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Taiwan Semiconductor Corporation 1K5SMPC36APH
- Part No.:
- 1K5SMPC36APH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
1K5SMPC36APH.pdf
- Description:
- 1500W, 36V, 5%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:5,870
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Product details
Overview
1K5SMPC36APH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in TO-277A (SMPC4.6U) package, rated for 1500W peak pulse power (10/1000µs), 36.0V nominal breakdown voltage (VBR), and 49.9V maximum clamping voltage (VC) at 30.1A peak pulse current - deployed in automotive BLDC motor control and battery management systems.
For engineers reviewing the 1K5SMPC36APH datasheet, 1K5SMPC36APH pinout, 1K5SMPC36APH application, or 1K5SMPC36APH equivalent, key selection criteria include unidirectional polarity, IEC 61000-4-2 Level 4 / ISO 10605 L4 ESD immunity, ISO 7637-2 Pulse 1/2a/2b/3a/3b surge compliance, AEC-Q101 qualification, and thermal resistance RθJL = 6.4°C/W for PCB-mounted reliability.
Technical Context
This TVS diode operates as a unidirectional clamping device protecting sensitive downstream circuitry against fast transient overvoltages. Its 36.0V VBR (min 34.2V, max 37.8V at 1.0mA) and 30.8V stand-off voltage (VWM) define its operating window before conduction begins, while 49.9V clamping at 30.1A ensures low-voltage overshoot during 1500W surges.
Thermally, it supports junction temperatures from –55°C to +175°C with RθJL = 6.4°C/W and RθJC = 8.9°C/W on a 16mm × 16mm Cu pad test board. It meets JESD201 Class 2 whisker resistance and J-STD-020 moisture sensitivity level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 36.0 V - precise breakdown threshold enabling accurate overvoltage triggering in 24–36V automotive subsystems |
| VWM | 30.8 V - maximum continuous reverse working voltage without leakage degradation |
| VC @ IPPM | 49.9 V - clamped voltage at 30.1 A peak pulse current, limiting stress on protected ICs |
| PPPM | 1500 W - non-repetitive surge power handling per 10/1000µs waveform, critical for ISO 7637-2 compliance |
| TJ Max | +175 °C - extended junction temperature rating supporting under-hood automotive placement |
| Polarity | Unidirectional - blocks reverse current only; suitable for DC-biased rail protection (e.g., battery+ lines) |
| RθJL | 6.4 °C/W - low junction-to-lead thermal resistance enables efficient heat transfer to PCB copper |
Pinout & Package
Package: TO-277A (SMPC4.6U), surface-mount, unidirectional, matte tin-plated leads, UL 94V-0 molding compound, 0.095g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 3) | Current entry point during clamping | Connected to protected line (e.g., battery+); conducts surge current toward cathode |
| Cathode 1 (Pin 1) | Common cathode terminal | Internally tied to Cathode 2; provides dual-pad thermal and mechanical stability |
| Cathode 2 (Pin 2) | Common cathode terminal | Electrically identical to Pin 1; enhances solder joint reliability and thermal dissipation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per AEC standard |
| IEC 61000-4-2 Level 4 & ISO 10605 L4 compliant | Withstands ±15 kV air discharge and ±8 kV contact discharge without parametric shift or failure |
| ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity | Clamps induced transients from load dump, inductive switching, and supply interruption in vehicle networks |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 halogen-free requirements and EU RoHS Directive 2011/65/EU |
| Moisture sensitivity level 1 | No floor life limitation or bake requirement prior to reflow; compatible with standard SMT assembly |
Applications
| BLDC Motor Control | Battery Management System (BMS) |
|---|---|
Use Scenario: Protection of gate drivers and MCU inputs against back-EMF spikes during commutation in 24–48V automotive BLDC motors. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient energy on high-side FET source or phase-leg sense lines. Use Value: Limits voltage overshoot to ≤49.9V during 30.1A surges, preventing latch-up or oxide damage in 3.3V/5V logic interfaces. | Use Scenario: Safeguarding cell monitor ICs and coulomb counter inputs from load-dump transients in 12–48V EV/HEV battery packs. IC Role / Device Role / Timing Role: Standoff-rated clamping device on analog front-end (AFE) supply rails and voltage-sense traces. Use Value: Maintains 30.8V VWM margin above nominal pack voltage while clamping ISO 7637-2 Pulse 2b to <50V. |
| Automotive Lighting | Switching Mode Power Supply (SMPS) |
Use Scenario: Transient suppression on LED driver input rails exposed to alternator ripple and ignition noise in headlamp modules. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24V input stage upstream of buck controller and gate driver. Use Value: Withstands repetitive 1500W pulses without degradation, ensuring >10-year field life under AEC-Q101 stress profiles. | Use Scenario: Input-stage surge protection in industrial 24V/48V DC-DC converters subject to long-line inductive switching. IC Role / Device Role / Timing Role: Fast-response unidirectional TVS placed across bulk capacitor input terminals. Use Value: Achieves 49.9V clamping at 30.1A with <1 ns response time, reducing downstream MOV or varistor reliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A | DO-214AC package; lower PPPM = 400W; VC = 58.1V @ 6.9A; RθJA ≈ 100°C/W | Limited to lower-energy surges; unsuitable for ISO 7637-2 Pulse 1 or 2b in automotive | Select 1K5SMPC36APH when 1500W surge rating and AEC-Q101 qualification are mandatory |
| SMCJ36A | DO-214AB package; PPPM = 1500W; VC = 58.1V @ 25.8A; no AEC-Q101 qualification; RθJA ≈ 35°C/W | Acceptable for industrial SMPS but lacks automotive validation and tighter VBR tolerance | Choose 1K5SMPC36APH for automotive BMS or lighting where AEC-Q101 and 36.0V ±5% VBR are required |
Compared with SMAJ36A and SMCJ36A, 1K5SMPC36APH delivers superior thermal performance (RθJL = 6.4°C/W), tighter VBR tolerance (±5%), and full AEC-Q101 qualification - making it the only option validated for under-hood automotive deployment with ISO 7637-2 Pulse 1/2b/3b immunity.
Availability
1K5SMPC36APH is available at Aetrix Electronics and suitable for automotive BLDC motor control, battery management systems, and industrial switching mode power supplies requiring stable component supply, AEC-Q101 traceability, and long-term lifecycle support.
Supply support for 1K5SMPC36APH 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 Company (TSC) is a vertically integrated Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers with global automotive and industrial certifications.
The 1K5SMPCxxAPH series was designed specifically for AEC-Q101-compliant transient protection in 12–51V automotive subsystems - emphasizing low clamping voltage, high surge robustness, and surface-mount thermal efficiency in TO-277A packaging.
FAQ
What is the breakdown voltage tolerance of 1K5SMPC36APH?
The 1K5SMPC36APH has a specified breakdown voltage range of 34.2 V (min) to 37.8 V (max) at 1.0 mA test current, yielding a nominal VBR of 36.0 V with ±5% tolerance. This tight spread ensures consistent clamping behavior across production lots and supports precise overvoltage design margins in automotive 24V and 36V systems.
Is 1K5SMPC36APH qualified for automotive use?
Yes, 1K5SMPC36APH is AEC-Q101 qualified and tested per automotive reliability standards including temperature cycling, high-temperature reverse bias (HTRB), and ESD. It also meets ISO 7637-2 Pulse 1/2a/2b/3a/3b and IEC 61000-4-2 Level 4, confirming suitability for under-hood and body-control module applications.
What is the maximum clamping voltage of 1K5SMPC36APH at rated surge current?
The maximum clamping voltage (VC) of 1K5SMPC36APH is 49.9 V at 30.1 A peak pulse current (IPPM) under the 10/1000 µs waveform. This value is measured per JEDEC standards and guarantees predictable overvoltage limiting for downstream 3.3V, 5V, or 12V ICs in protected circuits.
Does 1K5SMPC36APH have unidirectional or bidirectional polarity?
1K5SMPC36APH is a unidirectional TVS diode, meaning it clamps only in reverse-bias mode and blocks forward current up to its rated IFSM of 200 A (8.3 ms half-sine). Its marking and pinout (Anode = Pin 3, Cathodes = Pins 1 & 2) confirm unidirectional operation for DC-biased rail protection.
What is the thermal resistance from junction to lead (RθJL) for 1K5SMPC36APH?
The junction-to-lead thermal resistance (RθJL) of 1K5SMPC36APH is 6.4°C/W when mounted on a 16 mm × 16 mm copper pad test board. This low value enables effective heat transfer from the silicon die to the PCB, supporting sustained operation at TJ up to +175°C in thermally constrained automotive environments.
1K5SMPC36APH 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):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 30.1A
- 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
1K5SMPC36APH FAQ
1.How can I place an order for 1K5SMPC36APH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1K5SMPC36APH 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 1K5SMPC36APH reliable?
The price and inventory of 1K5SMPC36APH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1K5SMPC36APH is usually 5 days.
3.What payment methods are accepted for 1K5SMPC36APH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1K5SMPC36APH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1K5SMPC36APH?
1K5SMPC36APH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1K5SMPC36APH 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 1K5SMPC36APH?
For technical support, including 1K5SMPC36APH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1K5SMPC36APH requirements.
6.How does Aetrix verify that 1K5SMPC36APH is sourced from the original manufacturer or authorized distributors?
All 1K5SMPC36APH 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 1K5SMPC36APH meets industry standards.
7.What is the process for return or replacement of 1K5SMPC36APH?
All 1K5SMPC36APH units undergo pre-shipment inspection (PSI). If there is an issue with 1K5SMPC36APH, 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 1K5SMPC36APH part is unused and in its original packaging.
Return procedure for 1K5SMPC36APH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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