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Taiwan Semiconductor Corporation P6SMB9.1H
- Part No.:
- P6SMB9.1H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB9.1H.pdf
- Description:
- 600W, 9.1V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,002
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Product details
Overview
P6SMB9.1H from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a breakdown voltage range of 8.19–10.00 V, stand-off voltage of 7.37 V, and clamping voltage of 13.8 V at 45 A peak pulse current. It features glass-passivated junction, AEC-Q101 qualification, and is designed for automotive and industrial ESD/inductive load transient protection in DC power rails and signal lines.
For engineers reviewing the P6SMB9.1H datasheet, P6SMB9.1H pinout, P6SMB9.1H application, or P6SMB9.1H equivalent, key selection criteria include its 600W peak pulse power rating, 13.8 V clamping performance at 45 A, DO-214AA (SMB) package compatibility, and AEC-Q101 qualification for automotive-grade reliability under ISO 7637-2 Pulse 1/2a/2b/3a/3b stress conditions.
Technical Context
The P6SMB9.1H operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its minimum breakdown voltage (8.19 V) at 1.0 mA test current. Its fast response time (<1.0 ps) ensures suppression before sensitive downstream circuitry sustains damage from EFT or load-switching transients.
Thermal performance is defined by RθJC = 10 °C/W and RθJA = 55 °C/W, enabling reliable operation up to TJ = 150 °C. 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 |
|---|---|
| VBR (min/max) | 8.19–10.00 V: Ensures reliable triggering above 7.37 V system operating voltage while avoiding false conduction. |
| VWM | 7.37 V: Maximum continuous reverse working voltage - sets safe DC rail margin for 5–6 V logic or 9 V automotive systems. |
| VC @ IPPM | 13.8 V at 45 A: Clamped voltage during 10/1000 µs surge - protects 12 V-rated ICs (e.g., CAN transceivers, microcontrollers) from overvoltage. |
| PPPSM | 600 W: Peak pulse power handling per 10/1000 µs waveform - supports robust immunity against ISO 7637-2 Pulse 1 (inductive load dump) and Pulse 2b (battery disconnect). |
| IR @ VWM | <50 µA: Low leakage preserves battery life in always-on automotive modules and avoids false wake-up in low-power sensor nodes. |
| TJ max | 150 °C: Enables placement near heat sources (e.g., power MOSFETs, motor drivers) without derating in under-hood applications. |
| Package | DO-214AA (SMB): Standardized 4.5 × 3.9 mm SMT footprint - compatible with high-speed pick-and-place and IPC-7351B land patterns. |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, cathode band marking polarity, UL 94V-0 flammability rating, and 0.090 g typical weight. Designed for automated placement and reflow soldering per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / Ground reference | Connected to system ground or low-side return; defines unidirectional conduction direction from cathode to anode during surge. |
| Cathode | Transient voltage clamp input | Connected to protected line (e.g., 12 V rail, LIN bus); avalanche conduction begins here when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - enables use in engine control units, body controllers, and ADAS sensors without additional qualification. |
| Glass passivated junction | Enhances long-term stability and moisture resistance - critical for under-hood reliability and extended service life in humid environments. |
| Clamping voltage ≤13.8 V | Guarantees safe overvoltage margin for 12 V nominal systems - prevents latch-up or gate oxide damage in connected MOSFETs, MCUs, and transceivers. |
| Response time <1.0 ps | Enables sub-nanosecond reaction to ESD events - suppresses transients before propagation into high-speed data lines or analog front-ends. |
| ISO 7637-2 compliance | Meets Pulse 1 (inductive load), Pulse 2a/2b (supply transients), and Pulse 3a/3b (switching noise) - satisfies OEM EMC validation requirements. |
Applications
| Automotive Power Rail Protection | LIN Bus Transient Suppression |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple during ignition cycling and accessory switching. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and local regulator input to clamp surges before LDO or DC-DC stage. Use Value: Withstands 600 W pulses and clamps to 13.8 V, preventing overvoltage failure of 16 V-rated regulators and preserving system uptime across temperature. | Use Scenario: Shielding LIN transceiver pins from EFT bursts and cable coupling noise in door modules and seat controls. IC Role / Device Role / Timing Role: Low-capacitance TVS on LIN data line (unidirectional configuration) to absorb ±30 kV ESD and 10/1000 µs transients without signal distortion. Use Value: 13.8 V clamping ensures LIN physical layer remains within ±40 V absolute max rating while maintaining <50 µA leakage for accurate biasing. |
| Industrial Sensor Node Protection | LED Driver Output Clamp |
Use Scenario: Safeguarding 3.3 V/5 V I/O of microcontrollers in factory-floor sensors exposed to relay coil kickback and motor drive noise. IC Role / Device Role / Timing Role: TVS on digital input/output lines to shunt inductive spikes away from GPIO pins and internal ESD structures. Use Value: 7.37 V stand-off allows full 5 V logic swing; 13.8 V clamping prevents latch-up in ARM Cortex-M peripherals during 4 kV EFT testing. | Use Scenario: Preventing overvoltage damage to LED driver ICs and strings during hot-plug events or open-circuit faults in automotive lighting. IC Role / Device Role / Timing Role: TVS placed across LED string output to clamp flyback voltage from inductive energy storage in buck/boost converters. Use Value: 600 W rating absorbs energy from 100–200 mJ inductive spikes; 13.8 V clamping limits stress on 15 V-rated driver FETs and current-sense amplifiers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A | Bi-directional configuration; 9.0 V nominal VBR; same 600 W rating and DO-214AA package. | Required where bidirectional surge protection is needed (e.g., AC-coupled data lines, differential buses). | Select SMBJ9.0A only if symmetrical clamping in both polarities is required; P6SMB9.1H offers lower leakage and tighter VBR tolerance for unidirectional DC rails. |
| 1.5SMC9.0A | Same VBR range and unidirectional function but in larger DO-214AB (SMC) package (7.1 × 6.2 mm vs. 4.5 × 3.9 mm). | Used where higher thermal mass or legacy board space permits larger footprint. | Choose 1.5SMC9.0A only when PCB layout accommodates SMC size and higher RθJA (40 °C/W) is acceptable; P6SMB9.1H provides identical electrical performance in space-constrained designs. |
Compared with SMBJ9.0A and 1.5SMC9.0A, the P6SMB9.1H delivers AEC-Q101 qualification, tighter VBR tolerance (±11%), and optimized thermal resistance (RθJA = 55 °C/W) in the compact DO-214AA package - making it preferred for new automotive and space-limited industrial designs requiring verified reliability.
Availability
P6SMB9.1H is available at Aetrix Electronics and suitable for automotive ECU protection, LIN bus interface hardening, and industrial sensor node surge immunity requiring stable component supply and AEC-Q101-compliant sourcing.
Supply support for P6SMB9.1H 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 automotive, industrial, and consumer markets.
The P6SMB9.1H belongs to TSC's AEC-Q101-qualified P6SMB series of 600 W surface-mount TVS diodes, engineered specifically for robust transient immunity in harsh automotive environments and high-reliability industrial control systems.
FAQ
What is the breakdown voltage range of the P6SMB9.1H?
The P6SMB9.1H has a guaranteed breakdown voltage range of 8.19 V to 10.00 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range ensures reliable turn-on above 7.37 V stand-off voltage while accommodating process variation - a key parameter for designing margin into 9 V or 12 V power rail protection circuits using the P6SMB9.1H.
Is the P6SMB9.1H suitable for automotive applications?
Yes, the P6SMB9.1H is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements. Its glass-passivated junction, MSL1 moisture rating, and 150 °C maximum junction temperature make it suitable for under-hood and body-control module applications - confirming its suitability for production automotive use as specified in the official P6SMB9.1H datasheet.
What is the clamping voltage of the P6SMB9.1H at its rated peak pulse current?
The P6SMB9.1H clamps to a maximum of 13.8 V at 45 A peak pulse current (10/1000 µs waveform). This value is measured under standardized surge conditions and defines the upper voltage limit imposed on protected circuitry - critical for ensuring compatibility with 12 V system components such as CAN transceivers, microcontrollers, and voltage regulators used alongside the P6SMB9.1H.
Does the P6SMB9.1H have polarity markings, and how is it oriented on the PCB?
Yes, the P6SMB9.1H uses a DO-214AA (SMB) package with a visible cathode band marking. The banded end is the cathode and must be connected to the line being protected (e.g., 12 V rail), while the anode connects to ground. This unidirectional orientation ensures proper avalanche conduction during positive transients - a mandatory layout requirement confirmed in the P6SMB9.1H mechanical drawings and application notes.
What packaging and reel quantity is available for the P6SMB9.1H?
The P6SMB9.1H is supplied in tape-and-reel format with 3,000 units per reel, compliant with EIA-481 standards. This packaging supports automated SMT assembly and is consistent across the full P6SMBxH family - enabling seamless integration into high-volume manufacturing workflows for customers procuring the P6SMB9.1H through Aetrix Electronics.
P6SMB9.1H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.37V
- Voltage - Breakdown (Min):
- 8.19V
- Voltage - Clamping (Max) @ Ipp:
- 13.8V
- Current - Peak Pulse (10/1000µs):
- 45A
- 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)
P6SMB9.1H FAQ
1.How can I place an order for P6SMB9.1H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB9.1H 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 P6SMB9.1H reliable?
The price and inventory of P6SMB9.1H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB9.1H is usually 5 days.
3.What payment methods are accepted for P6SMB9.1H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB9.1H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB9.1H?
P6SMB9.1H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB9.1H 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 P6SMB9.1H?
For technical support, including P6SMB9.1H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB9.1H requirements.
6.How does Aetrix verify that P6SMB9.1H is sourced from the original manufacturer or authorized distributors?
All P6SMB9.1H 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 P6SMB9.1H meets industry standards.
7.What is the process for return or replacement of P6SMB9.1H?
All P6SMB9.1H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB9.1H, 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 P6SMB9.1H part is unused and in its original packaging.
Return procedure for P6SMB9.1H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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