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Vishay General Semiconductor - Diodes Division P6SMB480AHE3_A/H
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- Part No.:
- P6SMB480AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB480AHE3_A/H.pdf
- Description:
- TVS DIODE 408VWM 658VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB480AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 480 V standoff voltage (VWM), 504 V minimum breakdown voltage (VBR), and 600 W peak pulse power (10/1000 μs). It provides robust overvoltage protection for high-voltage DC rails in industrial power supplies and telecom rectifier modules.
For engineers reviewing the P6SMB480AHE3_A/H datasheet, P6SMB480AHE3_A/H pinout, P6SMB480AHE3_A/H application, or P6SMB480AHE3_A/H equivalent, key selection criteria include clamping voltage (658 V at IPPM), low leakage (<1.0 μA at VWM), AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and RoHS-compliant matte tin terminations.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-banded polarity, designed to shunt transient energy away from sensitive downstream circuitry during voltage surges induced by inductive switching or lightning events. Its glass-passivated junction ensures stable avalanche characteristics and long-term reliability under repetitive surge stress.
The device complies with J-STD-020 MSL Level 1 (peak reflow ≤260 °C), supports automated SMT placement, and delivers fast response time (<1.0 ns) with low incremental surge resistance. It is rated for continuous operation up to TJ = +150 °C and derates linearly above TA = 25 °C per Figure 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 408 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 480 V systems. |
| VBR (Breakdown Voltage) | 456–504 V at IT = 1.0 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 658 V at IPPM - Peak voltage seen by protected circuit during 600 W surge; critical for MOSFET/IC voltage rating margin. |
| IPPM (Peak Pulse Current) | 0.91 A (10/1000 μs) - Surge current handling capacity; determines survivability against defined transient waveforms. |
| ID (Reverse Leakage) | <1.0 μA at VWM - Negligible standby power loss and minimal impact on high-impedance sensing circuits. |
| TJ max. | +150 °C - Enables use in high-temperature environments such as enclosed power converters or outdoor telecom cabinets. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; informs heatsinking requirements when operating near PD = 5.0 W limit. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Cathode indicated by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to system ground or low-side reference; enables unidirectional clamping from rail to GND. |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to protected line (e.g., +480 V DC bus); defines clamping direction and polarity-sensitive placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance-supports industrial and transportation applications requiring extended lifetime. |
| 600 W peak pulse power (10/1000 μs) | Robust surge immunity suitable for IEC 61000-4-5 Level 4 compliance when properly laid out with recommended 0.2" × 0.2" copper pads. |
| Glass passivated junction | Stable, repeatable avalanche behavior across temperature and lifetime; eliminates parameter drift due to moisture or contamination. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning; eliminates manufacturing yield risk in high-volume SMT lines. |
| RoHS-compliant & halogen-free option available | Meets global environmental regulations (EU RoHS, JEDEC J-STD-020); HE3 suffix denotes RoHS-compliant AEC-Q101 version. |
Applications
| Industrial Power Supply Protection | Telecom Rectifier Module Clamping |
|---|---|
|
Use Scenario: Protecting output stages of 480 VDC industrial SMPS against load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between HV output rail and chassis ground to clamp transients below MOSFET drain-source breakdown rating. Use Value: Limits peak voltage to 658 V during 600 W surges, preserving 700 V-rated SiC MOSFETs and reducing need for oversized voltage margins. |
Use Scenario: Safeguarding DC distribution buses in telecom base station rectifiers exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on +480 V DC feed line upstream of DC-DC converters and monitoring ICs. Use Value: Sub-1 μA leakage avoids loading precision voltage references; 150 °C max junction temperature supports operation in sealed outdoor enclosures. |
| Renewable Energy Inverter DC Link | Rail Signaling Interface Protection |
|
Use Scenario: Transient suppression on DC link capacitors in solar string inverters operating at nominal 400–600 VDC. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing grid-switching transients and capacitor discharge spikes. Use Value: 408 V VWM allows safe operation at 480 V nominal with headroom for ripple and tolerance; 100 °C/W RθJA enables thermal design without added heatsinks. |
Use Scenario: Protecting isolated analog sensor inputs referenced to high-voltage rails in smart grid metering systems. IC Role / Device Role / Timing Role: High-VWM TVS placed between signal return and HV rail to prevent coupling of transients into instrumentation amplifiers. Use Value: Low capacitance (typ. <50 pF at 1 MHz) avoids signal integrity degradation; unidirectional polarity prevents forward conduction during normal bias conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ480A-E3/52 | Same VWM/VBR/VC specs but commercial-grade (non-AEC-Q101); RθJA = 100 °C/W identical; no HE3 suffix. | Lacks automotive qualification; suitable for non-automotive industrial use where AEC-Q101 is not mandated. | Select SMBJ480A-E3/52 if AEC-Q101 is unnecessary and cost optimization is prioritized. |
| 1.5SMC480A | Higher package thermal resistance (RθJA ≈ 125 °C/W); same electrical specs but larger SMC (DO-214AB) footprint. | Requires PCB layout change; better surge handling margin due to higher thermal mass but incompatible pinout. | Choose 1.5SMC480A only if existing design uses SMC package and higher thermal inertia is needed. |
Compared with SMBJ480A-E3/52 and 1.5SMC480A, P6SMB480AHE3_A/H uniquely combines AEC-Q101 qualification, SMB footprint compatibility, and verified 600 W surge capability-making it optimal for space-constrained, high-reliability 480 V systems where qualification and manufacturability are mandatory.
Availability
P6SMB480AHE3_A/H is available at Aetrix Electronics and suitable for industrial power supplies, telecom rectifier modules, renewable energy inverters, and smart grid metering systems requiring stable component supply with automotive-grade reliability.
Supply support for P6SMB480AHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB Series targets high-energy transient suppression in compact SMT formats, engineered for automotive, industrial, and telecom applications demanding AEC-Q101 validation, low-profile packaging, and consistent clamping behavior.
FAQ
What is the clamping voltage of P6SMB480AHE3_A/H at its rated peak pulse current?
The clamping voltage (VC) of P6SMB480AHE3_A/H is 658 V measured at its specified peak pulse current (IPPM) of 0.91 A under a 10/1000 μs waveform. This value represents the maximum voltage imposed on the protected circuit during a full-power transient event and is critical for ensuring downstream components remain within their absolute maximum ratings. The P6SMB480AHE3_A/H maintains this clamping performance across its qualified temperature range and after multiple surge events.
Is P6SMB480AHE3_A/H qualified to AEC-Q101, and what does that mean for my design?
Yes, P6SMB480AHE3_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 validates performance across temperature cycling, highly accelerated life testing (HALT), and surge endurance-ensuring suitability for automotive under-hood and industrial applications requiring extended reliability. For your design, this means reduced qualification overhead and higher confidence in field longevity compared to commercial-grade alternatives like SMBJ480A-E3/52.
What is the standoff voltage (VWM) of P6SMB480AHE3_A/H, and how does it relate to system operating voltage?
The standoff voltage (VWM) of P6SMB480AHE3_A/H is 408 V, representing the maximum continuous reverse voltage the device can block without entering avalanche conduction. This value is selected to provide ≥15 % margin above typical 480 VDC nominal systems, accommodating ripple, tolerance, and transient overshoot while preventing false triggering. Engineers must ensure system steady-state voltage remains below 408 V to avoid leakage-driven power loss or thermal runaway.
Does P6SMB480AHE3_A/H have a defined polarity, and how is it marked?
Yes, P6SMB480AHE3_A/H is a unidirectional TVS diode with clearly defined polarity: the cathode is marked by a visible band on the SMB (DO-214AA) package body. During correct installation, the banded end connects to the protected line (e.g., +480 V rail), and the anode connects to ground or low-side reference. Reversing polarity renders the device ineffective for overvoltage protection and may cause catastrophic failure under surge conditions. Always verify orientation using the band marking before assembly.
What is the thermal resistance and maximum junction temperature of P6SMB480AHE3_A/H?
P6SMB480AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and a maximum operating junction temperature (TJ max.) of +150 °C. These parameters define its thermal envelope: at 5.0 W steady-state dissipation (its PD rating), junction temperature rises 500 °C above ambient-so practical operation requires limiting continuous power or adding copper thermal relief. The 150 °C limit supports deployment in sealed enclosures or high-ambient environments common in industrial and telecom infrastructure where P6SMB480AHE3_A/H is routinely applied.
P6SMB480AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 408V
- Voltage - Breakdown (Min):
- 456V
- Voltage - Clamping (Max) @ Ipp:
- 658V
- Current - Peak Pulse (10/1000µs):
- 910mA
- 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)
P6SMB480AHE3_A/H FAQ
1.How can I place an order for P6SMB480AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB480AHE3_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 P6SMB480AHE3_A/H reliable?
The price and inventory of P6SMB480AHE3_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 P6SMB480AHE3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB480AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB480AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB480AHE3_A/H?
P6SMB480AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB480AHE3_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 P6SMB480AHE3_A/H?
For technical support, including P6SMB480AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB480AHE3_A/H requirements.
6.How does Aetrix verify that P6SMB480AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB480AHE3_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 P6SMB480AHE3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB480AHE3_A/H?
All P6SMB480AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB480AHE3_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 P6SMB480AHE3_A/H part is unused and in its original packaging.
Return procedure for P6SMB480AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB480AHE3_A/H Tags
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