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Taiwan Semiconductor Corporation P6SMB30CAH
- Part No.:
- P6SMB30CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30CAH.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,037
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Product details
Overview
P6SMB30CAH from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, with breakdown voltage 28.5–31.5 V, stand-off voltage 25.6 V, and clamping voltage 41.4 V at 15.0 A peak pulse current. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the P6SMB30CAH datasheet, P6SMB30CAH pinout, P6SMB30CAH application, or P6SMB30CAH equivalent, key selection criteria include bidirectional clamping performance, AEC-Q101 qualification, moisture sensitivity level 1, and compliance with IEC 61249-2-21 halogen-free requirements.
Technical Context
P6SMB30CAH is a glass-passivated, bipolar junction TVS diode optimized for fast response (<1.0 ps rise time from 0 V to VBR min) and low leakage (<1 µA @ 25.6 V). Its symmetrical breakdown behavior enables identical clamping in both directions, supporting robust ESD and load-dump protection without polarity constraints.
The device operates across –55 °C to +150 °C junction temperature range, with thermal resistance RθJC = 10 °C/W and RθJA = 55 °C/W. It meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability standards for high-reliability PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V - Ensures reliable triggering above system nominal voltage while avoiding false trips during normal operation |
| VWM | 25.6 V - Maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 41.4 V @ 15.0 A - Clamped voltage seen by protected IC during 10/1000 µs surge, limiting stress on downstream components |
| PPPSM | 600 W - Peak pulse power handling per single 10/1000 µs transient, enabling robust load-dump immunity |
| IR @ VWM | <1 µA - Ultra-low reverse leakage preserves battery life and signal integrity in always-on circuits |
| TJ max | +150 °C - Supports under-hood automotive placement and high-ambient industrial environments |
| Package | DO-214AA (SMB) - Standardized surface-mount footprint compatible with automated pick-and-place and reflow processes |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, cathode band marking for unidirectional variants; P6SMB30CAH is bidirectional and marked with code "LRJ", with polarity indicated by cathode band orientation per mechanical drawing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional clamping node | No functional polarity - either terminal serves as input or return path for transient energy dissipation |
| Case | Thermal and mechanical interface | Non-electrical; provides mechanical anchoring and heat conduction to PCB copper pour |
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 | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives |
| ISO 7637-2 compliance | Guarantees immunity to standardized automotive electrical transients (Pulse 1, 2a, 2b, 3a, 3b) |
| Moisture sensitivity level 1 | Enables unlimited floor life before reflow - no baking required prior to assembly |
| Halogen-free (IEC 61249-2-21) | Meets environmental compliance for RoHS and ELV directives without compromising flame retardancy |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V CAN bus power lines and microcontroller supply rails from load dump and jump-start surges. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between VCC and GND, absorbing transient energy before it reaches sensitive logic. Use Value: Limits peak voltage to 41.4 V during 15 A transients, preventing latch-up or permanent damage to 3.3 V/5 V MCUs and CAN transceivers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC inputs against EFT and ESD events. IC Role / Device Role / Timing Role: Low-capacitance shunt protector placed at sensor connector entry point to divert fast transients away from precision ADC front-ends. Use Value: Sub-1 µA leakage at 25.6 V avoids DC offset errors; fast <1 ps response ensures clamping occurs before transient propagates into signal chain. |
| LED Driver Overvoltage Protection | DC-DC Converter Input Stage Protection |
Use Scenario: Shielding constant-current LED drivers in automotive lighting modules from battery reversal and alternator spikes. IC Role / Device Role / Timing Role: Bidirectional TVS placed across driver input terminals to clamp both positive and negative excursions. Use Value: Withstands 600 W pulses without degradation, maintaining stable light output during repeated load-dump events per ISO 7637-2. | Use Scenario: Guarding buck converter input stages in industrial HMIs against 10/1000 µs surges induced by relay switching or motor commutation. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of input filter capacitors and controller ICs. Use Value: Clamps to 41.4 V within nanoseconds, preventing overvoltage shutdown or internal FET avalanche failure in controllers rated for ≤42 V input. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30CA | Same DO-214AA package, identical VBR (28.5–31.5 V), but rated for 600 W with slightly higher VC = 48.4 V @ 12.4 A | Higher clamping voltage reduces margin for 3.3 V/5 V systems; lower IPPM limits surge current handling | Select P6SMB30CAH when tighter clamping (41.4 V) and higher peak current (15.0 A) are required for demanding automotive transients. |
| 1.5SMC33CA | Larger DO-214AB (SMC) package, same VBR range, VC = 53.3 V @ 11.3 A, PPPSM = 1500 W | Higher power rating suits infrequent high-energy events; larger footprint increases board area and thermal mass | Choose P6SMB30CAH for space-constrained designs where SMB footprint and 600 W capability meet system-level ISO 7637-2 requirements. |
Compared with SMBJ30CA and 1.5SMC33CA, P6SMB30CAH delivers superior clamping performance in a compact SMB package, making it optimal for automotive body electronics and industrial control modules where layout density and precise voltage limiting are critical.
Availability
P6SMB30CAH is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and LED driver overvoltage suppression requiring stable component supply and AEC-Q101-compliant sourcing.
Supply support for P6SMB30CAH 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 for automotive, industrial, and consumer markets.
The P6SMB series targets high-reliability transient suppression in harsh environments, with design emphasis on AEC-Q101 qualification, low-profile SMB packaging, and compliance with ISO 7637-2 and IEC 61249-2-21 standards.
FAQ
What is the breakdown voltage tolerance for P6SMB30CAH?
The P6SMB30CAH has a specified breakdown voltage range of 28.5 V to 31.5 V at test current IT = 1.0 mA, corresponding to ±5% tolerance around the nominal 30 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports reliable overvoltage threshold design in safety-critical systems using P6SMB30CAH.
Is P6SMB30CAH suitable for automotive applications?
Yes, P6SMB30CAH is AEC-Q101 qualified and explicitly designed for automotive use, meeting ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b transient immunity requirements. Its –55 °C to +150 °C operating range, moisture sensitivity level 1, and glass-passivated junction make P6SMB30CAH appropriate for under-hood and body-control module deployments.
How does the clamping voltage of P6SMB30CAH compare to its stand-off voltage?
P6SMB30CAH has a stand-off voltage VWM of 25.6 V and a maximum clamping voltage VC of 41.4 V at 15.0 A peak pulse current. This 15.8 V differential defines the transient energy absorption window - sufficient to handle ISO 7637-2 load-dump pulses while keeping protected circuitry below absolute maximum ratings, a key design advantage of P6SMB30CAH.
Does P6SMB30CAH require special PCB layout considerations?
P6SMB30CAH uses the standard DO-214AA (SMB) footprint, but optimal performance requires short, low-inductance traces to minimize voltage overshoot during fast transients. A dedicated ground plane beneath the device and symmetric routing to both terminals are recommended. No special solder mask or stencil adjustments are needed beyond standard SMB assembly guidelines for P6SMB30CAH.
What is the peak pulse current rating for P6SMB30CAH?
P6SMB30CAH is rated for a maximum peak pulse current IPPM of 15.0 A under the standard 10/1000 µs waveform. This value is derived from its 600 W peak pulse power rating and 41.4 V clamping voltage (I = P/V), and is validated per Figure 3 in the datasheet. The 15.0 A rating directly informs system-level surge withstand validation for P6SMB30CAH.
P6SMB30CAH 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 15A
- 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)
P6SMB30CAH FAQ
1.How can I place an order for P6SMB30CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30CAH 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 P6SMB30CAH reliable?
The price and inventory of P6SMB30CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB30CAH is usually 5 days.
3.What payment methods are accepted for P6SMB30CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30CAH?
P6SMB30CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30CAH 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 P6SMB30CAH?
For technical support, including P6SMB30CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30CAH requirements.
6.How does Aetrix verify that P6SMB30CAH is sourced from the original manufacturer or authorized distributors?
All P6SMB30CAH 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 P6SMB30CAH meets industry standards.
7.What is the process for return or replacement of P6SMB30CAH?
All P6SMB30CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30CAH, 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 P6SMB30CAH part is unused and in its original packaging.
Return procedure for P6SMB30CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30CAH Tags
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