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Vishay General Semiconductor - Diodes Division P6SMB160CAHM3_B/I
- Part No.:
- P6SMB160CAHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB160CAHM3_B/I.pdf
- Description:
- 600W,160V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,809
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Product details
Overview
P6SMB160CAHM3_B/I 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 160 V standoff voltage (VWM), 219 V maximum clamping voltage (VC) at 2.7 A peak pulse current (IPPM), and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line conditioning.
For engineers reviewing the P6SMB160CAHM3_B/I datasheet, P6SMB160CAHM3_B/I pinout, P6SMB160CAHM3_B/I application, or P6SMB160CAHM3_B/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, SMB (DO-214AA) package thermal performance, and compliance with IEC 61000-4-2/4-4/4-5 surge immunity requirements.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ leakage at 136 V), but switches to low-impedance conduction within <1 ns when transient voltage exceeds its breakdown threshold (VBR min = 152 V, max = 168 V at 1 mA). Its bidirectional architecture enables symmetrical clamping across both polarities without polarity marking.
Thermally, it sustains 150 °C junction temperature with RθJA = 100 °C/W and RθJL = 20 °C/W, and is rated for repetitive 0.01% duty cycle pulses. The halogen-free, RoHS-compliant HM3 suffix confirms JESD201 Class 2 whisker resistance and MSL Level 1 moisture sensitivity per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 136 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping onset. |
| VBR (Breakdown) | 152–168 V at 1 mA - Voltage range where device transitions from high- to low-impedance state; ensures predictable turn-on. |
| VC (Clamping) | 219 V at IPPM = 2.7 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM | 600 W - Surge energy handling capacity per single 10/1000 μs pulse; supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) testing. |
| ID (Leakage) | 1.0 μA max at VWM - Minimal standby current draw; preserves signal integrity and battery life in always-on systems. |
| TJ max | 150 °C - Maximum junction temperature; enables operation in under-hood automotive or enclosed industrial enclosures. |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline with 5.0 mm × 5.0 mm copper pad thermal footprint. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, dimensions 4.57 mm × 3.94 mm × 2.20 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; common terminal in bidirectional configuration | No polarity marking required; symmetric conduction enables AC/DC line protection without orientation constraints. |
| Cathode | Current exit point in forward bias; common terminal in bidirectional configuration | Shared with Anode in bidirectional mode; terminals function identically for positive/negative transients. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness - suitable for engine control, ADAS sensors, and infotainment power rails. |
| 600 W peak pulse power | Withstands 10/1000 μs surges up to 2.7 A without degradation - meets IEC 61000-4-5 surge immunity for industrial Ethernet and CAN FD interfaces. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns response) - critical for protecting 3.3 V/5 V logic-level ICs. |
| Halogen-free & RoHS-compliant (HM3) | Meets JESD201 Class 2 whisker resistance and JEDEC MSL Level 1 - supports lead-free reflow (260 °C peak) and long-term field reliability. |
| Glass passivated junction | Enhances stability of breakdown voltage over time and temperature - reduces parameter drift in high-humidity or thermally cycled environments. |
Applications
| Automotive Sensor Protection | Industrial PLC Analog Input |
|---|---|
|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Shunt TVS diode placed directly at connector interface to clamp transients before reaching MCU ADC or signal conditioner. Use Value: Limits induced voltage to ≤219 V during 100 V/50 ms load dump events, preventing latch-up or gate oxide damage in 5 V tolerant front-end circuitry. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers against EFT bursts and lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping element across differential input terminals to suppress ±2 kV EFT (IEC 61000-4-4) and ±1 kV surge (IEC 61000-4-5). Use Value: Maintains signal fidelity with <1 μA leakage at 24 V supply while clamping transients to safe levels for precision op-amps and isolators. |
| Telecom Line Interface | Consumer USB Power Delivery |
|
Use Scenario: Shielding RS-485 transceivers and PoE-powered devices from induced surges on twisted-pair data lines in outdoor base stations. IC Role / Device Role / Timing Role: Primary overvoltage clamp on differential pair, coordinated with common-mode chokes and secondary GDTs. Use Value: Delivers symmetrical clamping (±219 V) with <1 ns response, preserving signal integrity up to 10 Mbps while surviving repeated 600 W surges. |
Use Scenario: Secondary-level surge suppression on USB-C VBUS lines after primary fuse and primary TVS, targeting fast ESD events per IEC 61000-4-2 Level 4. IC Role / Device Role / Timing Role: Fast-response bidirectional clamp positioned adjacent to USB controller to limit ESD-induced voltage spikes to <220 V. Use Value: Enables robust 10 kV contact / 15 kV air discharge ESD protection without compromising 5–20 V PD negotiation timing or voltage regulation accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ160CA | Same VWM (136 V) and VC (219 V), but lower PPPM (400 W); SMB package identical; no AEC-Q101 qualification. | Limited to commercial-grade industrial or consumer use; unsuitable for automotive under-hood deployment. | Select when cost sensitivity outweighs automotive qualification and 600 W surge margin is not required. |
| 1.5KE160CA | Higher power (1500 W), axial-leaded DO-201 package; larger footprint and manual assembly only; same VWM/VC specs. | Used where board space allows and automated SMT is not mandatory; higher thermal mass improves single-pulse survivability. | Choose for legacy designs or high-energy surge zones where PCB real estate permits through-hole mounting. |
Compared with SMAJ160CA and 1.5KE160CA, P6SMB160CAHM3_B/I uniquely combines AEC-Q101 qualification, 600 W SMT-rated surge capability, and halogen-free construction - making it the optimal choice for next-generation automotive and industrial edge nodes requiring zero-layout change upgrades from legacy TVS families.
Availability
P6SMB160CAHM3_B/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC analog inputs, and telecom line conditioning requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P6SMB160CAHM3_B/I 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB Series was engineered for high-reliability transient suppression in space-constrained, high-surge environments - particularly targeting automotive, industrial automation, and communications infrastructure where AEC-Q101 compliance and consistent clamping behavior are mandatory.
FAQ
What is the meaning of the "HM3_B/I" suffix in P6SMB160CAHM3_B/I?
The "HM3" denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance; "B" indicates AEC-Q101 qualification for the 6.8 V to 220 V voltage range; and "I" specifies 3200-unit tape-and-reel packaging on a 13-inch diameter reel. This full suffix confirms P6SMB160CAHM3_B/I meets automotive reliability standards while supporting high-volume SMT assembly.
Does P6SMB160CAHM3_B/I have polarity markings on the package?
No - P6SMB160CAHM3_B/I is a bidirectional TVS diode and carries no cathode band or polarity marking. Its symmetrical internal structure allows installation in either orientation on PCBs, simplifying layout and eliminating orientation-related assembly errors. This distinguishes it from unidirectional variants like P6SMB160A, which feature a visible cathode band.
What is the maximum clamping voltage of P6SMB160CAHM3_B/I under standard test conditions?
The maximum clamping voltage (VC) of P6SMB160CAHM3_B/I is 219 V, measured at a peak pulse current (IPPM) of 2.7 A using the standardized 10/1000 μs double-exponential waveform. This value is guaranteed across the full operating temperature range (−65 °C to +150 °C) and defines the upper voltage limit imposed on protected circuits during surge events.
Can P6SMB160CAHM3_B/I be used in place of P6SMB160A in existing designs?
No - P6SMB160CAHM3_B/I is bidirectional, whereas P6SMB160A is unidirectional and features a cathode band. Substituting them requires verifying circuit topology: bidirectional use cases (e.g., AC lines, differential buses) support direct replacement, but unidirectional DC rails require polarity-aware redesign. Always confirm schematic symbol and layout compatibility before substitution.
How does the thermal resistance of P6SMB160CAHM3_B/I affect PCB layout?
P6SMB160CAHM3_B/I has RθJA = 100 °C/W and RθJL = 20 °C/W, meaning effective heat dissipation relies heavily on copper pad area and via placement. Vishay specifies 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal; reducing pad size increases junction temperature rise, potentially derating surge capability. For sustained surge duty, add thermal vias under pads to inner ground/power planes.
P6SMB160CAHM3_B/I 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:
- Active
- 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_B/I FAQ
1.How can I place an order for P6SMB160CAHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB160CAHM3_B/I 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_B/I reliable?
The price and inventory of P6SMB160CAHM3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB160CAHM3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB160CAHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB160CAHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB160CAHM3_B/I?
P6SMB160CAHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB160CAHM3_B/I 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_B/I?
For technical support, including P6SMB160CAHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB160CAHM3_B/I requirements.
6.How does Aetrix verify that P6SMB160CAHM3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB160CAHM3_B/I 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_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB160CAHM3_B/I?
All P6SMB160CAHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB160CAHM3_B/I, 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_B/I part is unused and in its original packaging.
Return procedure for P6SMB160CAHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB160CAHM3_B/I Tags
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