package, ensuring compatibility with existing PCB layouts and automated assembly processes.

Q: Which substitute has the best availability?

A: Meritek SMBJ170CA shows the highest inventory at 20,240 pieces. STMicroelectronics SMBJ170CA-TR has 15,292 pieces available. Both are suitable for high-volume production requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message