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Vishay General Semiconductor - Diodes Division P6SMB170CAHE3/5B
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- Part No.:
- P6SMB170CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB170CAHE3/5B.pdf
- Description:
- TVS DIODE 145VWM 234VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,231
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Product details
Overview
P6SMB170CAHE3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, rated for 170 V standoff voltage (VWM), 234 V clamping voltage (VC) at 2.6 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform. It protects sensitive ICs, MOSFETs, and sensor signal lines against inductive switching transients and lightning-induced surges in industrial and automotive electronics.
For engineers reviewing the P6SMB170CAHE3/5B datasheet, P6SMB170CAHE3/5B pinout, P6SMB170CAHE3/5B application, or P6SMB170CAHE3/5B equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 150 °C maximum junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on standard PCB copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown behavior and long-term reliability under repetitive surge stress.
Designed for transient suppression per IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT), it delivers sub-nanosecond response time and clamps voltage within 234 V at 2.6 A, limiting energy delivered to downstream circuitry. Thermal resistance is 100 °C/W junction-to-ambient (RθJA) on standard 0.2" × 0.2" copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 145 V - Maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown. |
| VBR (Breakdown) | 162–179 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on during overvoltage events. |
| VC (Clamping) | 234 V at IPPM = 2.6 A - Peak voltage seen by protected circuit during 10/1000 μs surge; critical for IC survivability. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; determines surge energy absorption capacity. |
| TJ max. | 150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with J-STD-020 MSL level 1 reflow. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional device with no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal per datasheet fig. 6.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | One terminal of symmetrical PN junction; connects to protected line or ground reference depending on layout. |
| Cathode | Transient return path (bidirectional) | Second terminal of symmetrical PN junction; functionally identical to Anode in bidirectional configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses, or ungrounded lines without polarity constraints. |
| 600 W peak pulse power | Handles high-energy transients such as ISO 7637-2 Pulse 1/2a/5a in automotive systems without degradation. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on downstream components compared to higher-ratio suppressors. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; simplifies manufacturing logistics. |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Analog Input Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive kickback in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector entry point before signal conditioning circuitry. Use Value: Limits transient voltage to ≤234 V, preventing latch-up or gate oxide damage in 5 V/12 V interface ICs while maintaining signal integrity. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers against field wiring surges and ESD. IC Role / Device Role / Timing Role: Primary front-end transient suppressor mounted adjacent to terminal block or connector. Use Value: Absorbs up to 600 W surge energy without failure, preserving ADC accuracy and isolator integrity across 150 °C ambient operation. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Shielding Ethernet PHYs, PoE injectors, and DSL line drivers from lightning-induced surges on outdoor-facing ports. IC Role / Device Role / Timing Role: Secondary-level TVS in cascade with gas discharge tubes (GDTs) for coordinated surge staging. Use Value: Fast sub-ns response complements slower primary protectors, clamping residual let-through voltage to safe levels for silicon-based receivers. |
Use Scenario: Suppressing commutation spikes from brushed DC motors and solenoids in washing machines, HVAC actuators, and power tools. IC Role / Device Role / Timing Role: Snubber-style TVS across motor terminals or MOSFET drain-source nodes. Use Value: Dissipates 600 W peak energy without thermal runaway, extending MOSFET lifetime and reducing EMI emissions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170CA | Same VWM (145 V), VC = 234 V, but rated for 600 W with tighter VBR tolerance (162–171 V); RoHS-compliant E3 suffix only, no AEC-Q101 option. | Lacks automotive qualification; suitable for commercial/industrial use where AEC-Q101 is not mandated. | Select SMBJ170CA when cost sensitivity outweighs automotive qualification requirements and tighter VBR spread is beneficial. |
| 1.5KE170CA | Through-hole DO-15 package; same 170 V VWM and 234 V VC, but higher RθJA (70 °C/W) and lower mounting density; lead-free M suffix available. | Requires through-hole assembly; less suitable for high-density SMT boards or automated production lines. | Choose 1.5KE170CA only if legacy through-hole design or higher single-pulse energy margin (1500 W) is prioritized over board space and manufacturability. |
Compared with SMBJ170CA and 1.5KE170CA, P6SMB170CAHE3/5B uniquely combines AEC-Q101 qualification, SMB surface-mount form factor, and verified 600 W surge capability-making it the preferred choice for new automotive and high-reliability industrial designs requiring zero layout change for qualification compliance.
Availability
P6SMB170CAHE3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC analog inputs, telecom line card surge protection, and consumer appliance motor drive circuits requiring stable component supply and full traceability.
Supply support for P6SMB170CAHE3/5B 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The P6SMB Series was developed for robust, high-power transient suppression in space-constrained SMT applications across automotive, industrial, and communications infrastructure-prioritizing low clamping ratio, fast response, and AEC-Q101 compliance.
FAQ
What does the "CA" suffix indicate in P6SMB170CAHE3/5B?
The "CA" suffix denotes a bidirectional configuration: the device clamps voltage symmetrically in both polarities, making it suitable for protecting AC signals, differential buses, or ungrounded lines without requiring polarity-aware layout. This differs from unidirectional variants (e.g., P6SMB170A) that require correct cathode orientation. P6SMB170CAHE3/5B maintains identical electrical specs in both directions, including VWM = 145 V and VC = 234 V.
Is P6SMB170CAHE3/5B suitable for automotive applications?
Yes, P6SMB170CAHE3/5B is AEC-Q101 qualified (confirmed by HE3 suffix and documentation revision 09-Jan-2024, Doc. #88370). It has passed stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD per JESD22-A114. Its 150 °C TJ max. and MSL Level 1 rating support under-hood deployment in ECUs, body control modules, and ADAS sensor units where P6SMB170CAHE3/5B serves as primary transient clamp.
What is the clamping voltage of P6SMB170CAHE3/5B and why does it matter?
P6SMB170CAHE3/5B has a maximum clamping voltage (VC) of 234 V at 2.6 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value represents the highest voltage imposed on protected circuitry during a surge event. Keeping VC well below the absolute maximum ratings of downstream ICs (e.g., <30 V tolerant microcontrollers or <35 V rated transceivers) prevents damage-so P6SMB170CAHE3/5B is selected specifically for 12–24 V systems where 234 V clamping provides sufficient margin.
How does the SMB (DO-214AA) package of P6SMB170CAHE3/5B compare to larger packages like DO-15?
The SMB (DO-214AA) package of P6SMB170CAHE3/5B measures 4.06 mm × 5.59 mm and supports automated SMT placement, whereas DO-15 (e.g., in 1.5KE170CA) is through-hole and occupies ~3× more board area. Though both deliver 600 W peak power, P6SMB170CAHE3/5B achieves this in a low-profile, moisture-insensitive (MSL Level 1) format ideal for high-density layouts-unlike DO-15, which requires wave soldering and has higher thermal resistance (70 °C/W vs. 100 °C/W for SMB on standard pads).
What does the "HE3/5B" ordering code signify for P6SMB170CAHE3/5B?
"HE3" indicates RoHS-compliant construction with AEC-Q101 qualification; "5B" specifies packaging in 13-inch plastic tape-and-reel format containing 3200 units per reel. This configuration enables high-volume SMT assembly with full traceability and automotive-grade compliance. The "HE3" suffix distinguishes it from commercial-grade "E3" variants and confirms qualification per AEC-Q101 Rev D, while "5B" ensures compatibility with standard pick-and-place feeders used in Tier 1 electronics manufacturing.
P6SMB170CAHE3/5B 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB170CAHE3/5B FAQ
1.How can I place an order for P6SMB170CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB170CAHE3/5B 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 P6SMB170CAHE3/5B reliable?
The price and inventory of P6SMB170CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB170CAHE3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB170CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB170CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB170CAHE3/5B?
P6SMB170CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB170CAHE3/5B 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 P6SMB170CAHE3/5B?
For technical support, including P6SMB170CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB170CAHE3/5B requirements.
6.How does Aetrix verify that P6SMB170CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB170CAHE3/5B 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 P6SMB170CAHE3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB170CAHE3/5B?
All P6SMB170CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB170CAHE3/5B, 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 P6SMB170CAHE3/5B part is unused and in its original packaging.
Return procedure for P6SMB170CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB170CAHE3/5B Tags
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