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Vishay General Semiconductor - Diodes Division 1.5SMC250AHE3_A/I
- Part No.:
- 1.5SMC250AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC250AHE3_A/I.pdf
- Description:
- TVS DIODE 214VWM 344VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,107
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Product details
Overview
1.5SMC250AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, rated for 250 V standoff voltage (VWM), 263 V maximum breakdown voltage (VBR), and 1500 W peak pulse power (10/1000 μs). It provides robust clamping at 344 V (VC) under 4.4 A peak pulse current, with AEC-Q101 qualification for automotive-grade reliability in power line and signal line protection.
For engineers reviewing the 1.5SMC250AHE3_A/I datasheet, 1.5SMC250AHE3_A/I pinout, 1.5SMC250AHE3_A/I application, or 1.5SMC250AHE3_A/I equivalent, this device serves as a high-voltage transient suppressor for automotive power distribution, industrial DC bus lines, and telecom interface protection where precise clamping, low leakage (<1 μA at 214 V), and MSL Level 1 solderability are required.
Technical Context
The 1.5SMC250AHE3_A/I uses a glass-passivated silicon junction optimized for fast response to ESD and lightning-induced transients, with clamping action governed by avalanche breakdown. Its unidirectional polarity features a cathode band marking and supports only reverse-biased surge suppression.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, enabling operation up to +150 °C junction temperature. It meets J-STD-020 MSL Level 1 (260 °C peak reflow) and is halogen-free, RoHS-compliant, and qualified per AEC-Q101 for automotive underhood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 214 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin. |
| VBR (Breakdown) | 237–263 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping) | 344 V at IPPM = 4.4 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; critical for downstream IC survival. |
| PPPM | 1500 W - Surge energy handling capability under standardized 10/1000 μs waveform; enables protection against IEC 61000-4-5 Level 4 surges. |
| ID (Leakage) | <1 μA at 214 V - Ultra-low reverse leakage preserves system efficiency and prevents false triggering in high-impedance circuits. |
| TJ max | +150 °C - Maximum junction temperature rating; supports under-hood automotive deployment without derating at 85 °C ambient. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal footprint; compatible with automated pick-and-place. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode of internal PN junction (reverse-biased during suppression) | Connected to protected line; clamps when voltage exceeds VWM in reverse direction. |
| Anode (unmarked end) | Cathode of internal PN junction | Typically tied to ground or lower-potential rail; completes current path during transient event. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood use including temperature cycling, humidity, and mechanical shock per stress test requirements. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 combination wave (1.2/50 μs voltage, 8/20 μs current) up to Level 4 (4 kV/2 kA) on properly laid out PCB. |
| Glass passivated junction | Ensures stable VBR over lifetime and resistance to moisture-induced parameter drift in humid environments. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ESD > 10 kV/ns), improving protection margin. |
| MSL Level 1 (260 °C) | Supports standard lead-free reflow profiles without pre-baking; eliminates manufacturing yield loss in high-volume SMT lines. |
Applications
| Automotive Power Distribution | Industrial DC Bus Protection |
|---|---|
Use Scenario: 24 V and 48 V battery-fed control modules exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp transients above 214 V. Use Value: Limits peak voltage to 344 V during 120 V/400 ms load dump, protecting MCU power supplies and CAN transceivers. |
Use Scenario: 300–400 V DC link in motor drives and solar inverters subject to switching spikes and lightning coupling. IC Role / Device Role / Timing Role: High-voltage TVS across DC bus terminals to absorb repetitive commutation energy and rare surge events. Use Value: Withstands 1500 W pulses without degradation, maintaining clamping stability over 10⁵ surge cycles per JEDEC JESD22-A114. |
| Telecom Interface Protection | EV Charging Station Control Lines |
Use Scenario: RS-485/RS-232 data lines in base stations and remote radio units connected to outdoor antennas. IC Role / Device Role / Timing Role: Series-connected TVS on differential pairs to suppress induced lightning surges while preserving signal integrity. Use Value: Low capacitance (typ. <100 pF at 0 V) avoids signal distortion at 10 Mbps; clamps common-mode transients to safe levels. |
Use Scenario: Signal lines (e.g., CP/PP in SAE J1772) linking EVSE controller to vehicle during AC charging handshaking. IC Role / Device Role / Timing Role: Unidirectional TVS on control pilot circuit to prevent latch-up or damage from ground potential differences. Use Value: AEC-Q101 qualification ensures reliability across -40 °C to +125 °C ambient, meeting ISO 17987-3 EMC immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ250A-E3/52 | Same VWM (250 V), lower PPPM (600 W), SMB package (smaller thermal mass, higher RθJA). | Limited to lower-energy surges; unsuitable for ISO 16750-2 load dump or IEC 61000-4-5 Level 4. | Select when board space is constrained and surge threat level is ≤ Level 2 (1 kV/500 A). |
| 1.5KE250A | Through-hole DO-201 package, identical electrical specs but no AEC-Q101 qualification or MSL Level 1 rating. | Not suitable for automated SMT production or automotive underhood environments requiring reflow compatibility. | Choose only for legacy through-hole designs or non-automotive industrial prototypes where qualification is not mandated. |
Compared with 1.5SMC250AHE3_A/I, SMBJ250A-E3/52 trades surge robustness for compactness, while 1.5KE250A sacrifices manufacturability and automotive compliance for cost-making 1.5SMC250AHE3_A/I the sole option balancing AEC-Q101, 1500 W rating, and SMT readiness.
Availability
1.5SMC250AHE3_A/I is available at Aetrix Electronics and suitable for automotive power systems, industrial motor drives, telecom infrastructure, and EV charging equipment requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for 1.5SMC250AHE3_A/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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1.5SMC Series was designed specifically for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom applications demanding AEC-Q101 compliance, 1500 W surge capability, and surface-mount scalability.
FAQ
What is the clamping voltage of the 1.5SMC250AHE3_A/I under a 10/1000 μs surge?
The 1.5SMC250AHE3_A/I clamps to a maximum of 344 V when subjected to its rated peak pulse current of 4.4 A under the standardized 10/1000 μs waveform. This value is measured per Figure 1 in Vishay Document 88303 and represents the upper limit of voltage imposed on the protected circuit during surge conditions. The 1.5SMC250AHE3_A/I maintains this clamping performance across its full operating temperature range from –65 °C to +150 °C.
Is the 1.5SMC250AHE3_A/I suitable for automotive applications?
Yes, the 1.5SMC250AHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use with suffix "HE3" indicating RoHS-compliant and AEC-Q101 qualified construction. It meets requirements for underhood temperature cycling, humidity resistance, and mechanical shock, and is rated for operation up to +150 °C junction temperature-making it appropriate for engine control units, body electronics, and ADAS power domains.
What does the "_A/I" suffix mean in 1.5SMC250AHE3_A/I?
The "_A/I" suffix in 1.5SMC250AHE3_A/I indicates packaging configuration: "A" denotes AEC-Q101 qualification (per note 2 in the ordering table), and "I" specifies 13-inch diameter plastic tape and reel with 3500 units per reel. This format ensures compatibility with high-speed SMT placement equipment and supports large-volume automotive production runs.
How does the 1.5SMC250AHE3_A/I compare to bidirectional TVS diodes?
The 1.5SMC250AHE3_A/I is unidirectional and intended for DC power line protection where polarity is fixed-clamping only in reverse bias. Unlike bidirectional variants (e.g., 1.5SMC250CA), it cannot suppress symmetrical AC transients. Its forward voltage drop (~3.5 V at 100 A) is irrelevant in normal operation since it conducts only during reverse surges, whereas bidirectional types exhibit symmetric clamping in both polarities.
What is the thermal resistance of the 1.5SMC250AHE3_A/I?
The 1.5SMC250AHE3_A/I 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, and a junction-to-leads resistance (RθJL) of 15 °C/W. These values define its steady-state power dissipation limit (6.5 W at TA = 50 °C) and transient thermal response during surge events.
1.5SMC250AHE3_A/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 214V
- Voltage - Breakdown (Min):
- 237V
- Voltage - Clamping (Max) @ Ipp:
- 344V
- Current - Peak Pulse (10/1000µs):
- 4.4A
- 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)
1.5SMC250AHE3_A/I FAQ
1.How can I place an order for 1.5SMC250AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC250AHE3_A/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 1.5SMC250AHE3_A/I reliable?
The price and inventory of 1.5SMC250AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC250AHE3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC250AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC250AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC250AHE3_A/I?
1.5SMC250AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC250AHE3_A/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 1.5SMC250AHE3_A/I?
For technical support, including 1.5SMC250AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC250AHE3_A/I requirements.
6.How does Aetrix verify that 1.5SMC250AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC250AHE3_A/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 1.5SMC250AHE3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC250AHE3_A/I?
All 1.5SMC250AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC250AHE3_A/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 1.5SMC250AHE3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC250AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC250AHE3_A/I Tags
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