CDA3S06-G Equivalent & Substitute Parts

Part Overview

The CDA3S06-G is a Transient Voltage Suppressor (TVS) diode manufactured by Comchip Technology in SOT-23-6 surface mount packaging. This steering TVS diode with 4 unidirectional channels is designed for general-purpose transient voltage protection applications. The product is currently obsolete, making equivalent substitute parts necessary for ongoing design support, maintenance, and new production requirements.

Substiute Parts

CDA3S06-G

Comchip TechnologyIn Stock: 1073CDA3S06-G Datasheet

Current PartRFQ

D1213A-04TS-7

Diodes IncorporatedIn Stock: 3188D1213A-04TS-7 Datasheet

MFR RecommendedRFQ

SRV05-4HTG

Littelfuse Inc.In Stock: 105134SRV05-4HTG Datasheet

MFR RecommendedRFQ

TPD4E1U06DBVR

Texas InstrumentsIn Stock: 155326TPD4E1U06DBVR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDA3S06-G are qualified based on the following criteria:

Primary Compatibility Requirements:

• Type: Steering (Rail to Rail) configuration
• Unidirectional Channels: 4 channels
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6 or compatible thin profile variants (TSOT-23-6, TSOT-26)
• Moisture Sensitivity Level: 1 (Unlimited)

Substitution Logic: All three substitute parts maintain the core steering TVS diode architecture with 4 unidirectional channels in surface mount packaging. While specific voltage and current ratings vary across the substitutes, each part operates within the SOT-23-6 family and shares the same functional topology for transient voltage suppression. The substitutes differ in voltage clamping characteristics, peak pulse current handling, and operating temperature ranges, allowing selection based on specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

D1213A-04TS-7 (Diodes Incorporated): This substitute is recommended for applications requiring lower voltage clamping (10V typical) and moderate peak pulse current (1A). The part carries Active product status and includes AEC-Q101 automotive qualification, making it suitable for automotive and industrial applications. The extended operating temperature range (-65°C ~ 150°C) provides thermal margin beyond the original CDA3S06-G specification. RoHS3 compliance is confirmed.

SRV05-4HTG (Littelfuse Inc.): This substitute offers the highest peak pulse current capability (10A) and peak pulse power (150W) among the three options, suitable for applications requiring robust transient suppression. Although marked as Obsolete, it maintains extensive inventory availability (105,100 pcs). The 6V reverse standoff and 15V clamping voltage accommodate higher voltage transient environments. RoHS3 compliance is confirmed.

TPD4E1U06DBVR (Texas Instruments): This substitute is recommended for new designs due to Active product status and broad application support (Ethernet, HDMI). It provides balanced performance with 3A peak pulse current and 45W peak pulse power. The 5.5V reverse standoff and 15V clamping voltage offer mid-range protection characteristics. RoHS3 compliance and REACH Unaffected status are confirmed.

Frequently Asked Questions (FAQ)

Q: Can I directly replace CDA3S06-G with any of these substitutes? A: All three substitutes share the core steering TVS diode topology with 4 unidirectional channels in SOT-23-6 surface mount packaging. Direct PCB-level replacement is possible from a mechanical and pinout perspective. However, verify that the voltage clamping and peak pulse current ratings of your chosen substitute match your circuit's transient voltage and current requirements.

Q: What is the difference between SOT-23-6 and TSOT-23-6 packaging? A: TSOT-23-6 is a thin profile variant of SOT-23-6. The D1213A-04TS-7 is available in both standard SOT-23-6 and thin TSOT-23-6 configurations. Verify PCB footprint compatibility and component height clearance requirements before selection.

Q: Which substitute should I choose for new production? A: For new designs, TPD4E1U06DBVR (Texas Instruments) is preferred due to Active product status, ensuring long-term availability and supply chain stability. D1213A-04TS-7 is also Active and includes automotive qualification if that certification is required.

Q: Are all substitutes RoHS compliant? A: Yes, all three substitutes carry RoHS3 compliance certification. The original CDA3S06-G does not specify RoHS status.

Q: What is the impact of different operating temperature ranges? A: The CDA3S06-G operates from -40°C to 85°C. D1213A-04TS-7 extends to -65°C to 150°C, while SRV05-4HTG and TPD4E1U06DBVR operate to -40°C to 125°C. Select based on your application's thermal environment and any temperature margin requirements.

Q: How do the voltage ratings differ among substitutes? A: D1213A-04TS-7 provides lower voltage protection (3.3V standoff, 10V clamp), suitable for low-voltage signal lines. SRV05-4HTG and TPD4E1U06DBVR offer higher voltage protection (6V and 5.5V standoff respectively, both 15V clamp), suitable for higher voltage transient environments. Select based on your circuit's nominal operating voltage and transient threat level.