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Vishay General Semiconductor - Diodes Division 1.5SMC160A-E3/9AT
- Part No.:
- 1.5SMC160A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC160A-E3/9AT.pdf
- Description:
- TVS DIODE 136VWM 219VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:8,559
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Product details
Overview
1.5SMC160A-E3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 160 V standoff voltage (VWM), 179 V minimum breakdown voltage (VBR), 219 V maximum clamping voltage at 6.8 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and operates across -65 °C to +150 °C junction temperature range - deployed in automotive power supply rails and industrial sensor interfaces.
For engineers reviewing the 1.5SMC160A-E3/9AT datasheet, 1.5SMC160A-E3/9AT pinout, 1.5SMC160A-E3/9AT application, or 1.5SMC160A-E3/9AT equivalent, key selection considerations include clamping performance under 10/1000 µs transients, unidirectional polarity marking, SMC (DO-214AB) package thermal resistance (RθJA = 75 °C/W), and AEC-Q101 qualification status of related variants.
Technical Context
This TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD, lightning-induced surges, and inductive switching transients. Its unidirectional configuration provides forward conduction capability with 3.5 V forward voltage at 100 A, supporting bidirectional transient handling only when paired with complementary devices.
The device is rated for 1500 W peak pulse power under standardized 10/1000 µs waveform conditions, derated linearly above 25 °C ambient per Fig. 2, and supports repetitive surge duty cycles up to 0.01 %. Mounting on 8.0 mm × 8.0 mm copper pads is required to meet published IPPM and thermal specifications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 136 V - Maximum continuous reverse operating voltage before significant leakage; defines safe working margin below clamping threshold. |
| VBR (Breakdown, min) | 152 V at 1 mA - Guaranteed minimum voltage at which avalanche conduction initiates; ensures predictable turn-on behavior. |
| VC (Clamping, max) | 219 V at 6.8 A - Maximum voltage seen by protected circuit during full-rated 10/1000 µs transient; determines downstream component stress. |
| PPPM | 1500 W - Peak transient energy absorption capacity under standard waveform; enables protection against severe lightning or load dump events. |
| IPPM | 6.8 A - Corresponding peak pulse current at VC; used with PCB trace impedance to estimate let-through energy. |
| TJ max | +150 °C - Maximum allowable junction temperature; constrains thermal design and sustained surge repetition rate. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on standard pad layout; informs heatsinking requirements for repeated surges. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Cathode indicated by band; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to lower-potential side of protected line; enables forward conduction during negative transients when used in complementary pairs. |
| Cathode | Current exit point in forward bias; marked with band | Connected to higher-potential side (e.g., VCC rail); defines directionality - clamps only when cathode voltage exceeds anode by ≥VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity without external series impedance in many 12–48 V systems. |
| Glass-passivated junction | Ensures stable VBR tolerance (±5 %) and long-term reliability under thermal cycling and humidity exposure. |
| MSL Level 1 (260 °C peak) | Enables compatibility with standard lead-free reflow profiles without preconditioning or special handling. |
| AEC-Q101 qualified variants available | HE3/HM3 suffix versions meet automotive-grade stress testing for under-hood and powertrain applications. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns response), reducing risk of latch-up in protected ICs. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V CAN transceiver power inputs against load dump transients (ISO 16750-2 Pulse 5a). IC Role / Device Role: Unidirectional TVS placed between VBAT and ground, clamping surges exceeding 136 V. Use Value: Limits peak voltage to ≤219 V during 1500 W transients, preventing damage to 36 V-rated DC-DC converters and CAN PHYs. |
Use Scenario: Safeguarding 4–20 mA current loop analog inputs from field wiring ESD and inductive kickback. IC Role / Device Role: Unidirectional TVS connected across input terminals, referenced to system ground. Use Value: Clamps fast transients within nanoseconds while maintaining <1 µA leakage at 136 V, preserving loop accuracy. |
| Telecom AC/DC Adapter Input | Consumer Appliance Motor Drive Stage |
Use Scenario: Secondary-side overvoltage protection in isolated 12 V wall adapters subjected to lightning-induced surges. IC Role / Device Role: Unidirectional TVS installed across output capacitor, cathode to +VOUT. Use Value: Absorbs 10/1000 µs transients up to 1500 W without degradation, meeting UL 497B protector classification. |
Use Scenario: Suppressing flyback voltage spikes from brushed DC motors in smart home appliances. IC Role / Device Role: Unidirectional TVS mounted across motor terminals, cathode to positive supply rail. Use Value: Clamps inductive spikes to ≤219 V, preventing MOSFET drain-source breakdown and ensuring EN 61000-4-4 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160A-E3/52T | Same VWM/VC, but SMB package (DO-214AA); lower PPPM = 600 W; RθJA = 85 °C/W. | Lower surge capacity suits cost-sensitive consumer electronics with moderate threat levels. | Select when board space is constrained and peak surge energy is ≤600 W. |
| 1.5KE160A-T | Through-hole DO-201AE package; identical electrical specs but higher RθJA (60 °C/W on infinite heatsink only); no MSL rating. | Preferred for prototyping or legacy through-hole designs where reflow compatibility is not required. | Choose for manual assembly or high-reliability industrial controls needing proven long-term stability. |
Compared with 1.5SMC160A-E3/9AT, SMBJ160A-E3/52T offers smaller footprint but reduced surge margin, while 1.5KE160A-T provides identical clamping with easier hand-soldering - neither is pin-compatible due to differing packages (SMC vs SMB vs DO-201AE), requiring layout changes.
Availability
1.5SMC160A-E3/9AT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, telecom adapter safety compliance, and consumer appliance motor drive staging requiring stable component supply and RoHS-compliant commercial-grade TVS diodes.
Supply support for 1.5SMC160A-E3/9AT 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 1.5SMC Series targets high-energy transient suppression in space-constrained surface-mount applications, balancing surge robustness, thermal performance, and manufacturability for automotive, industrial, and communications infrastructure.
FAQ
What is the clamping voltage of the 1.5SMC160A-E3/9AT under full-rated surge conditions?
The 1.5SMC160A-E3/9AT exhibits a maximum clamping voltage (VC) of 219 V when subjected to its rated 6.8 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is guaranteed across temperature and represents the highest voltage the protected circuit will experience during worst-case transient events - critical for ensuring downstream components remain within their absolute maximum ratings. The 1.5SMC160A-E3/9AT achieves this with low incremental resistance and fast avalanche response.
Is the 1.5SMC160A-E3/9AT AEC-Q101 qualified?
No, the 1.5SMC160A-E3/9AT is a commercial-grade RoHS-compliant variant with E3 suffix. AEC-Q101 qualification applies only to versions with HE3 or HM3 suffixes (e.g., 1.5SMC160AHE3_A/I), which undergo additional stress testing for automotive use. The 1.5SMC160A-E3/9AT meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow requirements but lacks the extended temperature cycling, HTRB, and ESD validation required for AEC-Q101. For automotive designs, specify the HE3 variant.
What does the "/9AT" suffix indicate in 1.5SMC160A-E3/9AT?
The "/9AT" suffix denotes packaging: 13-inch diameter plastic tape and reel, with 3500 units per reel. This contrasts with "/57T", which indicates 7-inch tape and reel (850 units). Both formats use the same E3 RoHS-compliant termination and SMC (DO-214AB) package. The 1.5SMC160A-E3/9AT is optimized for high-volume SMT assembly lines requiring extended reel life and reduced changeover frequency - confirmed in Vishay's Ordering Information table on page 3 of document 88303.
How does the 1.5SMC160A-E3/9AT compare to bidirectional TVS diodes like 1.5SMC160CA?
The 1.5SMC160A-E3/9AT is unidirectional and clamps only reverse-polarity transients relative to its cathode-anode orientation, while 1.5SMC160CA is bidirectional and suppresses surges of either polarity symmetrically. The 1.5SMC160A-E3/9AT supports forward conduction (VF = 3.5 V at 100 A), making it suitable for DC power rail protection where polarity is fixed; the CA version is preferred for AC lines or differential signal pairs. Their VWM, VBR, and VC values differ accordingly - 1.5SMC160A-E3/9AT has VWM = 136 V, whereas 1.5SMC160CA has VWM = 136 V per direction.
What is the thermal resistance and mounting requirement for optimal performance of the 1.5SMC160A-E3/9AT?
The 1.5SMC160A-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This pad layout is mandatory to achieve rated IPPM and PPPM performance - smaller pads increase thermal impedance and reduce surge capability. The device also features RθJL = 15 °C/W (junction-to-leads), enabling efficient heat transfer into PCB copper. For repeated surges, thermal management must ensure TJ remains ≤150 °C.
1.5SMC160A-E3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 136V
- Voltage - Breakdown (Min):
- 152V
- Voltage - Clamping (Max) @ Ipp:
- 219V
- Current - Peak Pulse (10/1000µs):
- 6.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC160A-E3/9AT FAQ
1.How can I place an order for 1.5SMC160A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC160A-E3/9AT 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 1.5SMC160A-E3/9AT reliable?
The price and inventory of 1.5SMC160A-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC160A-E3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC160A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC160A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC160A-E3/9AT?
1.5SMC160A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC160A-E3/9AT 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 1.5SMC160A-E3/9AT?
For technical support, including 1.5SMC160A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC160A-E3/9AT requirements.
6.How does Aetrix verify that 1.5SMC160A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC160A-E3/9AT 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 1.5SMC160A-E3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC160A-E3/9AT?
All 1.5SMC160A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC160A-E3/9AT, 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 1.5SMC160A-E3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC160A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC160A-E3/9AT Tags
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