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Vishay General Semiconductor - Diodes Division 1.5SMC160AHM3/I
- Part No.:
- 1.5SMC160AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC160AHM3/I.pdf
- Description:
- TVS DIODE 136VWM 219VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,568
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Product details
Overview
1.5SMC160AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection. It features 160 V standoff voltage (VWM), 171 V minimum breakdown voltage (VBR), 219 V maximum clamping voltage (VC) at 6.8 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect automotive sensor signal lines, industrial I/O ports, and DC power rails against lightning-induced transients and inductive switching spikes.
For engineers reviewing the 1.5SMC160AHM3/I datasheet, 1.5SMC160AHM3/I pinout, 1.5SMC160AHM3/I application, or 1.5SMC160AHM3/I equivalent, key selection criteria include clamping performance under 10/1000 μs surge, thermal resistance (RθJA = 75 °C/W), AEC-Q101 qualification status, unidirectional polarity marking, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
The 1.5SMC160AHM3/I operates as a unidirectional avalanche diode with glass-passivated junction, delivering fast response time (<1 ns) and low incremental surge resistance to limit transient overvoltage before damage occurs. Its clamping behavior is defined by VBR = 152–168 V at IT = 1.0 mA and VC = 219 V at IPPM = 6.8 A, ensuring predictable voltage limiting during repetitive 0.01% duty cycle surges.
Thermally, it supports operation from –65 °C to +150 °C junction temperature, with RθJL = 15 °C/W enabling effective heat transfer to PCB copper. The device meets J-STD-020 MSL Level 1 and is halogen-free, RoHS-compliant, and AEC-Q101 qualified - confirming suitability for automotive-grade production environments where reliability under thermal cycling and humidity exposure is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 136 V - Maximum continuous reverse voltage before leakage exceeds 1.0 μA; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 152–168 V at 1.0 mA - Avalanche onset range; ensures consistent turn-on across production lots and temperature. |
| VC (Clamping) | 219 V at IPPM = 6.8 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM | 1500 W - Peak pulse power handling with 10/1000 μs waveform; enables robust protection against lightning and EFT events. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial ambient conditions. |
| RθJA | 75 °C/W - Thermal resistance junction-to-ambient on standard 8.0 mm × 8.0 mm pads; informs derating above 25 °C ambient. |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTGB, TCT, and H3TRB. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, polarity indicated by cathode band. Dimensions: 7.75 mm × 6.22 mm × 2.62 mm (L × W × H), compatible with standard SMT reflow profiles up to 260 °C peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to lower-potential side of protected line; enables unidirectional conduction during surge. |
| Cathode | Current exit terminal in forward bias; marked with band | Connected to higher-potential side (e.g., VCC rail); defines directionality and clamping reference point. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Withstands 10/1000 μs transients without degradation - sufficient for ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 Level 4 surges. |
| Glass-passivated junction | Ensures stable VBR over lifetime and improved moisture resistance vs. epoxy-passivated alternatives. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control modules, ADAS sensors, and body electronics. |
| Low profile SMC package | Enables high-density PCB layouts and compatibility with automated pick-and-place equipment (IPC-J-STD-020 MSL Level 1). |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for global OEM supply chains and end-of-life recycling mandates. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground, clamping surges before they reach sensitive input stages of transceivers or ADC front-ends. Use Value: Limits voltage to ≤219 V during 10/1000 μs surge, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs while maintaining signal integrity. |
Use Scenario: Safeguarding digital input/output terminals of programmable logic controllers against field-wiring induced surges and electrostatic discharge in factory automation systems. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC I/O channels, mounted adjacent to connector entry points to intercept transients before reaching isolation barriers or microcontroller GPIOs. Use Value: Delivers 1500 W surge handling with <1 ns response, enabling compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity requirements for industrial equipment. |
| DC Power Rail Protection | Telecom Line Interface Protection |
|
Use Scenario: Secondary surge suppression on 12 V or 24 V DC power distribution networks feeding infotainment head units, telematics modules, or ADAS cameras. IC Role / Device Role / Timing Role: Parallel-connected unidirectional TVS referenced to ground, absorbing energy from inductive kickback and battery reversal events. Use Value: Withstands 200 A peak forward surge (IFSM) and maintains clamping at 219 V, protecting downstream DC-DC converters and PMICs from overvoltage failure. |
Use Scenario: Front-end protection for Ethernet PHYs, RS-485 transceivers, and DSL line drivers exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage transient suppressor on differential pair or single-ended line, coordinated with GDT or MOV secondary protection. Use Value: Provides precise 136 V standoff and 219 V clamping to avoid false triggering while ensuring sub-100 ns response to fast-rising telecom surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ160A | Same VWM (136 V), but lower PPPM (400 W); SMA package (smaller footprint, higher RθJA = 110 °C/W). | Limited to lower-energy transients (IEC 61000-4-2 contact discharge only); unsuitable for ISO 7637-2 or IEC 61000-4-5 Level 4. | Select when board space is constrained and surge threat level is low; verify thermal margin with RθJA derating. |
| 1.5KE160A | Same electrical specs (VWM/VBR/VC), but axial-leaded DO-201 package; no AEC-Q101 qualification; higher mounting inductance. | Not suitable for automated SMT assembly; incompatible with high-frequency surge waveforms due to lead inductance. | Choose only for through-hole prototyping or legacy repair; avoid in new automotive or high-reliability designs. |
Compared with SMAJ160A and 1.5KE160A, the 1.5SMC160AHM3/I delivers superior surge robustness (1500 W vs. 400 W or 1500 W with inferior thermal and mechanical integration), AEC-Q101 validation, and optimized SMT manufacturability - making it the preferred choice for production-grade automotive and industrial systems requiring repeatable, high-energy clamping performance.
Availability
1.5SMC160AHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and DC power rail surge suppression requiring stable component supply, long-term lifecycle support, and traceable sourcing for Tier-1 OEM programs.
Supply support for 1.5SMC160AHM3/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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series is engineered for high-power transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness against lightning, EFT, and load-dump events is mandatory.
FAQ
What is the clamping voltage of the 1.5SMC160AHM3/I under a 10/1000 μs surge?
The 1.5SMC160AHM3/I has a maximum clamping voltage (VC) of 219 V at 6.8 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per Fig. 1 and Fig. 3 in the Vishay datasheet (Doc. #88303), and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The 1.5SMC160AHM3/I maintains this clamping performance across its rated junction temperature range.
Is the 1.5SMC160AHM3/I qualified for automotive use?
Yes, the 1.5SMC160AHM3/I carries the HM3 suffix, indicating halogen-free, RoHS-compliant construction and full AEC-Q101 qualification. It has passed stress tests including high-temperature reverse bias (HTGB), temperature cycling (TCT), and highly accelerated temperature-humidity bias (H3TRB), making it suitable for under-hood and chassis-mounted automotive electronics. The 1.5SMC160AHM3/I is explicitly listed in Vishay's AEC-Q101 qualified product matrix.
What does the "I" suffix mean in 1.5SMC160AHM3/I?
The "I" suffix in 1.5SMC160AHM3/I denotes packaging in 13-inch diameter plastic tape and reel, with a standard quantity of 3500 pieces per reel. This format supports high-volume automated SMT assembly and is compatible with industry-standard pick-and-place feeders. The base "HM3" confirms halogen-free, RoHS-compliant, and AEC-Q101 qualified construction, while the "I" specifies reel size and quantity - not a functional or electrical variant.
How does the 1.5SMC160AHM3/I differ from bidirectional TVS diodes like 1.5SMC160CA?
The 1.5SMC160AHM3/I is unidirectional and features a cathode band for polarity identification, enabling asymmetric clamping (forward conduction + reverse avalanche). In contrast, 1.5SMC160CA is bidirectional with symmetrical clamping in both directions and no polarity marking. The 1.5SMC160AHM3/I is used where DC bias exists (e.g., power rails, single-ended signals), while 1.5SMC160CA suits AC-coupled or differential lines like RS-485. Electrical parameters (VWM, VBR, VC) differ accordingly between variants.
What is the thermal resistance of the 1.5SMC160AHM3/I, and how does it affect layout?
The 1.5SMC160AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal - as specified in the Vishay datasheet. This value requires PCB layout with adequate copper area and thermal vias to maintain TJ ≤ 150 °C under sustained power dissipation. Reducing pad size or omitting thermal relief increases RθJA, risking premature thermal shutdown or parametric drift during repetitive surges.
1.5SMC160AHM3/I 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:
- Discontinued at Digi-Key
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC160AHM3/I FAQ
1.How can I place an order for 1.5SMC160AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC160AHM3/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 1.5SMC160AHM3/I reliable?
The price and inventory of 1.5SMC160AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC160AHM3/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC160AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC160AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC160AHM3/I?
1.5SMC160AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC160AHM3/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 1.5SMC160AHM3/I?
For technical support, including 1.5SMC160AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC160AHM3/I requirements.
6.How does Aetrix verify that 1.5SMC160AHM3/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC160AHM3/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 1.5SMC160AHM3/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC160AHM3/I?
All 1.5SMC160AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC160AHM3/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 1.5SMC160AHM3/I part is unused and in its original packaging.
Return procedure for 1.5SMC160AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC160AHM3/I Tags
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