Taiwan Semiconductor Corporation P6SMB200CAH
- Part No.:
- P6SMB200CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB200CAH.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AA
- Quantity:
- Payment:

- Shipping:

Inventory:7,862
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Product details
Overview
P6SMB200CAH from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, with a minimum breakdown voltage of 190 V, maximum clamping voltage of 274 V at 2.2 A peak pulse current, and standoff voltage of 171 V. It is AEC-Q101 qualified and designed for automotive ESD and ISO 7637-2 pulse protection in power supply rails and signal lines.
For engineers reviewing the P6SMB200CAH datasheet, P6SMB200CAH pinout, P6SMB200CAH application, or P6SMB200CAH equivalent, key selection criteria include bidirectional clamping performance, 150°C junction rating, low leakage (<1 µA @ 171 V), fast sub-1 ps response, and compliance with automotive transients including Pulse 1/2a/2b/3a/3b.
Technical Context
The P6SMB200CAH uses a glass-passivated silicon junction to achieve stable bidirectional avalanche clamping across both polarities. Its thermal design supports 150°C max junction temperature with RθJC = 10°C/W and RθJA = 55°C/W, enabling reliable operation under high-energy transients without derating below 25°C ambient.
It meets ISO 7637-2 test requirements for automotive electrical systems, delivering consistent clamping at 274 V under 10/1000 µs waveform while maintaining <1 µA reverse leakage at 171 V standoff - critical for low-power sensor and control circuit protection where quiescent current integrity matters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 190 V / 210 V - defines guaranteed avalanche conduction onset range under 1 mA test current |
| VWM | 171 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 274 V @ 2.2 A - peak clamped voltage during 10/1000 µs surge, limiting downstream voltage stress |
| PPPSM | 600 W - non-repetitive peak pulse power handling capability per standard waveform |
| IR @ VWM | <1 µA - ensures negligible standby current draw in always-on automotive modules |
| TJ max | +150°C - enables placement near hot components like power MOSFETs or DC/DC converters |
| Response time | <1.0 ps - ensures clamping activation before transient energy couples into sensitive IC inputs |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode band marking; symmetrical bidirectional structure means no polarity-dependent orientation required for PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (marked band) | Bidirectional avalanche junction terminal | Functions identically in either direction; band denotes conventional cathode but irrelevant for AC/transient clamping |
| Case (exposed metal slug) | Thermal path to PCB copper | Provides primary heat dissipation route; requires adequate thermal pad area per JESD51-7 |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood and body-control module environments including temperature cycling and humidity exposure |
| Glass passivated junction | Ensures long-term stability of breakdown voltage and leakage under thermal stress and humidity |
| ISO 7637-2 compliance | Guarantees robustness against real-world automotive load-dump and inductive-switching transients (Pulse 1/2a/2b/3a/3b) |
| Moisture sensitivity level 1 | Enables direct placement without baking; compatible with standard SMT reflow profiles per J-STD-020 |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained applications |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed at main power input to clamp surges before they reach LDOs, microcontrollers, and CAN transceivers. Use Value: Limits voltage to ≤274 V during 600 W pulses, preventing latch-up or permanent damage to downstream 3.3 V/5 V logic. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to ADC inputs in harsh industrial settings. IC Role / Device Role / Timing Role: Low-leakage TVS on differential or single-ended signal lines to absorb EFT bursts without distorting mV-level signals. Use Value: Sub-1 µA leakage at 171 V ensures no measurable offset or gain error in precision measurement paths. |
| Lighting System Surge Suppression | Motor Drive Control Signal Clamping |
Use Scenario: Protecting LED driver ICs and MOSFET gate drivers in automotive headlamps exposed to switching noise and ESD. IC Role / Device Role / Timing Role: Fast-response TVS on PWM input lines and feedback sensing nodes to prevent false triggering or overvoltage shutdown. Use Value: Sub-1 ps response ensures clamping initiates before transient edge propagates into timing-critical control loops. | Use Scenario: Shielding H-bridge gate drive signals from inductive kickback when controlling brushed or BLDC motors. IC Role / Device Role / Timing Role: Bidirectional clamping on half-bridge enable or PWM lines to suppress cross-conduction risks caused by voltage overshoot. Use Value: Symmetrical 190–210 V breakdown allows identical protection for rising/falling edges in push-pull configurations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ200CA | Same DO-214AA package, 600 W rating, VBR = 212–235 V, VC = 324 V @ 1.85 A | Higher clamping voltage reduces margin for 200 V-rated downstream components | Select when higher VBR tolerance is acceptable and system ground bounce allows >320 V transient ceiling |
| 1.5SMC200CA | DO-214AB (SMC) package, larger footprint, same VBR/VC specs, 1500 W rating | Requires PCB redesign due to 7.11 mm × 6.22 mm vs. SMB's 4.57 mm × 3.94 mm; suited for higher-energy events | Choose only if system-level testing confirms need for >600 W pulse handling and board space permits larger package |
Compared with SMBJ200CA and 1.5SMC200CA, the P6SMB200CAH offers tighter VBR tolerance (190–210 V), lower clamping (274 V), and smaller SMB footprint - making it optimal for space-constrained automotive modules requiring precise voltage limiting without layout change.
Availability
P6SMB200CAH is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, LED lighting systems, and motor control circuits requiring stable component supply across extended temperature ranges and high-reliability production cycles.
Supply support for P6SMB200CAH 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 automotive-qualified components since 1979.
The P6SMB200CAH belongs to TSC's AEC-Q101-qualified P6SMB series, engineered specifically for robust transient immunity in automotive power distribution and signal conditioning subsystems.
FAQ
What is the maximum clamping voltage of the P6SMB200CAH under standard 10/1000 µs surge conditions?
The P6SMB200CAH has a maximum clamping voltage of 274 V when subjected to its rated 2.2 A peak pulse current (IPPM) using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that downstream circuitry sees no more than 274 V during standardized surge events - critical for protecting 200 V-class capacitors and MOSFETs in automotive power stages.
Is the P6SMB200CAH suitable for bidirectional transient protection without polarity concerns?
Yes, the P6SMB200CAH is a bidirectional TVS diode with symmetrical avalanche characteristics in both directions. Its CAH suffix explicitly denotes bipolar configuration, meaning it clamps equally for positive and negative transients - eliminating the need for orientation-aware placement and simplifying layout for AC-coupled or floating signal lines.
Does the P6SMB200CAH meet automotive reliability standards?
Yes, the P6SMB200CAH is AEC-Q101 qualified and tested per ISO 7637-2 for Pulse 1, 2a, 2b, 3a, and 3b transients. It also complies with JESD201 Class 2 whisker resistance, J-STD-020 moisture sensitivity Level 1, and RoHS/halogen-free requirements - confirming suitability for under-hood and body-control module deployment.
What is the standoff voltage (VWM) of the P6SMB200CAH, and why does it matter?
The P6SMB200CAH has a standoff voltage (VWM) of 171 V - the maximum DC or continuous reverse voltage it can block without exceeding 1 µA leakage. This parameter ensures compatibility with 170 V nominal systems (e.g., 24 V automotive with 6× load dump margin) while maintaining ultra-low quiescent current, preserving battery life in always-on modules.
Can the P6SMB200CAH be used in place of unidirectional TVS diodes like P6SMB200H?
No - the P6SMB200CAH is strictly bidirectional and not a drop-in replacement for unidirectional variants such as P6SMB200H. While both share the same package and power rating, the unidirectional version conducts only in reverse bias and requires correct cathode orientation; substituting them risks failure during positive transients or forward conduction in DC-biased circuits.
P6SMB200CAH 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):
- 171V
- Voltage - Breakdown (Min):
- 190V
- Voltage - Clamping (Max) @ Ipp:
- 274V
- Current - Peak Pulse (10/1000µs):
- 2.2A
- 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)
P6SMB200CAH FAQ
1.How can I place an order for P6SMB200CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB200CAH 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 P6SMB200CAH reliable?
The price and inventory of P6SMB200CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB200CAH is usually 5 days.
3.What payment methods are accepted for P6SMB200CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB200CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB200CAH?
P6SMB200CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB200CAH 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 P6SMB200CAH?
For technical support, including P6SMB200CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB200CAH requirements.
6.How does Aetrix verify that P6SMB200CAH is sourced from the original manufacturer or authorized distributors?
All P6SMB200CAH 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 P6SMB200CAH meets industry standards.
7.What is the process for return or replacement of P6SMB200CAH?
All P6SMB200CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB200CAH, 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 P6SMB200CAH part is unused and in its original packaging.
Return procedure for P6SMB200CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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