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Vishay General Semiconductor - Diodes Division P6SMB170AHE3_B/H
- Part No.:
- P6SMB170AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB170AHE3_B/H.pdf
- Description:
- 600W,170V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,080
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Product details
Overview
P6SMB170AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 170 V standoff voltage (VWM), 179 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 P6SMB170AHE3_B/H datasheet, P6SMB170AHE3_B/H pinout, P6SMB170AHE3_B/H application, or P6SMB170AHE3_B/H equivalent, key selection criteria include unidirectional clamping behavior, 150 °C max junction temperature, MSL Level 1 moisture sensitivity, and compliance with JESD201 Class 2 whisker resistance - critical for high-reliability automotive and industrial PCB designs.
Technical Context
The P6SMB170AHE3_B/H operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology for stable breakdown and low incremental surge resistance. Its clamping voltage of 234 V at IPPM ensures robust overvoltage protection during fast transients induced by inductive switching or ESD events.
Designed for surface-mount assembly on 0.2" × 0.2" copper pads per terminal, it delivers 600 W peak pulse power with 10/1000 μs waveform and 0.01 % duty cycle, while maintaining thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 145 V - Maximum continuous reverse operating voltage before conduction begins; defines safe working range in normal operation. |
| VBR (Breakdown Voltage) | 162–179 V at 1 mA - Confirmed avalanche onset range; ensures predictable triggering under transient stress. |
| VC (Clamping Voltage) | 234 V at 2.6 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress margin. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy absorption capability without failure; validated per Fig. 1 curve. |
| TJ max | 150 °C - Maximum allowable junction temperature; enables operation in under-hood automotive environments. |
| MSL Level | Level 1 (J-STD-020) - No floor life limitation; supports standard reflow without baking prior to assembly. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to ground or low-side reference in unidirectional TVS configuration. | Provides return path during clamping; must be routed with low-inductance trace to minimize overshoot. |
| Cathode | Current exit point in forward bias; connected to protected line (e.g., power rail or signal line). | Defines polarity-sensitive placement; band marking aligns with cathode end for correct orientation on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against severe load-dump and ISO 7637-2 Pulse 5a transients in 12 V automotive systems. |
| Glass passivated chip junction | Ensures long-term stability of VBR and leakage performance across temperature and lifetime stress conditions. |
| AEC-Q101 qualification (HE3_B suffix) | Confirms suitability for automotive powertrain, body control, and ADAS modules requiring zero-defect reliability. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns rise time), improving protection fidelity. |
| MSL Level 1, LF peak 260 °C | Supports lead-free reflow without preconditioning; eliminates production delays and moisture-related defects. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients up to 35 V and ISO 7637-2 Pulse 5a surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp overvoltage before reaching downstream regulators and microcontrollers. Use Value: Limits rail voltage to ≤234 V during 600 W surges, preserving LDOs and CAN transceivers rated for 36 V absolute maximum. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted at connector interface to shunt fast transients before entering op-amp input stages. Use Value: Maintains signal integrity with <1 nF junction capacitance (typ.) and sub-1 ns response, preventing ADC offset shifts or latch-up. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
|
Use Scenario: Safeguarding PoE-powered equipment inputs against lightning-induced surges on 48 V DC lines. IC Role / Device Role / Timing Role: Primary clamping device upstream of DC-DC converter, sized to absorb repetitive 10/1000 μs transients per IEC 61000-4-5. Use Value: Withstands 2.6 A IPPM at 234 V clamping, reducing stress on secondary TVS arrays and enabling compact front-end design. |
Use Scenario: Adding robustness to USB-C power delivery circuits against hot-plug transients and user-handling ESD. IC Role / Device Role / Timing Role: Unidirectional suppressor on VBUS line, coordinated with polyfuse and secondary TVS for multi-stage protection. Use Value: Delivers 600 W surge handling without derating at 50 °C ambient, meeting USB-IF ESD immunity requirements (±15 kV air, ±8 kV contact). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ170A-E3/52 | Same VWM/VBR/VC specs but non-AEC-Q101, commercial-grade only; higher ID leakage (5 μA vs. 1 μA). | Limited to industrial/commercial use; not approved for automotive safety-critical modules. | Select when cost sensitivity outweighs automotive qualification requirements and board space allows SMA package. |
| 1.5SMC170AHE3_A | Higher package thermal resistance (RθJA = 125 °C/W vs. 100 °C/W); same electrical specs and AEC-Q101 grade. | Requires larger copper pour or forced airflow for equivalent power dissipation in high-ambient environments. | Choose if existing layout uses SMC footprint and thermal margin permits 25 °C/W higher RθJA. |
Compared with SMAJ170A-E3/52 and 1.5SMC170AHE3_A, the P6SMB170AHE3_B/H offers superior thermal performance in a smaller SMB footprint and full AEC-Q101 validation - making it optimal for space-constrained, high-reliability automotive power rails where junction temperature control and qualification traceability are mandatory.
Availability
P6SMB170AHE3_B/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom power inputs, and consumer USB-C PD systems requiring stable component supply with guaranteed AEC-Q101 compliance and full traceability.
Supply support for P6SMB170AHE3_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, rectifiers, MOSFETs, and passive components with emphasis on reliability, efficiency, and automotive-grade qualification.
The P6SMB Series targets high-energy transient suppression in automotive, industrial, and telecom applications, delivering standardized 600 W surge capability in compact SMB packages with AEC-Q101 and RoHS compliance built-in.
FAQ
What is the clamping voltage of the P6SMB170AHE3_B/H at its rated peak pulse current?
The P6SMB170AHE3_B/H has a maximum clamping voltage (VC) of 234 V at 2.6 A peak pulse current (IPPM), measured under the standard 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Electrical Characteristics table on page 2 of the Vishay document 88370. The P6SMB170AHE3_B/H maintains this clamping performance across its qualified operating temperature range.
Is the P6SMB170AHE3_B/H suitable for automotive applications?
Yes, the P6SMB170AHE3_B/H is explicitly AEC-Q101 qualified, as indicated by the "HE3_B" suffix per Vishay's ordering information (page 3). It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 Rev G. The P6SMB170AHE3_B/H is approved for use in automotive powertrain, body electronics, and ADAS subsystems where transient immunity and long-term reliability are required.
What does the "_B/H" suffix mean in P6SMB170AHE3_B/H?
The "_B" denotes AEC-Q101 qualification for the P6SMB170AHE3_B/H series (applicable to P6SMB6.8A through P6SMB220A), while "/H" specifies 7-inch plastic tape-and-reel packaging with 750 units per reel. This suffix structure is defined in the Ordering Information table on page 3 of Vishay document 88370. The P6SMB170AHE3_B/H thus combines automotive qualification with standard SMT handling compatibility.
How does the P6SMB170AHE3_B/H compare to bidirectional TVS diodes like P6SMB170CA?
The P6SMB170AHE3_B/H is unidirectional and features a cathode band for polarity-sensitive placement, whereas P6SMB170CA is bidirectional with no polarity marking. Electrically, the P6SMB170AHE3_B/H has VWM = 145 V and VBR = 162–179 V, while P6SMB170CA has lower VWM = 136 V and VBR = 152–168 V. The P6SMB170AHE3_B/H is preferred for DC rail protection where polarity is fixed; P6SMB170CA suits AC or differential signal lines.
What is the maximum junction temperature rating for the P6SMB170AHE3_B/H?
The P6SMB170AHE3_B/H has a maximum junction temperature (TJ max) of +150 °C, as specified in the Maximum Ratings table (page 1) of Vishay document 88370. This rating enables reliable operation in under-hood automotive environments and high-ambient industrial enclosures. Derating curves in Figure 2 confirm usable power dissipation down to TJ = 150 °C, and the P6SMB170AHE3_B/H maintains full electrical specifications within this thermal envelope.
P6SMB170AHE3_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:
- 1
- Bidirectional Channels:
- -
- 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)
P6SMB170AHE3_B/H FAQ
1.How can I place an order for P6SMB170AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB170AHE3_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 P6SMB170AHE3_B/H reliable?
The price and inventory of P6SMB170AHE3_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 P6SMB170AHE3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB170AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB170AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB170AHE3_B/H?
P6SMB170AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB170AHE3_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 P6SMB170AHE3_B/H?
For technical support, including P6SMB170AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB170AHE3_B/H requirements.
6.How does Aetrix verify that P6SMB170AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB170AHE3_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 P6SMB170AHE3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB170AHE3_B/H?
All P6SMB170AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB170AHE3_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 P6SMB170AHE3_B/H part is unused and in its original packaging.
Return procedure for P6SMB170AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB170AHE3_B/H Tags
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