My Inquiry
My Account
Taiwan Semiconductor Corporation P6SMB27C
- Part No.:
- P6SMB27C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27C.pdf
- Description:
- 600W, 27V, 10%, BIDIRECTIONAL, T
- Quantity:
- Payment:
- Shipping:
Inventory:6,145
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB27C from Taiwan Semiconductor is a bidirectional transient voltage suppressor diode in DO-214AA (SMB) package, designed for surge protection in DC power rails and signal lines. It features a 27 V breakdown voltage (VBR min/max = 24.3–29.7 V), 21.8 V standoff voltage (VWM), 39.1 V clamping voltage at 16 A peak pulse current, 600 W peak pulse power rating, and <1 µA reverse leakage at VWM. It is used in switching mode power supplies and consumer electronics to protect downstream ICs from ESD and lightning-induced transients.
For engineers reviewing the P6SMB27C datasheet, P6SMB27C pinout, P6SMB27C application, or P6SMB27C equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, unidirectional vs. bidirectional configuration (C suffix denotes bidirectional), thermal derating above 25°C, and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive-grade transient immunity.
Technical Context
The P6SMB27C operates as a voltage-clamped avalanche diode, activating when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5% for 'A' grade; P6SMB27C is non-A, so ±10%), and fast response time (<1.0 ps) enables suppression before sensitive circuitry sustains damage. It conducts surge current through the low-impedance avalanche path while limiting voltage across the protected node to ≤39.1 V.
Designed for surface-mount automated assembly, it meets J-STD-020 moisture sensitivity level 1 and JESD 201 class 2 whisker resistance. Its DO-214AA package provides 10 °C/W junction-to-case thermal resistance and supports 100 A non-repetitive forward surge current (8.3 ms half-sine), making it suitable for high-energy transient environments without external heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 24.3 V / 29.7 V - defines guaranteed avalanche initiation range under 1.0 mA test current; determines minimum overvoltage threshold before clamping begins |
| VWM | 21.8 V - maximum continuous reverse operating voltage; must exceed system nominal DC rail (e.g., 24 V bus) to avoid leakage conduction during normal operation |
| VC @ IPPM | 39.1 V at 16 A - clamped voltage during 10/1000 µs surge; must stay below protected IC's absolute maximum input rating (e.g., 40 V for many 3.3 V/5 V interface ICs) |
| PPPSM | 600 W - peak pulse power handling per 10/1000 µs waveform; sets energy absorption capacity for single-event transients like ESD or load dump |
| IR @ VWM | <1 µA - reverse leakage at standoff voltage; ensures negligible standby power loss and no false triggering on stable DC rails |
| TJ max | +150 °C - maximum junction temperature; allows operation in high-ambient industrial or under-hood automotive environments with appropriate PCB copper area |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, bi-directional configuration with cathode band omitted (bidirectional symmetry). Case outline conforms to JEDEC DO-214AA standard; terminals are matte tin-plated for solderability per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Connected to ground or common reference; completes low-impedance surge shunt path during either polarity overvoltage event |
| Cathode | Transient return path (bidirectional) | Electrically identical to anode in bidirectional construction; no polarity marking required; both terminals function symmetrically |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., RS-485, CAN bus) without polarity concerns |
| ISO 7637-2 compliance | Validated against automotive transient standards Pulse 1 (inductive load disconnect), Pulse 2a/2b (battery connection/disconnection), and Pulse 3a/3b (switching noise), supporting automotive ECUs |
| Low-profile SMB package | Height ≤2.6 mm enables use in space-constrained consumer devices (TVs, monitors, adapters) while maintaining 600 W surge capability |
| Moisture sensitivity level 1 | Eliminates bake requirements prior to reflow; supports standard SMT assembly without special handling or dry pack |
Applications
| Switching Mode Power Supply (SMPS) | Consumer Display Electronics |
|---|---|
Use Scenario: Protection of 24 V DC output rail in offline AC/DC adapter against line surges and inductive kickback from transformer leakage. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed between output rail and ground, acting as last-line defense before downstream DC-DC converters and microcontrollers. Use Value: Clamps transients to ≤39.1 V, ensuring protected 24 V-rated regulators and logic remain within safe operating area during 600 W surge events. | Use Scenario: Input port surge protection on HDMI or USB-C power delivery lines in flat-panel TVs and monitors exposed to ESD and cable-borne transients. IC Role / Device Role / Timing Role: Bidirectional transient suppressor bridging VBUS and GND, absorbing ±15 kV contact ESD (IEC 61000-4-2) and 10/1000 µs line surges. Use Value: Symmetrical clamping prevents signal distortion on differential pairs; low leakage (<1 µA) avoids interference with high-impedance hot-plug detection circuits. |
| Automotive Body Control Module | Industrial Sensor Interface |
Use Scenario: Protection of LIN bus transceivers and power supply inputs in door module ECUs subjected to battery load dump and jump-start transients. IC Role / Device Role / Timing Role: Primary surge clamp on 12 V main rail and LIN signal line, meeting ISO 7637-2 Pulse 1 (−100 V/50 Ω/2 Ω) and Pulse 2b (+100 V/50 Ω). Use Value: Withstands 100 A surge current (8.3 ms) and clamps to 39.1 V, preventing latch-up or destruction of 3.3 V/5 V LIN transceivers downstream. | Use Scenario: Protection of 4–20 mA current loop transmitter outputs against field wiring faults and induced lightning surges in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across loop terminals (V+ and V−), shunting surge energy away from precision DAC and op-amp output stages. Use Value: 21.8 V standoff allows full 20 mA loop compliance voltage (≤24 V) while clamping to 39.1 V preserves analog accuracy and avoids saturation of current-sense resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ27CA | ±5% VBR tolerance (A-grade), 37.5 V clamping at 16.8 A, same DO-214AA package | Higher precision breakdown improves consistency in tightly regulated systems; lower VC margin benefits 3.3 V/5 V logic protection | Select SMBJ27CA when tighter VBR tolerance and lower clamping voltage are required for high-reliability industrial control. |
| 1.5SMC27C | Same VBR/VWM/VC, but DO-214AB (SMC) package - larger footprint (7.11 × 6.22 mm vs. 4.57 × 3.94 mm) and higher thermal mass | Lower RθJA (40 °C/W vs. 55 °C/W) supports higher average power dissipation in high-duty-cycle surge environments | Choose 1.5SMC27C where board space permits and enhanced thermal performance is needed for repetitive surge exposure. |
Compared with P6SMB27C, SMBJ27CA offers tighter breakdown tolerance and lower clamping voltage for improved precision protection, while 1.5SMC27C trades smaller size for better thermal handling-making P6SMB27C optimal for space-constrained, single-event surge applications in consumer and automotive modules.
Availability
P6SMB27C is available at Aetrix Electronics and suitable for switching mode power supplies, consumer display electronics, and automotive body control modules requiring stable component supply and ISO 7637-2 compliance.
Supply support for P6SMB27C 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, including TVS diodes, rectifiers, and MOSFETs, with global distribution and AEC-Q101 qualified product lines.
The P6SMB series targets cost-sensitive, high-volume surge protection applications in consumer, industrial, and automotive markets, emphasizing robustness, automated assembly compatibility, and standardized compliance (RoHS, halogen-free, J-STD-020 Level 1).
FAQ
What does the 'C' suffix indicate in P6SMB27C?
The 'C' suffix in P6SMB27C denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P6SMB27), P6SMB27C has no cathode marking and functions identically in either orientation-ideal for AC-coupled lines such as RS-485, CAN, or audio interfaces where polarity is undefined or alternating.
What is the maximum clamping voltage of P6SMB27C and how is it measured?
The maximum clamping voltage of P6SMB27C is 39.1 V, measured at a peak pulse current (IPPM) of 16 A using the standard 10/1000 µs double-exponential surge waveform. This value represents the highest voltage that will appear across the device terminals during a worst-case transient event, and it is critical for ensuring protected downstream components remain within their absolute maximum voltage ratings.
Does P6SMB27C meet automotive transient immunity standards?
Yes, P6SMB27C meets ISO 7637-2 requirements for automotive applications, specifically Pulses 1 (inductive load dump), 2a/2b (battery disconnection/reconnection), and 3a/3b (capacitive coupling and switching noise). Its 600 W peak pulse power rating and verified clamping behavior under these waveforms make it suitable for protecting ECUs, sensors, and communication interfaces in passenger vehicles and commercial vehicles.
How does the DO-214AA (SMB) package of P6SMB27C compare thermally to larger packages like SMC?
The DO-214AA (SMB) package of P6SMB27C has a junction-to-ambient thermal resistance (RθJA) of 55 °C/W, higher than the ~40 °C/W of DO-214AB (SMC) packages like 1.5SMC27C. This means P6SMB27C relies more on PCB copper area for heat dissipation and is best suited for single-event or low-duty-cycle surge scenarios rather than repetitive high-energy transients where sustained thermal management is critical.
Is P6SMB27C RoHS compliant and halogen-free?
Yes, P6SMB27C is RoHS compliant and halogen-free in accordance with IEC 61249-2-21. The molding compound meets UL 94V-0 flammability rating, and the matte tin-plated leads comply with J-STD-002 for solderability-ensuring environmental compliance and reliability in lead-free reflow processes used across consumer, industrial, and automotive manufacturing.
P6SMB27C 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):
- 21.8V
- Voltage - Breakdown (Min):
- 24.3V
- Voltage - Clamping (Max) @ Ipp:
- 39.1V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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)
P6SMB27C FAQ
1.How can I place an order for P6SMB27C through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27C 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 P6SMB27C reliable?
The price and inventory of P6SMB27C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB27C is usually 5 days.
3.What payment methods are accepted for P6SMB27C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27C?
P6SMB27C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27C 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 P6SMB27C?
For technical support, including P6SMB27C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27C requirements.
6.How does Aetrix verify that P6SMB27C is sourced from the original manufacturer or authorized distributors?
All P6SMB27C 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 P6SMB27C meets industry standards.
7.What is the process for return or replacement of P6SMB27C?
All P6SMB27C units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27C, 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 P6SMB27C part is unused and in its original packaging.
Return procedure for P6SMB27C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB27C Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
