H11AA3SVM Equivalent & Substitute Parts

Part Overview

The H11AA3SVM is an optoisolator transistor with base output manufactured by onsemi, designed for galvanic isolation applications requiring 7500Vpk isolation voltage. This component features a single channel with transistor output and base connection, housed in a 6-SMD surface mount package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	H11AA3SVM
Manufacturer	onsemi
Category	Optoisolators
Product Status	Obsolete
Number of Channels	1
Voltage - Isolation	7500Vpk
Current Transfer Ratio (Min)	50% @ 10mA
Output Type	Transistor with Base
Voltage - Output (Max)	30V
Current - Output / Channel	50mA
Voltage - Forward (Vf) (Typ)	1.17V
Current - DC Forward (If) (Max)	60 mA
Vce Saturation (Max)	400mV
Operating Temperature	-40°C ~ 100°C
Mounting Type	Surface Mount
Package / Case	6-SMD, Gull Wing
Input Type	AC, DC
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the H11AA3SVM is determined by the following critical parameters:

Isolation Voltage: Minimum 7500Vpk or equivalent Vrms rating
Output Configuration: Transistor with Base output required
Number of Channels: Single channel only
Package Type: 6-SMD, Gull Wing surface mount
Current Transfer Ratio: Minimum 50% @ 10mA
Output Voltage Rating: Maximum 30V
Output Current: 50mA per channel
Input Type: AC, DC compatible
Vce Saturation: Maximum 400mV
Operating Temperature Range: -40°C to 100°C minimum

Substitute parts must maintain compatibility across all these parameters. Parts with lower isolation voltage ratings, different output configurations, or incompatible package types are not suitable replacements.

Parameter Comparison

Parameter	H11AA3SVM (Main)	H11AA4SVM	H11AA1-X007T	H11AA3SM	H11AA3SMT&R	IL252-X007T
Manufacturer	onsemi	Fairchild Semiconductor	Vishay Semiconductor Opto Division	onsemi	Isocom Components 2004 LTD	Vishay Semiconductor Opto Division
Product Status	Obsolete	Active	Active	Obsolete	Active	Active
Voltage - Isolation	7500Vpk	4170Vrms	5300Vrms	7500Vpk	7.5Vpk	5300Vrms
Current Transfer Ratio (Min)	50% @ 10mA	100% @ 10mA	20% @ 10mA	50% @ 10mA	50% @ 10mA	100% @ 10mA
Output Type	Transistor with Base	Transistor with Base	Transistor with Base	Transistor with Base	Transistor with Base	Transistor with Base
Voltage - Output (Max)	30V	30V	30V	30V	35V	30V
Current - Output / Channel	50mA	50mA	-	50mA	50mA	-
Voltage - Forward (Vf) (Typ)	1.17V	1.17V	1.2V	1.17V	1.2V	1.2V
Current - DC Forward (If) (Max)	60 mA	60 mA	60 mA	60 mA	50 mA	60 mA
Vce Saturation (Max)	400mV	400mV	400mV	400mV	400mV	400mV
Operating Temperature	-40°C ~ 100°C	-40°C ~ 100°C	-55°C ~ 100°C	-40°C ~ 100°C	-30°C ~ 100°C	-55°C ~ 100°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	6-SMD, Gull Wing	6-SMD, Gull Wing	6-SMD, Gull Wing	6-SMD, Gull Wing	6-SMD, Gull Wing	6-SMD, Gull Wing
Input Type	AC, DC	AC, DC	AC, DC	AC, DC	AC, DC	AC, DC
Packaging	-	Bulk	Tape & Reel (TR)	-	Tape & Reel (TR)	Tape & Reel (TR)
RoHS Status	-	-	ROHS3 Compliant	-	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

H11AA3SM (onsemi): Direct functional equivalent with identical isolation voltage (7500Vpk), current transfer ratio (50% @ 10mA), and thermal operating range (-40°C ~ 100°C). Both parts are obsolete status. This substitute maintains full parameter compatibility for applications currently using H11AA3SVM.

H11AA3SMT&R (Isocom Components 2004 LTD): Functionally equivalent with matching isolation voltage (7.5Vpk), current transfer ratio (50% @ 10mA), and output specifications. Active product status provides ongoing availability. RoHS3 compliance offers regulatory advantage. Operating temperature range (-30°C ~ 100°C) is narrower at the lower bound. This substitute is suitable for new designs and production continuity.

H11AA4SVM (Fairchild Semiconductor): Active product with higher current transfer ratio (100% @ 10mA) compared to the main part (50% @ 10mA). Isolation voltage is lower at 4170Vrms versus 7500Vpk. This substitute is applicable only in applications where the lower isolation voltage is acceptable and the enhanced current transfer ratio is beneficial.

IL252-X007T (Vishay Semiconductor Opto Division): Active product with isolation voltage of 5300Vrms, below the main part specification of 7500Vpk. Higher current transfer ratio (100% @ 10mA) and extended operating temperature range (-55°C ~ 100°C). RoHS3 compliant. This substitute is suitable only for applications with reduced isolation voltage requirements.

H11AA1-X007T (Vishay Semiconductor Opto Division): Active product with isolation voltage of 5300Vrms and lower current transfer ratio (20% @ 10mA). Extended operating temperature range (-55°C ~ 100°C) and RoHS3 compliance. This substitute is applicable only in applications where isolation voltage can be reduced and lower current transfer ratio is acceptable.

Frequently Asked Questions (FAQ)

Q: Can H11AA3SVM be directly replaced with H11AA4SVM?

A: H11AA4SVM has a lower isolation voltage rating (4170Vrms) compared to H11AA3SVM (7500Vpk). Direct substitution is only valid if the application circuit does not require the full 7500Vpk isolation specification. The higher current transfer ratio of H11AA4SVM (100% @ 10mA) may provide improved performance in circuits designed for the lower isolation voltage.

Q: What is the primary difference between H11AA3SVM and H11AA3SM?

A: Both parts are manufactured by onsemi with identical electrical specifications: 7500Vpk isolation voltage, 50% current transfer ratio @ 10mA, and -40°C ~ 100°C operating range. Both are classified as obsolete. The parts are functionally interchangeable for all applications.

Q: Are the Vishay parts (IL252-X007T and H11AA1-X007T) suitable replacements?

A: Both Vishay parts have lower isolation voltage ratings (5300Vrms) than the H11AA3SVM (7500Vpk). They are suitable only if the application circuit can operate with reduced isolation voltage. IL252-X007T offers higher current transfer ratio (100% @ 10mA), while H11AA1-X007T has lower current transfer ratio (20% @ 10mA). Both are active products with RoHS3 compliance.

Q: Does H11AA3SMT&R from Isocom provide full compatibility?

A: H11AA3SMT&R maintains the same isolation voltage (7.5Vpk), current transfer ratio (50% @ 10mA), and output specifications as H11AA3SVM. The operating temperature range is narrower (-30°C ~ 100°C versus -40°C ~ 100°C). This part is active and RoHS3 compliant, making it suitable for production continuity and new designs where the temperature range is acceptable.

Q: What packaging options are available for these substitutes?

A: H11AA3SVM and H11AA3SM are available in standard packaging. H11AA3SMT&R, IL252-X007T, and H11AA1-X007T are supplied in Tape & Reel (TR) format. H11AA4SVM is available in Bulk packaging. All parts use 6-SMD, Gull Wing surface mount package configuration.

Q: Which substitute has the best product status for new designs?

A: H11AA3SMT&R, H11AA4SVM, IL252-X007T, and H11AA1-X007T are all classified as active products. H11AA3SM and the main part H11AA3SVM are obsolete. For new designs requiring long-term availability, active products are preferred. H11AA3SMT&R provides the closest functional match to H11AA3SVM among active alternatives.

Q: Are there RoHS compliance differences between these parts?

A: H11AA3SMT&R, IL252-X007T, and H11AA1-X007T are RoHS3 compliant. H11AA3SVM, H11AA3SM, and H11AA4SVM do not list RoHS status in the provided specifications. For applications requiring RoHS compliance, the Isocom and Vishay alternatives are suitable.

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