H11D1SD Optoisolator Equivalent & Substitute Parts

Part Overview

The H11D1SD is a 5300Vrms optoisolator transistor with base output manufactured by onsemi in a 6-SMD surface mount package. This component provides galvanic isolation for DC input signals with transistor output capability, supporting up to 100mA output current and 300V maximum output voltage. The H11D1SD is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Active alternatives from onsemi, Vishay Semiconductor Opto Division, and Lite-On Inc. provide functional equivalence with maintained or improved specifications.

Key Parameters

Parameter	Value
Voltage - Isolation	5300Vrms
Number of Channels	1
Current Transfer Ratio (Min)	20% @ 10mA
Turn On / Turn Off Time (Typ)	5µs, 5µs
Output Type	Transistor with Base
Voltage - Output (Max)	300V
Current - Output / Channel	100mA
Vce Saturation (Max)	400mV
Operating Temperature	-55°C ~ 100°C
Package / Case	6-SMD, Gull Wing
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the H11D1SD are grouped based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

Voltage - Isolation: 5300Vrms (exact match required for high-voltage isolation applications)
Output Type: Transistor with Base (functional output configuration)
Package / Case: 6-SMD, Gull Wing (mechanical and electrical compatibility)
Current - Output / Channel: 100mA (load handling capability)
Voltage - Output (Max): 300V (maximum switching voltage)
Operating Temperature Range: -55°C ~ 100°C (thermal compatibility)

Secondary Compatibility Parameters:

Current Transfer Ratio (Min): 20% @ 10mA (switching performance)
Vce Saturation (Max): 400mV (saturation characteristics)
Moisture Sensitivity Level: 1 (Unlimited) (handling and storage)

Parts meeting all primary criteria are direct substitutes. The H11D1SR2M variant operates at reduced isolation voltage (4170Vrms) and represents a downgrade suitable only for applications not requiring full 5300Vrms isolation.

Parameter Comparison

Part Number	Manufacturer	Voltage - Isolation	Current Transfer Ratio (Min)	Turn On / Turn Off Time (Typ)	Voltage - Output (Max)	Current - Output / Channel	Vce Saturation (Max)	Operating Temperature	Product Status	Packaging
H11D1SD	onsemi	5300Vrms	20% @ 10mA	5µs, 5µs	300V	100mA	400mV	-55°C ~ 100°C	Obsolete	6-SMD
H11D1-X007T	Vishay Semiconductor Opto Division	5300Vrms	20% @ 10mA	5µs, 6µs	300V	100mA	400mV	-55°C ~ 100°C	Active	Tape & Reel (TR)
H11D1-X009T	Vishay Semiconductor Opto Division	5300Vrms	20% @ 10mA	5µs, 6µs	300V	100mA	400mV	-55°C ~ 100°C	Active	Tape & Reel (TR)
H11D1-X009	Vishay Semiconductor Opto Division	5300Vrms	20% @ 10mA	5µs, 6µs	300V	100mA	400mV	-55°C ~ 100°C	Active	Tube
H11D1-X007	Vishay Semiconductor Opto Division	5300Vrms	20% @ 10mA	5µs, 6µs	300V	100mA	400mV	-55°C ~ 100°C	Active	Tube
H11D1S	onsemi	5300Vrms	20% @ 10mA	5µs, 5µs	300V	100mA	400mV	-55°C ~ 100°C	Obsolete	6-SMD
H11D1S-TA	Lite-On Inc.	5000Vrms	20% @ 10mA	—	300V	100mA	400mV	-55°C ~ 100°C	Active	Tape & Reel (TR)
H11D1S-TA1	Lite-On Inc.	5000Vrms	20% @ 10mA	—	300V	100mA	400mV	-55°C ~ 100°C	Active	Tape & Reel (TR)
H11D1SMT&R	Isocom Components 2004 LTD	5300Vrms	20% @ 10mA	5µs, 5µs	300V	100mA	400mV	-55°C ~ 100°C	Active	Tape & Reel (TR)
H11D1SM	onsemi	4170Vrms	20% @ 10mA	5µs, 5µs	300V	100mA	400mV	-40°C ~ 100°C	Active	Tube
H11D1SR2M	onsemi	4170Vrms	20% @ 10mA	5µs, 5µs	300V	100mA	400mV	-40°C ~ 100°C	Active	Tube

Engineering Selection Recommendations

Direct Substitutes (5300Vrms Isolation):

The following parts provide full functional equivalence to the H11D1SD with active product status:

H11D1-X009T (Vishay Semiconductor Opto Division, Tape & Reel): Highest inventory availability (41,201 pcs). RoHS3 compliant. Identical isolation voltage and output specifications. Recommended for high-volume production.
H11D1-X007T (Vishay Semiconductor Opto Division, Tape & Reel): 974 pcs available. RoHS3 compliant. Equivalent performance with tape & reel packaging for automated assembly.
H11D1SMT&R (Isocom Components 2004 LTD, Tape & Reel): 937 pcs available. RoHS3 compliant. Maintains 5300Vrms isolation with active status.
H11D1-X009 (Vishay Semiconductor Opto Division, Tube): 1,112 pcs available. RoHS3 compliant. Tube packaging alternative for manual assembly or lower-volume applications.
H11D1-X007 (Vishay Semiconductor Opto Division, Tube): 2,384 pcs available. RoHS3 compliant. Tube packaging option.

Reduced Isolation Alternatives (4170Vrms Isolation):

These parts operate at lower isolation voltage and are suitable only for applications not requiring 5300Vrms isolation:

H11D1SM (onsemi, Tube): 12,620 pcs available. RoHS3 compliant. Reduced isolation voltage with active status.
H11D1SR2M (onsemi, Tape & Reel): 1,887 pcs available. RoHS3 compliant. Reduced isolation voltage with tape & reel packaging.

Partial Equivalents (Obsolete Status):

H11D1S (onsemi): 4,700 pcs available. Obsolete status. Identical specifications to H11D1SD but no longer in active production.

Frequently Asked Questions (FAQ)

Q: Can H11D1SM or H11D1SR2M replace H11D1SD in my application?

A: Only if your circuit design does not require 5300Vrms isolation voltage. These parts operate at 4170Vrms, representing a 21% reduction in isolation capability. Verify your isolation requirements before substitution.

Q: What is the difference between tape & reel and tube packaging?

A: Tape & reel packaging is optimized for automated pick-and-place assembly in high-volume production. Tube packaging is suitable for manual assembly or lower-volume applications. Both packaging formats contain identical components.

Q: Are all substitute parts RoHS3 compliant?

A: All active substitute parts listed (H11D1-X007, H11D1-X007T, H11D1-X009, H11D1-X009T, H11D1SMT&R, H11D1SM, H11D1SR2M, H11D1S-TA, H11D1S-TA1) are RoHS3 compliant. The original H11D1SD does not specify RoHS status.

Q: Which substitute offers the best inventory availability?

A: H11D1-X009T from Vishay Semiconductor Opto Division has the highest inventory with 41,201 pcs in stock and maintains full 5300Vrms isolation equivalence.

Q: Can I use H11D1S-TA or H11D1S-TA1 from Lite-On as direct replacements?

A: These parts are functionally equivalent at the 5000Vrms isolation level, which is lower than the H11D1SD specification of 5300Vrms. They are suitable substitutes only if your application tolerates this reduced isolation voltage.

Q: What is the operating temperature difference between H11D1SD and H11D1SM?

A: H11D1SD operates from -55°C to 100°C. H11D1SM operates from -40°C to 100°C, providing a narrower low-temperature range. Verify your minimum operating temperature requirement before substitution.

Q: Are there any differences in switching speed between the main part and substitutes?

A: H11D1SD specifies turn-on/turn-off times of 5µs/5µs. Vishay parts (H11D1-X007, H11D1-X007T, H11D1-X009, H11D1-X009T) specify 5µs/6µs. Both meet the same functional switching performance for typical applications.

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