My Inquiry
My Account
Taiwan Semiconductor Corporation P6SMB9.1C
- Part No.:
- P6SMB9.1C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB9.1C.pdf
- Description:
- 600W, 9.1V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:5,832
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB9.1C from Taiwan Semiconductor is a bidirectional 600W transient voltage suppressor (TVS) diode designed for overvoltage protection in DC power rails and signal lines. It features a breakdown voltage range of 8.19–10.00 V at 1.0 mA test current, clamps to ≤13.8 V at 45 A peak pulse current, and operates within -55°C to +150°C junction temperature range - deployed in switching mode power supplies and consumer display interfaces.
For engineers reviewing the P6SMB9.1C datasheet, P6SMB9.1C pinout, P6SMB9.1C application, or P6SMB9.1C equivalent, key selection criteria include unidirectional/bidirectional configuration (C suffix = bidirectional), DO-214AA package compatibility, 7.37 V stand-off voltage, <1 μA leakage at VWM, and ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance for automotive-grade surge immunity.
Technical Context
The P6SMB9.1C implements a glass-passivated silicon avalanche junction optimized for fast transient suppression with sub-nanosecond response (<1.0 ps from 0 V to VBR min). Its bidirectional architecture enables symmetrical clamping in both polarities without external polarity management, supporting robust protection in AC-coupled or floating bus applications.
Thermally, it delivers RθJC = 10°C/W and RθJA = 55°C/W, enabling reliable operation under repetitive surge conditions when mounted on standard PCB copper areas. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements for surface-mount reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.19 V / 10.00 V at IT = 1.0 mA - defines guaranteed avalanche initiation window for predictable clamping onset |
| VWM | 7.37 V - maximum continuous reverse operating voltage before significant leakage begins |
| IPPM | 45 A (10/1000 μs waveform) - peak surge current handling capacity before clamping voltage exceeds 13.8 V |
| VC@IPPM | 13.8 V - maximum clamped voltage during rated surge, limiting downstream IC stress |
| ID@VWM | ≤50 μA - low leakage ensures minimal standby power loss in battery-backed or high-impedance circuits |
| TJ max | +150°C - supports operation in thermally constrained enclosures such as enclosed power adapters |
| Package | DO-214AA (SMB) - industry-standard SMT footprint with 0.090 g mass and matte tin-plated leads per J-STD-002 |
Pinout & Package
DO-214AA (SMB) surface-mount package: cathode band marked on one end; bidirectional symmetry means no functional anode/cathode designation - terminals are electrically identical in both directions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (marked side) | Common connection point | Electrically symmetric - serves as either polarity input depending on transient direction; no fixed anode/cathode assignment |
| Terminal 2 (unmarked side) | Common connection point | Paired with Terminal 1 to form bidirectional clamping path; polarity-agnostic for AC or floating rail protection |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals or differential buses without polarity routing constraints |
| ISO 7637-2 compliance | Validated against automotive load dump and coupled transient pulses (Pulse 1/2a/2b/3a/3b) for in-vehicle deployment |
| Low leakage & high VBR stability | ≤50 μA @ 7.37 V and 0.068 %/°C tempco ensure stable threshold across temperature and low system quiescent current |
| Fast response time | <1.0 ps rise-to-breakdown enables suppression of ESD and fast-rising transients before sensitive circuitry reacts |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS directives for environmentally regulated industrial and consumer products |
Applications
| Switching Mode Power Supply (SMPS) | TV Power Input Stage |
|---|---|
Use Scenario: Protection of primary-side rectifier output and secondary-side DC bus against line surges and inductive kickback. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed across bulk capacitor or MOSFET drain-source to limit transient overvoltage. Use Value: Clamps 600W surges to ≤13.8 V while maintaining <50 μA leakage, preserving efficiency and preventing MOSFET avalanche failure. | Use Scenario: Input-stage surge suppression on 12 V or 24 V DC power entry of flat-panel TVs subjected to lightning-induced coupling. IC Role / Device Role / Timing Role: Bidirectional front-end protector absorbing common-mode transients on unregulated DC input before DC-DC converters. Use Value: Symmetrical 8.19–10.00 V breakdown and ISO 7637-2 Pulse 1/2a/2b compliance ensure immunity to automotive-grade transients in home entertainment systems. |
| Monitor DC Adapter Interface | USB-C Power Delivery Line |
Use Scenario: Overvoltage safeguard on 19 V adapter input of LCD monitors exposed to plug-in/out transients and shared-rail coupling. IC Role / Device Role / Timing Role: Standoff-rated (7.37 V) TVS shunting surges before linear regulators or buck controllers. Use Value: 13.8 V clamping prevents latch-up in 12 V logic rails; DO-214AA footprint allows placement adjacent to connector with minimal trace inductance. | Use Scenario: Secondary-side transient protection on USB-C VBUS lines where ±20 V surges may occur during hot-plug or cable fault events. IC Role / Device Role / Timing Role: Bidirectional clamp between VBUS and ground, leveraging C-suffix symmetry to handle polarity-reversal faults. Use Value: Sub-1 ps response captures fast ESD events; 45 A IPPM rating covers IEC 61000-4-5 Level 4 surge requirements for USB PD ecosystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA (Bourns) | 9.0 V nominal VBR, 600 W rating, same DO-214AA package but 10.5 V VC@IPPM vs. 13.8 V for P6SMB9.1C | Lower clamping voltage suits tighter-tolerance 5 V/9 V rail protection; higher cost and longer lead time than P6SMB9.1C | Select SMBJ9.0CA when clamping headroom below 11 V is required; verify thermal derating curves differ slightly |
| 1.5KE9.1C (ON Semiconductor) | Through-hole DO-15 package, same 9.1 V VBR range but 1.5 kW rating and 14.4 V VC; not SMT-compatible | Used in legacy designs or high-energy surge zones where board space allows axial-leaded mounting | Choose 1.5KE9.1C only for through-hole assembly or where >600 W single-pulse energy is needed; incompatible with automated SMT lines |
Compared with SMBJ9.0CA and 1.5KE9.1C, the P6SMB9.1C offers optimal balance of SMT manufacturability, 600 W surge capability, and 7.37 V standoff in compact DO-214AA - making it preferred for space-constrained, high-volume consumer power interfaces where moderate clamping voltage is acceptable.
Availability
P6SMB9.1C is available at Aetrix Electronics and suitable for switching mode power supplies, TV power inputs, and monitor DC adapter interfaces requiring stable component supply and automotive-grade transient immunity.
Supply support for P6SMB9.1C 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 power management components since 1979.
The P6SMB9.1C belongs to TSC's P6SMBx series of surface-mount TVS diodes engineered for high-reliability surge suppression in consumer, industrial, and automotive auxiliary power systems - emphasizing low-profile packaging, ISO 7637-2 compliance, and tight parametric consistency.
FAQ
What is the polarity configuration of the P6SMB9.1C?
The P6SMB9.1C is a bidirectional TVS diode indicated by the "C" suffix, meaning it provides symmetrical clamping in both forward and reverse directions. Unlike unidirectional variants (e.g., P6SMB9.1), the P6SMB9.1C has no designated anode or cathode - both terminals behave identically, simplifying layout for AC-coupled or floating signal lines. This configuration is confirmed in the device marking code MUJ and electrical specifications table.
Does the P6SMB9.1C meet automotive surge standards?
Yes, the P6SMB9.1C meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements for transient immunity in automotive 12 V systems. This is explicitly stated in the FEATURES section of the official Taiwan Semiconductor datasheet (Version Q2209), confirming its suitability for infotainment power inputs, display modules, and body control unit interfaces where load-dump and inductive-switching transients occur.
What is the maximum clamping voltage of the P6SMB9.1C at rated surge current?
The P6SMB9.1C has a maximum clamping voltage (VC) of 13.8 V at 45 A peak pulse current (10/1000 μs waveform), as specified in the ELECTRICAL SPECIFICATIONS table. This value represents the upper limit of voltage seen by downstream circuitry during a full-rated 600 W transient event, ensuring protected ICs remain within safe operating voltage margins.
Is the P6SMB9.1C RoHS and halogen-free compliant?
Yes, the P6SMB9.1C is RoHS compliant and halogen-free per IEC 61249-2-21, as documented in the FEATURES section of the Taiwan Semiconductor datasheet. The molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated per J-STD-002 - satisfying environmental and solderability requirements for modern electronics manufacturing.
What is the thermal resistance profile of the P6SMB9.1C?
The P6SMB9.1C has a junction-to-case thermal resistance (RθJC) of 10°C/W and junction-to-ambient thermal resistance (RθJA) of 55°C/W, per the THERMAL PERFORMANCE table. These values assume standard PCB mounting with adequate copper pour; they enable accurate thermal modeling for surge duty-cycle derating and ensure reliable operation up to +150°C junction temperature in enclosed power adapters.
P6SMB9.1C 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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB9.1C FAQ
1.How can I place an order for P6SMB9.1C through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB9.1C 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 P6SMB9.1C reliable?
The price and inventory of P6SMB9.1C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB9.1C is usually 5 days.
3.What payment methods are accepted for P6SMB9.1C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB9.1C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB9.1C?
P6SMB9.1C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB9.1C 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 P6SMB9.1C?
For technical support, including P6SMB9.1C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB9.1C requirements.
6.How does Aetrix verify that P6SMB9.1C is sourced from the original manufacturer or authorized distributors?
All P6SMB9.1C 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 P6SMB9.1C meets industry standards.
7.What is the process for return or replacement of P6SMB9.1C?
All P6SMB9.1C units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB9.1C, 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 P6SMB9.1C part is unused and in its original packaging.
Return procedure for P6SMB9.1C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB9.1C Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
