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Taiwan Semiconductor Corporation P6SMB27CA
- Part No.:
- P6SMB27CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27CA.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
P6SMB27CA from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a standoff voltage of 23.1 V, breakdown voltage range 25.7–28.4 V, and clamping voltage of 37.5 V at 16.8 A peak pulse current. It protects DC power rails in switching mode power supplies, adapters, and display electronics against ESD and surge events per ISO 7637-2 Pulse 1/2a/2b/3a/3b.
For engineers reviewing the P6SMB27CA datasheet, P6SMB27CA pinout, P6SMB27CA application, or P6SMB27CA equivalent, key selection criteria include bidirectional clamping capability, DO-214AA (SMB) package compatibility, 150°C junction rating, sub-1μA leakage at 23.1 V, and compliance with automotive surge immunity standards.
Technical Context
The P6SMB27CA operates as a bipolar avalanche diode, symmetrically clamping transient overvoltages in both forward and reverse directions. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1 μA at VWM), while the 10/1000 μs waveform-rated 600 W peak pulse power supports robust surge handling in automotive and industrial environments.
Thermal performance is defined by RθJC = 10 °C/W and RθJA = 55 °C/W, enabling reliable operation up to 150 °C junction temperature. The device meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1, supporting lead-free reflow assembly without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 23.1 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 25.7 V / 28.4 V - Breakdown voltage range at 1 mA test current; defines turn-on threshold tolerance |
| VC @ IPPM | 37.5 V at 16.8 A - Clamped voltage during 10/1000 μs surge; determines protected circuit stress level |
| PPPSM | 600 W - Peak pulse power rating; defines single-event surge energy absorption capacity |
| IR @ VWM | <1 μA - Reverse leakage at standoff voltage; ensures minimal standby power loss and signal integrity |
| TJ max | 150 °C - Maximum junction temperature; sets thermal derating boundary for PCB layout and power cycling |
| Package | DO-214AA (SMB) - Surface-mount outline with 0.090 g mass; compatible with automated pick-and-place and IR reflow |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band (not functional in bidirectional configuration). Weight ≈ 0.090 g. Meets UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (marked end) | Transient current entry point (bidirectional) | Functions identically as cathode under reverse surge; no polarity-dependent function in CA variant |
| Cathode (band end) | Transient current exit point (bidirectional) | Functions identically as anode under forward surge; symmetrical conduction enables AC/DC rail protection |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of floating or AC-coupled lines without polarity constraints |
| ISO 7637-2 compliance | Validated for automotive load-dump and supply transients (Pulse 1/2a/2b/3a/3b), reducing system-level validation effort |
| Sub-1 μA leakage @ VWM | Minimizes quiescent current draw in battery-backed or low-power systems |
| 1.0 ps response time | Clamps ESD events faster than most microcontroller I/O protection structures, preserving signal integrity |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally compliant manufacturing |
Applications
| Switching Mode Power Supply (SMPS) | AC-DC Adapter |
|---|---|
Use Scenario: Input rectifier output or DC bus line exposed to line surges and coupling noise. IC Role / Device Role / Timing Role: Transient voltage suppressor providing primary overvoltage clamping on 24 V or 36 V DC rails. Use Value: Limits voltage excursions to ≤37.5 V during 600 W surges, preventing MOSFET gate oxide rupture and controller latch-up. | Use Scenario: Secondary-side DC output line subject to load dump and hot-plug transients. IC Role / Device Role / Timing Role: Bidirectional TVS protecting USB-C PD negotiation lines and 5–20 V output rails. Use Value: Maintains <1 μA leakage at 23.1 V standoff, avoiding false triggering of downstream voltage monitors. |
| Television Power Board | Monitor Backlight Inverter |
Use Scenario: Main 12 V or 19 V supply rail feeding audio/video processing ICs and memory. IC Role / Device Role / Timing Role: Secondary-level surge suppression after bulk filtering, complementing upstream MOVs. Use Value: Withstands repeated 10/1000 μs pulses per IEC 61000-4-5 without parameter drift due to glass passivation. | Use Scenario: High-voltage CCFL or LED driver output stage susceptible to flyback spikes. IC Role / Device Role / Timing Role: Fast-clamping element across transformer secondary or boost capacitor. Use Value: 37.5 V clamping voltage prevents overvoltage damage to PWM controllers and gate drivers operating near 30 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ27CA (Bourns) | Same DO-214AA package, identical 27 V nominal breakdown, but higher VC = 43.5 V at 13.8 A | Lower peak pulse current rating reduces margin in high-energy surge environments | Select SMBJ27CA only when board layout allows higher clamping voltage tolerance |
| 1.5SMC27CA (ON Semiconductor) | Same electrical specs and DO-214AB (SMC) package - larger footprint (7.11 × 6.22 mm vs. 4.57 × 3.94 mm) | Requires PCB redesign; not drop-in compatible due to different pad layout and thermal mass | Choose 1.5SMC27CA only if higher thermal mass is required for sustained surge duty cycles |
Compared with SMBJ27CA and 1.5SMC27CA, the P6SMB27CA delivers tighter VBR tolerance (±5%), lower clamping voltage (37.5 V), and smaller SMB footprint-making it optimal for space-constrained, automotive-grade DC rail protection where precise voltage limiting is critical.
Availability
P6SMB27CA is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and television power boards requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB27CA 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 industrial, computing, and consumer markets.
The P6SMB27CA belongs to TSC's P6SMBx(A) family of 600 W surface-mount TVS diodes designed specifically for cost-sensitive, high-volume surge protection in automotive-compliant power conversion and display electronics.
FAQ
What is the polarity configuration of the P6SMB27CA?
The P6SMB27CA is a bidirectional TVS diode, indicated by the "CA" suffix. It features symmetrical avalanche characteristics in both forward and reverse directions, eliminating the need for orientation-specific placement on PCBs. This makes it ideal for protecting AC-coupled signals or floating DC rails where polarity cannot be guaranteed during surge events. The cathode band marking is retained for consistency but has no functional polarity dependence in the P6SMB27CA.
Does the P6SMB27CA meet automotive surge immunity standards?
Yes, the P6SMB27CA meets ISO 7637-2 requirements for Pulse 1, 2a, 2b, 3a, and 3b, covering typical automotive transient waveforms including load dump, supply interruption, and coupled noise. Its 600 W peak pulse power rating, fast 1.0 ps response time, and 150 °C junction rating make it suitable for under-hood and infotainment power rail protection. Full compliance documentation is provided in Taiwan Semiconductor's Q2209 specification release.
What is the maximum clamping voltage of the P6SMB27CA and at what current is it specified?
The maximum clamping voltage (VC) of the P6SMB27CA is 37.5 V, measured at a peak pulse current (IPPM) of 16.8 A under the standard 10/1000 μs double-exponential waveform. This value represents the upper limit of voltage seen by downstream circuitry during worst-case surge events and is critical for ensuring protected components remain within their absolute maximum ratings.
Can the P6SMB27CA be used in place of a unidirectional TVS like P6SMB27A?
No - the P6SMB27CA and P6SMB27A are not interchangeable without circuit review. The P6SMB27A is unidirectional and conducts only in reverse bias, while the P6SMB27CA clamps in both directions. Substituting the CA version in a unidirectional design may cause unintended conduction during normal forward-biased operation. Always verify schematic polarity and transient directionality before replacement.
What is the moisture sensitivity level (MSL) and reflow profile compatibility of the P6SMB27CA?
The P6SMB27CA is rated MSL Level 1 per J-STD-020, meaning it is not moisture-sensitive and can be subjected to standard lead-free reflow profiles without baking or dry-pack requirements. Its matte tin-plated leads comply with J-STD-002 for solderability, and the DO-214AA package withstands peak temperatures up to 260 °C for 30 seconds, supporting common Pb-free assembly processes.
P6SMB27CA 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:
- -
- Bidirectional Channels:
- 1
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB27CA FAQ
1.How can I place an order for P6SMB27CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27CA 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 P6SMB27CA reliable?
The price and inventory of P6SMB27CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB27CA is usually 5 days.
3.What payment methods are accepted for P6SMB27CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27CA?
P6SMB27CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27CA 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 P6SMB27CA?
For technical support, including P6SMB27CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27CA requirements.
6.How does Aetrix verify that P6SMB27CA is sourced from the original manufacturer or authorized distributors?
All P6SMB27CA 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 P6SMB27CA meets industry standards.
7.What is the process for return or replacement of P6SMB27CA?
All P6SMB27CA units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27CA, 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 P6SMB27CA part is unused and in its original packaging.
Return procedure for P6SMB27CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB27CA Tags
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