H11D3 Equivalent & Substitute Parts

Part Overview

The H11D3 is a single-channel optoisolator with transistor output and base connection, manufactured by Isocom Components 2004 LTD. This component provides galvanic isolation between input and output circuits using a 6-DIP through-hole package. The H11D3 maintains active product status with 19,162 units in current inventory. Substitute parts are identified when identical electrical and mechanical parameters are maintained across the H11D series, enabling direct replacement in applications requiring equivalent isolation performance and switching characteristics.

Substiute Parts

H11D3

Isocom Components 2004 LTDIn Stock: 19220H11D3 Datasheet

Current PartRFQ

H11D3X

Isocom Components 2004 LTDIn Stock: 1119H11D3X Datasheet

Parametric EquivalentRFQ

H11D4X

Isocom Components 2004 LTDIn Stock: 1124H11D4X Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the H11D3 are identified based on strict parametric equivalence within the H11D series. The following electrical and mechanical parameters must remain identical for substitution eligibility:

• Number of Channels: 1
• Voltage - Isolation: 7.5Vpk
• Current Transfer Ratio (Min): 20% @ 10mA
• Output Type: Transistor with Base
• Voltage - Output (Max): 200V
• Current - Output / Channel: 100mA
• Voltage - Forward (Vf) (Typ): 1.2V
• Current - DC Forward (If) (Max): 60mA
• Vce Saturation (Max): 400mV
• Turn On / Turn Off Time (Typ): 5µs, 5µs
• Operating Temperature: -55°C ~ 100°C
• Package / Case: 6-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

The H11D3X and H11D4X maintain complete parametric alignment with the H11D3 across all specified electrical characteristics and physical packaging requirements, qualifying them as direct parametric equivalents.

Parameter Comparison

Engineering Selection Recommendations

All three parts—H11D3, H11D3X, and H11D4X—maintain active product status with full ROHS3 compliance and REACH unaffected certification. Selection between these optoisolators should be based on inventory availability and supply chain requirements, as electrical performance and mechanical compatibility are identical across all variants. The H11D3 offers the highest inventory level at 19,162 units, while H11D3X and H11D4X each maintain approximately 1,080 units in stock. All parts are suitable for applications requiring single-channel galvanic isolation with transistor output in 6-DIP through-hole configurations.

Frequently Asked Questions (FAQ)

Q: Can H11D3X or H11D4X be used as direct replacements for H11D3?

A: Yes. H11D3X and H11D4X are parametric equivalents with identical electrical specifications, output characteristics, isolation voltage, current transfer ratio, and 6-DIP package dimensions. Direct substitution is supported without circuit modification.

Q: What determines substitution eligibility for H11D3 optoisolators?

A: Substitution eligibility is determined by matching all critical parameters: single-channel configuration, 7.5Vpk isolation voltage, 20% minimum current transfer ratio at 10mA, transistor with base output type, 200V maximum output voltage, 100mA output current per channel, 1.2V typical forward voltage, 60mA maximum DC forward current, 400mV maximum Vce saturation, 5µs switching times, -55°C to 100°C operating temperature range, and 6-DIP through-hole package format.

Q: Are there any compliance or certification differences between H11D3, H11D3X, and H11D4X?

A: No. All three parts maintain identical ROHS3 compliance status, REACH unaffected designation, MSL Level 1 (unlimited moisture sensitivity), and active product status. Compliance profiles are equivalent across all variants.

Q: What is the significance of the 6-DIP package specification?

A: The 6-DIP (0.300", 7.62mm) package specifies the physical form factor for through-hole mounting on printed circuit boards. All substitute parts use identical package dimensions, ensuring mechanical compatibility with existing PCB layouts and socket configurations.

Q: How do switching times affect optoisolator selection?

A: The H11D3, H11D3X, and H11D4X all specify 5µs turn-on and 5µs turn-off times, establishing identical switching performance. This parameter is critical for applications requiring specific response timing in isolation circuits and must remain constant across substitute selections.