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Vishay General Semiconductor - Diodes Division P6SMB160CAHM3/H
- Part No.:
- P6SMB160CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB160CAHM3/H.pdf
- Description:
- TVS DIODE 136VWM 219VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,215
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Product details
Overview
P6SMB160CAHM3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 160 V standoff voltage (VWM), 219 V maximum clamping voltage (VC) at 2.7 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the P6SMB160CAHM3/H datasheet, P6SMB160CAHM3/H pinout, P6SMB160CAHM3/H application, or P6SMB160CAHM3/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and halogen-free RoHS compliance per HM3 suffix.
Technical Context
This device operates as a voltage-clamped crowbar during ESD or surge events, leveraging an avalanche breakdown mechanism to limit transient voltages across protected circuits. Its bidirectional structure enables symmetrical clamping in AC-coupled or floating signal paths without polarity sensitivity.
Designed for surface-mount automated assembly, it uses glass-passivated junction technology and meets J-STD-020 MSL Level 1 (260 °C peak reflow). The SMB package supports 0.2" × 0.2" copper pad layout per Vishay's recommended thermal design, enabling stable power dissipation up to 5.0 W at 50 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 136 V - Maximum continuous reverse voltage before conduction begins; defines operating margin below clamping threshold |
| VBR (Breakdown) | 152–168 V at 1 mA - Verified avalanche onset range; ensures predictable turn-on under transient stress |
| VC (Clamping) | 219 V at IPPM = 2.7 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines IC survivability |
| PPPM | 600 W - Sustained transient energy absorption capacity; validated per REA-defined 10/1000 μs waveform |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance; dictates derating above 25 °C ambient per Fig. 2 |
| TJ max | 150 °C - Maximum allowable junction temperature; constrains long-term reliability under repetitive surges |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. No polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | One terminal of symmetrical avalanche junction; accepts surge current from either direction |
| Cathode | Transient current exit (bidirectional) | Second terminal of symmetrical junction; completes low-impedance path during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled or floating lines (e.g., RS-485, CAN, sensor bridges) without polarity constraints |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) with margin when mounted on 5 mm × 5 mm copper pads |
| AEC-Q101 qualified (HM3) | Validated for automotive under-hood and chassis applications requiring extended temperature cycling and humidity robustness |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile (peak 260 °C) without baking preconditioning |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., EFT bursts), improving system-level immunity |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
|
Use Scenario: Protecting Hall-effect and thermistor signal lines in engine control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between sensor output and MCU ADC input. Use Value: Limits transient voltage to ≤219 V during 10/1000 μs surges, preventing ADC saturation and latch-up in downstream microcontrollers. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers against field wiring surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across input terminals to shunt induced transients before conditioning circuitry. Use Value: Maintains loop integrity by clamping transients within 1.5 ns response time, avoiding false triggering of fault detection circuits. |
| Telecom Line Card Protection | Consumer Appliance Motor Control |
|
Use Scenario: Shielding Ethernet PHY interface traces on telecom line cards from lightning-induced surges on PoE lines. IC Role / Device Role / Timing Role: Secondary-level TVS after gas discharge tube (GDT), providing precise low-clamp protection. Use Value: Achieves <220 V clamping at 2.7 A, ensuring PHY ICs rated for 25 V absolute max survive combined GDT + TVS staged protection. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Mounted across motor terminals to absorb inductive kickback during PWM switching. Use Value: Dissipates 600 W peak energy without degradation, extending motor driver MOSFET lifetime and reducing EMI emissions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160CA | Same VWM/VC, but unqualified for AEC-Q101; RθJA = 110 °C/W vs. 100 °C/W | Limited to commercial/industrial use; not approved for automotive ECUs or ADAS sensors | Select when AEC-Q101 is not required and cost sensitivity outweighs thermal margin |
| 1.5SMC160CA | Higher package thermal mass (SMC); VC = 228 V at 2.6 A; same 600 W rating | Preferred for high-energy surges where PCB space allows larger footprint; less suitable for dense automotive layouts | Choose for legacy designs using SMC footprints or where higher surge repetition tolerance is needed |
Compared with SMBJ160CA and 1.5SMC160CA, the P6SMB160CAHM3/H delivers tighter thermal performance (100 °C/W), AEC-Q101 validation, and SMB footprint compatibility - making it optimal for space-constrained automotive and industrial edge nodes requiring certified reliability.
Availability
P6SMB160CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O conditioning, telecom line card hardening, and consumer appliance motor drive applications requiring stable component supply and halogen-free compliance.
Supply support for P6SMB160CAHM3/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 optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for robust clamping, automated assembly, and compliance with AEC-Q101 and RoHS requirements.
FAQ
What does the 'HM3' suffix indicate in P6SMB160CAHM3/H?
The 'HM3' suffix in P6SMB160CAHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It confirms compliance with JESD201 Class 2 whisker resistance, MSL Level 1 reflow capability (260 °C peak), and automotive-grade reliability testing - distinguishing it from commercial-grade M3 or E3 variants. This makes P6SMB160CAHM3/H suitable for under-hood and chassis applications.
Is P6SMB160CAHM3/H unidirectional or bidirectional?
P6SMB160CAHM3/H is a bidirectional TVS diode, as confirmed by the 'CA' suffix and electrical characteristics applying equally in both directions. Its symmetric breakdown behavior (VBR = 152–168 V, VC = 219 V) enables protection of AC-coupled or floating signal paths - such as RS-485 differential pairs or bridge sensor outputs - without polarity concerns. No cathode band marking is present on the SMB package.
What is the maximum clamping voltage of P6SMB160CAHM3/H under surge conditions?
The maximum clamping voltage of P6SMB160CAHM3/H is 219 V, measured at IPPM = 2.7 A with a 10/1000 μs waveform. This value is specified in the Vishay datasheet (Document Number: 88370, Rev. 09-Jan-2024) and represents the peak voltage imposed on protected circuitry during standardized surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings.
Can P6SMB160CAHM3/H be used in place of P6SMB160A?
No - P6SMB160CAHM3/H is bidirectional while P6SMB160A is unidirectional. Their VBR, VC, and IPPM differ: P6SMB160A has VC = 219 V at 2.7 A (same clamping), but conducts only in one direction and includes a cathode band. Substituting P6SMB160CAHM3/H for P6SMB160A would eliminate polarity dependency but may alter circuit behavior in DC-biased paths. Always verify layout and biasing before interchange.
What PCB layout guidance applies to P6SMB160CAHM3/H for optimal thermal performance?
Vishay specifies mounting P6SMB160CAHM3/H on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 600 W pulse power and 5.0 W steady-state dissipation. Trace width should minimize inductance (<1 nH), and thermal vias under pads improve heat transfer. Avoid narrow necks or isolation gaps near the SMB footprint - these reduce thermal conductivity and risk premature failure during repetitive surges.
P6SMB160CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 136V
- Voltage - Breakdown (Min):
- 152V
- Voltage - Clamping (Max) @ Ipp:
- 219V
- Current - Peak Pulse (10/1000µs):
- 2.7A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB160CAHM3/H FAQ
1.How can I place an order for P6SMB160CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB160CAHM3/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 P6SMB160CAHM3/H reliable?
The price and inventory of P6SMB160CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB160CAHM3/H is usually 5 days.
3.What payment methods are accepted for P6SMB160CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB160CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB160CAHM3/H?
P6SMB160CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB160CAHM3/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 P6SMB160CAHM3/H?
For technical support, including P6SMB160CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB160CAHM3/H requirements.
6.How does Aetrix verify that P6SMB160CAHM3/H is sourced from the original manufacturer or authorized distributors?
All P6SMB160CAHM3/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 P6SMB160CAHM3/H meets industry standards.
7.What is the process for return or replacement of P6SMB160CAHM3/H?
All P6SMB160CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB160CAHM3/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 P6SMB160CAHM3/H part is unused and in its original packaging.
Return procedure for P6SMB160CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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