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Taiwan Semiconductor Corporation P6SMB9.1CA
- Part No.:
- P6SMB9.1CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB9.1CA.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,749
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Product details
Overview
P6SMB9.1CA from Taiwan Semiconductor is a bidirectional 600W transient voltage suppressor diode in DO-214AA (SMB) package, with breakdown voltage 8.65–9.55 V at 1.0 mA test current, clamping voltage 12.5 V at 47 A peak pulse current, and stand-off voltage 7.78 V. It protects DC power rails in switching mode power supplies, adapters, and display electronics against ESD and surge events per ISO 7637-2.
For engineers reviewing the P6SMB9.1CA datasheet, P6SMB9.1CA pinout, P6SMB9.1CA application, or P6SMB9.1CA equivalent, key selection criteria include bidirectional clamping capability, 12.5 V max clamping at 47 A, <1 µA leakage at 7.78 V, 1.0 ps response time, and compliance with automotive pulse standards (Pulse 1/2a/2b/3a/3b).
Technical Context
The P6SMB9.1CA is a glass-passivated, bipolar TVS diode designed for unidirectional or bidirectional transient suppression in low-voltage DC systems. Its junction structure delivers fast response (<1.0 ps), low leakage (<1 µA @ VWM), and stable breakdown over temperature (TC of VBR = 0.068 %/°C).
It operates across –55 °C to +150 °C junction temperature, with thermal resistance RθJA = 55 °C/W and RθJC = 10 °C/W. The device meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.65 V / 9.55 V at IT = 1.0 mA - defines reliable conduction onset under surge stress |
| VWM | 7.78 V - maximum continuous reverse operating voltage before leakage rises |
| VC @ IPPM | 12.5 V at 47 A (10/1000 µs) - peak clamped voltage seen by protected circuitry |
| PPPSM | 600 W - non-repetitive surge power handling capability per ISO 7637-2 Pulse 1/2a/2b/3a/3b |
| IR @ VWM | <1 µA - ensures minimal standby power loss and signal integrity in high-impedance circuits |
| Response time | <1.0 ps - enables effective suppression of fast-rising ESD transients (IEC 61000-4-2) |
| TJ range | –55 °C to +150 °C - supports operation in industrial and automotive under-hood environments |
Pinout & Package
DO-214AA (SMB) surface-mount package: molded epoxy case meeting UL 94V-0, matte tin-plated leads solderable per J-STD-002, polarity indicated by cathode band (bidirectional symmetry means band denotes common terminal).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient path | Either terminal serves as anode or cathode depending on polarity of surge event; no fixed directionality |
| Cathode band marking | Reference orientation marker | Indicates physical terminal location only; functional symmetry eliminates directional bias in layout |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term reliability and stable VBR under thermal cycling and humidity exposure |
| ISO 7637-2 compliance | Validated for automotive load-dump and supply-line transient immunity (Pulse 1/2a/2b/3a/3b) |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking or special handling per J-STD-020 |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive for environmentally constrained applications |
| Low-profile SMB footprint | Supports automated placement and high-density PCB layouts while maintaining 600 W surge rating |
Applications
| Switching Mode Power Supply (SMPS) | AC-DC Adapter |
|---|---|
Use Scenario: Input rectifier stage and secondary-side DC bus lines exposed to line surges and switching noise. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across bulk capacitor or controller supply pins. Use Value: Limits transient overvoltage to ≤12.5 V during 47 A 10/1000 µs pulses, preventing IC latch-up or MOSFET gate oxide failure. | Use Scenario: USB-C PD and legacy wall adapters subject to mains-borne transients and hot-plug ESD. IC Role / Device Role / Timing Role: Primary-side input protection between bridge rectifier output and bulk capacitor. Use Value: Withstands repetitive 600 W surges while maintaining <1 µA leakage at 7.78 V, preserving no-load efficiency. |
| Flat Panel TV Power Board | Monitor DC-DC Distribution |
Use Scenario: 12 V and 24 V internal rails feeding backlight inverters and T-con boards. IC Role / Device Role / Timing Role: Localized TVS mounted near connector entry points and DC-DC converter inputs. Use Value: Clamps fast transients (≤1 ps rise) from cable discharge events without affecting 100 kHz PWM dimming signals. | Use Scenario: 5 V and 3.3 V point-of-load rails supplying timing controllers and interface ICs. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF at 0 V) shunt protector adjacent to sensitive logic inputs. Use Value: Provides sub-13 V clamping with negligible signal distortion on high-speed LVDS or eDP links. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA (Bourns) | VBR = 9.0–10.0 V, VC = 12.6 V @ 47.2 A, same DO-214AA package | Nearly identical clamping performance; slightly higher VWM (7.8 V) and tighter VBR tolerance | Select when tighter VBR distribution (±5.6%) is required over P6SMB9.1CA's ±4.8% range |
| 1.5SMC9.0CA (ON Semiconductor) | VBR = 9.0–10.0 V, VC = 12.9 V @ 46.5 A, DO-214AB (SMC) package (larger footprint) | Same electrical specs but larger SMC package increases board area and thermal mass | Choose only if existing layout accommodates SMC or higher thermal margin (>600 W derated) is needed |
Compared with SMBJ9.0CA and 1.5SMC9.0CA, the P6SMB9.1CA offers optimal balance of compact SMB footprint, 12.5 V clamping ceiling, and industry-standard ISO 7637-2 qualification-making it preferred for space-constrained consumer power designs where layout reuse and JEDEC-compliant reflow are critical.
Availability
P6SMB9.1CA is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and flat-panel display electronics requiring stable component supply, full traceability, and automotive-grade surge immunity.
Supply support for P6SMB9.1CA 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 MOSFETs since 1979.
The P6SMB series belongs to TSC's high-reliability surface-mount TVS platform, engineered specifically for cost-sensitive industrial and consumer power systems needing robust ISO 7637-2 compliance in compact SMB packaging.
FAQ
What is the exact breakdown voltage range for P6SMB9.1CA?
The P6SMB9.1CA has a guaranteed breakdown voltage range of 8.65 V to 9.55 V at 1.0 mA test current (IT), measured per ANSI/IEEE C62.35. This range reflects the device's bidirectional specification and is validated across production lots per Q2209 revision. The P6SMB9.1CA's VBR exhibits a temperature coefficient of 0.068 %/°C, ensuring predictable shift over operating temperature.
Is P6SMB9.1CA unidirectional or bidirectional?
The "CA" suffix in P6SMB9.1CA explicitly denotes a bidirectional configuration, meaning it provides symmetrical clamping in both polarities. Unlike "A"-suffixed unidirectional variants, the P6SMB9.1CA has no anode/cathode distinction in function-either terminal behaves identically under positive or negative transients. Polarity marking on the DO-214AA package serves only mechanical orientation reference.
What is the maximum clamping voltage of P6SMB9.1CA under surge conditions?
The P6SMB9.1CA clamps to a maximum of 12.5 V when subjected to a 47 A peak pulse current with a 10/1000 µs waveform. This value is specified in the Electrical Specifications table and represents the worst-case voltage imposed on downstream circuitry during standardized surge testing. The clamping performance remains stable across its full operating temperature range (–55 °C to +150 °C).
Does P6SMB9.1CA meet automotive transient immunity standards?
Yes, the P6SMB9.1CA is explicitly rated to meet ISO 7637-2 for automotive applications, covering Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling). This qualification is documented in the Features section of the Q2209 datasheet and confirmed by Taiwan Semiconductor's test reports for the full P6SMB6.8–P6SMB220A family.
What is the moisture sensitivity level (MSL) and reflow profile compatibility for P6SMB9.1CA?
The P6SMB9.1CA is rated MSL Level 1 per J-STD-020, meaning it may be stored indefinitely at ambient conditions and processed using standard lead-free reflow profiles without pre-baking. Its DO-214AA (SMB) package uses UL 94V-0 molding compound and matte tin-plated leads compliant with J-STD-002 solderability requirements-fully compatible with IPC-J-STD-020D thermal profiles.
P6SMB9.1CA 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):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 47A
- 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)
P6SMB9.1CA FAQ
1.How can I place an order for P6SMB9.1CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB9.1CA 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 P6SMB9.1CA reliable?
The price and inventory of P6SMB9.1CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB9.1CA is usually 5 days.
3.What payment methods are accepted for P6SMB9.1CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB9.1CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB9.1CA?
P6SMB9.1CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB9.1CA 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 P6SMB9.1CA?
For technical support, including P6SMB9.1CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB9.1CA requirements.
6.How does Aetrix verify that P6SMB9.1CA is sourced from the original manufacturer or authorized distributors?
All P6SMB9.1CA 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 P6SMB9.1CA meets industry standards.
7.What is the process for return or replacement of P6SMB9.1CA?
All P6SMB9.1CA units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB9.1CA, 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 P6SMB9.1CA part is unused and in its original packaging.
Return procedure for P6SMB9.1CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB9.1CA Tags
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