SI8630BT-IS Digital Isolator Equivalent & Substitute Parts

Part Overview

The SI8630BT-IS is a general purpose digital isolator manufactured by Skyworks Solutions Inc., featuring 5000Vrms isolation voltage with 3 channels and 150Mbps data rate capability. This capacitive coupling technology isolator is designed for applications requiring high-speed signal isolation in industrial and automotive environments. The part is currently in active production status with 954 units available in stock. Alternative models may be required when application constraints demand different channel configurations, CMTI specifications, or inventory availability.

Substiute Parts

SI8630BT-IS

Skyworks Solutions Inc.In Stock: 983SI8630BT-IS Datasheet

Current PartRFQ

SI8610BD-B-IS

Skyworks Solutions Inc.In Stock: 1335SI8610BD-B-IS Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The SI8610BD-B-IS qualifies as a parametric equivalent based on the following shared electrical and mechanical specifications:

Matching Parameters:

• Isolation voltage: 5000Vrms (identical)
• Data rate: 150Mbps (identical)
• Supply voltage range: 2.5V ~ 5.5V (identical)
• Operating temperature range: -40°C ~ 125°C (identical)
• Package type: 16-SOIC (0.295", 7.50mm Width) (identical)
• Technology: Capacitive coupling (identical)
• Propagation delay: 13ns maximum for both tpLH and tpHL (identical)
• Pulse width distortion: 4.5ns maximum (identical)
• Rise/fall time: 2.5ns typical (identical)
• Moisture sensitivity level: 2A (4 Weeks) (identical)

Differing Parameters:

• Number of channels: SI8630BT-IS has 3 channels; SI8610BD-B-IS has 1 channel
• Common mode transient immunity: SI8630BT-IS specifies 60kV/µs; SI8610BD-B-IS specifies 35kV/µs

Substitution is valid when application requirements permit reduced channel count and lower CMTI specification.

Parameter Comparison

Engineering Selection Recommendations

Both SI8630BT-IS and SI8610BD-B-IS maintain active product status from Skyworks Solutions Inc. and share identical compliance certifications (ECCN: EAR99, HTSUS: 8542.39.0001). The SI8610BD-B-IS carries additional RoHS3 compliance and REACH unaffected status documentation.

Selection between these parts depends on application channel requirements. The SI8630BT-IS provides three isolated channels within a single 16-SOIC package, suitable for applications requiring multiple simultaneous signal isolations. The SI8610BD-B-IS provides single-channel isolation and is appropriate for applications requiring only one isolated signal path. The 25kV/µs difference in CMTI specification (60kV/µs versus 35kV/µs) must be evaluated against specific noise environment and transient immunity requirements of the target application.

Frequently Asked Questions (FAQ)

Q: Can SI8610BD-B-IS replace SI8630BT-IS in all applications?

A: No. The SI8610BD-B-IS provides only 1 isolated channel compared to the 3 channels in SI8630BT-IS. Substitution is valid only when the application requires single-channel isolation. Additionally, the lower CMTI specification (35kV/µs versus 60kV/µs) must be compatible with the application's noise environment.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use 16-SOIC (0.295", 7.50mm Width) packaging with identical pin configurations for the shared signal lines. PCB layout compatibility is maintained for the common pins.

Q: What is the significance of the CMTI difference?

A: Common Mode Transient Immunity (CMTI) specifies the maximum rate of voltage change the isolator can tolerate on the isolated side without causing errors. The SI8630BT-IS tolerates 60kV/µs while SI8610BD-B-IS tolerates 35kV/µs. Applications with high-speed switching or severe EMI environments may require the higher CMTI rating.

Q: Do both parts support the same supply voltage range?

A: Yes. Both SI8630BT-IS and SI8610BD-B-IS operate with supply voltage from 2.5V to 5.5V and maintain identical propagation delay, rise/fall time, and pulse width distortion specifications across this range.

Q: What compliance certifications apply to both parts?

A: Both parts carry EAR99 ECCN classification and HTSUS code 8542.39.0001. The SI8610BD-B-IS additionally documents RoHS3 compliance and REACH unaffected status.