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Taiwan Semiconductor Corporation P6SMB22CAH
- Part No.:
- P6SMB22CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB22CAH.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,527
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Product details
Overview
P6SMB22CAH from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a breakdown voltage range of 20.9–23.1 V, clamping voltage of 30.6 V at 20 A peak pulse current, and standoff voltage of 18.8 V. It features glass-passivated junction, AEC-Q101 qualification, and ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance for automotive-level surge immunity.
For engineers reviewing the P6SMB22CAH datasheet, P6SMB22CAH pinout, P6SMB22CAH application, or P6SMB22CAH equivalent, this device is selected for high-reliability DC power rail and signal line protection in automotive ECUs, industrial sensors, and LED driver circuits where fast clamping (<1.0 ps response), low leakage (<1 µA @ 18.8 V), and robust 150°C junction operation are required.
Technical Context
The P6SMB22CAH operates as a bipolar TVS diode-symmetrical clamping in both forward and reverse directions-enabling single-device protection of AC-coupled or floating signal paths. Its DO-214AA (SMB) package supports automated placement and delivers 600 W non-repetitive peak pulse power handling per 10/1000 µs waveform.
Thermal performance is defined by RθJC = 10 °C/W and RθJA = 55 °C/W, enabling reliable operation up to TJ = 150 °C. The device exhibits a VBR temperature coefficient of 0.092 %/°C and 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) | 20.9 V / 23.1 V - Ensures consistent avalanche initiation across production lots and temperature range |
| VWM | 18.8 V - Maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 30.6 V @ 20 A - Clamped voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPPSM | 600 W - Peak pulse power rating defines maximum transient energy absorption capability |
| IR @ VWM | <1 µA - Ultra-low leakage preserves battery life and signal integrity in always-on systems |
| TJ max | +150 °C - Enables under-hood automotive deployment without derating in high-ambient environments |
| Response time | <1.0 ps - Sub-nanosecond turn-on ensures protection before sensitive circuitry sustains damage |
Pinout & Package
DO-214AA (SMB) surface-mount package: 2-terminal, polarity-marked cathode band (for unidirectional variants); P6SMB22CAH is bidirectional - no polarity marking required. Case meets UL 94V-0 flammability rating; matte tin-plated leads comply with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Transient current entry (reverse bias) | Accepts surge current during negative transients; symmetrical with Cathode due to bidirectional design |
| Cathode (K) | Transient current entry (forward bias) | Accepts surge current during positive transients; identical clamping behavior to Anode terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, UHAST, and ESD |
| Glass passivated junction | Enhances long-term reliability and stability of VBR under thermal cycling and humidity exposure |
| ISO 7637-2 compliance | Withstands standardized automotive load-dump and inductive-switching transients (Pulse 1/2a/2b/3a/3b) |
| Moisture sensitivity level 1 | No floor-life limitation or bake requirement prior to reflow; supports standard SMT assembly flow |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained applications |
Applications
| Automotive Body Control Module (BCM) | Industrial CAN Transceiver Protection |
|---|---|
Use Scenario: Protects microcontroller I/O and LIN bus lines from load-dump and jump-start transients in vehicle door modules and lighting controllers. IC Role / Device Role: Bidirectional clamping element placed directly at connector interface to shunt surge energy before reaching ASIC. Use Value: Maintains system uptime by preventing latch-up or gate oxide rupture in 5 V/3.3 V logic interfaces during 12 V/24 V automotive surges. | Use Scenario: Shields isolated CAN FD transceivers from EFT bursts and coupled noise on factory-floor communication buses. IC Role / Device Role: Low-capacitance TVS placed differential across CAN_H/CAN_L to preserve signal integrity while clamping common-mode surges. Use Value: Enables >10 kV ESD contact immunity and sustained operation under repetitive 2 kV EFT (IEC 61000-4-4) without bit errors or reset events. |
| LED Driver Power Input Stage | Smart Sensor Signal Conditioning |
Use Scenario: Guards constant-current LED driver ICs against inductive kickback from relay-controlled 24 V supply rails in streetlight and signage systems. IC Role / Device Role: Primary overvoltage clamp on input capacitor node, absorbing 600 W pulses without degradation. Use Value: Eliminates need for secondary crowbar circuits or fuses, reducing BOM count and board space while meeting IEC 61000-4-5 Level 3. | Use Scenario: Protects analog front-end amplifiers and ADC inputs in MEMS-based vibration sensors exposed to ESD during handling or field maintenance. IC Role / Device Role: Localized TVS at sensor PCB edge, minimizing trace inductance to achieve sub-ns clamping response. Use Value: Preserves ±10 mV measurement accuracy by limiting transient-induced offset shift to <1 LSB during 8 kV HBM ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22CA | Same DO-214AA package, identical VBR (20.9–23.1 V), but rated at 600 W with slightly higher VC = 33.2 V @ 19 A | Marginally lower peak pulse current rating; suitable where layout allows minor clamping voltage increase | Select SMBJ22CA if sourcing from alternate suppliers with tighter lead times; verify VC margin in 24 V rail designs. |
| 1.5SMC22CA | Larger DO-214AB (SMC) package, same electrical specs, 1.5 kW rating - over-spec'd power handling | Requires PCB footprint change; used where legacy designs mandate SMC or higher surge margin is mandated | Choose 1.5SMC22CA only when mechanical compatibility with existing SMC land patterns is required or 1.5 kW headroom is explicitly validated. |
Compared with SMBJ22CA and 1.5SMC22CA, P6SMB22CAH offers optimal balance of compact SMB footprint, AEC-Q101 qualification, and precise 30.6 V clamping-making it preferred for space-constrained automotive and industrial modules where qualification and thermal efficiency are prioritized over raw power headroom.
Availability
P6SMB22CAH is available at Aetrix Electronics and suitable for automotive body electronics, industrial CAN networks, and LED driver power stages requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P6SMB22CAH 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, MOSFETs, and power management devices.
The P6SMB series belongs to TSC's AEC-Q101-qualified transient suppression portfolio, engineered specifically for automotive-grade DC power line and signal interface protection with emphasis on low leakage, tight VBR tolerance, and robust surge endurance.
FAQ
What is the exact breakdown voltage range for P6SMB22CAH?
The P6SMB22CAH has a guaranteed breakdown voltage range of 20.9 V to 23.1 V at 1 mA test current, measured per ANSI/IEEE C62.35. This range reflects manufacturing tolerance and ensures reliable avalanche initiation across temperature and lifetime-critical for predictable clamping in safety-critical automotive applications.
Is P6SMB22CAH unidirectional or bidirectional?
P6SMB22CAH is a bidirectional TVS diode, indicated by the "CAH" suffix. It provides symmetrical clamping in both polarities, making it suitable for protecting AC-coupled lines, differential buses like CAN, or floating sensor inputs without requiring orientation-specific placement on the PCB.
Does P6SMB22CAH meet automotive qualification standards?
Yes, P6SMB22CAH is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements. It also complies with JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1-fully supporting automotive under-hood and chassis-mounted applications.
What is the maximum clamping voltage of P6SMB22CAH under surge conditions?
The maximum clamping voltage of P6SMB22CAH is 30.6 V at 20 A peak pulse current (10/1000 µs waveform). This value is measured under standardized surge conditions and defines the upper voltage limit imposed on protected circuitry during transient events.
Can P6SMB22CAH be used in place of P6SMB22AH?
No-P6SMB22AH is unidirectional (single-polarity), while P6SMB22CAH is bidirectional. Substituting them requires verifying circuit topology: P6SMB22CAH may be used in place of P6SMB22AH only if polarity independence is acceptable and the cathode marking is omitted; however, VC and leakage differ slightly (P6SMB22AH: VC = 31.9 V @ 19 A), so functional validation is mandatory.
P6SMB22CAH 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):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 20A
- 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)
P6SMB22CAH FAQ
1.How can I place an order for P6SMB22CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB22CAH 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 P6SMB22CAH reliable?
The price and inventory of P6SMB22CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB22CAH is usually 5 days.
3.What payment methods are accepted for P6SMB22CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB22CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB22CAH?
P6SMB22CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB22CAH 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 P6SMB22CAH?
For technical support, including P6SMB22CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB22CAH requirements.
6.How does Aetrix verify that P6SMB22CAH is sourced from the original manufacturer or authorized distributors?
All P6SMB22CAH 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 P6SMB22CAH meets industry standards.
7.What is the process for return or replacement of P6SMB22CAH?
All P6SMB22CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB22CAH, 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 P6SMB22CAH part is unused and in its original packaging.
Return procedure for P6SMB22CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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