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5KP24CA-B Equivalent & Substitute Parts
Part Overview
The 5KP24CA-B is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse, designed for general-purpose transient protection applications. This through-hole component operates with a 24V reverse standoff voltage and provides 5000W peak pulse power dissipation. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Reverse Standoff (Typ) | 24V |
| Voltage - Breakdown (Min) | 26.7V |
| Voltage - Clamping (Max) @ Ipp | 38.9V |
| Current - Peak Pulse (10/1000µs) | 131.1A |
| Power - Peak Pulse | 5000W (5kW) |
| Mounting Type | Through Hole |
| Package / Case | P600, Axial |
| Operating Temperature Range | -55°C ~ 175°C (TJ) |
| Type | Zener |
| Bidirectional Channels | 1 |
Substitute Part Grouping Explanation
Substitution eligibility for the 5KP24CA-B is determined by matching the following critical electrical and mechanical parameters:
- Voltage - Reverse Standoff: 24V
- Voltage - Breakdown (Min): 26.7V
- Voltage - Clamping (Max) @ Ipp: 38.9V
- Current - Peak Pulse (10/1000µs): 131.1A or equivalent
- Power - Peak Pulse: 5000W (5kW)
- Mounting Type: Through Hole
- Operating Temperature Range: -55°C ~ 175°C (TJ)
- Bidirectional Channels: 1
- Type: Zener
Substitute parts are grouped by packaging configuration and manufacturer. All identified substitutes maintain identical electrical performance specifications and thermal operating range. Packaging differences (P600 vs. R-6 case styles) and tape/bulk configurations represent the primary distinctions among qualified alternatives.
Parameter Comparison
| Parameter | 5KP24CA-B (Main) | SLD24-018 | 5KP24CA | 5KP24CA-TP |
|---|---|---|---|---|
| Manufacturer | Littelfuse | Littelfuse Inc. | Littelfuse Inc. | Micro Commercial Co |
| Voltage - Reverse Standoff (Typ) | 24V | 24V | 24V | 24V |
| Voltage - Breakdown (Min) | 26.7V | 26.7V | 26.7V | 26.7V |
| Voltage - Clamping (Max) @ Ipp | 38.9V | 38.9V | 38.9V | 38.9V |
| Current - Peak Pulse (10/1000µs) | 131.1A | 131.1A | 131.1A | Not specified |
| Power - Peak Pulse | 5000W (5kW) | 5000W (5kW) | 5000W (5kW) | 5000W (5kW) |
| Operating Temperature Range | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | P600, Axial | P600, Axial | P600, Axial | R-6, Axial |
| Packaging Configuration | Bulk | Cut Tape (CT) | Cut Tape (CT) | Cut Tape (CT) |
| Product Status | Active | Active | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Type | Zener | Zener | Zener | Zener |
| Bidirectional Channels | 1 | 1 | 1 | 1 |
Engineering Selection Recommendations
All identified substitute parts maintain active product status and full RoHS3 compliance. Selection among qualified alternatives should be based on packaging requirements and supply availability:
5KP24CA (Littelfuse Inc., Cut Tape): Manufacturer-recommended equivalent with identical P600 package configuration. Suitable for automated assembly processes requiring tape packaging.
SLD24-018 (Littelfuse Inc., Cut Tape): Automotive-grade alternative with AEC-Q101 qualification. Identical electrical and thermal specifications with P600 package. REACH status differs (Affected vs. Unaffected); verify regulatory requirements for end application.
5KP24CA-TP (Micro Commercial Co, Cut Tape): Alternative source with R-6 package configuration. Electrical performance equivalent; package footprint differs from P600. Peak pulse current specification not provided in documentation; confirm compatibility with application requirements before selection.
Frequently Asked Questions (FAQ)
Q: Can 5KP24CA-B be directly replaced with SLD24-018? A: Yes. Both parts share identical electrical specifications (24V standoff, 38.9V clamping, 131.1A peak pulse, 5000W power dissipation), operating temperature range, and P600 axial package configuration. The primary difference is packaging format (bulk vs. cut tape) and automotive qualification of SLD24-018.
Q: What is the difference between P600 and R-6 packages? A: Both are axial through-hole packages for TVS diodes. P600 and R-6 represent different case styles with potentially different physical dimensions and lead configurations. Verify PCB footprint compatibility before substituting 5KP24CA-TP (R-6 package) for the original P600-packaged part.
Q: Are all substitutes RoHS3 compliant? A: Yes. All identified substitute parts carry RoHS3 Compliant status. However, SLD24-018 has REACH Affected status, while 5KP24CA-B and 5KP24CA have REACH Unaffected status. Confirm REACH compliance requirements for your specific application and end market.
Q: Which substitute is best for automated assembly? A: 5KP24CA and SLD24-018 are supplied in cut tape (CT) packaging, suitable for automated pick-and-place assembly. 5KP24CA-B is supplied in bulk packaging, typically used for manual assembly or reel-fed processes.
Q: Is the 5KP24CA-TP a direct substitute? A: Electrical specifications are equivalent; however, the R-6 package differs from the original P600 package. Verify PCB footprint and lead spacing compatibility. Peak pulse current is not specified for this part; confirm with manufacturer documentation before final selection.
Q: What inventory levels are available? A: 5KP24CA-B: 1162 pcs; SLD24-018: 6000 pcs; 5KP24CA: 4428 pcs; 5KP24CA-TP: 3849 pcs. Availability may vary; consult current inventory status with your supplier.
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