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Taiwan Semiconductor Corporation P6SMB9.1CH
- Part No.:
- P6SMB9.1CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB9.1CH.pdf
- Description:
- 600W, 9.1V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,843
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Product details
Overview
P6SMB9.1CH 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, clamping voltage of 13.8 V at 45 A peak pulse current, and stand-off voltage of 7.37 V. It features glass-passivated junction, AEC-Q101 qualification, and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump and EFT immunity.
For engineers reviewing the P6SMB9.1CH datasheet, P6SMB9.1CH pinout, P6SMB9.1CH application, or P6SMB9.1CH equivalent, key selection criteria include unidirectional polarity, DO-214AA (SMB) package compatibility, 1.0 mA test current for VBR, ≤1 μA leakage at VWM, and thermal resistance of 55 °C/W (junction-to-ambient).
Technical Context
The P6SMB9.1CH operates as a unidirectional clamping TVS diode, triggered when reverse voltage exceeds its 8.19–10.00 V breakdown range. Its fast response time (<1.0 ps from 0 V to VBR(min)) enables protection against nanosecond-scale transients such as ESD and EFT.
Designed for automotive-grade reliability, it supports junction temperatures from –55 °C to +150 °C, exhibits 0.068 %/°C temperature coefficient of VBR, and delivers 13.8 V clamping at 45 A under 10/1000 μs waveform - critical for safeguarding CAN, LIN, and sensor interface ICs against inductive switching surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.19 V / 10.00 V - defines reliable conduction onset window under 1.0 mA test current |
| VWM | 7.37 V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPPM | 13.8 V at 45 A - peak clamped voltage during 10/1000 μs surge, limiting stress on downstream ICs |
| PPPSM | 600 W - non-repetitive peak pulse power handling per JEDEC standard waveform |
| IR @ VWM | <1 μA - ultra-low reverse leakage ensures minimal standby power loss in battery-critical systems |
| TJ(max) | +150 °C - enables operation in under-hood automotive environments without derating |
| RθJA | 55 °C/W - thermal resistance determines required PCB copper area for sustained 3 W dissipation |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, single-diode configuration with cathode band marking. Matte tin-plated leads, RoHS and halogen-free compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or low-side return path in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., CAN_H, LIN, sensor supply); conducts during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress-test requirements including temperature cycling, HTRB, and ESD |
| Glass passivated junction | Enhances long-term reliability and stability of VBR under humidity and thermal cycling |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (EFT) waveforms |
| Low-profile SMB package | Enables automated placement and fits space-constrained automotive ECUs and ADAS modules |
| Junction-to-ambient RθJA | 55 °C/W allows thermal management using standard 1 oz. copper PCB land patterns without heatsinks |
Applications
| Automotive Power Line Protection | CAN Bus Transient Suppression |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontrollers and power management ICs from load-dump spikes up to 35 V in engine control units. IC Role / Device Role: Unidirectional clamping TVS placed between VBAT rail and GND, shunting surge energy before it reaches LDOs or MCUs. Use Value: Limits clamped voltage to 13.8 V, well below typical 16 V absolute max ratings of automotive PMICs and MCUs. | Use Scenario: Safeguarding high-speed CAN transceivers (e.g., TJA1042, SN65HVD230) against ESD and coupled transients on differential bus lines. IC Role / Device Role: Paired unidirectional TVS diodes (one per line) referenced to common-mode ground, absorbing common-mode surges. Use Value: Sub-14 V clamping preserves signal integrity and prevents latch-up in CAN PHYs during ISO 7637-2 Pulse 3b events. |
| LED Lighting Driver Input Protection | Industrial Sensor Signal Line Guarding |
Use Scenario: Shielding constant-current LED drivers (e.g., AL8863, MPQ4425) from inductive kickback during MOSFET switching in automotive headlamps. IC Role / Device Role: Placed across driver input terminals to clamp flyback voltage spikes generated by boost inductor discharge. Use Value: 600 W peak power rating handles repetitive 10/1000 μs pulses without degradation, extending driver lifetime. | Use Scenario: Securing analog output sensors (e.g., pressure, temperature) connected via long cables in factory automation cabinets exposed to relay switching noise. IC Role / Device Role: Mounted at connector entry point to absorb fast-rising transients before they couple into ADC front-ends or op-amp buffers. Use Value: 1.0 mA VBR test current ensures precise threshold alignment with 5–10 V sensor supply rails and reference voltages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A | Bi-directional configuration; VBR = 10.0–11.1 V; same 600 W rating and DO-214AA package | Supports AC-coupled or bidirectional signal lines (e.g., USB D+/D−, RS-485), unlike unidirectional P6SMB9.1CH | Select SMBJ9.0A only when symmetrical clamping in both polarities is required; not drop-in for unidirectional DC rail protection. |
| 1.5SMC9.0A | Same VBR range and unidirectional function but in larger DO-214AB (SMC) package; RθJA = 35 °C/W | Higher thermal mass supports higher average power in industrial motor drives where PCB space permits | Choose 1.5SMC9.0A when ambient temperature exceeds 105 °C or when >3 W steady-state dissipation is anticipated. |
Compared with SMBJ9.0A and 1.5SMC9.0A, the P6SMB9.1CH offers optimal fit for space-constrained, unidirectional 12 V automotive rails - balancing low-profile SMB footprint, AEC-Q101 validation, and precise 7.37 V stand-off for legacy 5 V logic-compatible interfaces.
Availability
P6SMB9.1CH is available at Aetrix Electronics and suitable for automotive ECU design, CAN/LIN bus protection, and LED driver input safeguarding requiring stable component supply across production lifecycles.
Supply support for P6SMB9.1CH 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, and automotive-qualified power devices.
The P6SMB9.1CH belongs to TSC's AEC-Q101-qualified P6SMBxH series, engineered specifically for robust transient suppression in automotive power distribution networks and body electronics modules.
FAQ
What is the polarity configuration of the P6SMB9.1CH?
The P6SMB9.1CH is a unidirectional TVS diode, with cathode marked by a band on the DO-214AA (SMB) package. It conducts only when reverse-biased above its breakdown voltage (8.19–10.00 V), making it suitable for DC rail clamping where polarity is fixed - such as 12 V battery inputs in automotive ECUs. The "CH" suffix confirms unidirectional construction per TSC's ordering nomenclature.
Does the P6SMB9.1CH meet automotive qualification standards?
Yes, the P6SMB9.1CH is AEC-Q101 qualified and explicitly tested to ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b waveforms. Its glass-passivated junction, –55 °C to +150 °C operating range, and JESD201 Class 2 whisker resistance confirm suitability for under-hood and chassis-mounted automotive applications. TSC documentation (Version A2102) lists full qualification evidence for the P6SMBxH family, including P6SMB9.1CH.
What is the maximum clamping voltage of the P6SMB9.1CH under surge conditions?
The P6SMB9.1CH has a maximum clamping voltage (VC) of 13.8 V at 45 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on protected circuitry during worst-case transients - ensuring compatibility with ICs rated for ≤16 V absolute maximum input.
How does the P6SMB9.1CH compare to the P6SMB9.1AH variant?
The P6SMB9.1CH and P6SMB9.1AH share identical electrical specs (VBR = 8.19–10.00 V, VC = 13.8 V, VWM = 7.37 V), but differ in marking code (KLJ vs. KMJ) and tighter VBR tolerance: P6SMB9.1AH specifies 8.65–9.55 V min/max, while P6SMB9.1CH covers 8.19–10.00 V. Both are unidirectional and AEC-Q101 qualified; selection depends on required VBR consistency in high-volume production.
Is the P6SMB9.1CH compatible with lead-free reflow soldering processes?
Yes, the P6SMB9.1CH uses matte tin-plated leads compliant with J-STD-002 for solderability and is rated for moisture sensitivity level 1 (MSL-1) per J-STD-020 - meaning it can be stored indefinitely at ≤30 °C/60% RH and withstand standard Pb-free reflow profiles (peak 260 °C) without baking. Its molding compound also meets UL 94V-0 flammability requirements.
P6SMB9.1CH 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:
- -
- Bidirectional Channels:
- 1
- 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)
P6SMB9.1CH FAQ
1.How can I place an order for P6SMB9.1CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB9.1CH 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 P6SMB9.1CH reliable?
The price and inventory of P6SMB9.1CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB9.1CH is usually 5 days.
3.What payment methods are accepted for P6SMB9.1CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB9.1CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB9.1CH?
P6SMB9.1CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB9.1CH 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 P6SMB9.1CH?
For technical support, including P6SMB9.1CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB9.1CH requirements.
6.How does Aetrix verify that P6SMB9.1CH is sourced from the original manufacturer or authorized distributors?
All P6SMB9.1CH 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 P6SMB9.1CH meets industry standards.
7.What is the process for return or replacement of P6SMB9.1CH?
All P6SMB9.1CH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB9.1CH, 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 P6SMB9.1CH part is unused and in its original packaging.
Return procedure for P6SMB9.1CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB9.1CH Tags
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