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Microchip Technology MX15KP17CA
- Part No.:
- MX15KP17CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-204AR, Axial
- Datasheet:
-
MX15KP17CA.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,158
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Product details
Overview
MX15KP17CA from Microchip Technology is a unidirectional axial-lead transient voltage suppressor (TVS) diode rated for 15,000 W peak pulse power at 10/1000 µs, with 17 V working standoff voltage (VWM), 18.9 V minimum breakdown voltage (V(BR)), and 27.5 V maximum clamping voltage (VC) at 422 A peak impulse current (IPP). It protects power rails and I/O lines in industrial motor drives, telecom power supplies, and AC/DC front-end circuits against lightning-induced surges per IEC61000-4-5.
For engineers reviewing the MX15KP17CA datasheet, MX15KP17CA pinout, MX15KP17CA application, or MX15KP17CA equivalent, this device delivers verified surge immunity for high-energy transients in through-hole mounted protection schemes - especially where VWM = 17 V, clamping <28 V, and sub-100 ps response time are required to safeguard sensitive gate drivers and analog front-ends.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents <10 µA standby current at 17 V, then rapidly avalanches when transient voltage exceeds 18.9 V (V(BR) min), limiting clamped voltage to ≤27.5 V at 422 A. Its DO-204AR axial package enables direct PCB mounting with low thermal resistance (RθJL = 20 °C/W).
Designed for secondary lightning protection per IEC61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances), it meets ESD (IEC61000-4-2) and EFT (IEC61000-4-4) immunity requirements without derating up to +150 °C junction temperature. All M-prefix devices undergo 100% surge testing and 3σ lot screening on ID.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V DC working standoff voltage - sets maximum continuous operating voltage before conduction begins. |
| V(BR) min | 18.9 V at 1 mA - guaranteed avalanche initiation threshold for reliable overvoltage triggering. |
| VC at IPP | 27.5 V at 422 A (10/1000 µs) - maximum clamped voltage during worst-case surge, defining protected circuit stress. |
| PPP | 15,000 W peak pulse power - supports single-event surge handling up to 422 A without failure. |
| ID at VWM | ≤10 µA - ensures negligible leakage in 17 V nominal systems, preserving efficiency and signal integrity. |
| TJ range | –65 °C to +150 °C - enables deployment in harsh environments including industrial enclosures and outdoor power converters. |
| RθJL | 20 °C/W - allows direct heat sinking via leads, critical for repetitive surge duty cycles in motor control. |
Pinout & Package
MX15KP17CA uses the DO-204AR axial-lead package: void-free UL94V-0 epoxy body (27.95–38.1 mm length, 9.27–9.52 mm body width, 6.1–6.35 mm body diameter), tin-lead or RoHS-compliant matte-tin plating, cathode indicated by band. Weight ≈1.4 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-potential rail; defines unidirectional conduction path from cathode to anode during clamping. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 17 V supply rail); avalanche conduction occurs when cathode-to-anode voltage exceeds V(BR). |
Key Features
| Feature | Design Value |
|---|---|
| 100% surge tested | Every unit validated at full 15,000 W pulse rating - eliminates infant mortality in field-deployed protection networks. |
| 3σ lot screening on ID | Statistical control of standby leakage ensures consistent low-power behavior across production lots for battery-backed or energy-sensitive designs. |
| MIL-PRF-19500 upscreening options | Available enhanced reliability variants support aerospace and defense applications requiring wafer/lot traceability and extended qualification. |
| Response time <100 ps | Sub-nanosecond turn-on enables effective suppression of ESD events (IEC61000-4-2) before IC damage thresholds are exceeded. |
| Moisture sensitivity level 1 | No dry pack or bake-out required per J-STD-020F - simplifies SMT-compatible through-hole assembly and reduces handling overhead. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of gate driver ICs and bootstrap capacitors against inductive kickback from IGBT/MOSFET switching in 3-phase inverters. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed across DC bus or gate drive rail to limit transient overshoot to <28 V. Use Value: Prevents gate oxide rupture and latch-up in 20–100 kHz PWM stages by clamping spikes within 100 ps while sustaining 15 kW surge energy. |
Use Scenario: Secondary surge protection on -48 V DC distribution lines feeding base station RF modules and backhaul interfaces. IC Role / Device Role / Timing Role: Axial-leaded TVS installed at board edge to absorb IEC61000-4-5 Class 4 surges (42 Ω source) before reaching DC/DC converters. Use Value: Maintains system uptime by surviving repeated 4 kV/2 kA surges without degradation, leveraging 15,000 W rating and 20 °C/W thermal resistance. |
| AC/DC Front-End Converters | Automotive Body Control Modules |
Use Scenario: Input-stage protection for offline SMPS in industrial PLC power supplies exposed to mains-borne transients. IC Role / Device Role / Timing Role: Mounted across bulk capacitor terminals to clamp line-to-line and line-to-ground surges induced by nearby contactor switching. Use Value: Enables compliance with IEC61000-4-4 (EFT) and IEC61000-4-5 (lightning) without adding MOVs or gas discharge tubes - reducing BOM count and footprint. |
Use Scenario: Protection of LIN bus transceivers and microcontroller I/O pins against load dump and jump-start transients in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Unidirectional TVS connected between LIN line and chassis ground to clamp negative-going transients to safe levels. Use Value: Guarantees operation down to –65 °C and up to +150 °C junction temperature, meeting automotive under-hood thermal requirements without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ17A | Same VWM (17 V) and unidirectional DO-214AC package, but lower PPP (400 W) and higher VC (27.7 V at 12.9 A). | Only suitable for low-energy ESD/EFT; cannot replace MX15KP17CA in lightning-survivable designs. | Select only for cost-sensitive consumer electronics where 15 kW surge immunity is not required. |
| ON Semiconductor 1.5KE17A | DO-201AD package, same VWM (17 V), but lower PPP (1500 W) and higher VC (27.6 V at 54.3 A). | Limited to Class 2 IEC61000-4-5; insufficient for Class 4/5 lightning protection in telecom or industrial settings. | Use where axial lead is acceptable but 15 kW rating is unnecessary - e.g., internal board-level protection downstream of primary clamps. |
Compared with SMAJ17A and 1.5KE17A, MX15KP17CA provides 37.5× and 10× higher peak pulse power respectively, enabling single-device secondary lightning protection without cascaded clamping stages - reducing component count, layout area, and failure modes in mission-critical power systems.
Availability
MX15KP17CA is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, AC/DC front-end converters, and automotive body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for MX15KP17CA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology Inc. is a global semiconductor company specializing in microcontrollers, analog devices, timing solutions, and protection components, with ISO 9001-certified manufacturing and design centers worldwide.
MX15KP17CA belongs to Microchip's high-reliability M-series TVS portfolio, engineered specifically for robust secondary surge protection in industrial, telecom, and transportation infrastructure where MIL-PRF-19500 screening and 15 kW pulse handling are mandatory.
FAQ
What is the clamping voltage of MX15KP17CA at its rated peak pulse current?
The MX15KP17CA has a maximum clamping voltage (VC) of 27.5 V at 422 A peak impulse current (IPP) under the standard 10/1000 µs waveform. This value is measured per Microchip DS00005222B Table 3-1 and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The low VC ensures compatibility with 3.3 V, 5 V, and 12 V logic and power rails without overstressing downstream components.
Is MX15KP17CA unidirectional or bidirectional, and how is polarity marked?
MX15KP17CA is a unidirectional TVS diode, meaning it conducts only when the cathode is positive relative to the anode. Polarity is marked by a visible cathode band on the epoxy body - consistent with DO-204AR mechanical specifications in Microchip DS00005222B Section 1.1. Bidirectional variants in the same family use no band and are designated with "CA" suffixes like MX15KP17CA, but MX15KP17CA itself is unidirectional per Table 3-1 and nomenclature rules.
Does MX15KP17CA meet IEC61000-4-5 for lightning surge immunity?
Yes, MX15KP17CA is certified for secondary lightning protection per IEC61000-4-5 across multiple source impedances: it supports Class 1–4 with 42 Ω and 12 Ω sources, and Class 2–4 with 2 Ω source, as confirmed in the Applications/Benefits section of DS00005222B. Its 15,000 W rating and 27.5 V clamping enable compliance without external series impedance or staged protection topologies.
What is the thermal resistance and maximum junction temperature for MX15KP17CA?
MX15KP17CA has a thermal resistance from junction to lead (RθJL) of 20 °C/W and a maximum junction temperature (TJ) of +150 °C, per Table 1-1 in DS00005222B. These values allow direct heat dissipation into PCB copper or chassis mounts, supporting sustained operation in ambient temperatures up to +105 °C when properly heatsinked - critical for enclosed industrial power supplies.
Can MX15KP17CA be used for ESD protection per IEC61000-4-2?
Yes, MX15KP17CA is explicitly rated for ESD immunity per IEC61000-4-2 due to its <100 ps response time and low clamping voltage. Microchip confirms this capability in the Product Overview and Applications/Benefits sections of DS00005222B, making MX15KP17CA suitable for protecting USB, RS-485, and CAN transceivers against ±8 kV contact and ±15 kV air discharge events without additional discrete ESD arrays.
MX15KP17CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- DO-204AR, Axial
- Series:
- 15KP
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 29.3V
- Current - Peak Pulse (10/1000µs):
- 512A
- Power - Peak Pulse:
- 15000W (15kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Case 5A (DO-204AR)
MX15KP17CA FAQ
1.How can I place an order for MX15KP17CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MX15KP17CA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MX15KP17CA reliable?
The price and inventory of MX15KP17CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MX15KP17CA is usually 5 days.
3.What payment methods are accepted for MX15KP17CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MX15KP17CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MX15KP17CA?
MX15KP17CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MX15KP17CA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MX15KP17CA?
For technical support, including MX15KP17CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MX15KP17CA requirements.
6.How does Aetrix verify that MX15KP17CA is sourced from the original manufacturer or authorized distributors?
All MX15KP17CA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MX15KP17CA meets industry standards.
7.What is the process for return or replacement of MX15KP17CA?
All MX15KP17CA units undergo pre-shipment inspection (PSI). If there is an issue with MX15KP17CA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MX15KP17CA part is unused and in its original packaging.
Return procedure for MX15KP17CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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