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Vishay General Semiconductor - Diodes Division SM6T150AHE3_A/H
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- Part No.:
- SM6T150AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T150AHE3_A/H.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,255
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Product details
Overview
SM6T150AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount TRANSZORB® transient voltage suppressor in SMB (DO-214AA) package, with 128 V standoff voltage (VWM), 143–158 V breakdown voltage (VBR), and 207 V clamping voltage (VC) at 2.9 A peak pulse current. It delivers 600 W peak pulse power (10/1000 μs), supports 100 A non-repetitive forward surge, and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the SM6T150AHE3_A/H datasheet, SM6T150AHE3_A/H pinout, SM6T150AHE3_A/H application, or SM6T150AHE3_A/H equivalent, key selection criteria include clamping performance under 10/1000 μs transients, thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification status, unidirectional polarity marking, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
The SM6T150AHE3_A/H operates as a unidirectional TVS diode optimized for fast clamping of high-energy transients induced by inductive load switching or ESD events. Its glass-passivated junction ensures stable breakdown characteristics, while low-inductance SMB packaging enables effective suppression of sub-microsecond surges without signal distortion.
Designed for operation across -65 °C to +150 °C junction temperature range, it features 1.0 mA test current (IT) for VBR verification and maintains ≤1.0 μA reverse leakage at VWM, supporting reliable hold-off in low-power sensor and control circuits where standby current integrity is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 128 V - Maximum continuous reverse operating voltage before conduction begins; defines safe working margin below clamping threshold. |
| VBR (min/max) | 143 V / 158 V at 1.0 mA - Confirmed breakdown range ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 207 V at 2.9 A (10/1000 μs) - Clamping voltage limits downstream IC stress during standardized surge testing. |
| PPPM | 600 W - Peak pulse power handling capacity per JEDEC standard waveform; determines survivability against lightning or inductive spikes. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance measured on 0.2" × 0.2" copper pads; guides PCB thermal layout for sustained reliability. |
| TJ max. | +150 °C - Maximum junction temperature rating; enables use in under-hood automotive environments with minimal derating. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and halogen-free (HE3 suffix), MSL Level 1, 260 °C reflow compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VAK exceeds VBR. |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes clamping loop during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surge waveforms in automotive ECUs. |
| Glass passivated chip junction | Ensures long-term parameter stability and reduced parameter drift over temperature and lifetime vs. epoxy-passivated alternatives. |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), preserving signal integrity on high-speed lines. |
| AEC-Q101 qualification (HE3 suffix) | Confirms compliance with automotive stress tests including HTGB, H3TRB, and mechanical shock-required for Tier-1 supply chain acceptance. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow assembly without popcorn cracking or delamination risk. |
Applications
| Automotive Powertrain Control | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting CAN transceiver power rails and microcontroller I/O pins from load dump and alternator ripple in engine control units. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between 12 V supply rail and ground to limit transient excursions to <207 V. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic interfaces during 12 V system load dump events up to 35 V sustained and 60 V spikes. | Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in PLC modules exposed to relay coil flyback. IC Role / Device Role / Timing Role: Standoff-mode protector on 24 V sensor supply line, conducting only during >128 V transients. Use Value: Maintains <1.0 μA leakage at 24 V nominal, avoiding measurement offset errors while clamping 1 kV/500 A surges to <207 V. |
| Telecom Line Card Surge Suppression | Consumer Appliance Motor Drive Protection |
Use Scenario: Secondary-level protection on AC/DC converter outputs feeding Ethernet PHY power supplies in base station line cards. IC Role / Device Role / Timing Role: Fast-response shunt device absorbing residual surges after primary MOV/GDT stages. Use Value: Clamps 10/1000 μs surges to 207 V within <1 ns, preventing secondary breakdown in LDO regulators downstream. | Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Unidirectional clamp across motor terminals referenced to chassis ground. Use Value: Withstands 100 A 10 ms half-sine surge (IFSM) without degradation, enabling repeated motor start-stop cycles. |
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/VBR/VC specs but lower PPPM (400 W), higher RθJA (140 °C/W), no AEC-Q101 qualification. | Not suitable for automotive under-hood use; limited to commercial-grade industrial or consumer applications with lower surge exposure. | Select SMAJ150A-E3/52 only if AEC-Q101 is not required and thermal budget allows higher junction temperature rise. |
| 1.5SMC150A | Same electrical ratings but in larger SMC (DO-214AB) package; 10% higher VC (228 V), 20% higher RθJA (120 °C/W). | Requires larger PCB footprint; less suitable for dense automotive modules but offers higher mechanical robustness for high-vibration environments. | Choose 1.5SMC150A when board space permits and enhanced mechanical durability outweighs compact SMB advantages. |
Compared with SMAJ150A-E3/52 and 1.5SMC150A, SM6T150AHE3_A/H uniquely combines AEC-Q101 qualification, SMB footprint efficiency, and 600 W pulse capability-making it the preferred choice for space-constrained, thermally demanding automotive and industrial designs requiring validated reliability.
Availability
SM6T150AHE3_A/H is available at Aetrix Electronics and suitable for automotive powertrain control, industrial sensor interface protection, telecom line card surge suppression, and consumer appliance motor drive protection requiring stable component supply and full traceability.
Supply support for SM6T150AHE3_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, rectifiers, MOSFETs, and TVS devices with emphasis on reliability, power handling, and automotive qualification.
The SM6T Series is designed specifically for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom systems where consistent clamping performance and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of SM6T150AHE3_A/H at its rated peak pulse current?
The SM6T150AHE3_A/H has a maximum clamping voltage (VC) of 207 V at 2.9 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88385 and defines the upper voltage limit imposed on protected circuitry during surge events. The SM6T150AHE3_A/H maintains this clamping performance across its specified operating temperature range.
Is SM6T150AHE3_A/H qualified for automotive applications?
Yes, SM6T150AHE3_A/H is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's SM6T series datasheet (Rev. 09-Jan-2024, Doc. #88385). This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD robustness-making SM6T150AHE3_A/H suitable for under-hood and body-control module applications.
What package type does SM6T150AHE3_A/H use, and what are its mounting requirements?
SM6T150AHE3_A/H uses the SMB (DO-214AA) surface-mount package with matte tin-plated leads. Per Vishay specifications, it requires minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for thermal and mechanical reliability. The SM6T150AHE3_A/H is MSL Level 1 and compatible with standard lead-free reflow profiles peaking at 260 °C.
How does the breakdown voltage tolerance of SM6T150AHE3_A/H compare to its standoff voltage?
The SM6T150AHE3_A/H has a standoff voltage (VWM) of 128 V and a breakdown voltage range of 143 V to 158 V at 1.0 mA test current. This 11–23% overvoltage margin ensures reliable non-conduction during normal operation while guaranteeing turn-on before damaging overvoltages occur. The SM6T150AHE3_A/H datasheet specifies these values in Table 1 under "ELECTRICAL CHARACTERISTICS".
Can SM6T150AHE3_A/H be used in bidirectional configurations?
No, SM6T150AHE3_A/H is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional operation, Vishay specifies the "CA" suffix (e.g., SM6T150CA). Using SM6T150AHE3_A/H in reverse-biased configurations risks permanent failure due to lack of symmetrical breakdown capability.
SM6T150AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SM6T150AHE3_A/H FAQ
1.How can I place an order for SM6T150AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T150AHE3_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 SM6T150AHE3_A/H reliable?
The price and inventory of SM6T150AHE3_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 SM6T150AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SM6T150AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T150AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T150AHE3_A/H?
SM6T150AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T150AHE3_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 SM6T150AHE3_A/H?
For technical support, including SM6T150AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T150AHE3_A/H requirements.
6.How does Aetrix verify that SM6T150AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SM6T150AHE3_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 SM6T150AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SM6T150AHE3_A/H?
All SM6T150AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T150AHE3_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 SM6T150AHE3_A/H part is unused and in its original packaging.
Return procedure for SM6T150AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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