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5KP17AE3/TR13 Equivalent & Substitute Parts
Part Overview
The 5KP17AE3/TR13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This component features a 17V reverse standoff voltage with a 27.6V maximum clamping voltage and peak pulse current capability of 181A at 5000W peak pulse power. The device is housed in a P600 axial package and is supplied in Tape & Reel (TR) format. The part maintains Active product status with full ROHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching electrical performance parameters, thermal operating range, and mechanical compatibility within the transient voltage suppressor category.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 17 | V |
| Voltage - Breakdown (Min) | 18.9 | V |
| Voltage - Clamping (Max) @ Ipp | 27.6 | V |
| Current - Peak Pulse (10/1000µs) | 181 | A |
| Power - Peak Pulse | 5000 | W |
| Operating Temperature Range | -55 to 175 | °C (TJ) |
| Mounting Type | Through Hole | |
| Package / Case | P600, Axial | |
| Type | Zener | |
| Unidirectional Channels | 1 |
Substitute Part Grouping Explanation
Substitute parts for the 5KP17AE3/TR13 are categorized based on the following electrical and mechanical criteria:
Primary Substitution Criteria:
- Voltage - Reverse Standoff (Typ): 17V nominal
- Voltage - Breakdown (Min): 18.9V minimum
- Voltage - Clamping (Max) @ Ipp: 27.6V maximum
- Current - Peak Pulse (10/1000µs): 181A nominal
- Power - Peak Pulse: 5000W nominal
- Operating Temperature Range: -55°C to 175°C (TJ)
- Type: Zener, Unidirectional
- Mounting Type: Through Hole
- RoHS Status: ROHS3 Compliant
Grouping Logic:
Group 1: Direct Package Equivalents (P600 Axial) Parts maintaining identical P600 axial package with matching electrical specifications and 5kW power rating. These provide pin-for-pin and footprint compatibility.
Group 2: Alternative Package Equivalents (DO-201 Axial) Parts with similar voltage and current ratings but housed in DO-201 axial packages. These offer electrical equivalence with different mechanical form factors suitable for alternative PCB layouts.
Group 3: Higher Power Capability (15kW Rating) Parts with identical voltage specifications but enhanced current and power handling. These provide superior transient protection margins while maintaining voltage regulation characteristics.
Group 4: Lower Power Capability (1.5kW Rating) Parts with similar voltage regulation but reduced current and power ratings. These are suitable for applications with lower transient energy requirements.
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff (V) | Voltage - Breakdown Min (V) | Voltage - Clamping Max (V) | Current - Peak Pulse (A) | Power - Peak Pulse (W) | Package / Case | Operating Temp (°C) | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| 5KP17AE3/TR13 | Microchip Technology | 17 | 18.9 | 27.6 | 181 | 5000 | P600, Axial | -55 to 175 | ROHS3 |
| 5KP17A | Littelfuse Inc. | 17 | 18.9 | 27.6 | 184.8 | 5000 | P600, Axial | -55 to 175 | ROHS3 |
| 5KP17A-TP | Micro Commercial Co | 17 | 18.9 | 27.6 | — | 5000 | R-6, Axial | -55 to 175 | ROHS3 |
| 15KPA17A | MDE Semiconductor Inc | 17 | 18.99 | 29.3 | 515.4 | 15000 | P600, Axial | -55 to 175 | ROHS3 |
| 1.5KE18A | Taiwan Semiconductor Corporation | 15.3 | 17.1 | 25.5 | 60 | 1500 | DO-201AA, DO-27, Axial | -55 to 175 | ROHS3 |
| 1.5KE20A | Taiwan Semiconductor Corporation | 17.1 | 19 | 27.7 | 56 | 1500 | DO-201AA, DO-27, Axial | -55 to 175 | ROHS3 |
| LCE15A | Littelfuse Inc. | 15 | 16.7 | 24.4 | 61 | 1500 | DO-201AA, DO-27, Axial | -55 to 175 | ROHS3 |
| LCE16A | Littelfuse Inc. | 16 | 17.8 | 26 | 57 | 1500 | DO-201AA, DO-27, Axial | -55 to 175 | ROHS3 |
| LCE18A | Littelfuse Inc. | 18 | 20 | 29.2 | 51 | 1500 | DO-201AA, DO-27, Axial | -55 to 175 | ROHS3 |
| P6KE18A | Fairchild Semiconductor | 15.3 | 17.1 | 25.2 | 25 | 600 | DO-204AC, DO-15, Axial | -50 to 175 | — |
Engineering Selection Recommendations
Direct Equivalents (Recommended for Pin-for-Pin Replacement):
The 5KP17A (Littelfuse Inc.) is the primary direct equivalent, offering identical voltage specifications (17V reverse standoff, 27.6V clamping), matching 5000W power rating, and P600 axial package compatibility. Peak pulse current of 184.8A is within 2% of the original specification. Both parts maintain ROHS3 compliance and identical operating temperature range. This part is suitable for direct substitution without circuit modification.
The 5KP17A-TP (Micro Commercial Co) provides equivalent electrical performance with identical voltage and power specifications but uses an R-6 axial package variant. This part is suitable where mechanical form factor differences are acceptable. ROHS3 compliance and operating temperature range match the original specification.
Higher Power Alternative:
The 15KPA17A (MDE Semiconductor Inc) maintains identical 17V reverse standoff voltage with P600 axial package compatibility. This part provides enhanced transient protection with 515.4A peak pulse current and 15000W power rating, representing a 3x power capability increase. The clamping voltage of 29.3V remains within acceptable tolerance. This part is suitable for applications requiring superior transient energy absorption while maintaining voltage regulation characteristics. ROHS3 compliance and operating temperature range are maintained.
Lower Power Alternatives (Reduced Transient Energy Applications):
The 1.5KE20A (Taiwan Semiconductor Corporation) provides the closest voltage match among lower-power options with 17.1V reverse standoff and 27.7V clamping voltage. The 1500W power rating and 56A peak pulse current are suitable for applications with reduced transient energy requirements. DO-201 axial package requires PCB layout modification. ROHS3 compliance and operating temperature range are maintained.
The LCE16A (Littelfuse Inc.) offers 16V reverse standoff with 26V clamping voltage, providing conservative voltage regulation. The 1500W power rating and 57A peak pulse current are appropriate for lower-energy transient protection. DO-201 axial package requires PCB layout modification. ROHS3 compliance and operating temperature range are maintained.
Compliance and Certification Status:
All recommended substitute parts maintain ROHS3 compliance and operate within the -55°C to 175°C temperature range. All parts are classified as Active products with unlimited moisture sensitivity rating (MSL 1). Electrical characteristics remain within acceptable engineering tolerances for general-purpose transient voltage suppression applications.
Frequently Asked Questions (FAQ)
Q: Can the 5KP17A directly replace the 5KP17AE3/TR13?
A: Yes. The 5KP17A (Littelfuse Inc.) is a direct electrical equivalent with identical voltage specifications (17V reverse standoff, 27.6V clamping) and matching 5000W power rating in the same P600 axial package. Peak pulse current differs by less than 2% (184.8A vs. 181A). Both parts maintain ROHS3 compliance and identical operating temperature range. No circuit modification is required.
Q: What is the difference between P600 and DO-201 packages?
A: P600 and DO-201 are both axial through-hole packages for transient voltage suppressors but differ in physical dimensions and lead spacing. P600 packages are larger with greater lead separation, while DO-201 packages are more compact. Both are suitable for through-hole PCB mounting but require different footprint designs. Electrical performance is independent of package type.
Q: Can I use the 15KPA17A as a substitute?
A: Yes. The 15KPA17A maintains identical 17V reverse standoff voltage and P600 axial package compatibility. The primary difference is enhanced transient protection capability with 515.4A peak pulse current and 15000W power rating compared to 181A and 5000W. This part is suitable for applications requiring superior transient energy absorption. The higher power rating does not negatively affect circuit performance in applications designed for the original 5kW part.
Q: Why would I choose a lower-power substitute like the 1.5KE20A?
A: Lower-power substitutes are appropriate for applications with reduced transient energy requirements or where cost optimization is a design consideration. The 1.5KE20A provides adequate voltage regulation (17.1V reverse standoff, 27.7V clamping) for lower-energy transient events. However, this part cannot handle the full transient energy of the original 5kW specification and should only be used in applications with confirmed lower transient stress levels.
Q: Are all substitute parts ROHS3 compliant?
A: All recommended substitute parts listed in this document maintain ROHS3 compliance. The P6KE18A (Fairchild Semiconductor) does not specify RoHS status in the provided data and should be verified for compliance requirements before selection.
Q: What is the significance of the voltage parameters (Reverse Standoff, Breakdown, Clamping)?
A: Reverse Standoff voltage (17V) is the maximum voltage the diode blocks without conducting. Breakdown voltage (18.9V minimum) is the threshold at which the diode begins conducting to suppress overvoltage. Clamping voltage (27.6V maximum) is the voltage level maintained across the diode during transient suppression at peak pulse current. These three parameters define the protection window and must be matched to circuit requirements.
Q: Can I substitute parts with different voltage ratings?
A: Voltage rating substitution requires careful circuit analysis. Parts with lower reverse standoff voltages (e.g., 15.3V vs. 17V) will conduct at lower overvoltage levels, potentially affecting circuit operation. Parts with higher reverse standoff voltages (e.g., 18V) will tolerate higher overvoltage before suppression. Substitution outside the specified voltage range may result in inadequate protection or circuit malfunction.
Q: What does "Unidirectional Channels: 1" mean?
A: Unidirectional TVS diodes conduct in only one direction, providing protection against overvoltage in a single polarity. All substitute parts listed maintain single unidirectional channel configuration, matching the original specification. This characteristic is essential for applications requiring polarity-specific transient protection.
Q: How does peak pulse current affect substitution decisions?
A: Peak pulse current (181A for the original part) indicates the maximum transient current the diode can safely conduct. Substitutes with lower peak pulse current (e.g., 60A for 1.5KE18A) cannot handle equivalent transient energy and are suitable only for lower-stress applications. Substitutes with higher peak pulse current (e.g., 515.4A for 15KPA17A) provide enhanced protection margin. Peak pulse current must be matched to actual circuit transient stress levels.
Q: What is the importance of operating temperature range?
A: The operating temperature range (-55°C to 175°C junction temperature) defines the thermal environment in which the part functions reliably. All recommended substitutes maintain this identical range, ensuring consistent performance across the full operating envelope. Temperature-dependent parameter drift remains equivalent across all substitute parts.
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