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Vishay General Semiconductor - Diodes Division P6SMB540AHM3_A/I
- Part No.:
- P6SMB540AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB540AHM3_A/I.pdf
- Description:
- TVS DIODE 459VWM 740VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,481
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Product details
Overview
P6SMB540AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for high-energy surge protection with 600 W peak pulse power (10/1000 μs), 459 V stand-off voltage (VWM), and 740 V maximum clamping voltage (VC) at 0.81 A IPPM. It protects power rails and signal lines in industrial motor drives, telecom power supplies, and automotive ECUs against inductive switching transients and lightning-induced surges.
For engineers reviewing the P6SMB540AHM3_A/I datasheet, P6SMB540AHM3_A/I pinout, P6SMB540AHM3_A/I application, or P6SMB540AHM3_A/I equivalent, key selection criteria include its AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, SMB (DO-214AA) package with cathode band marking, and verified clamping performance under repetitive 0.01% duty cycle surges.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 513–567 V breakdown range (VBR at 1 mA). Its low incremental surge resistance ensures stable clamping during fast transients, while glass-passivated junction enhances reliability under thermal cycling.
Designed for surface-mount automated assembly, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and JESD201 Class 2 whisker resistance. The device sustains 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and operates across -65 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 459 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC rail margin. |
| VBR (Breakdown) | 513–567 V at 1 mA - Verified avalanche initiation range; ensures predictable turn-on under transient overvoltage. |
| VC (Clamping) | 740 V at 0.81 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM | 600 W - Peak pulse power handling capability with 10/1000 μs waveform; enables robust protection against IEC 61000-4-5 surges. |
| Package | SMB (DO-214AA) - Low-profile SMD outline (5.59 mm × 4.06 mm × 2.20 mm); compatible with standard pick-and-place and reflow processes. |
| Temperature Range | -65 °C to +150 °C - Full operational junction range supports under-hood automotive and industrial ambient conditions. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability per stress test requirements including HTGB, HTRB, and TCT. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity marked with cathode band on one end. Cathode terminal connects to protected circuit's ground or return path; anode connects to line being protected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Clamp output / Surge sink node | Connected to system ground or low-impedance return; carries full surge current during clamping event. |
| Anode (unmarked end) | Protected line input | Connected in parallel to IC power rail or signal line; voltage rise above VWM triggers avalanche conduction to cathode. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection against severe transients per IEC 61000-4-5 Level 4 (4 kV line-to-line). |
| Halogen-free, RoHS-compliant (HM3 suffix) | Meets automotive and industrial environmental compliance mandates without compromising thermal or electrical performance. |
| AEC-Q101 qualified (HM3_D variant) | Validated for automotive powertrain and body electronics applications requiring extended lifetime and stress resilience. |
| Low profile SMB package | Reduces PCB footprint vs. larger DO-214AB packages while maintaining thermal dissipation via 20 °C/W RθJL. |
| Fast response time & low clamping ratio | Sub-nanosecond avalanche turn-on limits overvoltage exposure; VC/VBR ≈ 1.35 ensures minimal overshoot. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protection of DC bus inputs against back-EMF spikes from contactor switching and regenerative braking. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +BUS and GND to clamp positive transients exceeding 459 V. Use Value: Prevents MOSFET gate oxide failure and controller latch-up by limiting transient voltage to ≤740 V at 0.81 A. |
Use Scenario: Input-stage surge suppression on AC/DC front-end rectifiers exposed to lightning-induced surges on primary side. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across bulk capacitor input to absorb 600 W pulses without degradation. Use Value: Maintains system uptime by surviving repeated 10/1000 μs surges with no parameter shift after 1000 cycles. |
| Automotive Body Control Modules | Industrial PLC I/O Modules |
|
Use Scenario: Protection of LIN bus power pins and microcontroller supply rails in BCMs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: AEC-Q101-qualified unidirectional suppressor mounted directly at connector entry point. Use Value: Guarantees functional safety compliance by clamping ISO 7637-2 Pulse 5a (75 V/350 ms) within spec-defined limits. |
Use Scenario: Field-side analog input protection against ESD and cable discharge events in modular I/O systems. IC Role / Device Role / Timing Role: Parallel-connected TVS on 24 V sensor supply line to shunt transients before reaching precision ADC front-end. Use Value: Preserves measurement accuracy by limiting transient-induced offset drift to <0.5 LSB under 8 kV contact ESD (IEC 61000-4-2). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ540A-E3/5B | Same VWM (459 V), lower PPPM (400 W), SMA package (smaller thermal mass, higher RθJA = 150 °C/W). | Not AEC-Q101 qualified; suitable for commercial-grade cost-sensitive designs with lower surge severity. | Select when budget constraints outweigh automotive qualification needs and surge energy remains ≤400 W. |
| 1.5KE540A | Through-hole DO-201 package, same VWM/VC specs, higher IFSM (200 A), but no AEC-Q101 or halogen-free rating. | Requires manual or wave soldering; unsuitable for automated SMT lines or automotive production environments. | Choose only for legacy through-hole designs where board real estate and reflow compatibility are not constraints. |
Compared with SMAJ540A-E3/5B and 1.5KE540A, P6SMB540AHM3_A/I uniquely combines AEC-Q101 qualification, halogen-free construction, and SMB-packaged 600 W surge capacity-making it the only drop-in solution for new automotive and high-reliability industrial SMT designs requiring full compliance and proven field endurance.
Availability
P6SMB540AHM3_A/I is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and industrial PLC I/O modules requiring stable component supply with guaranteed long-term sourcing.
Supply support for P6SMB540AHM3_A/I 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 application-specific optimization.
The P6SMB Series was developed for high-power, surface-mount transient suppression in space-constrained, high-reliability applications-including automotive, industrial, and telecom infrastructure-where consistent clamping, AEC-Q101 validation, and halogen-free compliance are mandatory.
FAQ
What is the maximum clamping voltage of P6SMB540AHM3_A/I under rated surge conditions?
The P6SMB540AHM3_A/I exhibits a maximum clamping voltage (VC) of 740 V when subjected to its rated peak pulse current (IPPM) of 0.81 A using the standard 10/1000 μs waveform. This value is measured per Vishay's test conditions in the datasheet and defines the upper voltage limit imposed on protected circuitry during transient events. Engineers must verify that downstream components tolerate this clamping level under worst-case surge scenarios.
Is P6SMB540AHM3_A/I qualified for automotive applications?
Yes, P6SMB540AHM3_A/I is AEC-Q101 qualified, as confirmed by its HM3_D suffix designation in Vishay's ordering information and qualification documentation. This certification covers stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT), validating its suitability for automotive powertrain, chassis, and body electronics where reliability under harsh thermal and electrical conditions is critical.
What does the "HM3" suffix indicate in P6SMB540AHM3_A/I?
The "HM3" suffix in P6SMB540AHM3_A/I denotes halogen-free, RoHS-compliant construction with matte tin-plated leads meeting J-STD-002 and JESD22-B102 solderability standards. It also signifies compliance with JESD201 Class 2 whisker resistance testing-ensuring long-term interconnect integrity in high-vibration or thermally cycled environments such as automotive and industrial deployments.
How does the SMB package of P6SMB540AHM3_A/I compare to DO-214AB in thermal performance?
The SMB (DO-214AA) package of P6SMB540AHM3_A/I has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, which is comparable to DO-214AB but with reduced footprint (5.59 mm × 4.06 mm vs. 6.86 mm × 6.22 mm). Its smaller pad area requires adherence to Vishay's recommended 0.2" × 0.2" copper pads per terminal to maintain specified power derating and avoid thermal runaway during repetitive surges.
Can P6SMB540AHM3_A/I be used in bidirectional configurations?
No, P6SMB540AHM3_A/I is a unidirectional TVS diode, as indicated by its "A" suffix and cathode band marking. Bidirectional operation requires a part with "CA" suffix (e.g., P6SMB540CA). Using P6SMB540AHM3_A/I in reverse-biased configurations risks permanent damage due to forward conduction during negative transients; always match polarity and device type to the protection topology.
P6SMB540AHM3_A/I 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 459V
- Voltage - Breakdown (Min):
- 513V
- Voltage - Clamping (Max) @ Ipp:
- 740V
- Current - Peak Pulse (10/1000µs):
- 810mA
- 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)
P6SMB540AHM3_A/I FAQ
1.How can I place an order for P6SMB540AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB540AHM3_A/I 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 P6SMB540AHM3_A/I reliable?
The price and inventory of P6SMB540AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB540AHM3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB540AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB540AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB540AHM3_A/I?
P6SMB540AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB540AHM3_A/I 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 P6SMB540AHM3_A/I?
For technical support, including P6SMB540AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB540AHM3_A/I requirements.
6.How does Aetrix verify that P6SMB540AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB540AHM3_A/I 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 P6SMB540AHM3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB540AHM3_A/I?
All P6SMB540AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB540AHM3_A/I, 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 P6SMB540AHM3_A/I part is unused and in its original packaging.
Return procedure for P6SMB540AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB540AHM3_A/I Tags
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