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Vishay General Semiconductor - Diodes Division P6SMB120CAHE3_A/H
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- Part No.:
- P6SMB120CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB120CAHE3_A/H.pdf
- Description:
- TVS DIODE 102VWM 165VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,492
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Product details
Overview
P6SMB120CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power lines. It features a 120 V standoff voltage (VWM), 137 V maximum clamping voltage at 3.6 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the P6SMB120CAHE3_A/H datasheet, P6SMB120CAHE3_A/H pinout, P6SMB120CAHE3_A/H application, or P6SMB120CAHE3_A/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, SMB (DO-214AA) package thermal resistance (RθJA = 100 °C/W), and compliance with J-STD-020 MSL level 1 reflow profile.
Technical Context
This device operates as a voltage-clamped transient protector with symmetrical breakdown behavior in both polarities due to its bidirectional construction. Its glass-passivated junction enables fast response time (<1 ns) and low incremental surge resistance, critical for suppressing ESD and inductive switching spikes before IC damage occurs.
The P6SMB120CAHE3_A/H is rated for repetitive 10/1000 μs pulses at 0.01% duty cycle and derates linearly above 25 °C ambient per Fig. 2. It meets AEC-Q101 qualification (automotive grade) and is RoHS-compliant with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 102 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown, min/max) | 114 V / 126 V at 1 mA - Tight 12 V window ensures predictable turn-on across production lots and temperature. |
| VC (Clamping, max) | 165 V at IPPM = 3.6 A - Limits downstream voltage stress during 600 W transient events without overstressing protected ICs. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 surges. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance under standard 0.2" × 0.2" copper pad layout; dictates derating above 25 °C ambient. |
| TJ max | +150 °C - Maximum junction temperature rating supports operation in under-hood automotive environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive applications including engine control modules, body electronics, and ADAS sensor interfaces. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated terminals. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H). Meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; reverse-biased during clamping | One of two symmetrical terminals; no polarity marking on bidirectional devices - interchangeable in PCB layout. |
| Cathode | Current exit terminal in forward bias; reverse-biased during clamping | Identical electrical role to Anode in bidirectional configuration; device functions identically regardless of orientation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Symmetrical VBR and VC in both directions eliminates need for orientation-aware placement in AC-coupled or floating lines. |
| 600 W peak pulse power | Handles high-energy transients such as load dump (ISO 7637-2) and lightning-induced surges (IEC 61000-4-5) without failure. |
| AEC-Q101 qualification | Validated for automotive reliability including temperature cycling, humidity bias, and mechanical shock - suitable for Tier-1 supply chains. |
| MSL Level 1 moisture sensitivity | Compatible with standard SMT reflow profiles up to 260 °C peak, eliminating bake requirements prior to assembly. |
| Glass passivated junction | Ensures stable leakage current (<1 μA at VWM) and long-term parameter stability under thermal and humidity stress. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from battery line transients and ESD. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt surge energy before reaching signal conditioning circuitry. Use Value: Prevents latch-up or gate oxide damage in 12 V/24 V automotive systems while maintaining signal integrity due to low capacitance (<100 pF). |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers against field wiring faults and induced surges. IC Role / Device Role / Timing Role: Primary overvoltage protection element located between terminal block and op-amp input stage. Use Value: Enables robust operation in factory-floor environments where cable runs act as antennas for switching noise and lightning coupling. |
| Telecom Power Supply Rail | Consumer Appliance Motor Control |
Use Scenario: Clamping voltage spikes on DC-DC converter outputs feeding sensitive baseband processors in telecom infrastructure equipment. IC Role / Device Role / Timing Role: Secondary rail protector downstream of primary bulk TVS, providing fine-grained clamping near load ICs. Use Value: Reduces risk of brownout or reset events caused by transient-induced voltage droop on regulated 3.3 V or 5 V rails. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Freewheeling path across motor terminals to absorb stored inductive energy during MOSFET turn-off. Use Value: Extends MOSFET lifetime by limiting VDS overshoot and prevents false triggering of overvoltage protection circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ120CA | Same VWM (102 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or sustained surge conditions. | Select when board space is constrained and surge energy is limited to IEC 61000-4-2 ESD only. |
| SMCJ120CA | Same VWM (102 V), higher PPPM (1500 W), larger SMC package (DO-214AB), RθJA = 40 °C/W | Supports longer-duration surges and higher repetition rates; requires more PCB area and thermal relief. | Select when protecting high-power industrial drives or renewable energy inverters exposed to frequent lightning surges. |
Compared with SMAJ120CA and SMCJ120CA, the P6SMB120CAHE3_A/H delivers optimal balance of 600 W surge capacity, AEC-Q101 qualification, and SMB footprint - making it ideal for space-constrained automotive and industrial designs requiring validated reliability without over-engineering.
Availability
P6SMB120CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom DC rail stabilization requiring stable component supply and full traceability.
Supply support for P6SMB120CAHE3_A/H 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The P6SMB series was engineered for high-reliability transient suppression in harsh environments - particularly targeting automotive, industrial, and telecom applications where consistent clamping performance and AEC-Q101 compliance are mandatory.
FAQ
What does the "CA" suffix indicate in P6SMB120CAHE3_A/H?
The "CA" suffix denotes a bidirectional configuration: the P6SMB120CAHE3_A/H provides symmetrical clamping in both polarities, with identical breakdown and clamping characteristics regardless of voltage polarity applied. This eliminates orientation constraints during PCB layout and supports AC-coupled or floating signal lines - unlike unidirectional variants (e.g., P6SMB120A) that require cathode alignment.
Is P6SMB120CAHE3_A/H qualified for automotive use?
Yes, P6SMB120CAHE3_A/H is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's P6SMB datasheet (Rev. 09-Jan-2024, Doc. #88370). It has undergone stress testing for temperature cycling, humidity bias, and mechanical shock per automotive reliability standards - making it suitable for engine control units, ADAS sensors, and body electronics.
What is the maximum clamping voltage of P6SMB120CAHE3_A/H and at what current is it specified?
The maximum clamping voltage (VC) of P6SMB120CAHE3_A/H is 165 V, measured at a peak pulse current (IPPM) of 3.6 A using a 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during a 600 W transient event and is critical for ensuring downstream ICs remain within their absolute maximum ratings.
How does the SMB (DO-214AA) package of P6SMB120CAHE3_A/H compare thermally to larger packages like SMC?
The SMB package of P6SMB120CAHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W under standard 0.2" × 0.2" copper pad layout, compared to ~40 °C/W for the larger SMC (DO-214AB) package. This means the P6SMB120CAHE3_A/H requires stricter ambient temperature control or reduced duty cycle in high-power surge scenarios to avoid exceeding its +150 °C TJ max rating.
Can P6SMB120CAHE3_A/H be used in place of a unidirectional TVS like P6SMB120A?
No - P6SMB120CAHE3_A/H is bidirectional and lacks polarity marking, while P6SMB120A is unidirectional with a defined cathode band. Substituting them requires verifying circuit topology: bidirectional use is mandatory for AC signals or floating grounds, whereas unidirectional types are required for DC rails with defined ground reference. Interchangeability is not permitted without schematic and layout review.
P6SMB120CAHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 3.6A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB120CAHE3_A/H FAQ
1.How can I place an order for P6SMB120CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB120CAHE3_A/H 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 P6SMB120CAHE3_A/H reliable?
The price and inventory of P6SMB120CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB120CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB120CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB120CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB120CAHE3_A/H?
P6SMB120CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB120CAHE3_A/H 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 P6SMB120CAHE3_A/H?
For technical support, including P6SMB120CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB120CAHE3_A/H requirements.
6.How does Aetrix verify that P6SMB120CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB120CAHE3_A/H 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 P6SMB120CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB120CAHE3_A/H?
All P6SMB120CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB120CAHE3_A/H, 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 P6SMB120CAHE3_A/H part is unused and in its original packaging.
Return procedure for P6SMB120CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB120CAHE3_A/H Tags
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