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Equivalent & Substitute Parts for 5KP30C TVS Diode
Part Overview
The 5KP30C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse, designed for general-purpose overvoltage protection applications. Featuring a 30V reverse standoff voltage and 5000W peak pulse power rating in a P600 axial through-hole package, this component is classified as obsolete. Due to its obsolete status, equivalent substitute parts from active manufacturers are necessary to maintain design continuity and ensure ongoing component availability for new production and field replacements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 5KP30C |
| Manufacturer | Littelfuse |
| Category | Transient Voltage Suppressors (TVS) |
| Type | Zener |
| Bidirectional Channels | 1 |
| Voltage - Reverse Standoff (Typ) | 30V |
| Voltage - Breakdown (Min) | 31.55V |
| Voltage - Clamping (Max) @ Ipp | 50.82V |
| Power - Peak Pulse | 5000W (5kW) |
| Mounting Type | Through Hole |
| Package / Case | P600, Axial |
| Operating Temperature Range | -55°C ~ 175°C (TJ) |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution of the 5KP30C is determined by the following critical electrical and mechanical parameters:
Electrical Compatibility Criteria:
- Voltage - Reverse Standoff (Typ): 30V (exact match required)
- Voltage - Breakdown (Min): 31.55V to 34.61V (acceptable range)
- Power - Peak Pulse: 5000W minimum (equal or higher ratings acceptable)
- Type: Zener, Bidirectional (1 channel)
- Applications: General Purpose
Mechanical Compatibility Criteria:
- Mounting Type: Through Hole (required)
- Package / Case: P600 or R-6 axial packages (both compatible with through-hole designs)
Substitute parts are grouped into two categories based on package type: P600 axial package (direct mechanical replacement) and R-6 axial package (compatible alternative with identical electrical performance). All substitute parts maintain the 30V standoff voltage specification and meet or exceed the 5000W power rating, ensuring functional equivalence in overvoltage protection applications.
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff (Typ) | Voltage - Breakdown (Min) | Voltage - Clamping (Max) @ Ipp | Power - Peak Pulse | Package / Case | Operating Temperature | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| 5KP30C | Littelfuse | 30V | 31.55V | 50.82V | 5000W | P600, Axial | -55°C ~ 175°C | Obsolete | ROHS3 Compliant |
| 5KP30CA | Diotec Semiconductor | 30V | 33.3V | 48.4V | 5000W | P600, Axial | -50°C ~ 175°C | Active | ROHS3 Compliant |
| 5KP30CAE3/TR13 | Microchip Technology | 30V | 33.3V | 48.4V | 5000W | P600, Axial | -55°C ~ 175°C | Active | ROHS3 Compliant |
| 5KP30CA-TP | Micro Commercial Co | 30V | 33.3V | 48.4V | 5000W | R-6, Axial | -55°C ~ 175°C | Active | ROHS3 Compliant |
| 5KP30CE3/TR13 | Microchip Technology | 30V | 33.3V | 54.6V | 5000W | P600, Axial | -55°C ~ 175°C | Active | ROHS3 Compliant |
| 5KP30CA-G | Comchip Technology | 30V | 33.3V | 48.4V | 5000W | R-6, Axial | -55°C ~ 150°C | Active | ROHS3 Compliant |
| A5KP30CA-G | Comchip Technology | 30V | 33.3V | 48.4V | 5000W | R-6, Axial | -55°C ~ 150°C | Active | ROHS3 Compliant |
| 3KP30CA-TP | Micro Commercial Co | 30V | 33.3V | 48.4V | 3000W | R-6, Axial | -55°C ~ 175°C | Active | Not Specified |
| 15KP30CA-TP | Micro Commercial Co | 30V | 33.3V | 50.7V | 15000W | R-6, Axial | -55°C ~ 175°C | Active | Not Specified |
| 30KP30CA-TP | Micro Commercial Co | 30V | 34.61V | 55.2V | 30000W | R-6, Axial | -55°C ~ 175°C | Active | ROHS3 Compliant |
| SLD30CA-AP | Micro Commercial Co | 30V | 33.3V | 48.4V | 6000W | R-6, Axial | -55°C ~ 175°C | Active | Not Specified |
Engineering Selection Recommendations
Primary Substitutes (Recommended for Direct Replacement):
5KP30CAE3/TR13 (Microchip Technology) and 5KP30CE3/TR13 (Microchip Technology) are the preferred substitutes. Both maintain the P600 axial package identical to the original 5KP30C, ensuring mechanical compatibility without PCB layout modifications. Both parts are active products with ROHS3 compliance and operating temperature ranges matching or exceeding the original specification (-55°C ~ 175°C).
Secondary Substitutes (Compatible with Package Consideration):
5KP30CA-TP (Micro Commercial Co), 5KP30CA-G (Comchip Technology), and A5KP30CA-G (Comchip Technology) provide electrical equivalence with R-6 axial package configuration. These parts are suitable for applications where the R-6 package footprint is acceptable. All three maintain active product status and ROHS3 compliance. The A5KP30CA-G variant includes AEC-Q101 automotive qualification, suitable for automotive-grade applications.
Higher Power Rating Alternatives:
15KP30CA-TP and 30KP30CA-TP offer increased power dissipation capability (15kW and 30kW respectively) while maintaining the 30V standoff voltage. These parts are appropriate for applications requiring enhanced transient energy absorption beyond the original 5kW specification.
Lower Power Rating Alternative:
3KP30CA-TP provides 3kW peak pulse power, suitable only for applications with reduced transient energy requirements below the original 5kW specification.
Frequently Asked Questions (FAQ)
Q: Can I use a substitute part with a different package type (R-6 instead of P600)?
A: Yes. Both P600 and R-6 are axial through-hole packages formats. R-6 packages are mechanically compatible with P600 footprints in through-hole designs. Verify PCB hole spacing and lead diameter compatibility with your specific board layout before implementation.
Q: What is the difference between 5KP30CA and 5KP30CAE3/TR13?
A: Both parts share identical electrical specifications (30V standoff, 5000W power rating, P600 package). The primary difference is packaging format: 5KP30CA is supplied in bulk, while 5KP30CAE3/TR13 is supplied on tape and reel (TR). Electrical performance is equivalent.
Q: Why do some substitutes have higher power ratings (15kW, 30kW)?
A: Higher power-rated parts (15KP30CA-TP, 30KP30CA-TP) maintain the same 30V standoff voltage but provide increased transient energy absorption capability. These are suitable for applications experiencing higher energy transients. Lower power ratings are not recommended as they provide insufficient protection margin.
Q: Is the A5KP30CA-G suitable for automotive applications?
A: Yes. The A5KP30CA-G carries AEC-Q101 automotive qualification and is graded for automotive use. This variant is appropriate for automotive-grade circuit protection requirements.
Q: What is the operating temperature difference between substitutes?
A: Most substitutes operate across -55°C ~ 175°C, matching the original 5KP30C specification. The 5KP30CA (Diotec) operates -50°C ~ 175°C, and 5KP30CA-G and A5KP30CA-G (Comchip) operate -55°C ~ 150°C. Verify your application's temperature requirements before selection.
Q: Are all substitutes ROHS3 compliant?
A: Most substitutes are ROHS3 compliant. Verify compliance documentation for 3KP30CA-TP, 15KP30CA-TP, and SLD30CA-AP, as RoHS status is not specified in their data.
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