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AOZ8000CIL Equivalent & Substitute Parts
Part Overview
The AOZ8000CIL is a transient voltage suppressor (TVS) diode manufactured by Alpha & Omega Semiconductor Inc., designed for Ethernet applications with a 5V reverse standoff voltage and 15V clamping voltage. The device is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. This reference provides engineering-grade alternatives based on electrical and mechanical compatibility parameters.
Substiute Parts
Key Parameters
| Parameter | AOZ8000CIL |
|---|---|
| Manufacturer | Alpha & Omega Semiconductor Inc. |
| Category | Transient Voltage Suppressors (TVS) |
| Type | Steering (Rail to Rail) |
| Unidirectional Channels | 4 |
| Voltage - Reverse Standoff (Typ) | 5V |
| Voltage - Breakdown (Min) | 6.6V |
| Voltage - Clamping (Max) @ Ipp | 15V |
| Current - Peak Pulse (8/20µs) | 5A |
| Power - Peak Pulse | 60W |
| Package / Case | SOT-23-6 |
| Mounting Type | Surface Mount |
| Operating Temperature | -55°C ~ 125°C (TJ) |
| RoHS Status | ROHS3 Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the AOZ8000CIL is determined by the following critical parameters:
Primary Compatibility Criteria:
- Type: Steering (Rail to Rail) with 4 unidirectional channels
- Voltage - Reverse Standoff: 5V nominal
- Voltage - Clamping: 15V maximum at peak pulse current
- Current - Peak Pulse: 5A (8/20µs)
- Package / Case: SOT-23-6 form factor
- Mounting Type: Surface Mount
- RoHS Compliance: ROHS3 Compliant
Substitute parts are grouped into two categories based on electrical performance alignment:
Group 1 - Direct Electrical Equivalents (5V standoff, 15-17V clamping, 5A peak pulse): These parts maintain the same reverse standoff voltage and comparable clamping voltage with equivalent peak pulse current handling. Parts in this group are suitable for direct replacement in Ethernet protection applications.
Group 2 - Functional Alternatives (5-5.5V standoff, lower clamping voltage or peak pulse current): These parts operate within the same voltage class but with reduced clamping voltage or peak pulse current ratings. Selection from this group requires circuit-level verification of protection adequacy.
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff (Typ) | Voltage - Clamping (Max) @ Ipp | Current - Peak Pulse (8/20µs) | Power - Peak Pulse | Package / Case | Operating Temperature | Product Status |
|---|---|---|---|---|---|---|---|---|
| AOZ8000CIL | Alpha & Omega Semiconductor Inc. | 5V | 15V | 5A | 60W | SOT-23-6 | -55°C ~ 125°C (TJ) | Obsolete |
| AOZ8904CIL | Alpha & Omega Semiconductor Inc. | 5.5V (Max) | 18V (Typ) | 4A (8/20µs) | 50W | SOT-23-6 | -40°C ~ 125°C (TJ) | Active |
| DVIULC6-4SC6 | STMicroelectronics | 5V | 17V | 5A (8/20µs) | 80W | SOT-23-6 | -40°C ~ 125°C (TJ) | Active |
| DVIULC6-4SC6Y | STMicroelectronics | 5V | 17V | 5A (8/20µs) | — | SOT-23-6 | -40°C ~ 150°C (TJ) | Active |
| HDMIULC6-4SC6Y | STMicroelectronics | 5V | 17V | 5A (8/20µs) | — | SOT-23-6 | — | Active |
| USBLC6-4SC6Y | STMicroelectronics | 5.25V | 17V | 5A (8/20µs) | — | SOT-23-6 | -40°C ~ 125°C (TJ) | Active |
| D5V0F4U6SO-7 | Diodes Incorporated | 5.5V (Max) | 12V | 3A (8/20µs) | — | SOT-23-6 | -65°C ~ 150°C (TJ) | Active |
| D1213A-04TS-7 | Diodes Incorporated | 3.3V | 10V (Typ) | 1A (8/20µs) | — | SOT-23-6 Thin, TSOT-23-6 | -65°C ~ 150°C (TJ) | Active |
| CM1213A-04SO | onsemi | 3.3V | 10V (Typ) | 1A (8/20µs) | — | SC-74, SOT-457 | -40°C ~ 85°C (TA) | Active |
| SZNUP4114HMR6T1G | onsemi | 5.5V (Max) | 10V | 8A (8/20µs) | — | SOT-23-6 Thin, TSOT-23-6 | -40°C ~ 125°C (TJ) | Active |
| IP4220CZ6,125 | Nexperia USA Inc. | 5.5V (Max) | — | — | — | SC-74, SOT-457 | -40°C ~ 85°C (TA) | Active |
Engineering Selection Recommendations
Primary Recommendation - Direct Replacement: DVIULC6-4SC6 and DVIULC6-4SC6Y (STMicroelectronics) provide the closest electrical match to AOZ8000CIL with identical 5V reverse standoff voltage, 5A peak pulse current, and SOT-23-6 packaging. Both are active products with ROHS3 compliance. DVIULC6-4SC6Y includes automotive qualification (AEC-Q101) and extended operating temperature range (-40°C ~ 150°C), suitable for applications requiring enhanced reliability.
Secondary Recommendation - Voltage Class Match: USBLC6-4SC6Y (STMicroelectronics) maintains 5.25V reverse standoff voltage, 5A peak pulse current, and SOT-23-6 packaging with automotive qualification (AEC-Q101). Clamping voltage is 17V, slightly higher than the original 15V specification.
Alternative for Extended Temperature Range: SZNUP4114HMR6T1G (onsemi) provides 5.5V reverse standoff voltage with higher peak pulse current (8A) and automotive qualification (AEC-Q101). Clamping voltage is 10V, which is lower than the original specification and requires circuit verification.
Not Recommended for Direct Replacement: D1213A-04TS-7, CM1213A-04SO, and D5V0F4U6SO-7 operate at significantly lower voltage ratings (3.3V or 5.5V standoff with 10-12V clamping) and reduced peak pulse current (1-3A), making them unsuitable for direct substitution in 5V Ethernet protection circuits.
Frequently Asked Questions (FAQ)
Q: Can DVIULC6-4SC6Y directly replace AOZ8000CIL in production? A: Yes. Both devices share identical reverse standoff voltage (5V), peak pulse current (5A), and SOT-23-6 packaging. DVIULC6-4SC6Y is an active product with ROHS3 compliance and automotive qualification, making it suitable for direct replacement.
Q: What is the difference between DVIULC6-4SC6 and DVIULC6-4SC6Y? A: Both are STMicroelectronics parts with identical electrical specifications (5V standoff, 17V clamping, 5A peak pulse). DVIULC6-4SC6Y includes automotive qualification (AEC-Q101) and extended operating temperature range (-40°C ~ 150°C) compared to DVIULC6-4SC6 (-40°C ~ 125°C). Packaging differs: DVIULC6-4SC6 uses SOT-23-6, while DVIULC6-4SC6Y uses SOT-23-6L.
Q: Why is clamping voltage higher in substitute parts (17V vs. 15V)? A: Clamping voltage variation within the 15-17V range is typical across TVS diode manufacturers and does not prevent substitution. The higher clamping voltage in DVIULC6-4SC6Y and HDMIULC6-4SC6Y provides additional protection margin while maintaining the same reverse standoff voltage and peak pulse current handling.
Q: Can SZNUP4114HMR6T1G be used as a substitute despite lower clamping voltage (10V)? A: SZNUP4114HMR6T1G has 10V clamping voltage compared to AOZ8000CIL's 15V, which is a significant reduction. This part is suitable only if circuit analysis confirms that 10V clamping is adequate for the protected signal lines. The higher peak pulse current (8A) does not compensate for the lower clamping voltage in Ethernet protection applications.
Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed are ROHS3 compliant, matching the compliance status of AOZ8000CIL.
Q: Which substitute part has the widest operating temperature range? A: DVIULC6-4SC6Y and D5V0F4U6SO-7 both support -40°C ~ 150°C operating temperature range, compared to AOZ8000CIL's -55°C ~ 125°C. D5V0F4U6SO-7 is not recommended for direct replacement due to lower voltage ratings.
Q: What packaging options are available for substitutes? A: Most recommended substitutes (DVIULC6-4SC6, DVIULC6-4SC6Y, HDMIULC6-4SC6Y, USBLC6-4SC6Y) use SOT-23-6 or SOT-23-6L packaging, maintaining compatibility with AOZ8000CIL PCB layouts. Alternative packages (SC-74, TSOT-26, 6-TSOP) require PCB redesign.
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