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Vishay General Semiconductor - Diodes Division SM6T150AHE3_B/H
- Part No.:
- SM6T150AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T150AHE3_B/H.pdf
- Description:
- 600W,150V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,181
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Product details
Overview
SM6T150AHE3_B/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 150 V standoff voltage (VWM), 207 V clamping voltage at 2.9 A peak pulse current (10/1000 μs), and 600 W peak pulse power. It provides robust ESD and surge protection for automotive-grade sensor signal lines and MOSFET gate drivers.
For engineers reviewing the SM6T150AHE3_B/H datasheet, SM6T150AHE3_B/H pinout, SM6T150AHE3_B/H application, or SM6T150AHE3_B/H equivalent, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and unidirectional polarity with cathode band marking.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (<1 μA leakage at 128 V), then rapidly avalanches to limit transients above its 143–158 V breakdown range (VBR at 1 mA). Its low-inductance SMB package enables fast response to sub-microsecond surges.
Designed for automotive environments, SM6T150AHE3_B/H meets AEC-Q101 stress testing requirements and features matte tin-plated leads compliant with J-STD-002 solderability and JESD 22-B102 whisker resistance (Class 2). Thermal derating begins above TA = 25 °C per Fig. 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 128 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 143 V / 158 V at 1 mA - Ensures reliable avalanche initiation within defined tolerance band |
| VC @ IPPM | 207 V at 2.9 A (10/1000 μs) - Clamping voltage that protects downstream ICs with safe margin over VWM |
| PPPM | 600 W - Peak transient energy handling capability for IEC 61000-4-5 Level 4 compliance |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads |
| TJ max. | +150 °C - Maximum junction temperature enabling operation in under-hood automotive locations |
| Polarity | Unidirectional - Cathode marked by band; blocks forward current until VBR exceeded in reverse |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); Molding compound UL 94 V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased anode connection point | Connected to protected line; conducts during overvoltage to shunt current to ground |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-earth) without degradation |
| AEC-Q101 qualified | Validated for automotive electronics including engine control units and ADAS sensor interfaces |
| Glass passivated chip junction | Enhances long-term reliability and moisture resistance in humid or condensing environments |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a) |
| MSL Level 1 (260 °C reflow) | Enables single-pass lead-free reflow assembly without popcorn or delamination risk |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Gate Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and ground to clamp negative-going spikes and positive surges exceeding 128 V. Use Value: Prevents latch-up or permanent damage to 16-bit ADC inputs and microcontroller GPIOs rated ≤130 V absolute max. | Use Scenario: Safeguarding high-side N-channel MOSFET gates driven by isolated gate drivers in variable-frequency drives. IC Role / Device Role / Timing Role: Clamps Miller-induced voltage spikes during fast dV/dt switching events on gate-source terminals. Use Value: Maintains gate oxide integrity by limiting VGS excursion to ≤207 V, well below typical 250 V breakdown threshold. |
| Telecom Line Interface Protection | Consumer Power Supply Input Stage |
Use Scenario: Shielding RS-485 transceiver inputs against lightning-induced surges on outdoor cabling in base station backhaul links. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; this unidirectional part used with series impedance for asymmetrical line-ground protection. Use Value: Achieves <10 ns response time to 1 kV/μs transients while maintaining <1 μA leakage at 128 V operating voltage. | Use Scenario: Secondary-side transient suppression on 12 V DC output rails of AC/DC adapters powering smart home hubs and IoT gateways. IC Role / Device Role / Timing Role: Shunts inrush and coupling transients from upstream switching noise or hot-plug events into local bulk capacitance. Use Value: Enables compact layout with SMB footprint and eliminates need for discrete RC snubbers in cost-sensitive designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150A-E3/52 | Same VWM (128 V), identical SMB package, but lower PPPM (400 W) and higher VC (243 V at 2.5 A) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 | Select only if system-level surge testing is ≤2 kV and board space requires legacy SMA footprint |
| 1.5SMC150A | Higher package thermal mass (SMC), RθJA = 15 °C/W, same electrical specs but larger footprint (7.11 mm × 6.22 mm) | Better sustained power handling; used where PCB real estate allows larger case | Prefer when ambient temperature exceeds 85 °C or repeated surge duty cycle >1/min is expected |
Compared with SMAJ150A-E3/52 and 1.5SMC150A, SM6T150AHE3_B/H delivers optimal balance of AEC-Q101 qualification, 600 W surge capacity, and compact SMB size-making it the preferred choice for space-constrained automotive and industrial modules requiring certified reliability.
Availability
SM6T150AHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial motor drive gate circuits, telecom line protection, and consumer power supply input stages requiring stable component supply and AEC-Q101 compliance.
Supply support for SM6T150AHE3_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 protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SM6T Series is engineered for high-reliability transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where robustness against ESD, lightning, and inductive switching surges is critical.
FAQ
What is the clamping voltage of SM6T150AHE3_B/H at its rated peak pulse current?
The SM6T150AHE3_B/H has a maximum clamping voltage (VC) of 207 V when subjected to a 10/1000 μs waveform peak pulse current (IPPM) of 2.9 A. This value is measured under standardized test conditions per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events. The SM6T150AHE3_B/H maintains this clamping performance across its qualified operating temperature range.
Is SM6T150AHE3_B/H qualified for automotive applications?
Yes, SM6T150AHE3_B/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3", which denotes RoHS-compliant and automotive-grade qualification. It undergoes stress testing for temperature cycling, humidity, mechanical shock, and high-temperature reverse bias per AEC-Q101 Rev D. This makes SM6T150AHE3_B/H suitable for use in engine control units, body electronics, and ADAS sensor modules.
What does the "_B/H" suffix mean in SM6T150AHE3_B/H?
The "_B/H" suffix in SM6T150AHE3_B/H indicates packaging configuration: "B" denotes tape-and-reel revision level (e.g., revision B of the reel specification), and "H" specifies the preferred package code for 7-inch diameter plastic tape and reel, with a base quantity of 750 units. This matches Vishay's documented ordering information and ensures compatibility with automated SMT placement equipment calibrated for SMB (DO-214AA) reels.
How does the thermal resistance of SM6T150AHE3_B/H affect PCB layout?
The SM6T150AHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain TJ ≤150 °C under worst-case 5.0 W steady-state dissipation, designers must allocate ≥100 mm² of 2-oz copper per pad and avoid thermal isolation. The SM6T150AHE3_B/H datasheet specifies minimum pad dimensions to ensure this RθJA value is achieved.
Can SM6T150AHE3_B/H replace bidirectional TVS diodes in circuit designs?
No, SM6T150AHE3_B/H is strictly unidirectional and cannot substitute for bidirectional TVS diodes such as SM6T150CA without circuit redesign. Its cathode band marks the reverse-bias terminal; applying significant positive voltage to the anode relative to cathode will cause forward conduction. For AC-coupled or symmetrical line protection, a dedicated bidirectional part like SM6T150CA must be used instead of SM6T150AHE3_B/H.
SM6T150AHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 2.9A
- 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)
SM6T150AHE3_B/H FAQ
1.How can I place an order for SM6T150AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T150AHE3_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 SM6T150AHE3_B/H reliable?
The price and inventory of SM6T150AHE3_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 SM6T150AHE3_B/H is usually 5 days.
3.What payment methods are accepted for SM6T150AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T150AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T150AHE3_B/H?
SM6T150AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T150AHE3_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 SM6T150AHE3_B/H?
For technical support, including SM6T150AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T150AHE3_B/H requirements.
6.How does Aetrix verify that SM6T150AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SM6T150AHE3_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 SM6T150AHE3_B/H meets industry standards.
7.What is the process for return or replacement of SM6T150AHE3_B/H?
All SM6T150AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T150AHE3_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 SM6T150AHE3_B/H part is unused and in its original packaging.
Return procedure for SM6T150AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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