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Taiwan Semiconductor Corporation P6SMB100CAH
- Part No.:
- P6SMB100CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB100CAH.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
P6SMB100CAH from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a standoff voltage of 85.5 V, breakdown voltage range of 95–105 V, and clamping voltage of 137 V at 4.5 A peak pulse current. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients in DO-214AA (SMB) package.
For engineers reviewing the P6SMB100CAH datasheet, P6SMB100CAH pinout, P6SMB100CAH application, or P6SMB100CAH equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance data, clamping performance under 10/1000 µs surge, and real-world ESD/inductive switching protection use cases.
Technical Context
The P6SMB100CAH is a bipolar TVS diode designed for symmetrical transient suppression in both forward and reverse directions, with identical electrical characteristics in each polarity. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1 µA at 85.5 V), while its 10/1000 µs waveform rating supports high-energy automotive load-dump and inductive-switching events.
Thermally, it features a junction-to-case resistance of 10 °C/W and junction-to-ambient resistance of 55 °C/W, enabling reliable operation up to +150 °C junction temperature. It meets JESD201 Class 2 whisker resistance and moisture sensitivity level 1 per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 85.5 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC rail margin. |
| VBR (min/max) | 95 / 105 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold. |
| VC @ IPPM | 137 V at 4.5 A - Clamped voltage during 10/1000 µs surge; determines protected circuit's maximum stress exposure. |
| PPPM | 600 W - Peak pulse power handling capability; validates immunity to ISO 7637-2 Pulse 2b (50 V, 100 ms) and similar transients. |
| IR @ VWM | <1 µA - Reverse leakage at rated standoff voltage; minimizes standby power loss in battery-powered systems. |
| TJ max | +150 °C - Maximum junction temperature; supports under-hood automotive placement without derating. |
| RθJA | 55 °C/W - Junction-to-ambient thermal resistance; informs PCB copper area requirements for thermal management. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, bi-directional configuration with cathode band omitted (symmetrical terminals). Matte tin-plated leads, RoHS and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (End without marking band) | Transient current entry point in reverse bias | Accepts surge energy from either direction; no polarity dependency due to bidirectional design. |
| Cathode (End without marking band) | Transient current exit point in reverse bias | Completes low-impedance path to ground/rail during clamping; identical function to anode in bipolar mode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per stress test conditions. |
| Glass-passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced parameter drift in harsh environments. |
| Fast response time <1 ps | Clamps transients before sensitive downstream ICs experience overstress-critical for protecting CAN/LIN bus receivers and microcontrollers. |
| Meets ISO 7637-2 Pulse 1/2a/2b/3a/3b | Complies with full suite of automotive transient immunity standards, including load dump (Pulse 5a/b not covered) and coupled noise pulses. |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking; eliminates production delays and moisture-related popcorning risk. |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 12 V/24 V battery-fed ECUs exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional clamping device placed across power input to shunt surge energy to ground before reaching LDOs or MCU power pins. Use Value: Limits transient voltage to ≤137 V during 10/1000 µs surges, preventing latch-up or permanent damage to 16 V-rated regulators and 5 V logic supplies. | Use Scenario: Digital input modules receiving signals from 24 V sensors in factory automation. IC Role / Device Role / Timing Role: Front-end transient suppressor on dry-contact or PNP/NPN sensor inputs to absorb inductive kickback and EFT bursts. Use Value: Withstands ≥4.5 A peak pulse current while holding clamped voltage below 137 V, preserving optocoupler CTR and input comparator integrity. |
| LED Driver Overvoltage Protection | Telecom Power Interface Protection |
Use Scenario: Constant-current LED drivers in street lighting subjected to lightning-induced surges on AC mains or DC bus lines. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output or input capacitor to clamp line transients before they reach MOSFET gate drivers or current-sense amplifiers. Use Value: 600 W peak power rating absorbs multi-cycle 10/1000 µs pulses without degradation, maintaining LED string reliability over 10+ year field life. | Use Scenario: 48 V DC power feed to remote telecom units exposed to induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary-level surge protector on DC input stage upstream of DC/DC converters and PoE controllers. Use Value: Clamps 48 V rail transients to ≤137 V with <1 µA leakage, minimizing standby current draw while meeting IEC 61000-4-5 Level 3 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA | Same DO-214AA package, 600 W rating, but VBR min/max = 105–116 V and VC = 154 V @ 3.9 A. | Higher clamping voltage reduces system margin; suitable where 154 V stress is acceptable on downstream 16 V-rated components. | Select SMBJ100CA only if layout allows higher clamping tolerance and thermal budget permits lower IPPM. |
| 1.5SMC100CA | Higher power (1500 W), larger DO-214AB (SMC) package, VBR = 105–116 V, VC = 154 V @ 9.7 A. | Requires PCB redesign due to larger footprint and higher mounting height; used where multi-pulse or repeated surge endurance is critical. | Choose 1.5SMC100CA when system must survive >1000 surges or operate in high-temperature enclosures exceeding 125 °C ambient. |
Compared with SMBJ100CA and 1.5SMC100CA, the P6SMB100CAH offers tighter VBR tolerance (95–105 V vs. 105–116 V), lower clamping voltage (137 V vs. 154 V), and smaller SMB footprint-making it optimal for space-constrained automotive modules requiring precise voltage limiting and AEC-Q101 compliance.
Availability
P6SMB100CAH is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC I/O hardening, and LED driver overvoltage suppression requiring stable component supply, AEC-Q101 qualification, and DO-214AA surface-mount compatibility.
Supply support for P6SMB100CAH 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 automotive-qualified components.
The P6SMB series belongs to TSC's AEC-Q101-qualified transient suppression portfolio, engineered specifically for robust, low-leakage, fast-response protection in automotive power distribution and industrial control systems.
FAQ
What is the clamping voltage of the P6SMB100CAH under standard 10/1000 µs surge conditions?
The P6SMB100CAH has a maximum clamping voltage (VC) of 137 V at 4.5 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and reflects the actual voltage seen by downstream circuitry during transient events-critical for ensuring compatibility with 16 V-rated power management ICs and microcontroller IO stages in automotive designs using the P6SMB100CAH.
Is the P6SMB100CAH unidirectional or bidirectional, and how does that affect PCB layout?
The P6SMB100CAH is a bidirectional TVS diode, meaning it provides symmetrical clamping in both polarities without polarity marking or orientation dependency. Unlike unidirectional variants (e.g., P6SMB100H), the P6SMB100CAH has no cathode band and can be mounted in either direction on the PCB-simplifying assembly and eliminating orientation errors during automated placement. This symmetry is confirmed in the datasheet's "Devices for Bipolar Applications" section and applies directly to the P6SMB100CAH.
Does the P6SMB100CAH meet AEC-Q101 requirements for automotive use?
Yes, the P6SMB100CAH is explicitly AEC-Q101 qualified per the manufacturer's documentation. It undergoes stress testing including high-temperature reverse bias (HTRB), temperature cycling, and mechanical shock-all validated for automotive under-hood and body-control module applications. This qualification is stated in the FEATURES section of the official Taiwan Semiconductor datasheet for the P6SMB100CAH and is not inferred or derived from family-level data.
What is the maximum steady-state power dissipation (Ptot) of the P6SMB100CAH at 25°C ambient?
The P6SMB100CAH has a steady-state power dissipation (Ptot) rating of 3 W at TA = 25°C, as specified in the Absolute Maximum Ratings table. This value defines the continuous DC or low-frequency power the device can safely dissipate without exceeding its 150°C maximum junction temperature. In practice, the P6SMB100CAH is intended for transient-only suppression-not continuous conduction-so Ptot serves primarily as a thermal boundary for rare sustained overvoltage conditions.
How does the P6SMB100CAH compare to the P6SMB100AH in terms of breakdown voltage and application suitability?
The P6SMB100CAH is the bidirectional version of the P6SMB100AH, which is unidirectional. Both share identical VBR (95–105 V), VWM (85.5 V), and VC (137 V) specifications, but the P6SMB100CAH clamps equally in both directions while the P6SMB100AH only protects against reverse-polarity transients. Therefore, the P6SMB100CAH is required in AC-coupled or floating-rail applications-such as differential signal lines or dual-supply systems-where bidirectional surge immunity is mandatory, unlike the P6SMB100AH which suffices for standard DC power rail protection.
P6SMB100CAH 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):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 4.5A
- 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)
P6SMB100CAH FAQ
1.How can I place an order for P6SMB100CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB100CAH 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 P6SMB100CAH reliable?
The price and inventory of P6SMB100CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB100CAH is usually 5 days.
3.What payment methods are accepted for P6SMB100CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB100CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB100CAH?
P6SMB100CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB100CAH 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 P6SMB100CAH?
For technical support, including P6SMB100CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB100CAH requirements.
6.How does Aetrix verify that P6SMB100CAH is sourced from the original manufacturer or authorized distributors?
All P6SMB100CAH 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 P6SMB100CAH meets industry standards.
7.What is the process for return or replacement of P6SMB100CAH?
All P6SMB100CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB100CAH, 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 P6SMB100CAH part is unused and in its original packaging.
Return procedure for P6SMB100CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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