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Vishay General Semiconductor - Diodes Division P6SMB170A-E3/5B
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- Part No.:
- P6SMB170A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB170A-E3/5B.pdf
- Description:
- TVS DIODE 145VWM 234VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,157
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Product details
Overview
P6SMB170A-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 170 V standoff voltage (VWM), 194.5 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 capability with 10/1000 μs waveform.
For engineers reviewing the P6SMB170A-E3/5B datasheet, P6SMB170A-E3/5B pinout, P6SMB170A-E3/5B application, or P6SMB170A-E3/5B equivalent, this device serves as a robust overvoltage protection component for power rails and signal lines in industrial motor drives, telecom interface circuits, and automotive ECUs requiring AEC-Q101-compliant surge immunity.
Technical Context
The P6SMB170A-E3/5B operates as a unidirectional avalanche diode with cathode-band polarity marking, optimized for fast transient response (<1 ns) and low incremental surge resistance. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
Rated for 150 °C maximum junction temperature and compliant with J-STD-020 MSL Level 1 (260 °C peak reflow), it supports automated SMT placement on standard PCB copper pads (0.2" × 0.2") and delivers consistent clamping performance across -65 °C to +150 °C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 145 V - Maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 162–179 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| 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. |
| PPPM (Peak Pulse Power) | 600 W - Sustains standardized 10/1000 μs surge without failure; enables protection of 24–48 V industrial bus lines. |
| ID (Reverse Leakage) | 1.0 μA at 145 V - Negligible standby current; avoids power loss or false triggering in high-impedance circuits. |
| TJ max. | 150 °C - Enables operation in under-hood automotive or enclosed industrial enclosures without derating. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; informs heatsinking requirements for sustained surge duty cycles. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant, MSL Level 1 (260 °C peak reflow). Cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; connected to ground or low-side reference in unidirectional TVS configuration. | Provides return path for surge current; must be routed with low-inductance trace to minimize clamping overshoot. |
| Cathode | Protected line connection; marked with black band; reverse-biased during normal operation. | Connected to the line being protected (e.g., 150 V DC rail); conducts only during overvoltage events above VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection of 48 V industrial power supplies against IEC 61000-4-5 Level 3 surges (2 kV/12 Ω). |
| Glass passivated chip junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure per JESD22-A101. |
| Low profile SMB package (DO-214AA) | Reduces board space vs. SMA/SMB alternatives; compatible with standard pick-and-place equipment and reflow profiles. |
| AEC-Q101 qualified variant available | P6SMB170AHE3_B meets automotive-grade qualification for engine control, body electronics, and ADAS sensor interfaces. |
| 100 % surge tested | Each unit validated with 10/1000 μs pulse at rated PPPM; guarantees no latent defects in field-deployed units. |
Applications
| Industrial Motor Drives | Telecom Interface Protection |
|---|---|
|
Use Scenario: Protecting gate drivers and feedback sensing lines in 100–200 V DC bus inverters from switching-induced transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between high-side MOSFET gate and source, clamping Miller-induced spikes. Use Value: Prevents false turn-on and gate oxide damage by limiting transient voltage to ≤234 V while maintaining <1 μA leakage at 145 V nominal bus. |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs from ESD and lightning-induced surges on outdoor data lines. IC Role / Device Role / Timing Role: Primary line-side protection device mounted at connector entry point, shunting surge energy to chassis ground. Use Value: Maintains signal integrity with <0.5 pF junction capacitance (typ.) at 0 V bias, enabling >20 Mbps data rates without distortion. |
| Automotive Body Control Modules | Renewable Energy Inverters |
|
Use Scenario: Safeguarding LIN bus transceivers and LED driver ICs in door modules exposed to load dump and jump-start transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on 12 V supply rail, triggered only above 145 V to avoid interference with normal battery fluctuations. Use Value: Complies with ISO 7637-2 Pulse 5a (load dump) with 150 V clamp margin and AEC-Q101 qualification for under-hood deployment. |
Use Scenario: Protecting DC-link monitoring circuits in solar string inverters subjected to grid-switching transients and nearby lightning strikes. IC Role / Device Role / Timing Role: Secondary overvoltage clamp parallel to primary MOV, providing precise, repeatable clamping at 170 V nominal DC-link. Use Value: Delivers 600 W pulse handling without degradation over 10⁵ surge events, extending system service life beyond 20 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ170A | Same VWM (145 V), identical SMB package, but lower PPPM (400 W) and higher VC (252 V at 2.2 A). | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 or automotive load dump. | Select when cost sensitivity outweighs surge margin, and peak currents remain below 2.2 A. |
| 1.5SMC170A | Higher package thermal mass (SMC/DO-214AB), same electrical specs, RθJA = 60 °C/W vs. 100 °C/W. | Better thermal performance under repetitive surges; requires larger PCB footprint (2.5 mm longer). | Choose for high-duty-cycle environments (e.g., factory automation controllers) where layout space permits. |
Compared with SMAJ170A and 1.5SMC170A, the P6SMB170A-E3/5B offers optimal balance of 600 W surge capacity, compact SMB footprint, and verified AEC-Q101 compatibility-making it preferred for space-constrained industrial and automotive designs demanding full IEC/ISO compliance.
Availability
P6SMB170A-E3/5B is available at Aetrix Electronics and suitable for industrial motor drives, telecom interface protection, automotive body control modules, and renewable energy inverters requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB170A-E3/5B 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 high-reliability diodes, MOSFETs, and passive components for industrial, automotive, and computing markets.
The P6SMB Series targets cost-sensitive, high-volume transient protection applications where robustness, automated assembly compatibility, and AEC-Q101 qualification are essential-especially in power conversion and communication infrastructure.
FAQ
What is the maximum clamping voltage of the P6SMB170A-E3/5B under a 10/1000 μs surge?
The P6SMB170A-E3/5B has a maximum clamping voltage (VC) of 234 V at 2.6 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88370 and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB170A-E3/5B maintains this clamping performance across its full operating temperature range (-65 °C to +150 °C).
Is the P6SMB170A-E3/5B RoHS-compliant and lead-free?
Yes, the P6SMB170A-E3/5B is RoHS-compliant and lead-free, as indicated by the "E3" suffix per Vishay's ordering nomenclature. It uses matte tin-plated leads and conforms to J-STD-002 and JESD 22-B102 solderability standards. The device also meets JESD 201 Class 2 whisker resistance requirements and is rated MSL Level 1 for moisture sensitivity.
Can the P6SMB170A-E3/5B be used in bidirectional configurations?
No, the P6SMB170A-E3/5B is a unidirectional TVS diode, as confirmed by its part number suffix "A" (not "CA") and cathode-band marking. Bidirectional variants use the "CA" suffix (e.g., P6SMB170CA). Using the P6SMB170A-E3/5B in bidirectional applications would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit.
What is the thermal resistance junction-to-ambient (RθJA) for the P6SMB170A-E3/5B?
The P6SMB170A-E3/5B has a typical thermal resistance of 100 °C/W from junction to ambient air when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes still air conditions and informs thermal design for applications with repetitive surge duty cycles. Derating curves in Figure 2 of document 88370 provide temperature-dependent power limits.
Does the P6SMB170A-E3/5B meet automotive qualification standards?
The base P6SMB170A-E3/5B is commercial-grade; however, the AEC-Q101 qualified version is designated P6SMB170AHE3_B (with "HE3" and revision "B"). That variant undergoes full automotive stress testing including temperature cycling, HTRB, and surge endurance. The P6SMB170A-E3/5B itself is not AEC-Q101 certified, but shares identical electrical and mechanical specs with the qualified variant except for qualification documentation and traceability.
P6SMB170A-E3/5B 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:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB170A-E3/5B FAQ
1.How can I place an order for P6SMB170A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB170A-E3/5B 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 P6SMB170A-E3/5B reliable?
The price and inventory of P6SMB170A-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB170A-E3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB170A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB170A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB170A-E3/5B?
P6SMB170A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB170A-E3/5B 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 P6SMB170A-E3/5B?
For technical support, including P6SMB170A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB170A-E3/5B requirements.
6.How does Aetrix verify that P6SMB170A-E3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB170A-E3/5B 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 P6SMB170A-E3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB170A-E3/5B?
All P6SMB170A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB170A-E3/5B, 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 P6SMB170A-E3/5B part is unused and in its original packaging.
Return procedure for P6SMB170A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB170A-E3/5B Tags
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