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Vishay General Semiconductor - Diodes Division P6SMB300AHM3_C/I
- Part No.:
- P6SMB300AHM3_C/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB300AHM3_C/I.pdf
- Description:
- TVS DIODE 256VWM 414VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,014
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Product details
Overview
P6SMB300AHM3_C/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 300 V standoff voltage (VWM), 414 V clamping voltage (VC) at 1.45 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform. It protects MOSFETs, ICs, and sensor signal lines in industrial power supplies and telecom infrastructure against inductive switching transients.
For engineers reviewing the P6SMB300AHM3_C/I datasheet, P6SMB300AHM3_C/I pinout, P6SMB300AHM3_C/I application, or P6SMB300AHM3_C/I equivalent, key selection criteria include clamping voltage margin relative to protected circuit's absolute maximum rating, thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification status, and halogen-free RoHS compliance per HM3 suffix.
Technical Context
This TVS operates as a unidirectional avalanche clamp: reverse-biased during normal operation with <1.0 μA leakage at 256 V (VWM), then rapidly avalanches when transient voltage exceeds 285–315 V breakdown range (VBR at 1 mA). Its glass-passivated junction ensures stable breakdown and low incremental surge resistance.
Designed for automated SMT placement on 0.2" × 0.2" copper pads, it delivers 600 W surge handling with 10/1000 μs waveform at 0.01% duty cycle and meets J-STD-020 MSL Level 1 (peak reflow 260 °C). The cathode band denotes polarity; no marking on bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 256 V - Maximum continuous reverse voltage before clamping begins; sets upper limit for normal operating bias. |
| VBR (Breakdown) | 285–315 V at 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on above system rail. |
| VC (Clamping) | 414 V at IPPM = 1.45 A - Peak voltage seen by protected circuit during worst-case transient; defines protection margin. |
| PPPM | 600 W - Surge energy absorption capability with 10/1000 μs waveform; validates robustness vs. IEC 61000-4-5 Level 4. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard pad layout; determines derating above 25 °C ambient. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in high-temperature industrial enclosures. |
| Package | SMB (DO-214AA) - Low-profile SMT outline (4.57 × 3.94 × 2.20 mm); compatible with standard pick-and-place and reflow profiles. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, cathode indicated by band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / low-side reference | Connected to ground or lower-potential node; carries surge current to reference plane during clamping. |
| Cathode | Reverse-biased input / protected line connection | Connected to signal/power line under protection; avalanche conduction occurs when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability (vibration, temperature cycling, HTRB); supports industrial transport and EV charging systems. |
| Halogen-free & RoHS-compliant | HM3 suffix confirms halogen-free molding compound and lead-free terminations meeting JEDEC J-STD-020 and JESD 201 Class 2. |
| 600 W peak pulse power | Withstands 10/1000 μs surges up to 1.45 A without degradation-sufficient for IEC 61000-4-5 open-circuit test levels. |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage stress on downstream components; improves margin versus 3.3 V, 5 V, or 24 V logic rails. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; reduces manufacturing overhead in high-volume SMT lines. |
Applications
| Industrial Power Supply Protection | Telecom DC Feeder Line Protection |
|---|---|
Use Scenario: Suppresses inductive kickback from relay coils and transformer leakage in 48 V DC power distribution units. IC Role / Device Role / Timing Role: Unidirectional TVS placed across output rails to clamp transients before reaching DC-DC controllers and load switches. Use Value: Limits voltage excursions to ≤414 V, preventing latch-up or gate oxide rupture in 600 V MOSFETs and PMICs. |
Use Scenario: Guards -48 V telecom central office feeder lines against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Primary-level surge protector mounted at board edge, upstream of inline DC-DC converters and line drivers. Use Value: Absorbs 600 W pulses while maintaining <1.0 μA leakage at 256 V, ensuring minimal standby power loss and long-term reliability. |
| Automotive Onboard Charger Interface | Industrial Sensor Signal Conditioning |
Use Scenario: Shields CAN/LIN interface circuitry and microcontroller I/O pins in EV onboard chargers exposed to battery disconnect transients. IC Role / Device Role / Timing Role: Secondary-level TVS on low-voltage auxiliary rails (e.g., 12 V, 5 V) feeding communication ICs and gate drivers. Use Value: AEC-Q101 qualification and 150 °C TJ max ensure operation in under-hood thermal environments without derating. |
Use Scenario: Protects analog front-end inputs (e.g., 4–20 mA loops, RTD bridges) in PLC analog I/O modules from ESD and field wiring faults. IC Role / Device Role / Timing Role: Input-stage clamp on sensor signal lines, placed before instrumentation amplifiers and ADC drivers. Use Value: 414 V clamping voltage provides >200 V margin above 200 V isolation test requirements, enabling reinforced insulation compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ300A-E3/52 | Same VWM (256 V), VC (414 V), and PPPM (600 W); SMA package (smaller footprint, higher RθJA = 140 °C/W). | Limited thermal performance on dense PCBs; unsuitable for sustained surge duty cycles or high-ambient environments. | Select when board space is constrained and thermal budget allows higher junction rise. |
| P6SMB300AHE3_B/I | Identical electrical specs and SMB package; HE3 suffix indicates RoHS-compliant AEC-Q101 grade but not halogen-free. | Acceptable where halogen-free requirement is waived (e.g., non-automotive industrial); same mounting and layout. | Choose for cost-sensitive AEC-Q101 designs without halogen restrictions. |
Compared with P6SMB300AHM3_C/I, SMAJ300A-E3/52 trades thermal robustness for smaller size, while P6SMB300AHE3_B/I matches form-fit-function but lacks halogen-free certification-critical for automotive OEM compliance.
Availability
P6SMB300AHM3_C/I is available at Aetrix Electronics and suitable for industrial power supplies, telecom DC feeders, automotive onboard chargers, and sensor signal conditioning requiring stable component supply, AEC-Q101 validation, and halogen-free compliance.
Supply support for P6SMB300AHM3_C/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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The P6SMB Series targets high-energy transient suppression in space-constrained SMT applications, balancing surge robustness, thermal efficiency, and automotive-grade qualification for harsh-environment electronics.
FAQ
What is the clamping voltage of the P6SMB300AHM3_C/I at its rated peak pulse current?
The P6SMB300AHM3_C/I has a maximum clamping voltage (VC) of 414 V at its specified peak pulse current (IPPM) of 1.45 A, measured with a 10/1000 μs waveform. This value defines the highest voltage imposed on the protected circuit during a standardized surge event and is critical for verifying margin against downstream component absolute maximum ratings. The P6SMB300AHM3_C/I maintains this clamping performance across its qualified operating temperature range.
Is the P6SMB300AHM3_C/I suitable for automotive applications?
Yes, the P6SMB300AHM3_C/I is AEC-Q101 qualified, as confirmed by the HM3 suffix and Vishay documentation. It undergoes stress testing for temperature cycling, high-temperature reverse bias, and mechanical shock per automotive reliability standards. The P6SMB300AHM3_C/I is intended for use in automotive subsystems such as onboard chargers, body control modules, and ADAS power interfaces where transient immunity and long-term stability are required.
What does the "HM3" suffix indicate in P6SMB300AHM3_C/I?
The "HM3" suffix in P6SMB300AHM3_C/I denotes halogen-free, RoHS-compliant construction with matte tin-plated leads, meeting JESD 201 Class 2 whisker resistance and J-STD-020 MSL Level 1 reflow compatibility. It also signifies AEC-Q101 qualification. The "C/I" portion specifies packaging: 13-inch tape-and-reel (I) with 3200 units per reel, and "C" indicates commercial temperature grade (−65 °C to +150 °C).
How does the thermal resistance of the P6SMB300AHM3_C/I affect its surge handling capability?
The P6SMB300AHM3_C/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads. This value directly impacts safe operating area during repetitive surges: at ambient temperatures above 25 °C, peak pulse power must be derated per Vishay Figure 2. For single-event protection, RθJA governs post-surge cooldown time-critical in systems with burst-mode transients. The P6SMB300AHM3_C/I's low RθJA enables reliable 600 W pulse handling without external heatsinking.
Can the P6SMB300AHM3_C/I be used in bidirectional configurations?
No, the P6SMB300AHM3_C/I is a unidirectional TVS diode, as indicated by the "A" suffix (not "CA") and absence of bidirectional VBR/VWM ranges in its datasheet specifications. Its cathode band marks polarity, and it conducts only in reverse avalanche mode. For bidirectional protection at ~300 V, a different part such as P6SMB300CA would be required-but that variant is not offered in the HM3 automotive/halogen-free version per Vishay's ordering table.
P6SMB300AHM3_C/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 256V
- Voltage - Breakdown (Min):
- 285V
- Voltage - Clamping (Max) @ Ipp:
- 414V
- Current - Peak Pulse (10/1000µs):
- 1.45A
- 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 (SMB)
P6SMB300AHM3_C/I FAQ
1.How can I place an order for P6SMB300AHM3_C/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB300AHM3_C/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 P6SMB300AHM3_C/I reliable?
The price and inventory of P6SMB300AHM3_C/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB300AHM3_C/I is usually 5 days.
3.What payment methods are accepted for P6SMB300AHM3_C/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB300AHM3_C/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB300AHM3_C/I?
P6SMB300AHM3_C/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB300AHM3_C/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 P6SMB300AHM3_C/I?
For technical support, including P6SMB300AHM3_C/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB300AHM3_C/I requirements.
6.How does Aetrix verify that P6SMB300AHM3_C/I is sourced from the original manufacturer or authorized distributors?
All P6SMB300AHM3_C/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 P6SMB300AHM3_C/I meets industry standards.
7.What is the process for return or replacement of P6SMB300AHM3_C/I?
All P6SMB300AHM3_C/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB300AHM3_C/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 P6SMB300AHM3_C/I part is unused and in its original packaging.
Return procedure for P6SMB300AHM3_C/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB300AHM3_C/I Tags
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