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Taiwan Semiconductor Corporation P6SMB7.5
- Part No.:
- P6SMB7.5
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB7.5.pdf
- Description:
- 600W, 7.5V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:3,519
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Product details
Overview
P6SMB7.5 from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails. It features a breakdown voltage range of 6.75–8.25 V at 10 mA, a stand-off voltage of 6.05 V, clamps to ≤11.7 V at 53 A peak pulse current, and operates within –55°C to +150°C junction temperature.
For engineers reviewing the P6SMB7.5 datasheet, P6SMB7.5 pinout, P6SMB7.5 application, or P6SMB7.5 equivalent, key selection criteria include its DO-214AA (SMB) package compatibility with automated placement, sub-1 ps response time, <1 µA leakage above 10 V, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and suitability for SMPS input-stage surge suppression.
Technical Context
The P6SMB7.5 employs a glass-passivated silicon junction optimized for fast transient clamping on low-voltage DC lines. Its unidirectional configuration provides reverse-biased protection only, with forward voltage drop of 3.5 V at 50 A - consistent across the P6SMB6.8–P6SMB91 family.
Thermal performance is defined by 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 J-STD-020 Moisture Sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.75 V / 8.25 V @ 10 mA - defines guaranteed clamping onset window under production test conditions |
| VWM | 6.05 V - maximum continuous DC operating voltage before significant leakage begins |
| IPPM | 53 A @ 10/1000 µs waveform - peak surge current it safely shunts without failure |
| VC @ IPPM | ≤11.7 V - maximum clamped voltage seen by protected circuit during rated surge |
| PPPSM | 600 W - non-repetitive peak pulse power handling capability per ISO 7637-2 |
| IR @ VWM | ≤500 µA - reverse leakage at stand-off voltage, critical for low-power standby circuits |
| TJ max | +150°C - maximum junction temperature enabling use in thermally constrained enclosures |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, single-diode unidirectional configuration with cathode band marking. Dimensions comply with JEDEC DO-214AA outline; terminals are matte tin-plated for J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC power rail reference node | Connected to ground or low-impedance return path; forms clamping loop with cathode |
| Cathode | Protected line connection | Connected to the line being safeguarded (e.g., +5V rail); conducts during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling |
| Sub-1 ps response time | Clamps transients faster than most microcontroller I/O or power supply controller reaction times |
| ISO 7637-2 compliance | Validated for automotive load-dump and inductive-switching immunity testing (Pulse 1/2a/2b/3a/3b) |
| Moisture sensitivity level 1 | Zero bake requirement prior to reflow - compatible with standard SMT assembly lines |
| UL 94V-0 molding compound | Meets flammability safety requirements for enclosed power adapters and industrial equipment |
Applications
| Switching Mode Power Supply (SMPS) | AC-DC Adapters |
|---|---|
Use Scenario: Input rectifier output rail protection against line surges and switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between bulk capacitor positive terminal and ground. Use Value: Clamps 600W transients to ≤11.7 V, preventing damage to downstream PWM controllers and MOSFET gate drivers. | Use Scenario: Secondary-side 5 V/12 V DC output line protection in wall-mounted adapters. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing ESD and capacitive coupling spikes from connected devices. Use Value: 6.05 V VWM allows safe operation across full load range while blocking normal ripple. |
| Flat Panel TV Power Board | Computer Monitor DC Input Stage |
Use Scenario: Protection of main 24 V or 12 V logic supply rail against hot-swap and cable discharge events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on board-level DC distribution net. Use Value: Sub-1 ps response ensures suppression occurs before voltage overshoot reaches sensitive TCON or backlight ICs. | Use Scenario: Surge suppression on external 19 V DC input connector before DC-DC conversion stages. IC Role / Device Role / Timing Role: First-line defense against lightning-induced surges entering via IEC 61000-4-5 coupled paths. Use Value: 600W rating handles 10/1000 µs surges up to 53 A without degradation after multiple events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5A | Breakdown range 7.13–7.88 V; tighter VBR tolerance; same SMB package and 600W rating | Preferred where tighter clamping threshold control is required for margin-critical 5 V systems | Select SMBJ7.5A if design requires <±5% VBR variation versus P6SMB7.5's ±9.1% |
| 1.5SMC7.5A | DO-214AB (SMC) package; higher thermal mass; identical electrical specs but larger footprint | Used where board space permits larger package for improved thermal dissipation in high-ambient environments | Choose 1.5SMC7.5A only if layout allows SMC footprint and enhanced RθJA is needed |
Compared with SMBJ7.5A and 1.5SMC7.5A, the P6SMB7.5 offers the lowest cost-per-watt in SMB form factor with verified ISO 7637-2 compliance, making it optimal for high-volume consumer power supplies where footprint and assembly compatibility are prioritized.
Availability
P6SMB7.5 is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and flat-panel display power boards requiring stable component supply and automotive-grade surge immunity.
Supply support for P6SMB7.5 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 P6SMB7.5 belongs to TSC's P6SMBx series - a family of 600W SMB-packaged TVS diodes engineered for cost-sensitive, high-reliability DC rail protection in consumer, industrial, and automotive auxiliary power systems.
FAQ
What is the polarity configuration of the P6SMB7.5?
The P6SMB7.5 is a unidirectional TVS diode, meaning it protects against reverse-polarity transients only. Its cathode band must be oriented toward the positive side of the protected line. Forward conduction occurs at ~3.5 V, allowing it to function as a basic crowbar element in fault conditions - a behavior confirmed in the absolute maximum ratings table for the P6SMB6.8–P6SMB91 group.
Does the P6SMB7.5 meet automotive surge standards?
Yes, the P6SMB7.5 meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements as explicitly stated in its features list. This validation covers typical vehicle electrical disturbances including load dump, alternator switching, and inductive load release - making it suitable for 12 V battery rail protection in infotainment and body control modules.
What is the maximum clamping voltage of the P6SMB7.5 under rated surge conditions?
The P6SMB7.5 has a maximum clamping voltage (VC) of 11.7 V when subjected to its rated 53 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees the protected circuit sees no more than 11.7 V during worst-case surge events.
Can the P6SMB7.5 be used in bidirectional configurations?
No - the P6SMB7.5 is unidirectional only. For bidirectional protection, Taiwan Semiconductor specifies part numbers with "C" or "CA" suffixes (e.g., P6SMB7.5C). Using the P6SMB7.5 in reverse-biased AC applications risks permanent junction damage due to lack of symmetrical breakdown characteristics.
What is the thermal resistance from junction to ambient for the P6SMB7.5?
The P6SMB7.5 has a junction-to-ambient thermal resistance (RθJA) of 55°C/W under standard JEDEC test conditions (single-layer 1 in² copper pad). This value assumes no additional heatsinking; actual board-level performance depends on PCB copper area, layer count, and airflow - data confirmed in the Thermal Performance section of the official datasheet.
P6SMB7.5 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.05V
- Voltage - Breakdown (Min):
- 6.75V
- Voltage - Clamping (Max) @ Ipp:
- 11.7V
- Current - Peak Pulse (10/1000µs):
- 53A
- 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)
P6SMB7.5 FAQ
1.How can I place an order for P6SMB7.5 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB7.5 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 P6SMB7.5 reliable?
The price and inventory of P6SMB7.5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB7.5 is usually 5 days.
3.What payment methods are accepted for P6SMB7.5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB7.5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB7.5?
P6SMB7.5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB7.5 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 P6SMB7.5?
For technical support, including P6SMB7.5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB7.5 requirements.
6.How does Aetrix verify that P6SMB7.5 is sourced from the original manufacturer or authorized distributors?
All P6SMB7.5 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 P6SMB7.5 meets industry standards.
7.What is the process for return or replacement of P6SMB7.5?
All P6SMB7.5 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB7.5, 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 P6SMB7.5 part is unused and in its original packaging.
Return procedure for P6SMB7.5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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