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Vishay General Semiconductor - Diodes Division P6SMB170CAHE3_A/H
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- Part No.:
- P6SMB170CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB170CAHE3_A/H.pdf
- Description:
- TVS DIODE 145VWM 234VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,016
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Product details
Overview
P6SMB170CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 170 V standoff voltage (VWM), 189 V minimum breakdown voltage (VBR), 234 V maximum clamping voltage (VC) at 2.6 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) capability with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the P6SMB170CAHE3_A/H datasheet, P6SMB170CAHE3_A/H pinout, P6SMB170CAHE3_A/H application, or P6SMB170CAHE3_A/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, 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 reverse/forward conduction behavior 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.
Rated for -65 °C to +150 °C operating junction temperature, it delivers stable clamping performance across automotive and industrial ambient conditions. The SMB package supports automated placement and meets UL 94 V-0 flammability rating with matte tin-plated leads solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 170 V - maximum continuous reverse voltage before clamping initiates; defines safe operating margin below breakdown |
| VBR (Breakdown Voltage) | 162–179 V at 1 mA - precise voltage threshold where avalanche conduction begins under controlled test conditions |
| VC (Clamping Voltage) | 234 V at 2.6 A IPPM - peak voltage seen by protected circuit during worst-case 10/1000 μs transient event |
| PPPM (Peak Pulse Power) | 600 W - transient energy absorption capacity with 10/1000 μs waveform at 0.01% duty cycle |
| RθJA | 100 °C/W - thermal resistance from junction to ambient air on standard 0.2" × 0.2" copper pads; dictates derating above 25 °C |
| TJ max. | +150 °C - maximum allowable junction temperature; sets upper limit for thermal design margin in enclosed environments |
| AEC-Q101 Qualified | Yes - qualified for automotive-grade reliability per stress test requirements including HTRB, HTGB, and temperature cycling |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); cathode band absent per bidirectional design convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (reverse bias) | One terminal of symmetrical avalanche junction; conducts during positive or negative overvoltage events |
| Cathode | Transient current entry point (forward bias) | Second terminal of symmetrical junction; identical electrical role to Anode in bidirectional operation |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 600 W peak pulse power | Supports robust suppression of IEC 61000-4-5 Level 4 surges (4 kV line-to-line) in industrial power inputs |
| AEC-Q101 qualification | Validates reliability for automotive body electronics, infotainment power rails, and ADAS sensor interfaces |
| MSL Level 1 (260 °C peak) | Permits standard lead-free reflow without moisture sensitivity handling or baking requirements |
| Glass passivated junction | Ensures stable leakage current (<1 μA at VWM) and repeatable clamping performance over 10+ year service life |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 24 V DC digital input channels in programmable logic controllers against inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input terminals to clamp transients before they reach optocoupler or microcontroller GPIO. Use Value: Prevents latch-up or permanent damage to isolation components during repetitive 100 V/100 ns switching spikes, extending field reliability beyond 10 years. |
Use Scenario: Safeguarding LIN bus transceiver power supply pins in door module ECUs exposed to load dump and jump-start events. IC Role / Device Role / Timing Role: Primary clamping device on VBAT rail upstream of LDO regulator, absorbing up to 600 W for ≤100 ms. Use Value: Maintains regulated 5 V output during ISO 16750-2 load dump (up to 35 V for 400 ms), avoiding system reset or brownout. |
| Telecom Power Interface | Sensor Signal Line Protection |
Use Scenario: Shielding 48 V PoE-powered Ethernet switch ports from lightning-induced surges entering via RJ45 magnetics. IC Role / Device Role / Timing Role: Secondary-level TVS on secondary side of isolated DC/DC converter, coordinated with primary-side MOVs. Use Value: Limits let-through voltage to <234 V during 10/1000 μs 1 kV surge, preserving PHY IC integrity per IEEE 802.3af immunity requirements. |
Use Scenario: Guarding analog outputs of pressure sensors in HVAC control systems against ESD discharge during field servicing. IC Role / Device Role / Timing Role: Low-capacitance (CJ ≈ 40 pF typical) bidirectional suppressor placed directly at connector interface. Use Value: Clamps ±8 kV contact ESD (IEC 61000-4-2) to <234 V within <1 ns, preventing ADC offset drift or op-amp saturation. |
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 specs but lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 3+ or automotive load dump | Select when board space is constrained and peak surge energy remains below 400 W |
| 1.5KE170CA | Higher PPPM (1500 W), axial-leaded DO-201 package, slower response due to wirebond inductance | Requires through-hole mounting; not compatible with SMT-only production; less effective for fast ESD | Choose only for legacy through-hole designs needing higher energy handling without layout change |
Compared with SMAJ170CA and 1.5KE170CA, P6SMB170CAHE3_A/H uniquely balances 600 W surge capability, SMB SMT compatibility, AEC-Q101 qualification, and bidirectional symmetry - making it optimal for new automotive and industrial designs requiring both reliability and manufacturability.
Availability
P6SMB170CAHE3_A/H is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, telecom power interfaces, and sensor signal line protection requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB170CAHE3_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, MOSFETs, and passive components with emphasis on high-reliability and automotive-grade solutions.
The P6SMB Series targets cost-sensitive yet robust transient protection needs in automotive, industrial, and telecom infrastructure - delivering standardized 600 W clamping performance across 6.8 V to 540 V standoff voltages in compact SMB packaging.
FAQ
What does the "CA" suffix indicate in P6SMB170CAHE3_A/H?
The "CA" suffix denotes a bidirectional configuration, meaning P6SMB170CAHE3_A/H provides symmetrical clamping for both positive- and negative-polarity transients without polarity marking. This differs from unidirectional variants (e.g., P6SMB170A) that require correct anode/cathode orientation and only clamp in reverse bias. The CA version is ideal for AC signal lines, floating buses, and differential interfaces where voltage polarity reversal occurs.
Is P6SMB170CAHE3_A/H qualified for automotive applications?
Yes, P6SMB170CAHE3_A/H is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's P6SMB datasheet revision 09-Jan-2024. This qualification covers stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling - validating suitability for under-hood and cabin electronics such as body control modules, lighting drivers, and sensor interfaces.
What is the maximum clamping voltage of P6SMB170CAHE3_A/H under standard test conditions?
The maximum clamping voltage (VC) of P6SMB170CAHE3_A/H is 234 V, measured at a peak pulse current (IPPM) of 2.6 A using the industry-standard 10/1000 μs double-exponential waveform. This value ensures protected downstream components experience no more than 234 V during transient events, providing a defined safety margin relative to the 170 V standoff voltage and 179 V maximum breakdown voltage.
How does the SMB package of P6SMB170CAHE3_A/H compare to SMA or SMC in terms of thermal performance?
P6SMB170CAHE3_A/H in SMB (DO-214AA) package has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W on 0.2" × 0.2" copper pads - better than SMA (140 °C/W) but higher than SMC (60 °C/W). This means SMB offers a balance of compact size (4.57 mm × 3.94 mm) and sufficient heat dissipation for 600 W pulses at moderate duty cycles, while avoiding the larger footprint of SMC required for high-power industrial designs.
Does P6SMB170CAHE3_A/H require special PCB layout considerations?
Yes - to achieve rated 600 W pulse power, P6SMB170CAHE3_A/H must be mounted on minimum recommended pad layout: 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in Figure 2 of the datasheet. Smaller pads increase thermal resistance and reduce surge capability. Also, keep traces short and wide between P6SMB170CAHE3_A/H and protected node to minimize inductance, ensuring sub-nanosecond response is preserved during ESD events.
P6SMB170CAHE3_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):
- 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_A/H FAQ
1.How can I place an order for P6SMB170CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB170CAHE3_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 P6SMB170CAHE3_A/H reliable?
The price and inventory of P6SMB170CAHE3_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 P6SMB170CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB170CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB170CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB170CAHE3_A/H?
P6SMB170CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB170CAHE3_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 P6SMB170CAHE3_A/H?
For technical support, including P6SMB170CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB170CAHE3_A/H requirements.
6.How does Aetrix verify that P6SMB170CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB170CAHE3_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 P6SMB170CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB170CAHE3_A/H?
All P6SMB170CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB170CAHE3_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 P6SMB170CAHE3_A/H part is unused and in its original packaging.
Return procedure for P6SMB170CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB170CAHE3_A/H Tags
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