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Taiwan Semiconductor Corporation P6SMB15CAH
- Part No.:
- P6SMB15CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB15CAH.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,414
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Product details
Overview
P6SMB15CAH from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, with breakdown voltage 14.3–15.8 V, stand-off voltage 12.8 V, clamping voltage 21.2 V at 29 A peak pulse current, and AEC-Q101 qualification for automotive electronics protection.
For engineers reviewing the P6SMB15CAH datasheet, P6SMB15CAH pinout, P6SMB15CAH application, or P6SMB15CAH equivalent, key selection criteria include bidirectional clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, low leakage (<1 µA @ 12.8 V), and thermal robustness (TJ = –55 to +150 °C) in space-constrained PCB layouts.
Technical Context
P6SMB15CAH is a glass-passivated, bipolar junction TVS diode designed for unidirectional or bidirectional surge suppression in DC power rails and signal lines. Its symmetrical I-V characteristics enable identical clamping in both polarities, supporting reverse-polarity protection and ESD immunity without external polarity management.
The device delivers 600 W non-repetitive peak pulse power (10/1000 µs waveform), with fast response time <1.0 ps and junction-to-ambient thermal resistance of 55 °C/W. It meets JESD201 Class 2 whisker resistance and moisture sensitivity level 1 per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.3 V / 15.8 V - Ensures reliable conduction onset above normal operating voltage while avoiding false triggering |
| VWM | 12.8 V - Maximum continuous reverse working voltage compatible with 12 V automotive systems |
| VC @ IPPM | 21.2 V @ 29 A - Clamped voltage during 10/1000 µs surge limits downstream IC stress to safe levels |
| IPPM | 29 A - Peak surge current capacity sufficient for ISO 7637-2 Pulse 1 (inductive load dump) and Pulse 2b (battery disconnect) |
| IR @ VWM | <1 µA - Negligible standby leakage preserves battery life in always-on vehicle modules |
| TJ max | +150 °C - Enables operation in under-hood environments without derating |
| Package | DO-214AA (SMB) - Standardized surface-mount footprint compatible with automated assembly and IPC-7351B land patterns |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, cathode band marking for polarity identification; weight ≈ 0.090 g; UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry point in forward bias; common reference for bidirectional clamping | Connected to protected line or ground return path depending on circuit topology |
| Cathode (banded end) | Current exit point in forward bias; defines polarity marking for unidirectional variants | Band identifies terminal orientation during automated placement; irrelevant for bidirectional operation but critical for PCB silkscreen alignment |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per stress test requirements |
| Glass-passivated junction | Enhances long-term stability and reduces parameter drift under thermal and electrical stress vs. epoxy-passivated alternatives |
| ISO 7637-2 compliance | Guarantees robustness against standardized automotive transients (Pulse 1, 2a, 2b, 3a, 3b) without external filtering components |
| Moisture sensitivity level 1 | Eliminates need for dry-packaging or baking prior to reflow, reducing manufacturing overhead and handling risk |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU Directive 2011/65/EU for environmentally restricted substances |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery-supplied ECUs exposed to load dump and jump-start surges. IC Role / Device Role: Primary overvoltage clamp on main power input before LDOs and microcontrollers. Use Value: Limits transient voltage to ≤21.2 V, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V logic. | Use Scenario: Analog sensor outputs (e.g., pressure, temperature) routed across noisy industrial enclosures. IC Role / Device Role: Bidirectional ESD and EFT protector on differential or single-ended signal lines. Use Value: Sub-1 µA leakage avoids signal offset errors; symmetric clamping maintains signal integrity during ±8 kV contact ESD events. |
| LED Lighting Driver Protection | Automotive CAN Transceiver Protection |
Use Scenario: Constant-current LED drivers subjected to inductive switching spikes from relay coils or solenoids. IC Role / Device Role: Snubber across driver output or supply rail to absorb energy from back-EMF. Use Value: 600 W peak power rating handles repetitive 100 ms pulses without degradation; SMB footprint fits tight board spacing near LEDs. | Use Scenario: CAN H/L bus lines in body control modules facing coupled transients from nearby high-current actuators. IC Role / Device Role: Common-mode TVS pair protecting differential CAN interface against ISO 16750-2 surges. Use Value: 12.8 V VWM ensures no interference during normal CAN signaling (±2 V differential); 21.2 V clamping prevents transceiver saturation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15CA | Same DO-214AA package, 14.3–15.8 V VBR, but 600 W rating per JEDEC standards; slightly higher VC (22.5 V @ 26.5 A) | Identical automotive and industrial use cases; minor derating needed for margin-critical 12 V systems | Select when sourcing from alternate suppliers with tighter inventory on SMBJ-series stock |
| 1.5SMC15CA | DO-214AB (SMC) package (larger footprint), same electrical specs; 1.5 kW peak power rating but same 600 W 10/1000 µs capability | Requires PCB layout change; preferred where higher thermal mass improves long-pulse survivability | Choose for designs needing enhanced thermal dissipation in high-ambient-temperature zones |
Compared with SMBJ15CA and 1.5SMC15CA, P6SMB15CAH offers identical clamping performance in a smaller SMB footprint and AEC-Q101 validation-making it optimal for space-constrained automotive modules requiring certified reliability without layout revision.
Availability
P6SMB15CAH is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, LED lighting drivers, and CAN bus protection requiring stable component supply across extended production lifecycles.
Supply support for P6SMB15CAH 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 power management, protection, and signal conditioning devices.
The P6SMB series belongs to TSC's AEC-Q101-qualified TVS portfolio engineered specifically for harsh-environment transient suppression in automotive and industrial control systems.
FAQ
What does the "CAH" suffix indicate in P6SMB15CAH?
The "CAH" suffix denotes a bidirectional configuration with AEC-Q101 qualification. "C" indicates bidirectional operation, "A" specifies the tighter VBR tolerance (±5% for P6SMB15AH variants), and "H" confirms halogen-free construction per IEC 61249-2-21. This distinguishes P6SMB15CAH from unidirectional P6SMB15H and non-AEC-Q101 P6SMB15A variants.
How does P6SMB15CAH perform under ISO 7637-2 Pulse 1 conditions?
P6SMB15CAH clamps to ≤21.2 V during a 10/1000 µs surge up to 29 A, well below the 36 V maximum stress limit defined in ISO 7637-2 Pulse 1 for 12 V systems. Its 600 W rating and low thermal resistance (55 °C/W) ensure reliable single-event suppression without thermal runaway, making P6SMB15CAH suitable for direct placement on battery feed lines.
Can P6SMB15CAH replace P6SMB15A in an existing design?
Yes-P6SMB15CAH is a drop-in replacement for P6SMB15A in most cases: same DO-214AA package, identical pinout, and overlapping VBR (14.3–15.8 V vs. 13.5–16.5 V). However, P6SMB15CAH adds AEC-Q101 qualification and halogen-free compliance, so validation per automotive stress tests is recommended before full deployment.
What is the maximum allowable ambient temperature for continuous operation of P6SMB15CAH?
P6SMB15CAH supports continuous operation from –55 °C to +150 °C junction temperature. At 25 °C ambient, its 55 °C/W RθJA allows ~2.2 W steady-state dissipation. For 100 °C ambient, derating to ≤1.4 W is required-well within its 3 W Ptot rating-ensuring robust performance in engine bay or industrial enclosure environments.
Does P6SMB15CAH require special PCB layout considerations?
Yes-minimize trace inductance between P6SMB15CAH and protected node by placing it as close as possible to the connector or IC input. Use wide, short copper pours for anode/cathode connections and avoid vias in the current path. The DO-214AA footprint requires IPC-7351B compliant pads (2.5 × 4.5 mm body, 0.8 mm lead width) to ensure solder joint reliability during thermal cycling.
P6SMB15CAH 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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 29A
- 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)
P6SMB15CAH FAQ
1.How can I place an order for P6SMB15CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB15CAH 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 P6SMB15CAH reliable?
The price and inventory of P6SMB15CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB15CAH is usually 5 days.
3.What payment methods are accepted for P6SMB15CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB15CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB15CAH?
P6SMB15CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB15CAH 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 P6SMB15CAH?
For technical support, including P6SMB15CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB15CAH requirements.
6.How does Aetrix verify that P6SMB15CAH is sourced from the original manufacturer or authorized distributors?
All P6SMB15CAH 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 P6SMB15CAH meets industry standards.
7.What is the process for return or replacement of P6SMB15CAH?
All P6SMB15CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB15CAH, 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 P6SMB15CAH part is unused and in its original packaging.
Return procedure for P6SMB15CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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