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Vishay General Semiconductor - Diodes Division P6SMB170CAHM3_B/H
- Part No.:
- P6SMB170CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB170CAHM3_B/H.pdf
- Description:
- 600W,170V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,101
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Product details
Overview
P6SMB170CAHM3_B/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 170 V standoff voltage (VWM), 189 V minimum breakdown voltage (VBR), and 600 W peak pulse power (10/1000 μs). It clamps transients to 234 V at 2.6 A peak pulse current and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the P6SMB170CAHM3_B/H datasheet, P6SMB170CAHM3_B/H pinout, P6SMB170CAHM3_B/H application, or P6SMB170CAHM3_B/H equivalent, key selection criteria include bidirectional clamping capability, 150 °C max junction temperature, MSL Level 1 moisture sensitivity, and halogen-free RoHS compliance per HM3 suffix - critical for automotive-grade ESD and surge protection in sensor interfaces and power rails.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling suppression of positive and negative transients without polarity constraints. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns), while low incremental surge resistance supports effective clamping under high-energy surges.
The device is rated for 600 W peak pulse power with 10/1000 μs waveform at 0.01% duty cycle and derates linearly above 25 °C ambient, with thermal resistance RθJA = 100 °C/W. It meets JESD201 Class 2 whisker resistance and is qualified to AEC-Q101 for automotive underhood and infotainment applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 145 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (Breakdown Voltage) | 162–179 V at 1.0 mA test current - Ensures reliable turn-on within tight tolerance band |
| VC (Clamping Voltage) | 234 V at IPPM = 2.6 A - Limits transient voltage seen by protected ICs during surge events |
| PPPM (Peak Pulse Power) | 600 W (10/1000 μs) - Sustains high-energy lightning or inductive-switching surges without failure |
| ID (Reverse Leakage) | ≤1.0 μA at 145 V - Minimizes standby power loss and avoids false triggering in low-power circuits |
| TJ max | 150 °C - Enables operation in under-hood automotive environments and industrial enclosures |
| Package | SMB (DO-214AA) - Surface-mount footprint compatible with automated assembly and 0.2" × 0.2" copper pad layout |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 flammability rating, MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common node in bidirectional configuration | No polarity marking required - symmetrical conduction enables dual-direction transient suppression |
| Cathode | Current exit terminal in forward bias; common node in bidirectional configuration | Identical electrical role to Anode - terminals are functionally interchangeable for AC transients |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled lines or differential buses without external polarity management |
| AEC-Q101 qualification | Validated for automotive use including engine control units, ADAS sensors, and infotainment power supplies |
| Halogen-free & RoHS-compliant (HM3) | Meets global environmental regulations and eliminates corrosive halogen emissions during board reflow or end-of-life incineration |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) when properly mounted on 5 mm × 5 mm copper pads |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on downstream components compared to higher-ratio TVS devices |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors in engine control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed across signal pair (e.g., LIN or analog sensor outputs) to shunt transients before they reach ADC inputs. Use Value: Prevents sensor signal corruption and microcontroller latch-up during 12 V system load dump events up to 35 V/100 ms. |
Use Scenario: Safeguarding CANH/CANL differential pair in factory automation nodes subject to ground bounce and EFT bursts. IC Role / Device Role / Timing Role: Paired P6SMB170CAHM3_B/H devices (one per line) suppress common-mode surges while preserving signal integrity up to 1 Mbps. Use Value: Maintains CAN communication continuity during 4 kV ESD contact discharge per IEC 61000-4-2 without bus shutdown. |
| Telecom Power Input Protection | Consumer USB-C Port Surge Suppression |
|
Use Scenario: Front-end protection of 24 V DC input on PoE-powered network switches against induced lightning surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary clamping device upstream of DC-DC converter, sized to absorb 600 W surges per IEC 61000-4-5. Use Value: Limits input rail overshoot to ≤234 V, preventing damage to primary-side MOSFETs and controller ICs during 10/1000 μs transients. |
Use Scenario: Secondary-level protection on VBUS line of USB-C receptacles in portable monitors and docking stations. IC Role / Device Role / Timing Role: Fast-response TVS placed after fuse and before USB PD controller to clamp ESD and hot-swap spikes. Use Value: Clamps 8 kV contact ESD to <234 V in <1 ns, protecting USB PD policy engine and port power switches from latch-up or gate oxide rupture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ170CA | Same VWM/VBR/VC ratings but lower PPPM (400 W), SMA package (smaller thermal mass) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 compliance | Select when board space is constrained and surge threat level is ≤2 kV |
| 1.5KE170CA | Higher PPPM (1500 W), axial-leaded DO-201 package, slower thermal response | Requires through-hole mounting; incompatible with automated SMT lines and dense PCB layouts | Choose only for legacy through-hole designs where 1.5 kW surge margin is mandatory |
Compared with SMAJ170CA and 1.5KE170CA, P6SMB170CAHM3_B/H delivers optimal balance of 600 W surge handling, SMB surface-mount compatibility, AEC-Q101 qualification, and halogen-free compliance - making it the preferred choice for new automotive and industrial SMT designs requiring validated reliability and regulatory alignment.
Availability
P6SMB170CAHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus hardening, telecom power input conditioning, and consumer USB-C port surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB170CAHM3_B/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and automotive-grade qualification.
The P6SMB Series is designed specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 validation, high pulse power, and bidirectional symmetry are essential.
FAQ
What does the "CA" suffix indicate in P6SMB170CAHM3_B/H?
The "CA" suffix denotes a bidirectional configuration, meaning P6SMB170CAHM3_B/H provides symmetrical clamping for both positive and negative voltage transients. Unlike unidirectional variants (e.g., P6SMB170A), it has no cathode marking and functions identically across either polarity - ideal for AC signal lines, differential buses, or floating power rails where polarity reversal may occur.
Is P6SMB170CAHM3_B/H suitable for IEC 61000-4-5 surge testing?
Yes, P6SMB170CAHM3_B/H is rated for 600 W peak pulse power with a 10/1000 μs waveform, meeting IEC 61000-4-5 Level 4 (4 kV line-to-earth) when mounted per recommended 0.2" × 0.2" copper pad layout. Its 234 V clamping voltage at 2.6 A ensures protected circuitry remains within safe operating limits during standardized surge events.
How does the HM3 suffix affect compliance and reliability of P6SMB170CAHM3_B/H?
The HM3 suffix indicates P6SMB170CAHM3_B/H is halogen-free, RoHS-compliant, and AEC-Q101 qualified. This certification validates its performance under automotive temperature cycling, humidity storage, and mechanical shock tests - confirming suitability for under-hood ECUs, ADAS cameras, and other mission-critical automotive systems requiring extended reliability and environmental safety.
What is the maximum operating temperature for P6SMB170CAHM3_B/H?
P6SMB170CAHM3_B/H has a maximum junction temperature (TJ max) of +150 °C and an operating junction/storage range of –65 °C to +150 °C. This wide thermal envelope supports deployment in high-temperature automotive under-hood locations, industrial motor drives, and telecom base station power supplies without derating below full 600 W pulse capability at ambient temperatures up to 25 °C.
Can P6SMB170CAHM3_B/H replace P6SMB170A in an existing design?
No - P6SMB170CAHM3_B/H is bidirectional while P6SMB170A is unidirectional. Substituting them requires verifying circuit polarity: P6SMB170A uses a cathode band for orientation and conducts only in reverse bias, whereas P6SMB170CAHM3_B/H clamps equally in both directions with no polarity marking. Layout and schematic changes are necessary to ensure correct functionality.
P6SMB170CAHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 145V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 234V
- Current - Peak Pulse (10/1000µs):
- 2.6A
- 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)
P6SMB170CAHM3_B/H FAQ
1.How can I place an order for P6SMB170CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB170CAHM3_B/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 P6SMB170CAHM3_B/H reliable?
The price and inventory of P6SMB170CAHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB170CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB170CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB170CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB170CAHM3_B/H?
P6SMB170CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB170CAHM3_B/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 P6SMB170CAHM3_B/H?
For technical support, including P6SMB170CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB170CAHM3_B/H requirements.
6.How does Aetrix verify that P6SMB170CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB170CAHM3_B/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 P6SMB170CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB170CAHM3_B/H?
All P6SMB170CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB170CAHM3_B/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 P6SMB170CAHM3_B/H part is unused and in its original packaging.
Return procedure for P6SMB170CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB170CAHM3_B/H Tags
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