Equivalent & Substitute Parts for Würth Elektronik 824013 TVS Diode

Part Overview

The Würth Elektronik 824013 is a transient voltage suppressor (TVS) diode in SOT-23-6L surface mount package, designed for general-purpose power line protection applications. This part features a 3.3V reverse standoff voltage with 6V typical clamping voltage and 12A peak pulse current capability. The product status is obsolete, necessitating identification of functionally equivalent alternatives that maintain compatibility with existing circuit designs while meeting current availability and compliance requirements.

Substiute Parts

824013
Würth ElektronikIn Stock: 4158824013 Datasheet
824013
Current Part
824015043
Würth ElektronikIn Stock: 6305824015043 Datasheet
824015043
MFR Recommended
D1213A-04TS-7
Diodes IncorporatedIn Stock: 3188D1213A-04TS-7 Datasheet
D1213A-04TS-7
MFR Recommended
DVIULC6-4SC6
STMicroelectronicsIn Stock: 44147DVIULC6-4SC6 Datasheet
DVIULC6-4SC6
MFR Recommended
DVIULC6-4SC6Y
STMicroelectronicsIn Stock: 34507DVIULC6-4SC6Y Datasheet
DVIULC6-4SC6Y
MFR Recommended
HDMIULC6-4SC6Y
STMicroelectronicsIn Stock: 34641HDMIULC6-4SC6Y Datasheet
HDMIULC6-4SC6Y
MFR Recommended
SZCM1213A-04SO
onsemiIn Stock: 3079SZCM1213A-04SO Datasheet
SZCM1213A-04SO
MFR Recommended
USBLC6-4SC6Y
STMicroelectronicsIn Stock: 44525USBLC6-4SC6Y Datasheet
USBLC6-4SC6Y
MFR Recommended

Key Parameters

Parameter Value
Manufacturer Part Number 824013
Manufacturer Würth Elektronik
Category Transient Voltage Suppressors (TVS)
Type Steering (Rail to Rail)
Unidirectional Channels 4
Voltage - Reverse Standoff (Typ) 3.3V (Max)
Voltage - Breakdown (Min) 4.5V
Voltage - Clamping (Max) @ Ipp 6V (Typ)
Current - Peak Pulse (8/20µs) 12A
Power Line Protection Yes
Mounting Type Surface Mount
Package / Case SOT-23-6
Operating Temperature -55°C ~ 125°C (TJ)
RoHS Status ROHS3 Compliant
Product Status Obsolete

Substitute Part Grouping Explanation

Substitution of the Würth Elektronik 824013 is determined by the following critical parameters:

Primary Compatibility Criteria:

  • Reverse standoff voltage: 3.3V maximum
  • Breakdown voltage minimum: 4.5V or higher
  • Clamping voltage: 6V to 10V range
  • Peak pulse current: minimum 1A (8/20µs)
  • Unidirectional channels: 4
  • Steering type: Rail to Rail
  • Surface mount package: SOT-23-6 or equivalent footprint
  • Power line protection capability: Required

Substitution Logic: Parts are grouped into two categories based on electrical performance and package compatibility. Category A includes active Würth Elektronik and STMicroelectronics parts with higher current ratings (5A to 30A) and clamping voltages of 10V to 17V, suitable for applications requiring enhanced transient suppression. Category B includes lower current rated parts (1A) from Diodes Incorporated and onsemi with 10V clamping voltage, appropriate for lower-power signal line protection where the 12A capability of the original part exceeds circuit requirements.

Parameter Comparison

Part Number Manufacturer Reverse Standoff (V) Breakdown Min (V) Clamping (V) Peak Pulse Current (A) Package Status Channels
824013 Würth Elektronik 3.3 4.5 6 12 SOT-23-6L Obsolete 4
824015043 Würth Elektronik 3.3 4.5 10 30 SOT-23-6 Active 4
D1213A-04TS-7 Diodes Incorporated 3.3 6 10 1 TSOT-26 Active 4
DVIULC6-4SC6 STMicroelectronics 5 6 17 5 SOT-23-6 Active 4
DVIULC6-4SC6Y STMicroelectronics 5 6 17 5 SOT-23-6L Active 4
HDMIULC6-4SC6Y STMicroelectronics 5 6 17 5 SOT-23-6L Active 4
SZCM1213A-04SO onsemi 3.3 6 10 1 SC-74 Active 4
USBLC6-4SC6Y STMicroelectronics 5.25 6 17 5 SOT-23-6 Active 4

Engineering Selection Recommendations

Direct Replacement (Highest Compatibility): The Würth Elektronik 824015043 is the manufacturer-recommended successor, maintaining identical reverse standoff voltage (3.3V) and breakdown voltage (4.5V) specifications while offering enhanced performance with 30A peak pulse current and 10V clamping voltage. This part is active and ROHS3 compliant with identical operating temperature range (-55°C to 125°C). The SOT-23-6 package is footprint-compatible with the original SOT-23-6L.

Alternative with Matched Voltage Specifications: The Diodes Incorporated D1213A-04TS-7 maintains the 3.3V reverse standoff voltage and provides 10V clamping voltage with 1A peak pulse current. This part is AEC-Q101 qualified automotive grade with extended operating temperature range (-65°C to 150°C) and superior moisture sensitivity level (MSL 1). The TSOT-26 package requires PCB layout verification for footprint compatibility.

Higher Voltage Alternatives (Circuit Redesign Required): STMicroelectronics parts DVIULC6-4SC6Y, HDMIULC6-4SC6Y, and USBLC6-4SC6Y feature 5V to 5.25V reverse standoff voltage with 17V clamping voltage and 5A peak pulse current. These parts are active, AEC-Q101 qualified, and suitable for applications where higher voltage suppression is acceptable. The DVIULC6-4SC6Y and HDMIULC6-4SC6Y are available in SOT-23-6L package matching the original footprint.

Lower Current Alternative: The onsemi SZCM1213A-04SO provides 3.3V reverse standoff voltage with 10V clamping and 1A peak pulse current in SC-74 package. This part is AEC-Q101 qualified with operating temperature range of -40°C to 85°C, suitable for applications where the original 12A capability exceeds requirements.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 824015043 directly replace the obsolete 824013? A: Yes. The 824015043 maintains identical voltage specifications (3.3V reverse standoff, 4.5V breakdown) and is the manufacturer-recommended replacement. The SOT-23-6 package is footprint-compatible with SOT-23-6L. Higher current rating (30A vs 12A) provides enhanced transient suppression capability without circuit modification.

Q: What is the difference between SOT-23-6 and SOT-23-6L packaging? A: SOT-23-6L denotes tape and reel packaging format, while SOT-23-6 indicates cut tape or alternative reel format. Both use identical SOT-23-6 footprint dimensions. Selection depends on procurement and assembly requirements rather than electrical performance.

Q: Can STMicroelectronics DVIULC6-4SC6Y or HDMIULC6-4SC6Y be used as direct substitutes? A: These parts are electrically compatible in terms of package and channel configuration but feature higher reverse standoff voltage (5V vs 3.3V) and clamping voltage (17V vs 6V). They are suitable only if circuit design permits higher voltage suppression thresholds. Both are AEC-Q101 qualified and available in SOT-23-6L package.

Q: What are the implications of using the Diodes Incorporated D1213A-04TS-7? A: This part maintains 3.3V reverse standoff voltage but uses TSOT-26 package instead of SOT-23-6L, requiring PCB layout verification. Peak pulse current is reduced to 1A, suitable only for low-power signal line applications. Operating temperature range extends to 150°C with superior moisture sensitivity (MSL 1).

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Which substitute offers the best automotive qualification? A: The Diodes Incorporated D1213A-04TS-7, STMicroelectronics DVIULC6-4SC6Y, HDMIULC6-4SC6Y, USBLC6-4SC6Y, and onsemi SZCM1213A-04SO are all AEC-Q101 qualified for automotive applications. The STMicroelectronics parts offer the highest current rating (5A) with automotive qualification.

Q: What is the minimum peak pulse current required for substitution? A: The original 824013 specifies 12A (8/20µs). Substitutes with lower ratings (1A) are acceptable only if circuit analysis confirms transient energy levels remain within the lower device capability. Higher-rated substitutes (5A to 30A) provide margin without circuit modification.

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