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Taiwan Semiconductor Corporation P6SMB7.5CA
- Part No.:
- P6SMB7.5CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB7.5CA.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,930
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Product details
Overview
P6SMB7.5CA from Taiwan Semiconductor is a bidirectional 600W transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for surge protection on DC power rails and signal lines. It features a standoff voltage of 6.40 V, breakdown voltage range of 7.13–7.88 V at 10 mA, clamping voltage of 11.3 V at 500 A peak pulse current, and operates across –55°C to +150°C junction temperature.
For engineers reviewing the P6SMB7.5CA datasheet, P6SMB7.5CA pinout, P6SMB7.5CA application, or P6SMB7.5CA equivalent, key selection criteria include bidirectional clamping capability, low leakage (<1 µA @ 6.40 V), fast response (<1.0 ps), ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and suitability for compact surface-mount designs requiring robust ESD/surge immunity without polarity constraints.
Technical Context
The P6SMB7.5CA is a glass-passivated, bipolar TVS diode optimized for unidirectional or bidirectional transient suppression in automotive and industrial power systems. Its symmetrical I-V characteristics enable identical clamping performance in both directions, with a typical junction capacitance under 1000 pF at 0 V and <1 µA reverse leakage above 10 V.
Thermal design is supported by RθJC = 10°C/W and RθJA = 55°C/W, enabling reliable operation up to 150°C junction temperature. It meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1, confirming suitability for lead-free reflow assembly without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.40 V - Maximum continuous reverse operating voltage before significant leakage begins; sets upper limit for protected circuit DC bias. |
| VBR (min/max) | 7.13 V / 7.88 V @ IT = 10 mA - Confirmed breakdown threshold range; ensures predictable turn-on during transients. |
| VC @ IPPM | 11.3 V @ 500 A - Clamped voltage during 10/1000 µs surge; defines maximum stress imposed on downstream components. |
| PPPSM | 600 W - Peak pulse power rating per 10/1000 µs waveform; quantifies single-event surge energy handling capacity. |
| IR @ VWM | <1 µA - Reverse leakage at standoff voltage; ensures minimal standby power loss and signal integrity in high-impedance circuits. |
| TJ max | +150°C - Maximum junction temperature; supports operation in under-hood automotive or enclosed industrial environments. |
| Package | DO-214AA (SMB) - Surface-mount outline with 0.090 g mass; compatible with automated placement and IPC-7351B footprint standards. |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, cathode band marking for unidirectional variants; P6SMB7.5CA is bidirectional and marked with KGJ code - no polarity band required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal serves as anode or cathode depending on transient polarity; enables clamp-to-rail protection without orientation constraints. |
| Case (plastic body) | Non-conductive thermal path | Provides mechanical support and electrical isolation; contributes to RθJA = 55°C/W ambient thermal resistance. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM performance in both directions - eliminates PCB layout polarity concerns and simplifies board routing. |
| Glass-passivated junction | Enhanced reliability and stable VBR over lifetime - reduces parameter drift under thermal cycling and humidity exposure. |
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) - meets automotive OEM EMC requirements. |
| Fast response time | <1.0 ps rise time from 0 V to VBR min - limits voltage overshoot during nanosecond-scale ESD events per IEC 61000-4-2. |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU - supports green manufacturing and end-of-life recycling mandates. |
Applications
| Automotive Power Rail Protection | Industrial SMPS Input Stage |
|---|---|
Use Scenario: Protecting 5 V/12 V microcontroller power inputs against load-dump transients and alternator spikes in passenger vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS device placed directly at connector entry point to clamp surges before reaching LDOs or DC-DC converters. Use Value: Limits transient voltage to ≤11.3 V during 500 A pulses, preventing latch-up or permanent damage to 12 V-rated logic ICs and analog sensors. | Use Scenario: Safeguarding AC-DC adapter primary-side rectifier outputs and secondary-side 5 V/24 V rails against lightning-induced surges and switching noise. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across bulk capacitor terminals to absorb repetitive 600 W pulses without degradation. Use Value: Maintains system uptime by suppressing >100 V transients to safe levels while exhibiting <1 µA leakage at 6.4 V standby. |
| Consumer Monitor Power Supply | Point-of-Sale Terminal Interface |
Use Scenario: Shielding HDMI/USB power pins and internal 3.3 V/5 V rails in flat-panel display power boards from ESD and hot-plug surges. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted adjacent to connectors to minimize trace inductance and maximize clamping speed. Use Value: Achieves sub-nanosecond response and <11.3 V clamping to preserve signal integrity and prevent reset faults during user-handling events. | Use Scenario: Protecting RS-232/RS-485 transceiver VCC and data lines in retail kiosks exposed to electrostatic discharge in dry environments. IC Role / Device Role / Timing Role: Bidirectional surge suppressor bridging supply rail to ground, absorbing ±8 kV contact ESD per IEC 61000-4-2. Use Value: Delivers repeatable clamping performance across temperature (–55°C to +150°C) without derating in uncontrolled retail environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5CA | Same DO-214AA package, 600 W rating, but VBR = 7.9–8.72 V and VC = 12.9 V @ 49.6 A - lower peak pulse current capability. | Lower IPPM (49.6 A vs. 500 A) limits use to lower-energy transients; not suitable for ISO 7637-2 Pulse 1 or 2b. | Select SMBJ7.5CA only when surge currents remain below 50 A and tighter VBR tolerance is required. |
| 1.5SMC7.5CA | Higher power rating (1500 W), same VBR range (7.13–7.88 V), but larger DO-214AB (SMC) package - 2.5× footprint area increase. | Supports higher-energy surges (e.g., 10/1000 µs, 1000 A), but requires PCB redesign and may not fit space-constrained layouts. | Choose 1.5SMC7.5CA when system-level testing reveals 600 W insufficient and board space allows SMC footprint. |
Compared with SMBJ7.5CA and 1.5SMC7.5CA, the P6SMB7.5CA uniquely balances 500 A surge current handling, SMB footprint compatibility, and ISO 7637-2 compliance - making it optimal for automotive and industrial modules where space, cost, and standardized test margin are jointly constrained.
Availability
P6SMB7.5CA is available at Aetrix Electronics and suitable for automotive electronics, industrial switch-mode power supplies, consumer monitor power stages, and point-of-sale terminal interface protection requiring stable component supply and full traceability.
Supply support for P6SMB7.5CA 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, with global distribution and AEC-Q101 qualified product lines.
The P6SMB series was developed for surface-mount surge protection in automotive and industrial applications demanding high reliability, standardized packaging, and compliance with ISO 7637-2 and JESD201 requirements.
FAQ
What is the maximum clamping voltage of the P6SMB7.5CA under a 10/1000 µs surge?
The P6SMB7.5CA has a maximum clamping voltage (VC) of 11.3 V when subjected to a 500 A peak pulse current with a 10/1000 µs waveform. This value is measured per standard test conditions defined in ANSI/IEEE C62.35 and confirmed in Taiwan Semiconductor's Q2209 datasheet revision. The P6SMB7.5CA maintains this clamping performance symmetrically in both directions due to its bidirectional construction.
Is the P6SMB7.5CA suitable for automotive applications requiring ISO 7637-2 compliance?
Yes, the P6SMB7.5CA is explicitly rated to meet ISO 7637-2 for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling). Its 600 W peak pulse power rating, 500 A IPPM, and bidirectional symmetry make it appropriate for protecting ECUs, body control modules, and infotainment power rails. The P6SMB7.5CA also satisfies JESD201 Class 2 whisker resistance and MSL Level 1 handling requirements.
How does the P6SMB7.5CA differ from the unidirectional P6SMB7.5C?
The P6SMB7.5CA is bidirectional, meaning it clamps equally in both polarities with symmetrical VBR, VC, and IPPM values. In contrast, the unidirectional P6SMB7.5C has a cathode band marking and only clamps in reverse bias - forward conduction follows standard diode behavior. The P6SMB7.5CA uses KGJ marking and omits the cathode band, enabling polarity-agnostic placement. Both share identical VWM (6.40 V) and thermal specs.
What is the reverse leakage current of the P6SMB7.5CA at its standoff voltage?
The P6SMB7.5CA exhibits a maximum reverse leakage current (IR) of less than 1 µA when biased at its standoff voltage (VWM) of 6.40 V. This low leakage is specified at TA = 25°C and ensures minimal power loss and signal interference in always-on circuits such as battery-backed monitoring systems or sensor interfaces. The P6SMB7.5CA maintains this performance across its full operating temperature range.
Does the P6SMB7.5CA require special PCB layout considerations compared to other SMB-packaged TVS diodes?
No special layout is required beyond standard SMB best practices: short, low-inductance traces to the protected node and ground plane, and avoidance of vias in the main current path. Because the P6SMB7.5CA is bidirectional, orientation on the PCB is irrelevant - unlike unidirectional variants that require cathode alignment. Its DO-214AA footprint matches IPC-7351B recommendations, and the P6SMB7.5CA's 0.090 g mass supports reliable reflow soldering without tombstoning.
P6SMB7.5CA 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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 55A
- 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)
P6SMB7.5CA FAQ
1.How can I place an order for P6SMB7.5CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB7.5CA 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 P6SMB7.5CA reliable?
The price and inventory of P6SMB7.5CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB7.5CA is usually 5 days.
3.What payment methods are accepted for P6SMB7.5CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB7.5CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB7.5CA?
P6SMB7.5CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB7.5CA 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 P6SMB7.5CA?
For technical support, including P6SMB7.5CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB7.5CA requirements.
6.How does Aetrix verify that P6SMB7.5CA is sourced from the original manufacturer or authorized distributors?
All P6SMB7.5CA 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 P6SMB7.5CA meets industry standards.
7.What is the process for return or replacement of P6SMB7.5CA?
All P6SMB7.5CA units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB7.5CA, 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 P6SMB7.5CA part is unused and in its original packaging.
Return procedure for P6SMB7.5CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB7.5CA Tags
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