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Vishay General Semiconductor - Diodes Division 1.5SMC180AHE3_A/H
- Part No.:
- 1.5SMC180AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC180AHE3_A/H.pdf
- Description:
- TVS DIODE 154VWM 246VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:7,986
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Product details
Overview
1.5SMC180AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 180 V standoff voltage (VWM), 246 V clamping voltage (VC) at 6.1 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive power supply rails, industrial motor drives, and telecom interface protection.
For engineers reviewing the 1.5SMC180AHE3_A/H datasheet, 1.5SMC180AHE3_A/H pinout, 1.5SMC180AHE3_A/H application, or 1.5SMC180AHE3_A/H equivalent, key selection criteria include clamping performance under 10/1000 μs transients, AEC-Q101 qualification status, SMC (DO-214AB) package thermal resistance (RθJA = 75 °C/W), and unidirectional polarity marking for correct PCB orientation.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds its breakdown threshold (VBR = 171–189 V), it avalanches to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable leakage (<1 μA at VWM) and fast response time (<1.0 ns), critical for protecting MOSFET gates and microcontroller I/O against ESD and lightning-induced transients.
Rated for 150 °C maximum junction temperature and qualified to AEC-Q101, the 1.5SMC180AHE3_A/H supports automotive-grade reliability. Its SMC package delivers low incremental surge resistance and meets J-STD-020 MSL Level 1 (260 °C reflow peak), enabling robust automated assembly without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 154 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC/AC working margin. |
| VBR (Breakdown) | 171–189 V at 1 mA - Voltage range where avalanche conduction initiates; tight tolerance enables predictable trigger behavior. |
| VC (Clamping) | 246 V at IPPM = 6.1 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines stress on downstream components. |
| PPPM | 1500 W - Surge energy handling capacity per 10/1000 μs pulse; sufficient for ISO 7637-2 Pulse 1/2b and IEC 61000-4-5 Level 4. |
| ID (Leakage) | <1 μA at VWM - Minimal standby power loss and negligible loading on high-impedance sensor or reference circuits. |
| TJ max. | +150 °C - Enables operation in under-hood automotive environments and enclosed industrial enclosures without derating. |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient on standard 8 mm × 8 mm copper pads; informs heatsinking requirements. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified. Cathode indicated by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to ground or low-impedance return plane; must handle full IPPM during clamping event. |
| Cathode | Reverse voltage sensing / Surge current sink | Connected to protected line (e.g., 12 V rail); band marking ensures correct orientation during placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive powertrain and chassis applications requiring zero-failure reliability over temperature and lifetime. |
| 1500 W peak pulse power | Withstands repeated 10/1000 μs surges up to 6.1 A without degradation - suitable for harsh industrial and vehicle electrical systems. |
| Glass passivated junction | Ensures stable VBR and low leakage across -65 °C to +150 °C; eliminates risk of parametric drift in humid or thermally cycled environments. |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak - eliminates baking steps and simplifies SMT line integration. |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage stress on protected ICs - critical for safeguarding 170–200 V-rated MOSFETs and gate drivers. |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs and body control modules from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp spikes above 154 V. Use Value: Limits transient voltage to ≤246 V, preventing damage to 36 V-rated LDOs and CAN transceivers downstream. |
Use Scenario: Safeguarding gate driver inputs and feedback sensors in variable-frequency AC drives exposed to inductive switching noise. IC Role / Device Role / Timing Role: TVS mounted at motor controller PCB edge to suppress reflected surge energy from IGBT turn-off. Use Value: Fast <1 ns response and 1500 W rating absorb repetitive 10/1000 μs pulses without thermal runaway. |
| Telecom Interface Protection | Renewable Energy Inverter DC Link |
Use Scenario: Shielding RS-485/RS-232 transceivers and Ethernet PHYs in outdoor base stations from lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS on data line pair referenced to local ground, coordinated with common-mode chokes. Use Value: Low capacitance (typ. <100 pF) avoids signal integrity degradation while clamping ±246 V transients. |
Use Scenario: Protecting DC link monitoring circuits and auxiliary power supplies in solar inverters subjected to grid-switching transients. IC Role / Device Role / Timing Role: TVS placed across DC bus sense resistors and voltage dividers to prevent overvoltage saturation of ADC inputs. Use Value: 154 V VWM aligns with 200 V nominal DC bus; 246 V VC ensures measurement circuit remains within 3.3 V ADC input range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ180A | Same VWM (154 V), lower PPPM (400 W), SMA package (higher RθJA = 110 °C/W) | Limited to lower-energy transients (IEC 61000-4-2 only); unsuitable for ISO 7637-2 Pulse 5a load dump. | Select when cost and board space are prioritized over automotive-grade surge immunity. |
| 1.5KE180A | Through-hole TO-204AE (DO-41), identical VWM/VC/PPPM but no AEC-Q101 qualification | Not approved for automotive production; requires manual insertion or wave soldering; higher assembly cost. | Choose only for prototyping or non-automotive industrial use where AEC-Q101 is not mandated. |
Compared with SMAJ180A and 1.5KE180A, the 1.5SMC180AHE3_A/H uniquely combines AEC-Q101 qualification, 1500 W surge rating, and SMC surface-mount compatibility - making it the only option qualified for volume automotive electronics requiring zero-defect field reliability and automated manufacturing.
Availability
1.5SMC180AHE3_A/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial motor drive development, and telecom infrastructure projects requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101-compliant sourcing.
Supply support for 1.5SMC180AHE3_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, and protection devices with emphasis on reliability, precision, and automotive qualification.
The 1.5SMC Series was engineered specifically for high-power transient suppression in demanding environments - targeting automotive, industrial, and telecom applications where robustness, consistency, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC180AHE3_A/H under a 10/1000 μs surge?
The 1.5SMC180AHE3_A/H has a maximum clamping voltage (VC) of 246 V at 6.1 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per industry-standard test conditions and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream components like 3.3 V microcontrollers or 200 V MOSFETs remain within safe operating limits.
Is the 1.5SMC180AHE3_A/H AEC-Q101 qualified?
Yes, the 1.5SMC180AHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation revision notes specifying AEC-Q101 availability for _A-suffix parts in the 1.5SMC series. This qualification validates its suitability for automotive powertrain, chassis, and body electronics where zero-defect reliability across temperature cycling, humidity, and mechanical shock is required.
What does the "HE3" suffix mean in 1.5SMC180AHE3_A/H?
The "HE3" suffix in 1.5SMC180AHE3_A/H indicates RoHS-compliant construction with AEC-Q101 qualification, while "_A/H" denotes packaging in 7-inch plastic tape and reel (850 units per reel). The "H" refers to the reel diameter and packaging format, not electrical or thermal characteristics - all electrical specs remain identical to other 1.5SMC180A variants with HE3 marking.
Can the 1.5SMC180AHE3_A/H be used in bidirectional applications?
No, the 1.5SMC180AHE3_A/H is unidirectional only, as indicated by the "A" suffix (versus "CA" for bidirectional). Its cathode band marking and asymmetric IV curve require correct polarity orientation - reverse connection will not provide protection. For bidirectional surge suppression, select 1.5SMC180CAHE3_A/H instead.
What is the thermal resistance of the 1.5SMC180AHE3_A/H?
The 1.5SMC180AHE3_A/H 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. This value assumes standard JEDEC test conditions and informs thermal design - for example, at 6.5 W steady-state dissipation, junction temperature rise would be ~488 °C above ambient, confirming that the device is intended for transient-only operation, not continuous power dissipation.
1.5SMC180AHE3_A/H 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):
- 154V
- Voltage - Breakdown (Min):
- 171V
- Voltage - Clamping (Max) @ Ipp:
- 246V
- Current - Peak Pulse (10/1000µs):
- 6.1A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
1.5SMC180AHE3_A/H FAQ
1.How can I place an order for 1.5SMC180AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC180AHE3_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 1.5SMC180AHE3_A/H reliable?
The price and inventory of 1.5SMC180AHE3_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 1.5SMC180AHE3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC180AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC180AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC180AHE3_A/H?
1.5SMC180AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC180AHE3_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 1.5SMC180AHE3_A/H?
For technical support, including 1.5SMC180AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC180AHE3_A/H requirements.
6.How does Aetrix verify that 1.5SMC180AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC180AHE3_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 1.5SMC180AHE3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC180AHE3_A/H?
All 1.5SMC180AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC180AHE3_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 1.5SMC180AHE3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC180AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC180AHE3_A/H Tags
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