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Taiwan Semiconductor Corporation P6SMB120CAH
- Part No.:
- P6SMB120CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB120CAH.pdf
- Description:
- TVS DIODE 102VWM 165VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,466
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Product details
Overview
P6SMB120CAH from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode designed for automotive-grade ESD and surge protection in power rails and signal lines. It features a 120V breakdown voltage (min 108V, max 132V), 102V stand-off voltage, clamps to ≤165V at 3.8A peak pulse current, and meets AEC-Q101 qualification for under-hood electronics.
For engineers reviewing the P6SMB120CAH datasheet, P6SMB120CAH pinout, P6SMB120CAH application, or P6SMB120CAH equivalent, key selection criteria include its DO-214AA (SMB) package compatibility with automated SMT assembly, bidirectional clamping symmetry, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and low leakage (<1µA @ 102V) for low-power system monitoring circuits.
Technical Context
The P6SMB120CAH implements a glass-passivated silicon junction optimized for fast transient response (<1.0ps rise time from 0V to VBR min) and stable clamping across temperature. Its bipolar configuration enables symmetrical reverse/forward surge suppression without polarity sensitivity, supporting both positive and negative transients on shared signal or supply lines.
Thermally, it delivers RθJC = 10°C/W and RθJA = 55°C/W in DO-214AA packaging, enabling reliable operation up to +150°C junction temperature. The device maintains <1µA reverse leakage at VWM = 102V, ensuring minimal standby current draw in always-on automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 108V / 132V - Ensures consistent breakdown initiation across manufacturing lot and temperature variation |
| VWM | 102V - Maximum continuous operating voltage before leakage exceeds 1µA; defines safe DC rail margin |
| VC @ IPPM | ≤165V @ 3.8A - Clamping voltage during 10/1000µs surge; limits downstream IC stress to safe levels |
| PPPSM | 600W - Peak pulse power handling per single 10/1000µs transient; supports ISO 7637-2 Pulse 1 & 2b |
| IR @ VWM | <1µA - Ultra-low leakage preserves battery life in always-on vehicle networks (e.g., CAN, LIN) |
| TJ max | +150°C - Enables placement near heat sources (ECUs, motor drivers) without derating |
| Package | DO-214AA (SMB) - Standardized SMT footprint compatible with JEDEC MS-012AC; 0.090g mass |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode band marking; bidirectional operation eliminates polarity dependency-both terminals function identically as transient-sink paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical electrical behavior in both directions; no orientation required during placement |
| Cathode band (marking) | Manufacturing reference only | Present for traceability but irrelevant to circuit function in CAH-series bidirectional devices |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood use including thermal cycling, humidity, and mechanical shock |
| Glass passivated junction | Enhances long-term reliability and moisture resistance vs. epoxy-passivated alternatives |
| ISO 7637-2 compliance | Withstands defined automotive load-dump and inductive-switching transients (Pulse 1/2a/2b/3a/3b) |
| Moisture sensitivity level 1 | No bake requirement prior to reflow; compatible with standard SMT assembly lines |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed between power rail and ground to clamp surges before reaching LDOs or microcontrollers. Use Value: Limits peak rail voltage to ≤165V during 10/1000µs pulses, preventing latch-up or gate oxide damage in downstream ICs. | Use Scenario: Shielding analog sensor inputs (e.g., pressure, temperature) from ESD events in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across differential signal pair or to ground to shunt ESD energy. Use Value: Sub-1µA leakage avoids DC offset errors; fast <1.0ps response prevents ESD-induced data corruption in ADC front-ends. |
| LED Lighting Driver Protection | Automotive CAN Transceiver Protection |
Use Scenario: Safeguarding constant-current LED drivers against inductive kickback from relay switching. IC Role / Device Role / Timing Role: TVS placed across driver output to absorb flyback energy when driving inductive loads. Use Value: 600W peak power rating handles repetitive 8.3ms half-sine surges up to 100A IFSM, extending driver lifetime. | Use Scenario: Adding secondary surge immunity to high-speed CAN FD transceivers in body control modules. IC Role / Device Role / Timing Role: Bidirectional TVS on CAN_H/CAN_L lines to suppress common-mode transients without distorting signal integrity. Use Value: Symmetrical clamping ensures equal voltage excursion on both lines, preserving differential signaling margins during ISO 7637-2 Pulse 2a. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ120CA | Same DO-214AA package, identical VBR/VC specs, but not AEC-Q101 qualified | Limited to industrial/commercial environments; unsuitable for automotive under-hood deployment | Select P6SMB120CAH where automotive qualification and extended temperature operation (+150°C) are mandatory |
| 1.5KE120CA | Through-hole TO-218 package; higher 1500W PPPM but slower response (>1ns) and larger board footprint | Better for high-energy, low-frequency surges; incompatible with automated SMT assembly | Choose P6SMB120CAH for space-constrained, high-volume SMT designs requiring AEC-Q101 and fast transient response |
Compared with SMBJ120CA and 1.5KE120CA, the P6SMB120CAH uniquely combines AEC-Q101 qualification, DO-214AA SMT compatibility, sub-nanosecond response, and guaranteed ≤165V clamping-making it optimal for automotive electronics where reliability, size, and speed are jointly critical.
Availability
P6SMB120CAH is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and LED driver surge mitigation requiring stable component supply and full AEC-Q101 traceability.
Supply support for P6SMB120CAH 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 P6SMB120CAH belongs to TSC's AEC-Q101-qualified P6SMBx(A)H series-engineered specifically for robust, high-reliability transient suppression in harsh automotive environments with stringent thermal and EMC requirements.
FAQ
What does the 'CAH' suffix indicate in P6SMB120CAH?
The 'CAH' suffix denotes a bidirectional configuration with AEC-Q101 qualification. Unlike unidirectional 'H' variants, P6SMB120CAH provides symmetrical clamping in both polarities-ideal for protecting differential lines like CAN or AC-coupled signals. It also confirms compliance with automotive reliability standards including temperature cycling, humidity testing, and mechanical shock per AEC-Q101 Rev D.
How does P6SMB120CAH differ from P6SMB120AH?
P6SMB120AH is unidirectional with cathode-anode polarity; P6SMB120CAH is bidirectional with identical electrical behavior in both directions. The 'C' prefix explicitly indicates bidirectional capability, while both share the same VBR range (108–132V), VWM (102V), and clamping voltage (≤165V). PCB layout must reflect this: P6SMB120CAH requires no orientation during placement, unlike P6SMB120AH.
Is P6SMB120CAH suitable for ISO 16750-2 load dump protection?
No-P6SMB120CAH is rated for ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 2a/2b (supply line transients), but not ISO 16750-2 load dump (which specifies 12V system peaks up to +170V for 400ms). For load dump, higher-energy devices like 5.0SMDJ130A or dedicated load-dump suppressors are required. P6SMB120CAH remains appropriate for lower-energy, faster transients typical of ESD and switching noise.
What is the maximum allowable mounting density for P6SMB120CAH on a PCB?
Based on thermal data (RθJA = 55°C/W), P6SMB120CAH requires ≥25 mm² of 1-oz copper pour connected to each pad for optimal heat dissipation. When placed adjacent to other power components, maintain ≥1.5 mm clearance to avoid localized hot spots exceeding +150°C junction temperature. No derating is needed below +105°C ambient if layout follows TSC's recommended pad dimensions for DO-214AA.
Does P6SMB120CAH meet JESD22-A114 for ESD immunity?
Yes-P6SMB120CAH is rated for >30kV HBM (Human Body Model) per JESD22-A114 due to its glass-passivated junction and low capacitance design. This exceeds standard automotive ESD requirements (e.g., ISO 10605 ±8kV contact discharge). Its <1.0ps response time ensures effective clamping before ESD energy couples into sensitive analog or digital circuitry downstream.
P6SMB120CAH 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):
- 102V
- Voltage - Breakdown (Min):
- 114V
- Voltage - Clamping (Max) @ Ipp:
- 165V
- Current - Peak Pulse (10/1000µs):
- 3.8A
- 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)
P6SMB120CAH FAQ
1.How can I place an order for P6SMB120CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB120CAH 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 P6SMB120CAH reliable?
The price and inventory of P6SMB120CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB120CAH is usually 5 days.
3.What payment methods are accepted for P6SMB120CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB120CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB120CAH?
P6SMB120CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB120CAH 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 P6SMB120CAH?
For technical support, including P6SMB120CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB120CAH requirements.
6.How does Aetrix verify that P6SMB120CAH is sourced from the original manufacturer or authorized distributors?
All P6SMB120CAH 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 P6SMB120CAH meets industry standards.
7.What is the process for return or replacement of P6SMB120CAH?
All P6SMB120CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB120CAH, 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 P6SMB120CAH part is unused and in its original packaging.
Return procedure for P6SMB120CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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