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Taiwan Semiconductor Corporation P6SMB27AH
- Part No.:
- P6SMB27AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27AH.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
P6SMB27AH from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a breakdown voltage range of 25.7–28.4 V, clamping voltage of 37.5 V at 16.8 A peak pulse current, and DO-214AA (SMB) package. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the P6SMB27AH datasheet, P6SMB27AH pinout, P6SMB27AH application, or P6SMB27AH equivalent, key selection criteria include standoff voltage (23.1 V), low leakage (<1 µA @ 23.1 V), AEC-Q101 qualification, and thermal resistance (RθJA = 55 °C/W).
Technical Context
The P6SMB27AH uses a glass-passivated silicon junction to achieve fast response (<1.0 ps from 0 V to VBR min) and stable clamping under repetitive surge stress. Its unidirectional configuration provides asymmetric protection with forward voltage drop of 3.5 V at 50 A.
Designed for automotive-grade reliability, it meets JESD201 Class 2 whisker resistance, J-STD-020 moisture sensitivity level 1, and UL 94V-0 flammability rating. Junction temperature range is –55 °C to +150 °C with 10 °C/W junction-to-case thermal resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 25.7 V / 28.4 V - ensures reliable triggering above system operating voltage while avoiding false clamping |
| VWM | 23.1 V - maximum continuous reverse working voltage compatible with 24 V nominal automotive systems |
| VC @ IPPM | 37.5 V at 16.8 A - limits downstream voltage stress during 10/1000 µs transients |
| PPPSM | 600 W - handles high-energy surges per ISO 7637-2 without degradation |
| IR @ VWM | <1 µA - negligible standby power loss and minimal signal interference in sensing circuits |
| TJ max | +150 °C - supports under-hood deployment in engine control units and body electronics |
| RθJA | 55 °C/W - enables thermal management on standard FR-4 PCBs without heatsinking |
Pinout & Package
DO-214AA (SMB) surface-mount package: 3.56 mm × 4.32 mm × 2.10 mm body, matte tin-plated leads, cathode band marking polarity. Weight ≈ 0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connects to system ground or low-side return path during transient clamp event |
| Cathode | Reverse-biased protection terminal | Connects to protected line (e.g., 24 V rail); cathode band identifies polarity on PCB silkscreen |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD HBM/MM |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal cycling and humidity exposure |
| ISO 7637-2 compliance | Guarantees immunity to real-world vehicle electrical disturbances including load dump and inductive switching |
| Low profile SMB package | Enables automated SMT placement and fits space-constrained modules like ADAS camera ECUs and battery management sensors |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU Directive 2011/65/EU for environmentally responsible manufacturing |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in engine control units against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power input and ground to shunt surge energy before reaching LDOs and microcontrollers. Use Value: Clamps transients to ≤37.5 V, preserving operation of downstream 3.3 V/5 V logic powered via buck converters. | Use Scenario: Safeguarding analog front-end inputs of pressure or temperature sensors exposed to ESD in factory automation equipment. IC Role / Device Role / Timing Role: Standoff protection device mounted at connector entry point to absorb ±8 kV contact ESD per IEC 61000-4-2. Use Value: Sub-1 µA leakage avoids DC offset errors in precision 24-bit ADC measurement paths. |
| LED Lighting Driver Protection | Motor Control Board Surge Suppression |
Use Scenario: Shielding constant-current LED drivers in commercial lighting from inductive kickback during dimming MOSFET switching. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output to clamp flyback spikes generated by transformer leakage inductance. Use Value: 600 W peak power rating sustains repeated 10/1000 µs pulses without parametric shift or failure. | Use Scenario: Mitigating voltage spikes induced by brushed DC motor commutation in HVAC blower modules. IC Role / Device Role / Timing Role: Bidirectional protection not applicable; P6SMB27AH used as unidirectional clamp on low-side switch return path. Use Value: 100 A IFSM rating tolerates short-circuit fault currents without bond wire fusing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ27A | Same DO-214AA package, identical VBR (25.7–28.4 V), but lower PPPSM = 600 W (same rating), higher VC = 43.5 V | Higher clamping voltage increases stress on downstream ICs; less suitable for tight 3.3 V rail margins | Select P6SMB27AH when clamping voltage ≤37.5 V is required to meet system-level overvoltage thresholds |
| 1.5SMC27A | DO-214AB (SMC) package - larger footprint (7.11 × 6.22 mm), same electrical specs, higher thermal mass | Requires PCB layout change; preferred where board space allows and higher IFSM (200 A) is needed | Choose P6SMB27AH for space-constrained automotive modules where SMB footprint and AEC-Q101 validation are mandatory |
Compared with SMBJ27A and 1.5SMC27A, the P6SMB27AH delivers tighter clamping (37.5 V vs. 43.5 V), maintains AEC-Q101 qualification in the smaller SMB outline, and offers verified performance under ISO 7637-2 Pulse 2b - critical for modern vehicle network resilience.
Availability
P6SMB27AH is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, LED driver protection, and motor control board surge suppression requiring stable component supply and full traceability.
Supply support for P6SMB27AH 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, rectifiers, and MOSFETs for automotive and industrial markets.
The P6SMB series targets AEC-Q101-compliant transient protection in space-constrained surface-mount applications, emphasizing robustness against ISO 7637-2 pulses and long-term reliability in harsh environments.
FAQ
What is the maximum clamping voltage of the P6SMB27AH under standard test conditions?
The P6SMB27AH has a maximum clamping voltage (VC) of 37.5 V when subjected to its rated peak pulse current (IPPM) of 16.8 A using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees predictable overvoltage limiting for downstream circuitry. The P6SMB27AH achieves this while maintaining sub-1 µA leakage at its 23.1 V standoff voltage.
Is the P6SMB27AH suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the P6SMB27AH is explicitly AEC-Q101 qualified per the manufacturer's documentation. It undergoes stress testing including high-temperature operating life (HTOL), temperature cycling (TCT), and human-body-model ESD (HBM), making it suitable for under-hood and chassis-mounted automotive electronics. The P6SMB27AH also complies with ISO 7637-2 Pulse 1/2a/2b/3a/3b, confirming its readiness for vehicle-level EMC requirements.
What is the package type and mounting compatibility of the P6SMB27AH?
The P6SMB27AH uses the DO-214AA (SMB) surface-mount package - dimensions 3.56 mm × 4.32 mm × 2.10 mm - with matte tin-plated leads compliant with J-STD-002 solderability standards. It supports automated pick-and-place assembly and reflow soldering per J-STD-020 Level 1 moisture sensitivity. The cathode band marking ensures correct orientation during placement, and the P6SMB27AH is compatible with standard SMB footprint land patterns.
How does the P6SMB27AH compare to bidirectional TVS diodes in surge protection design?
The P6SMB27AH is unidirectional and intended for DC power line protection where polarity is fixed - such as 24 V automotive rails. Unlike bidirectional variants (e.g., P6SMB27AH's CAH-suffix counterparts), it does not conduct in reverse bias beyond VWM, eliminating leakage concerns in single-polarity systems. Its forward voltage is 3.5 V at 50 A, enabling use in low-side switch protection schemes where bidirectional devices would compromise DC integrity.
What thermal performance data is specified for the P6SMB27AH?
The P6SMB27AH specifies a junction-to-ambient thermal resistance (RθJA) of 55 °C/W and junction-to-case (RθJC) of 10 °C/W under standard JEDEC test conditions. These values allow accurate thermal modeling on typical two-layer FR-4 PCBs without copper pour enhancement. The P6SMB27AH operates from –55 °C to +150 °C, supporting deployment in engine compartments and industrial enclosures where ambient temperatures exceed 105 °C.
P6SMB27AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 16.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB27AH FAQ
1.How can I place an order for P6SMB27AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27AH 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 P6SMB27AH reliable?
The price and inventory of P6SMB27AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB27AH is usually 5 days.
3.What payment methods are accepted for P6SMB27AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27AH?
P6SMB27AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27AH 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 P6SMB27AH?
For technical support, including P6SMB27AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27AH requirements.
6.How does Aetrix verify that P6SMB27AH is sourced from the original manufacturer or authorized distributors?
All P6SMB27AH 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 P6SMB27AH meets industry standards.
7.What is the process for return or replacement of P6SMB27AH?
All P6SMB27AH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27AH, 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 P6SMB27AH part is unused and in its original packaging.
Return procedure for P6SMB27AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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