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Taiwan Semiconductor Corporation P6SMB27CH
- Part No.:
- P6SMB27CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27CH.pdf
- Description:
- 600W, 27V, 10%, BIDIRECTIONAL, T
- Quantity:
- Payment:
- Shipping:
Inventory:3,256
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Product details
Overview
P6SMB27CH from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, rated for 600W peak pulse power, 24.3–29.7V breakdown voltage (VBR), and 39.1V maximum clamping voltage (VC) at 16A peak pulse current. It protects automotive and industrial electronics against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the P6SMB27CH datasheet, P6SMB27CH pinout, P6SMB27CH application, or P6SMB27CH equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 1.0mA test current, ≤1μA reverse leakage at 21.8V stand-off voltage, and compliance with J-STD-020 moisture sensitivity level 1.
Technical Context
The P6SMB27CH is a glass-passivated, unidirectional/bidirectional TVS diode optimized for fast transient suppression in automotive and industrial systems. Its junction-to-case thermal resistance is 10°C/W and junction-to-ambient is 55°C/W, enabling reliable operation up to +150°C junction temperature.
Designed for bidirectional use (denoted by "CH" suffix), it delivers symmetrical electrical characteristics in both polarities - including matched VBR min/max, identical VC, and uniform clamping behavior - meeting ISO 7637-2 immunity requirements without polarity-sensitive layout constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 24.3V / 29.7V - Ensures consistent avalanche initiation across production lots under 1.0mA test current |
| VWM | 21.8V - Maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 39.1V at 16A - Clamps induced surges to safe levels for downstream 24V-rated ICs and controllers |
| IPPM | 16A - Peak surge current capability with 10/1000μs waveform, derated above 25°C ambient |
| PPPSM | 600W - Non-repetitive peak pulse power handling per single transient event |
| TJ max | +150°C - Enables deployment in under-hood automotive environments and high-power industrial enclosures |
| Package | DO-214AA (SMB) - Surface-mount footprint compatible with automated assembly and IPC-7351B standard land patterns |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band (bidirectional operation eliminates functional polarity dependence). Weight ≈ 0.090g. Meets UL 94V-0 flammability rating and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | No functional distinction between terminals; either side accepts positive or negative surge energy |
| Cathode band marking | Manufacturing polarity indicator only | Present for traceability but electrically irrelevant in CH-series bidirectional configuration |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal and humidity stress |
| Fast response time | <1.0ps rise time from 0V to VBR min - limits voltage overshoot during nanosecond-scale transients |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) waveforms |
| Moisture sensitivity level 1 | Zero bake requirement prior to reflow; supports standard SMT assembly without floor-life restrictions |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 24V battery rail in engine control units exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional clamping element placed upstream of LDOs, CAN transceivers, and microcontrollers. Use Value: Limits transient excursions to ≤39.1V, preventing latch-up or gate oxide damage in 3.3V/5V logic powered from regulated 24V supplies. | Use Scenario: RS-485/RS-232 communication lines in factory automation PLCs subject to EFT bursts. IC Role / Device Role / Timing Role: Primary surge shunt on differential bus lines, positioned adjacent to connector entry points. Use Value: Clamps common-mode surges within 1ps, preserving signal integrity and avoiding false triggering of receiver thresholds. |
| LED Driver Input Stage Protection | Motor Control Board DC Bus Protection |
Use Scenario: Constant-current LED drivers in commercial lighting fixtures subjected to lightning-induced surges on AC input rectified to 24–48V DC. IC Role / Device Role / Timing Role: Standoff protection device across bulk capacitor input, absorbing repetitive 600W pulses. Use Value: Maintains VWM = 21.8V margin above nominal 24V rail while surviving >1000 surges per ISO 7637-2 test profile. | Use Scenario: H-bridge motor driver boards with 24V DC bus experiencing inductive kickback from brushed DC motors. IC Role / Device Role / Timing Role: Parallel-connected TVS across bus rails to clamp flyback spikes before they reach gate drivers and FETs. Use Value: Dissipates 600W peak energy in <1ms, limiting bus overvoltage to 39.1V and preventing MOSFET avalanche failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ27CA | Same DO-214AA package, 27V nominal VBR, but rated for 600W with 38.9V VC @ 16.8A; slightly lower clamping voltage | Identical ISO 7637-2 compliance and AEC-Q101 qualification; minor VC variance affects margin for 24V system ICs | Select SMBJ27CA if tighter clamping tolerance (<0.2V lower) is required for legacy 24V rail designs with minimal headroom |
| 1.5SMC27CA | Larger DO-214AB (SMC) package, same 27V VBR range, 38.9V VC @ 16.8A, higher thermal mass (RθJA = 35°C/W vs. 55°C/W) | Better sustained surge handling in high-temperature environments (>85°C ambient); requires larger PCB area | Choose 1.5SMC27CA when board-level thermal management is constrained and peak pulse repetition rate exceeds 1 Hz |
Compared with SMBJ27CA and 1.5SMC27CA, the P6SMB27CH offers identical electrical performance in a smaller DO-214AA footprint and lower cost-per-unit, making it optimal for space-constrained automotive modules where thermal derating is managed via copper pour and airflow.
Availability
P6SMB27CH is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, LED driver input stage protection, and motor control board DC bus protection requiring stable component supply and AEC-Q101-compliant surge immunity.
Supply support for P6SMB27CH 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, MOSFETs, and power management devices.
The P6SMB27CH belongs to TSC's AEC-Q101-qualified P6SMBxCH series - engineered specifically for robust transient suppression in automotive and harsh-environment industrial applications where reliability under voltage stress and thermal cycling is critical.
FAQ
What does the "CH" suffix indicate in P6SMB27CH?
The "CH" suffix denotes bidirectional configuration: the P6SMB27CH provides symmetrical clamping in both forward and reverse directions, with identical VBR, VC, and leakage characteristics across polarity. This eliminates orientation concerns during placement and ensures consistent protection against positive and negative transients - a key requirement for automotive data lines and floating DC buses. The P6SMB27CH achieves this via internal dual-die architecture.
Is P6SMB27CH compliant with AEC-Q101 and ISO 7637-2?
Yes, the P6SMB27CH is fully AEC-Q101 qualified and explicitly certified to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test profiles. Its 600W peak pulse rating, 39.1V clamping voltage, and sub-1ps response time were validated under these standards during qualification. Documentation confirms compliance in Taiwan Semiconductor's official A2102 revision datasheet - no external test reports are needed to confirm conformance for P6SMB27CH.
What is the maximum clamping voltage of P6SMB27CH and how is it measured?
The maximum clamping voltage of P6SMB27CH is 39.1V, measured at 16A peak pulse current (IPPM) using a 10/1000μs double-exponential waveform per Figure 3 in the datasheet. This value represents worst-case voltage seen by protected circuitry during a standardized surge event. It is guaranteed across temperature (−55°C to +150°C) and production lot, with no derating required below 25°C ambient - a critical spec for protecting 24V-system logic ICs with 40V absolute maximum ratings.
Can P6SMB27CH replace unidirectional P6SMB27H in existing designs?
No - the P6SMB27CH cannot directly replace unidirectional P6SMB27H without layout review. Though both share identical VBR, VC, and package, the P6SMB27CH has no functional anode/cathode distinction and lacks polarity-dependent forward conduction. If the original design relies on forward-biased operation (e.g., as a crowbar or polarity guard), substituting P6SMB27CH will compromise functionality. Use only where bidirectional clamping is intended and circuit topology is symmetric.
What is the moisture sensitivity level (MSL) and reflow profile for P6SMB27CH?
The P6SMB27CH is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and requires no dry-pack or baking prior to reflow soldering. It supports standard lead-free reflow profiles with peak temperature up to 260°C, and its matte tin-plated leads comply with J-STD-002 for solderability. The DO-214AA molding compound meets UL 94V-0, ensuring flame resistance during thermal excursions - verified across all production lots of P6SMB27CH.
P6SMB27CH 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB27CH FAQ
1.How can I place an order for P6SMB27CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27CH 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 P6SMB27CH reliable?
The price and inventory of P6SMB27CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB27CH is usually 5 days.
3.What payment methods are accepted for P6SMB27CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27CH?
P6SMB27CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27CH 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 P6SMB27CH?
For technical support, including P6SMB27CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27CH requirements.
6.How does Aetrix verify that P6SMB27CH is sourced from the original manufacturer or authorized distributors?
All P6SMB27CH 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 P6SMB27CH meets industry standards.
7.What is the process for return or replacement of P6SMB27CH?
All P6SMB27CH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27CH, 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 P6SMB27CH part is unused and in its original packaging.
Return procedure for P6SMB27CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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