SAC7.0-TP Equivalent & Substitute Parts

Part Overview

The SAC7.0-TP is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose transient voltage protection in through-hole applications. The device features a 7V reverse standoff voltage, 12.6V maximum clamping voltage at peak pulse current, and 38A peak pulse current capability with 500W peak pulse power dissipation. Packaged in DO-15 (DO-204AC) axial configuration, the SAC7.0-TP is actively produced and RoHS3 compliant. Equivalent and substitute parts are identified based on matching electrical performance parameters and compatible package configurations to support design flexibility and supply chain continuity.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	7	V
Voltage - Breakdown (Min)	8.33	V
Voltage - Clamping (Max) @ Ipp	12.6	V
Current - Peak Pulse (10/1000µs)	38	A
Power - Peak Pulse	500	W
Operating Temperature Range	-55 to 175	°C
Mounting Type	Through Hole	-
Package / Case	DO-204AC, DO-15, Axial	-
Type	Zener	-
Unidirectional Channels	1	-

Substitute Part Grouping Explanation

Substitute parts for the SAC7.0-TP are classified into two categories based on electrical parameter alignment:

Direct Equivalents maintain identical or near-identical electrical specifications across all critical parameters: reverse standoff voltage (7V), breakdown voltage (8.33V minimum), clamping voltage (12.6V maximum), peak pulse current (38A), and peak pulse power (500W). These parts are interchangeable in circuit applications without performance degradation. Direct equivalents include SAC7.0 (Littelfuse Inc.) and SAC7.0-E3/54 (Vishay General Semiconductor).

Similar Substitutes share the same reverse standoff voltage (7V) and operating temperature range but differ in one or more secondary electrical parameters. These parts are suitable for applications where the specific differences in clamping voltage, peak pulse current, or power dissipation do not compromise circuit protection requirements. Similar substitutes include LCE7.0A (Littelfuse Inc.), P6KE8.2A (Taiwan Semiconductor Corporation), and SA7.0A (Taiwan Semiconductor Corporation).

All substitute parts are through-hole mounted in DO-15 or DO-201 package configurations, RoHS3 compliant, and rated for -55°C to 175°C operating temperature.

Parameter Comparison

Part Number	Manufacturer	Reverse Standoff (V)	Breakdown Min (V)	Clamping Max @ Ipp (V)	Peak Pulse Current (A)	Peak Pulse Power (W)	Package	Product Status
SAC7.0-TP	Micro Commercial Co	7	8.33	12.6	38	500	DO-15	Active
SAC7.0	Littelfuse Inc.	7	8.33	12.6	38	500	DO-204AC (DO-15)	Active
SAC7.0-E3/54	Vishay General Semiconductor	7	8.33	12.6	38	500	DO-204AC (DO-15)	Active
LCE7.0A	Littelfuse Inc.	7	7.78	12	100	1500	DO-201	Active
P6KE8.2A	Taiwan Semiconductor Corporation	7.02	7.79	12.1	52	600	DO-204AC (DO-15)	Active
SA7.0A	Taiwan Semiconductor Corporation	7	7.78	12	43	500	DO-204AC (DO-15)	Active

Engineering Selection Recommendations

Direct Equivalents (SAC7.0, SAC7.0-E3/54): These parts provide identical electrical performance to the SAC7.0-TP and are the primary substitutes for direct replacement. All three parts are RoHS3 compliant and actively produced. SAC7.0 (Littelfuse Inc.) offers the highest inventory availability at 4807 units. SAC7.0-E3/54 (Vishay General Semiconductor) is available with 3642 units in stock. Both are suitable for applications requiring no circuit redesign.

Similar Substitutes (SA7.0A, P6KE8.2A, LCE7.0A): These parts share the 7V reverse standoff voltage specification but exhibit variations in secondary parameters. SA7.0A provides the closest match to SAC7.0-TP with 43A peak pulse current (versus 38A) and identical 500W power rating, with exceptional inventory availability at 300,200 units. P6KE8.2A offers 52A peak pulse current and 600W power dissipation in the same DO-15 package, suitable for applications requiring higher transient current handling. LCE7.0A provides the highest power dissipation capability at 1500W with 100A peak pulse current but uses the larger DO-201 package, requiring board layout modification.

All substitute parts maintain the -55°C to 175°C operating temperature range and are RoHS3 compliant, supporting equivalent regulatory and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can SAC7.0 (Littelfuse) be used as a direct replacement for SAC7.0-TP (Micro Commercial Co)?

A: Yes. SAC7.0 is a direct electrical equivalent with identical reverse standoff voltage (7V), breakdown voltage (8.33V minimum), clamping voltage (12.6V maximum), peak pulse current (38A), and peak pulse power (500W). Both use DO-15 package configuration. The primary difference is packaging format: SAC7.0-TP is supplied in Tape & Reel, while SAC7.0 is supplied in Cut Tape.

Q: What is the difference between SAC7.0-E3/54 and SAC7.0?

A: Both parts are direct electrical equivalents with identical performance specifications. SAC7.0-E3/54 is manufactured by Vishay General Semiconductor under the TransZorb® series designation, while SAC7.0 is manufactured by Littelfuse Inc. The "-E3/54" suffix indicates Vishay's packaging and traceability designation. Selection between these parts depends on supplier availability and procurement preferences.

Q: Can SA7.0A replace SAC7.0-TP in all applications?

A: SA7.0A shares the 7V reverse standoff voltage and 500W peak pulse power rating but provides higher peak pulse current capability (43A versus 38A). This makes SA7.0A suitable for applications where the SAC7.0-TP operates near its current limits. The higher current rating provides additional design margin without affecting voltage protection characteristics. Both parts use DO-15 package configuration.

Q: Why does LCE7.0A have different electrical specifications?

A: LCE7.0A is a higher-power variant with 100A peak pulse current and 1500W power dissipation, designed for applications requiring greater transient energy absorption. While it maintains the 7V reverse standoff voltage, it uses the larger DO-201 package instead of DO-15. LCE7.0A is suitable only when circuit board layout can accommodate the larger package and higher power dissipation is required.

Q: What are the package compatibility considerations?

A: SAC7.0-TP, SAC7.0, SAC7.0-E3/54, P6KE8.2A, and SA7.0A all use DO-15 (DO-204AC) axial package configuration and are mechanically interchangeable on standard through-hole PCB layouts. LCE7.0A uses the larger DO-201 package and requires modified board layout with increased lead spacing. Verify PCB footprint compatibility before selecting LCE7.0A as a substitute.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts—SAC7.0, SAC7.0-E3/54, LCE7.0A, P6KE8.2A, and SA7.0A—are RoHS3 compliant and suitable for applications with RoHS regulatory requirements.

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