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Taiwan Semiconductor Corporation 1K5SMPC30APH
- Part No.:
- 1K5SMPC30APH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
1K5SMPC30APH.pdf
- Description:
- 1500W, 30V, 5%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:5,997
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Product details
Overview
1K5SMPC30APH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in TO-277A (SMPC4.6U) package, rated for 1500 W peak pulse power (10/1000 µs), 30.0 V breakdown voltage (VBR), and 41.4 V clamping voltage (VC) at 36.2 A peak surge current - deployed in automotive BLDC motor control and battery management systems.
For engineers reviewing the 1K5SMPC30APH datasheet, 1K5SMPC30APH pinout, 1K5SMPC30APH application, or 1K5SMPC30APH equivalent, key selection criteria include unidirectional polarity, IEC 61000-4-2 Level 4 / ISO 10605 L4 ESD robustness, ISO 7637-2 Pulse 1/2a/2b/3a/3b 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 downstream circuitry against fast transients and ESD events. Its 30.0 V nominal breakdown voltage (min 28.5 V, max 31.5 V at 1.0 mA) ensures precise overvoltage thresholding, while the 41.4 V clamping voltage at 36.2 A IPPM guarantees safe voltage limiting during surge conditions.
Thermally, it supports operation from −55 °C to +175 °C junction temperature with RθJL = 6.4 °C/W and RθJC = 8.9 °C/W, enabling high-power transient suppression on compact PCB layouts using standard 16 mm × 16 mm copper pads per JEDEC test methodology.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 / 30.0 / 31.5 V at 1.0 mA - defines precise overvoltage trip point with ±5% tolerance for reliable system-level protection coordination |
| VWM | 25.6 V - maximum continuous reverse working voltage; sets safe DC operating margin below breakdown |
| VC @ IPPM | 41.4 V at 36.2 A - clamped voltage during 10/1000 µs surge; determines protected IC's voltage stress limit |
| PPPM | 1500 W - non-repetitive peak pulse power handling; enables robust immunity to ISO 7637-2 Pulse 1/2a/2b/3a/3b |
| RθJL | 6.4 °C/W - junction-to-lead thermal resistance; supports high surge duty cycles without thermal runaway on standard PCB copper |
| αT | 0.088 %/°C - temperature coefficient of VBR; allows accurate VBR derating across −55 °C to +175 °C operating range |
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 under forward bias; cathode-side reference for clamping | Connected to protected line (e.g., motor phase, battery rail); establishes unidirectional conduction path toward cathodes |
| Cathode 1 (Pin 1) | Clamping output terminal (common cathode node) | Internally tied to Cathode 2; provides low-inductance return path to ground or low-impedance reference plane |
| Cathode 2 (Pin 2) | Clamping output terminal (common cathode node) | Electrically identical to Pin 1; dual-cathode layout improves current sharing and thermal distribution during high-IPPM |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per AEC specification |
| IEC 61000-4-2 Level 4 & ISO 10605 L4 compliant | Withstands ±15 kV air discharge and ±8 kV contact discharge without degradation - meets OEM ESD requirements |
| ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity | Clamps induced transients from load dump, inductive switching, and supply line disturbances in vehicle networks |
| TO-277A (SMPC4.6U) package with dual cathodes | Enables 36.2 A surge current handling and improved thermal dissipation vs. single-cathode SMC packages |
Applications
| BLDC Motor Phase Protection | Battery Management System (BMS) Input Protection |
|---|---|
Use Scenario: Installed across motor phase-to-ground in 12–48 V automotive BLDC drives to suppress commutation spikes and load dump transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device absorbing energy from inductive kickback and ISO 7637-2 Pulse 2b/3b events. Use Value: Limits voltage to ≤41.4 V during 36.2 A surges, preventing gate oxide damage to MOSFET drivers and Hall sensor ICs. | Use Scenario: Placed at main battery input of 12 V/24 V BMS modules to protect analog front-end, MCU, and CAN transceivers. IC Role / Device Role / Timing Role: Primary overvoltage clamp responding within nanoseconds to ESD and load dump pulses. Use Value: Maintains VWM = 25.6 V standoff while clamping to 41.4 V - preserves system functionality during 1500 W transient events. |
| Automotive Lighting Driver Protection | On-Board Charger (OBC) DC Link Protection |
Use Scenario: Mounted across LED driver output rails in adaptive front-lighting systems (AFS) subject to PWM-induced transients and ESD. IC Role / Device Role / Timing Role: Fast-response unidirectional suppressor safeguarding constant-current LED controllers and current-sense amplifiers. Use Value: 0.088 %/°C VBR tempco ensures stable clamping threshold across −40 °C to +125 °C ambient lighting environments. | Use Scenario: Applied across DC link capacitors in 3.3 kW OBCs to absorb regenerative energy spikes and ISO 7637-2 Pulse 1/3a transients. IC Role / Device Role / Timing Role: High-energy transient limiter placed between PFC stage and inverter bridge inputs. Use Value: 1500 W PPPM rating and RθJL = 6.4 °C/W enable repeated surge handling without thermal derating in confined OBC enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | DO-214AC (SMA) package; 600 W PPPM; VC = 48.4 V at 24.5 A; RθJA = 110 °C/W | Lower surge rating and higher clamping voltage; less suitable for ISO 7637-2 Pulse 1/2b in automotive | Select 1K5SMPC30APH when 1500 W surge immunity and AEC-Q101 qualification are required. |
| 1.5KE30A | DO-201AD (T-18) axial lead; 1500 W PPPM; VC = 43.5 V at 34.5 A; not AEC-Q101 qualified | Through-hole mounting only; no automotive qualification; unsuitable for automated SMT production | Choose 1K5SMPC30APH for surface-mount automotive designs requiring AEC-Q101 and TO-277A thermal performance. |
Compared with SMAJ30A and 1.5KE30A, the 1K5SMPC30APH delivers superior surge capability in a qualified SMT package with lower clamping voltage, better thermal resistance, and guaranteed automotive reliability - making it optimal for space-constrained, high-reliability vehicle subsystems.
Availability
1K5SMPC30APH is available at Aetrix Electronics and suitable for automotive BLDC motor control, battery management systems, adaptive lighting, and on-board charger designs requiring stable component supply, AEC-Q101 compliance, and repeatable 1500 W transient immunity.
Supply support for 1K5SMPC30APH 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers for automotive and industrial markets.
The 1K5SMPCxxAPH series was engineered specifically for AEC-Q101-compliant automotive transient suppression, targeting high-energy ISO 7637-2 and ESD threats in BLDC drives, BMS, and lighting systems.
FAQ
What is the breakdown voltage tolerance of the 1K5SMPC30APH?
The 1K5SMPC30APH has a specified breakdown voltage (VBR) range of 28.5 V to 31.5 V at 1.0 mA test current, yielding a ±5% tolerance around the nominal 30.0 V value. This tight tolerance ensures consistent overvoltage triggering across production lots and supports precise coordination with downstream protection circuits in automotive ECUs and motor controllers.
Is the 1K5SMPC30APH suitable for bidirectional transient suppression?
No, the 1K5SMPC30APH is a unidirectional TVS diode, designed for clamping positive transients relative to ground. Its polarity is fixed - anode (Pin 3) connects to the protected line, cathodes (Pins 1 & 2) to ground. For bidirectional protection, two 1K5SMPC30APH devices would need back-to-back configuration, but TSC does not recommend this; instead, use a dedicated bidirectional part such as 1K5SMPC30CA.
Does the 1K5SMPC30APH meet automotive ESD standards?
Yes, the 1K5SMPC30APH meets IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) and ISO 10605 Level L4 (±15 kV air, ±8 kV contact) ESD requirements. It is also AEC-Q101 qualified, confirming robustness across temperature cycling, HTRB, and mechanical stress tests mandated for automotive electronics.
What is the maximum junction temperature rating for the 1K5SMPC30APH?
The 1K5SMPC30APH has a maximum junction temperature (TJMAX) of +175 °C and operates across −55 °C to +175 °C. This wide range supports deployment in under-hood automotive environments and high-temperature industrial motor drives, where sustained thermal stress must be managed via its RθJL = 6.4 °C/W and RθJC = 8.9 °C/W thermal metrics.
How is the 1K5SMPC30APH packaged and delivered?
The 1K5SMPC30APH is supplied in TO-277A (SMPC4.6U) surface-mount package and shipped in tape-and-reel format - 6,000 units per reel. The package features matte tin-plated leads compliant with J-STD-002 solderability standards and meets JESD 201 Class 2 whisker resistance requirements for long-term reliability in automotive assemblies.
1K5SMPC30APH 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 36.2A
- 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
1K5SMPC30APH FAQ
1.How can I place an order for 1K5SMPC30APH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1K5SMPC30APH 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 1K5SMPC30APH reliable?
The price and inventory of 1K5SMPC30APH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1K5SMPC30APH is usually 5 days.
3.What payment methods are accepted for 1K5SMPC30APH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1K5SMPC30APH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1K5SMPC30APH?
1K5SMPC30APH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1K5SMPC30APH 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 1K5SMPC30APH?
For technical support, including 1K5SMPC30APH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1K5SMPC30APH requirements.
6.How does Aetrix verify that 1K5SMPC30APH is sourced from the original manufacturer or authorized distributors?
All 1K5SMPC30APH 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 1K5SMPC30APH meets industry standards.
7.What is the process for return or replacement of 1K5SMPC30APH?
All 1K5SMPC30APH units undergo pre-shipment inspection (PSI). If there is an issue with 1K5SMPC30APH, 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 1K5SMPC30APH part is unused and in its original packaging.
Return procedure for 1K5SMPC30APH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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