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Taiwan Semiconductor Corporation P6SMB7.5CAH
- Part No.:
- P6SMB7.5CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB7.5CAH.pdf
- Description:
- 600W, 7.5V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,071
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Product details
Overview
P6SMB7.5CAH from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a standoff voltage of 6.40 V, breakdown voltage range of 7.13–7.88 V at 10 mA, and clamping voltage of 11.3 V at 500 A peak pulse current. It protects automotive and industrial circuits against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the P6SMB7.5CAH datasheet, P6SMB7.5CAH pinout, P6SMB7.5CAH application, or P6SMB7.5CAH equivalent, this device is selected for ESD and inductive switching protection where low-leakage (<1 µA @ 6.40 V), fast response (<1.0 ps), and AEC-Q101 qualification are required.
Technical Context
P6SMB7.5CAH is a bipolar TVS diode configured as a single die in DO-214AA (SMB) package, with symmetrical clamping behavior in both directions. Its glass-passivated junction ensures stable breakdown and low leakage, while its 10 °C/W junction-to-case thermal resistance supports sustained surge handling under PCB-constrained thermal conditions.
The device meets ISO 7637-2 immunity requirements for automotive electronics and delivers 600 W non-repetitive peak pulse power with 10/1000 µs waveform. Its temperature coefficient of breakdown voltage is +0.061 %/°C, enabling predictable voltage drift across –55 °C to +150 °C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.40 V - Maximum continuous reverse working voltage before significant leakage begins |
| VBR (min/max) | 7.13 V / 7.88 V at IT = 10 mA - Confirmed breakdown threshold for reliable clamping onset |
| VC @ IPPM | 11.3 V at 500 A - Clamped voltage during worst-case 10/1000 µs surge, limiting downstream stress |
| IPPM | 500 A - Peak pulse current capability under standard surge waveform |
| PPPSM | 600 W - Non-repetitive surge power rating defining transient energy absorption capacity |
| ID @ VWM | <1 µA - Ultra-low reverse leakage preserves signal integrity in high-impedance nodes |
| TJ max | +150 °C - Maximum junction temperature supporting under-hood automotive placement |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode band marking; matte tin-plated leads compliant with J-STD-002 solderability; polarity indicated by molded cathode band on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Completes symmetrical clamping loop; connects to protected line or ground reference |
| Cathode | Transient return path (bidirectional) | Marked terminal; functions identically to anode in CAH configuration due to bipolar construction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| Glass passivated junction | Ensures stable VBR tolerance and <1 µA leakage at VWM, critical for battery-powered systems |
| ISO 7637-2 compliance | Guarantees immunity to real-world automotive transients (Pulse 1, 2a, 2b, 3a, 3b) without external filtering |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking, reducing manufacturing cost and process risk |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives for environmentally regulated end equipment |
Applications
| Automotive Lighting Control | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LED driver ICs and microcontroller GPIOs in headlamp modules subjected to load dump and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across power rail and ground to shunt transients before they reach sensitive logic. Use Value: Limits voltage excursion to ≤11.3 V during 500 A surges, preventing latch-up or gate oxide damage in 5 V/3.3 V logic interfaces. | Use Scenario: Safeguarding digital input terminals of programmable logic controllers exposed to relay coil flyback and field wiring ESD. IC Role / Device Role / Timing Role: Standoff protector mounted directly at connector entry point to absorb fast transients before signal conditioning circuitry. Use Value: Sub-1 µA leakage at 6.40 V avoids false triggering in high-impedance 24 V DC input sensing circuits. |
| Automotive Body Control Module | Smart Sensor Interface Protection |
Use Scenario: Shielding LIN bus transceivers and window motor drivers from battery line transients during ignition and alternator load dump events. IC Role / Device Role / Timing Role: Low-profile TVS placed between VBAT and GND rails to clamp pulses within ISO 7637-2 limits. Use Value: 600 W surge rating handles 10/1000 µs pulses up to 500 A, meeting OEM-level EMC robustness requirements. | Use Scenario: Protecting analog front-end inputs of MEMS pressure sensors in HVAC and engine management systems from ESD and cable discharge events. IC Role / Device Role / Timing Role: Signal-line TVS connected between sensor output and MCU ADC input to limit overvoltage without loading the source. Use Value: 11.3 V clamping voltage ensures ADC input remains within absolute maximum ratings even during ±8 kV contact ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5CA | Same DO-214AA package, identical VWM/VBR/VC specs, but not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial use only | Select SMBJ7.5CA when AEC-Q101 is not required and cost optimization is prioritized |
| 1.5SMC7.5CA | Higher 1500 W PPPSM, larger DO-214AB (SMC) package, same VBR range and bipolar configuration | Requires PCB layout change; preferred where higher surge margin is needed | Choose 1.5SMC7.5CA when system-level surge testing exceeds 600 W or board space allows larger footprint |
Compared with SMBJ7.5CA and 1.5SMC7.5CA, P6SMB7.5CAH provides AEC-Q101 assurance in the smallest SMB footprint while delivering precise 11.3 V clamping-making it optimal for space-constrained automotive modules where qualification and consistency are mandatory.
Availability
P6SMB7.5CAH is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O protection, and body control module designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB7.5CAH 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 validation capabilities.
The P6SMB7.5CAH belongs to TSC's P6SMBx(A)H series-designed specifically for automotive and industrial transient suppression where compact size, low leakage, and standardized ISO 7637-2 compliance are essential.
FAQ
What is the clamping voltage of P6SMB7.5CAH and how is it measured?
The clamping voltage of P6SMB7.5CAH is 11.3 V, measured at 500 A peak pulse current using the standard 10/1000 µs waveform defined in IEC 61000-4-5. This value represents the maximum voltage seen across the device during a surge event and is critical for ensuring downstream ICs remain within their absolute maximum ratings. The P6SMB7.5CAH achieves this clamping performance while maintaining sub-1 µA leakage at its 6.40 V standoff voltage.
Is P6SMB7.5CAH suitable for automotive applications?
Yes, P6SMB7.5CAH is AEC-Q101 qualified and explicitly designed for automotive use. It meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b immunity requirements and operates reliably from –55 °C to +150 °C. Its glass-passivated junction, moisture sensitivity level 1, and halogen-free construction align with automotive manufacturing and environmental standards-making P6SMB7.5CAH appropriate for body control modules, lighting systems, and infotainment power rails.
How does the CAH suffix differ from CH or H in the P6SMB series?
The CAH suffix denotes a bidirectional TVS diode with tighter VBR tolerance: for P6SMB7.5CAH, VBR is 7.13–7.88 V (±5% typical), versus 6.75–8.25 V (±10%) for the P6SMB7.5H variant. Both CAH and CH are bidirectional, but CAH offers improved voltage consistency for precision clamping applications. The P6SMB7.5CAH also features lower clamping voltage (11.3 V vs. 11.7 V for P6SMB7.5H) and reduced leakage, enhancing protection fidelity in noise-sensitive systems.
What is the thermal resistance of P6SMB7.5CAH and why does it matter?
P6SMB7.5CAH has a junction-to-case thermal resistance (RθJC) of 10 °C/W and junction-to-ambient (RθJA) of 55 °C/W. These values determine how effectively heat from surge dissipation transfers to the PCB and ambient air. A low RθJC enables efficient conduction into copper planes, allowing the device to sustain repeated 600 W pulses without exceeding its 150 °C maximum junction temperature-critical for automotive modules with limited airflow and high ambient temperatures.
Can P6SMB7.5CAH be used in place of unidirectional TVS diodes?
No-P6SMB7.5CAH is strictly bidirectional and must not replace unidirectional TVS diodes in DC-biased applications such as power rail-to-ground protection where polarity matters. Its symmetrical structure clamps equally in both directions, making it ideal for AC lines, data buses, or floating signal paths. Using P6SMB7.5CAH in a unidirectional role wastes its bipolar capability and may compromise protection if reverse bias exceeds VWM in unintended ways. Always verify circuit topology before substituting P6SMB7.5CAH.
P6SMB7.5CAH 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB7.5CAH FAQ
1.How can I place an order for P6SMB7.5CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB7.5CAH 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 P6SMB7.5CAH reliable?
The price and inventory of P6SMB7.5CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB7.5CAH is usually 5 days.
3.What payment methods are accepted for P6SMB7.5CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB7.5CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB7.5CAH?
P6SMB7.5CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB7.5CAH 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 P6SMB7.5CAH?
For technical support, including P6SMB7.5CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB7.5CAH requirements.
6.How does Aetrix verify that P6SMB7.5CAH is sourced from the original manufacturer or authorized distributors?
All P6SMB7.5CAH 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 P6SMB7.5CAH meets industry standards.
7.What is the process for return or replacement of P6SMB7.5CAH?
All P6SMB7.5CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB7.5CAH, 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 P6SMB7.5CAH part is unused and in its original packaging.
Return procedure for P6SMB7.5CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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