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Taiwan Semiconductor Corporation P6SMB30C
- Part No.:
- P6SMB30C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30C.pdf
- Description:
- 600W, 30V, 10%, BIDIRECTIONAL, T
- Quantity:
- Payment:
- Shipping:
Inventory:3,457
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Product details
Overview
P6SMB30C from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a standoff voltage of 25.6 V, breakdown voltage range of 28.5–31.5 V at 1 mA test current, clamping voltage of 41.4 V at 15 A peak pulse current, and operates across –55°C to +150°C junction temperature.
For engineers reviewing the P6SMB30C datasheet, P6SMB30C pinout, P6SMB30C application, or P6SMB30C equivalent, key selection criteria include its DO-214AA (SMB) package compatibility, bidirectional polarity marking, sub-1 ps response time, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and low leakage (<1 µA @ 25.6 V).
Technical Context
The P6SMB30C implements a glass-passivated silicon avalanche junction optimized for fast transient suppression with minimal capacitance-typical junction capacitance is <100 pF at 0 V and <50 pF at VWM. Its unidirectional counterpart (P6SMB30) has VF = 5.0 V @ 50 A, but P6SMB30C is symmetric, delivering identical electrical characteristics in both forward and reverse directions.
Thermally, it offers RθJC = 10°C/W and RθJA = 55°C/W, enabling reliable operation under sustained surge conditions when mounted on standard PCB copper areas. It meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 25.6 V - Maximum continuous reverse operating voltage before significant leakage begins |
| VBR min/max | 28.5 V / 31.5 V - Breakdown occurs within this range at 1 mA, defining precise clamping onset |
| VC @ IPPM | 41.4 V @ 15 A - Clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPPSM | 600 W - Peak pulse power handling per single 10/1000 µs transient, per ISO 7637-2 |
| IR @ VWM | <1 µA - Ultra-low leakage ensures minimal standby power loss in high-impedance circuits |
| TJ max | +150°C - Enables use in under-hood automotive, industrial SMPS, and enclosed power adapters |
| Response time | <1.0 ps - Sub-picosecond junction response ensures protection before IC damage thresholds are exceeded |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, molded plastic case with matte tin-plated leads compliant with J-STD-002 solderability. Polarity indicated by cathode band; for P6SMB30C, the device is bidirectional - the band denotes terminal symmetry, not unidirectional polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | Either terminal serves as anode or cathode depending on transient polarity - no orientation sensitivity in layout |
| Cathode band marking | Reference indicator only | Provides mechanical alignment reference; electrically irrelevant for bidirectional operation |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable avalanche characteristics and long-term reliability under repeated surges |
| ISO 7637-2 compliance | Validated for automotive load-dump and switching transient immunity (Pulse 1/2a/2b/3a/3b) |
| Moisture Sensitivity Level 1 | Zero bake requirement prior to reflow - compatible with standard SMT assembly lines |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green electronics manufacturing |
| Low-profile SMB package | 3.5 mm × 4.5 mm footprint with 2.3 mm height - fits dense PCB layouts without height interference |
Applications
| Switching Mode Power Supply (SMPS) | Automotive Infotainment System |
|---|---|
Use Scenario: Protection of 24 V DC input stage against load dump and inductive switching transients in AC/DC and DC/DC converters. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed across input bulk capacitor or upstream of controller IC. Use Value: Limits transient voltage to ≤41.4 V, preventing damage to PWM controllers, MOSFET drivers, and feedback optocouplers rated for 36–45 V absolute maximum. | Use Scenario: Safeguarding USB, CAN, and display interface lines in head units exposed to battery transients and ESD events. IC Role / Device Role / Timing Role: Bidirectional TVS placed at connector entry point to shunt both positive and negative polarity surges. Use Value: Symmetric clamping ensures equal protection for differential signaling pairs without polarity-dependent layout constraints. |
| Industrial Monitor Power Input | AC Adapter Secondary Side |
Use Scenario: Input rail protection for 24 V or 36 V powered displays subjected to field wiring faults and lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between VIN and GND, sized to absorb 600 W pulses without thermal runaway. Use Value: Withstands ≥1000 cycles of 10/1000 µs transients per IEC 61000-4-5, extending system MTBF in factory environments. | Use Scenario: Output-side surge suppression in universal-input wall adapters supplying 24–36 V to IoT gateways and PoE injectors. IC Role / Device Role / Timing Role: Final-stage protector after secondary rectification and filtering, guarding downstream DC-DC regulators. Use Value: Low 25.6 V standoff enables clean regulation while 41.4 V clamping prevents latch-up in 3.3 V/5 V logic supplies fed via buck converters. |
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 (Bourns) | Identical DO-214AA package, same 30 V nominal, 41.4 V clamping, but higher typical IR (2.0 µA @ VWM) | Same ISO 7637-2 compliance; slightly higher leakage may affect ultra-low-power always-on circuits | Select SMBJ30CA if dual-sourcing is required and leakage tolerance >1 µA is acceptable |
| 1.5SMC33CA (ON Semiconductor) | Larger DO-214AB (SMC) package (7.1 mm × 6.2 mm); 33 V standoff, 47.7 V clamping at 12.6 A | Higher clamping voltage reduces protection margin for 30 V systems; requires PCB redesign due to larger footprint | Choose 1.5SMC33CA only when higher energy absorption (same 600 W rating) justifies board space increase |
Compared with SMBJ30CA and 1.5SMC33CA, the P6SMB30C delivers tighter VBR tolerance (±5% vs ±6.7%), lower leakage, and optimal fit for space-constrained SMB layouts - making it preferred for high-density automotive and industrial power modules.
Availability
P6SMB30C is available at Aetrix Electronics and suitable for switching mode power supplies, automotive infotainment systems, and industrial monitor power inputs requiring stable component supply and full traceability.
Supply support for P6SMB30C 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, serving global automotive, industrial, and consumer markets since 1979.
The P6SMB series belongs to TSC's high-reliability TVS portfolio engineered specifically for ISO 7637-2-compliant automotive power line protection and ruggedized industrial DC input stages.
FAQ
What does the "C" suffix indicate in P6SMB30C?
The "C" suffix in P6SMB30C designates a bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities. Unlike unidirectional variants (e.g., P6SMB30), P6SMB30C has identical breakdown and clamping behavior regardless of voltage polarity applied across its terminals, eliminating orientation concerns during PCB placement.
Is P6SMB30C suitable for automotive 12 V and 24 V systems?
Yes, P6SMB30C is explicitly validated for ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b waveforms - covering common automotive transients including load dump, alternator ripple, and inductive switch-off. Its 25.6 V standoff and 41.4 V clamping align with 24 V nominal systems, and its –55°C to +150°C operating range supports under-hood and cabin deployment.
How does P6SMB30C compare to P6SMB30A in terms of electrical performance?
P6SMB30C is the bidirectional version of P6SMB30A. While P6SMB30A is unidirectional with VF = 5.0 V @ 50 A, P6SMB30C exhibits matched forward/reverse characteristics: same VBR (28.5–31.5 V), same VC (41.4 V @ 15 A), and same leakage (<1 µA). The key distinction is functional - P6SMB30C protects both polarities without external circuitry.
What is the maximum peak pulse current rating for P6SMB30C?
The maximum peak pulse current (IPPM) for P6SMB30C is 15.0 A under the standardized 10/1000 µs double-exponential waveform. This value is derived directly from its 600 W peak pulse power rating and 41.4 V clamping voltage (IPPM = PPPSM/VC), and is confirmed in the manufacturer's electrical specifications table for the P6SMB30A/C family.
Does P6SMB30C require special PCB layout considerations?
No special layout is needed beyond standard SMB footprint adherence. Because P6SMB30C is bidirectional, there is no anode/cathode orientation constraint - the cathode band serves only as a mechanical alignment marker. Keep trace inductance low by placing it adjacent to the protected node and using short, wide traces to ground to preserve sub-nanosecond response efficacy.
P6SMB30C 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):
- 24.3V
- Voltage - Breakdown (Min):
- 27V
- Voltage - Clamping (Max) @ Ipp:
- 43.5V
- Current - Peak Pulse (10/1000µs):
- 14A
- 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)
P6SMB30C FAQ
1.How can I place an order for P6SMB30C through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30C 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 P6SMB30C reliable?
The price and inventory of P6SMB30C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB30C is usually 5 days.
3.What payment methods are accepted for P6SMB30C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30C?
P6SMB30C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30C 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 P6SMB30C?
For technical support, including P6SMB30C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30C requirements.
6.How does Aetrix verify that P6SMB30C is sourced from the original manufacturer or authorized distributors?
All P6SMB30C 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 P6SMB30C meets industry standards.
7.What is the process for return or replacement of P6SMB30C?
All P6SMB30C units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30C, 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 P6SMB30C part is unused and in its original packaging.
Return procedure for P6SMB30C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30C Tags
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