SA7V0A Equivalent & Substitute Parts

Part Overview

The SA7V0A is a 7V Transient Voltage Suppressor (TVS) diode manufactured by onsemi, rated for 12V clamping voltage and 41.7A peak pulse current in a DO-15 through-hole package. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The SA7V0A serves general-purpose transient voltage suppression applications where 7V standoff voltage protection is required.

Key Parameters

Parameter	Value
Manufacturer Part Number	SA7V0A
Manufacturer	onsemi
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Unidirectional Channels	1
Voltage - Reverse Standoff (Typ)	7V
Voltage - Breakdown (Min)	7.78V
Voltage - Clamping (Max) @ Ipp	12V
Current - Peak Pulse (10/1000µs)	41.7A
Power - Peak Pulse	500W
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial
Product Status	Obsolete
Applications	General Purpose
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the SA7V0A is determined by the following critical electrical and mechanical parameters:

Voltage - Reverse Standoff (Typ): 7V ± tolerance
Voltage - Clamping (Max) @ Ipp: 12V maximum
Current - Peak Pulse (10/1000µs): Minimum 41.7A
Power - Peak Pulse: Minimum 500W
Mounting Type: Through Hole
Package / Case: DO-15 or DO-204AC (DO-15) equivalent
Type: Zener diode, unidirectional (1 channel)

Substitute parts are classified into two categories:

Direct Substitutes maintain identical electrical specifications and package compatibility, allowing pin-for-pin replacement without circuit modification.

Similar Substitutes meet the core voltage and current protection requirements but may differ in peak pulse current capacity or package form factor. These require verification of application-specific requirements before implementation.

Parameter Comparison

Parameter	SA7V0A (Main)	SA7.0A-E3/54	SA7.0AHE3/54	LCE7.0A	P5KE7.0A-TP	SA7.0A
Manufacturer	onsemi	Vishay	Vishay	Littelfuse	Micro Commercial Co	Taiwan Semiconductor
Product Status	Obsolete	Active	Active	Active	Active	Active
Voltage - Reverse Standoff (Typ)	7V	7V	7V	7V	7V	7V
Voltage - Breakdown (Min)	7.78V	7.78V	7.78V	7.78V	7.78V	7.78V
Voltage - Clamping (Max) @ Ipp	12V	12V	12V	12V	12V	12V
Current - Peak Pulse (10/1000µs)	41.7A	41.7A	41.7A	100A	41.7A	43A
Power - Peak Pulse	500W	500W	500W	1500W	500W	500W
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AC, DO-15	DO-204AC, DO-15	DO-204AC, DO-15	DO-201AA, DO-27	DO-204AC, DO-15	DO-204AC, DO-15
Operating Temperature	-	-55°C ~ 175°C	-55°C ~ 175°C	-55°C ~ 175°C	-65°C ~ 175°C	-55°C ~ 175°C
RoHS Status	-	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	-	ROHS3 Compliant
Packaging Type	-	Cut Tape (CT)	Tape & Reel (TR)	Cut Tape (CT)	Bulk	Tape & Reel (TR)

Engineering Selection Recommendations

Direct Substitutes (Pin-for-Pin Compatible):

SA7.0A-E3/54 (Vishay): Active product with identical electrical specifications. ROHS3 compliant. Available in Cut Tape packaging. Recommended for new designs requiring standard commercial-grade components.
SA7.0AHE3/54 (Vishay): Active product with identical electrical specifications. ROHS3 compliant. Qualified to AEC-Q101 automotive standard. Available in Tape & Reel packaging. Recommended for automotive applications or designs requiring automotive-grade qualification.
SA7.0A (Taiwan Semiconductor): Active product with 43A peak pulse current (within specification tolerance). ROHS3 compliant. Highest inventory availability (300,200 pcs). Available in Tape & Reel packaging. Suitable for high-volume production requirements.

Similar Substitutes (Functional Equivalents):

LCE7.0A (Littelfuse): Active product with identical voltage specifications. Provides higher peak pulse current (100A) and power dissipation (1500W), offering enhanced transient protection margin. Different package form factor (DO-201 instead of DO-15) requires PCB layout verification. ROHS3 compliant.
P5KE7.0A-TP (Micro Commercial Co): Active product with identical electrical specifications. Extended operating temperature range (-65°C to 175°C). Available in Bulk packaging. Suitable for applications requiring wider temperature performance.

Not Recommended:

P6KE8.2A (Taiwan Semiconductor): While electrically similar, this part specifies 7.02V standoff voltage and 12.1V clamping voltage, which exceeds the SA7V0A maximum clamping specification of 12V. This represents a different voltage class and is not a direct substitute.
LCE6.5A (Littelfuse): Specifies 6.5V standoff voltage, which is below the SA7V0A 7V specification. Not suitable for applications requiring 7V protection threshold.

Frequently Asked Questions (FAQ)

Q: Can SA7.0A-E3/54 be used as a direct replacement for SA7V0A?

A: Yes. SA7.0A-E3/54 maintains identical voltage standoff (7V), breakdown (7.78V), clamping (12V), and peak pulse current (41.7A) specifications. Both use DO-15 through-hole packages. Pin-for-pin substitution is valid without circuit modification.

Q: What is the difference between SA7.0AHE3/54 and SA7.0A-E3/54?

A: Both parts are electrically identical. SA7.0AHE3/54 is qualified to AEC-Q101 automotive standard and supplied in Tape & Reel packaging, while SA7.0A-E3/54 is supplied in Cut Tape packaging. Select SA7.0AHE3/54 for automotive applications or when automotive-grade qualification is required.

Q: Why is LCE7.0A listed as a similar substitute rather than a direct substitute?

A: LCE7.0A uses a DO-201 package instead of the DO-15 package specified for SA7V0A. While electrical specifications are identical, the different package form factor (DO-201 vs. DO-15) requires PCB layout verification. LCE7.0A also provides higher peak pulse current (100A vs. 41.7A) and power dissipation (1500W vs. 500W), which may affect thermal design considerations.

Q: Can P6KE8.2A replace SA7V0A?

A: No. P6KE8.2A specifies 7.02V standoff voltage and 12.1V maximum clamping voltage. The 12.1V clamping voltage exceeds the SA7V0A maximum specification of 12V, placing it in a different voltage class. This part is not suitable for applications designed around SA7V0A specifications.

Q: What does "ROHS3 Compliant" mean for TVS diode selection?

A: ROHS3 Compliant indicates the part meets Restriction of Hazardous Substances Directive 3 requirements, confirming the absence of restricted substances (lead, cadmium, hexavalent chromium, etc.). This is a regulatory compliance requirement for many markets and applications.

Q: Is operating temperature range important for TVS diode substitution?

A: Operating temperature range affects component reliability in specific environments. SA7V0A does not specify operating temperature. Active substitutes specify -55°C to 175°C (standard) or -65°C to 175°C (P5KE7.0A-TP). For applications operating outside standard temperature ranges, verify the substitute part's temperature specification matches application requirements.

Q: What is the significance of peak pulse current (41.7A vs. 43A vs. 100A)?

A: Peak pulse current indicates the maximum transient current the TVS diode can suppress. SA7V0A is rated for 41.7A. SA7.0A provides 43A (within tolerance), while LCE7.0A provides 100A. Higher peak pulse current provides greater transient suppression capability. For applications with transient currents exceeding 41.7A, select a substitute with higher peak pulse current rating.

Q: Can I use SA7.0A in place of SA7V0A for new production?

A: Yes. SA7.0A (Taiwan Semiconductor) is an active product with 43A peak pulse current, meeting SA7V0A specifications. It offers the highest inventory availability and is suitable for new production designs. Verify packaging requirements (Tape & Reel vs. Cut Tape) match your assembly process.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message