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Taiwan Semiconductor Corporation 1K5SMPC16APH
- Part No.:
- 1K5SMPC16APH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
1K5SMPC16APH.pdf
- Description:
- 1500W, 16V, 5%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
1K5SMPC16APH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for automotive and industrial overvoltage protection. It features a 16.0 V nominal breakdown voltage (VBR), 13.6 V maximum standoff voltage (VWM), 22.5 V clamping voltage (VC) at 66.7 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed in BLDC motor drives and battery management systems.
For engineers reviewing the 1K5SMPC16APH datasheet, 1K5SMPC16APH pinout, 1K5SMPC16APH application, or 1K5SMPC16APH equivalent, key selection criteria include unidirectional polarity, TO-277A (SMPC4.6U) package compatibility, AEC-Q101 qualification, ISO 7637-2 pulse immunity, and thermal resistance (RθJL = 6.4 °C/W) for high-reliability PCB-mounted surge suppression.
Technical Context
This TVS diode operates as a unidirectional clamping device, triggered when reverse voltage exceeds its 15.2–16.8 V breakdown range (tested at 1.0 mA). Its 22.5 V clamping voltage limits transient energy to protected circuitry during ISO 7637-2 Pulse 1/2a/2b/3a/3b events.
Thermally, it sustains junction temperatures from –55 °C to +175 °C, with RθJL = 6.4 °C/W enabling effective heat transfer to PCB copper pads (16 mm × 16 mm), and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 15.2 / 16.0 / 16.8 V - defines precise voltage threshold at which clamping initiates under 1 mA test current |
| VWM | 13.6 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 22.5 V at 66.7 A - peak clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - non-repetitive peak pulse power handling capability per IEC 61000-4-2 Level 4 |
| RθJL | 6.4 °C/W - junction-to-lead thermal resistance enables efficient conduction cooling into PCB copper |
| Polarity | Unidirectional - protects against negative transients only; requires correct anode/cathode orientation |
Pinout & Package
Package: TO-277A (SMPC4.6U), surface-mount, unidirectional, matte tin-plated leads, UL 94V-0 molding compound, 0.095 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 3) | Current entry terminal during forward conduction | Connected to system ground or low-side reference; must be routed with low-inductance path for fast transient response |
| Cathode 1 (Pin 1) | Primary cathode connection | Connected to protected line (e.g., motor phase, battery rail); carries full surge current during clamping |
| Cathode 2 (Pin 2) | Secondary cathode connection | Internally tied to Cathode 1; provides redundant low-impedance path and mechanical stability in TO-277A dual-cathode layout |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per JEDEC standards |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) without degradation |
| Junction temperature range | –55 °C to +175 °C operation supports under-hood and high-power industrial environments |
| Moisture sensitivity level | Level 1 per J-STD-020 - no bake requirement prior to reflow, simplifying SMT assembly |
| Halogen-free construction | Complies with IEC 61249-2-21 - eliminates brominated flame retardants for RoHS and environmental compliance |
Applications
| BLDC Motor Drive Protection | Battery Management System (BMS) |
|---|---|
Use Scenario: Suppresses inductive kickback and load-dump transients in 12–48 V BLDC inverter half-bridges. IC Role / Device Role / Timing Role: Unidirectional TVS placed across motor phase terminals or DC bus rails to clamp spikes before they reach gate drivers or MCU I/O. Use Value: Limits VC to 22.5 V during 66.7 A surges, preventing latch-up or gate oxide damage in MOSFETs rated ≤30 V. | Use Scenario: Protects cell monitoring ICs and communication lines in 12 V–48 V lithium-ion battery packs against ISO 7637-2 Pulse 2a/3b events. IC Role / Device Role / Timing Role: Placed at pack input/output terminals and between modules to absorb coupling-induced transients before reaching analog front-end or CAN interface. Use Value: Withstands 1500 W pulses while maintaining <1.0 µA leakage at 13.6 V, preserving BMS measurement accuracy and low-quiescent current operation. |
| Automotive Lighting Control | Industrial SMPS Input Stage |
Use Scenario: Shields LED driver controllers and LIN bus transceivers from load-dump and jump-start transients in headlamp and tail lamp modules. IC Role / Device Role / Timing Role: Mounted directly at connector interface to clamp fast-rising transients (<10 ns rise time) before propagation into sensitive logic. Use Value: AEC-Q101 qualification and 175 °C TJMAX ensure stable operation in sealed, thermally constrained lighting housings. | Use Scenario: Guards AC-DC and DC-DC converter inputs against lightning-induced surges and switching noise in factory automation power supplies. IC Role / Device Role / Timing Role: Used as primary-level TVS on bulk input rails (e.g., 24 V or 48 V DC input) upstream of EMI filters and PFC stages. Use Value: 6.4 °C/W RθJL allows direct thermal coupling to heatsink-equipped PCBs, sustaining repeated 10/1000 µs surges without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A | DO-214AC package; lower PPPM (400 W); higher VC (26.0 V at 24.7 A); not AEC-Q101 qualified | Limited to commercial-grade consumer or industrial power supplies without automotive qualification requirements | Select SMAJ16A only if AEC-Q101 and 1500 W surge capacity are not required; verify PCB pad compatibility with DO-214AC footprint |
| 1.5KE16A | DO-201AD axial-leaded package; 1500 W rating but larger size; no AEC-Q101; higher VC (25.5 V at 59 A) | Suitable for prototyping or through-hole legacy designs; incompatible with automated SMT assembly | Choose 1.5KE16A only for manual assembly or where TO-277A's surface-mount form factor cannot be accommodated |
Compared with SMAJ16A and 1.5KE16A, the 1K5SMPC16APH delivers automotive-grade reliability, superior thermal performance (6.4 °C/W vs. >20 °C/W), and compact SMT integration - critical for space-constrained, high-surge industrial and automotive electronics.
Availability
1K5SMPC16APH is available at Aetrix Electronics and suitable for BLDC motor drives, battery management systems, automotive lighting control, and industrial SMPS requiring stable component supply, AEC-Q101 compliance, and repeatable 1500 W surge handling.
Supply support for 1K5SMPC16APH 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers with global distribution and AEC-Q101 validation capabilities.
The 1K5SMPCxxAPH series was engineered specifically for automotive and industrial transient suppression, emphasizing high-power clamping, robust thermal design, and SMT-ready packaging for next-generation power electronics.
FAQ
What is the exact breakdown voltage range for 1K5SMPC16APH?
The 1K5SMPC16APH has a guaranteed breakdown voltage (VBR) range of 15.2 V to 16.8 V at 1.0 mA test current, with a typical value of 16.0 V. This range is verified per datasheet Table "ELECTRICAL CHARACTERISTICS" and ensures consistent clamping behavior across production lots and temperature extremes.
Is 1K5SMPC16APH suitable for bidirectional transient protection?
No, the 1K5SMPC16APH is strictly unidirectional and protects only against negative-going transients on the cathode side. For bidirectional protection, a separate device such as a symmetric TVS pair or a dedicated bidirectional TVS like 1K5SMPC16CA would be required - the 1K5SMPC16APH's marking, polarity, and electrical specs confirm unidirectional operation.
What is the maximum clamping voltage of 1K5SMPC16APH under surge conditions?
The 1K5SMPC16APH exhibits a maximum clamping voltage (VC) of 22.5 V when subjected to its rated 66.7 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is measured and specified in the "ELECTRICAL CHARACTERISTICS" table and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Does 1K5SMPC16APH require special PCB layout considerations?
Yes - to maintain low-inductance paths and optimal thermal performance, the 1K5SMPC16APH should be placed within 5 mm of the protected node with short, wide traces to both anode and cathode pins, and mounted on a 16 mm × 16 mm copper pad per the recommended land pattern. Thermal vias under the cathode pads further enhance heat dissipation in high-duty-cycle applications.
Can 1K5SMPC16APH replace older SMAJ16A parts in existing designs?
Direct replacement is not recommended without validation: although both suppress 16 V transients, the 1K5SMPC16APH offers higher surge rating (1500 W vs. 400 W), lower clamping voltage (22.5 V vs. 26.0 V), AEC-Q101 qualification, and TO-277A packaging - requiring PCB footprint and thermal design review. The 1K5SMPC16APH is not a drop-in substitute for SMAJ16A.
1K5SMPC16APH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- TO-277, 3-PowerDFN
- Series:
- 1K5SMPC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 66.7A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMPC4.6U
1K5SMPC16APH FAQ
1.How can I place an order for 1K5SMPC16APH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1K5SMPC16APH 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 1K5SMPC16APH reliable?
The price and inventory of 1K5SMPC16APH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1K5SMPC16APH is usually 5 days.
3.What payment methods are accepted for 1K5SMPC16APH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1K5SMPC16APH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1K5SMPC16APH?
1K5SMPC16APH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1K5SMPC16APH 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 1K5SMPC16APH?
For technical support, including 1K5SMPC16APH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1K5SMPC16APH requirements.
6.How does Aetrix verify that 1K5SMPC16APH is sourced from the original manufacturer or authorized distributors?
All 1K5SMPC16APH 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 1K5SMPC16APH meets industry standards.
7.What is the process for return or replacement of 1K5SMPC16APH?
All 1K5SMPC16APH units undergo pre-shipment inspection (PSI). If there is an issue with 1K5SMPC16APH, 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 1K5SMPC16APH part is unused and in its original packaging.
Return procedure for 1K5SMPC16APH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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