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Vishay General Semiconductor - Diodes Division 3KASMC13AHE3_A/I
- Part No.:
- 3KASMC13AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC13AHE3_A/I.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,011
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Product details
Overview
3KASMC13AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for high-energy surge protection in automotive and industrial power rails. It delivers 3000 W peak pulse power (10/1000 μs), clamps at 21.5 V under 140 A surge current, and operates up to 185 °C junction temperature - enabling robust protection of MOSFETs and sensor signal lines in engine control units and battery management systems.
For engineers reviewing the 3KASMC13AHE3_A/I datasheet, 3KASMC13AHE3_A/I pinout, 3KASMC13AHE3_A/I application, or 3KASMC13AHE3_A/I equivalent, key selection criteria include its DO-214AB (SMC) package compatibility, AEC-Q101 qualification, 13 V stand-off voltage, low 1.0 mA test current for breakdown verification, and thermal resistance of 77.5 °C/W for board-level thermal design.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable clamping performance across -65 °C to +185 °C operating range. Its unidirectional polarity and 14.4–15.9 V breakdown voltage (at 1.0 mA) ensure precise overvoltage thresholding for DC power rail protection.
The device sustains 200 A non-repetitive forward surge current (8.3 ms half-sine) and exhibits low incremental surge resistance, enabling effective suppression of fast transients from inductive load switching. Its MSL Level 1 rating and matte tin-plated leads support lead-free reflow assembly without whisker risk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse working voltage before leakage exceeds 2.0 μA; defines safe operating margin below clamping threshold |
| VBR (min/max) | 14.4 V / 15.9 V at 1.0 mA - Confirmed breakdown range ensures reliable turn-on during overvoltage events |
| VC @ IPPM | 21.5 V at 140 A - Clamping voltage under full 3000 W surge; determines maximum stress on protected downstream IC |
| PPPM | 3000 W (10/1000 μs) - Peak pulse power handling capacity for automotive load-dump and ISO 7637-2 transient immunity |
| TJ max. | +185 °C - Enables operation in under-hood automotive environments and high-temperature industrial enclosures |
| RθJA | 77.5 °C/W - Thermal resistance from junction to ambient; informs minimum PCB copper area required for thermal management |
| AEC-Q101 | Qualified - Validated for automotive electronic modules per stress test requirements including HTGB, HTRB, and TCT |
Pinout & Package
Package: DO-214AB (SMC) - Surface-mount plastic case with cathode band marking; dimensions 7.11 mm × 6.22 mm × 2.90 mm; UL 94 V-0 rated molding compound; RoHS-compliant and halogen-free per JEDEC JS709A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path during surge | Connected to protected circuit ground or low-side return; carries full surge current during clamping |
| Cathode | Reverse-biased terminal during normal operation | Connected to protected line (e.g., 12 V rail); color band identifies this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable leakage behavior and long-term reliability under thermal cycling and humidity exposure |
| 185 °C junction temperature capability | Supports placement near heat sources (e.g., power converters) without derating in automotive under-hood applications |
| 3000 W peak pulse power (10/1000 μs) | Meets ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 surge immunity requirements for Class III equipment |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage overshoot during fast transients, reducing stress on downstream MOSFET gate oxides and IC inputs |
| MSL Level 1, 260 °C peak reflow | Allows single-pass lead-free reflow without moisture-induced delamination or popcorn effect |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Power Input Stage |
|---|---|
Use Scenario: Protects 12 V supply rail against load-dump transients (up to 60 V, 400 ms) generated by alternator disconnection in vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery feed and input filter capacitor to clamp surges before they reach DC/DC controllers and microcontrollers. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic supplies by limiting rail voltage to ≤21.5 V during 140 A surge events. |
Use Scenario: Shields programmable logic controller (PLC) 24 V DC input terminals from field-wiring induced surges during maintenance or cable coupling. IC Role / Device Role / Timing Role: Primary surge arrestor mounted directly at connector entry point, upstream of EMI filters and linear regulators. Use Value: Maintains system uptime by absorbing 3000 W transients without degradation, verified per IEC 61000-4-5 Level 4 (4 kV line-to-ground). |
| Automotive Battery Management System (BMS) | Telecom Remote Radio Unit (RRU) Power Interface |
Use Scenario: Guards cell monitoring ICs and isolation amplifiers connected to high-voltage battery packs against ground bounce and switching noise. IC Role / Device Role / Timing Role: Localized TVS on each analog sensing line (e.g., voltage, temperature) to suppress fast common-mode transients. Use Value: Ensures measurement integrity by limiting transient-induced offset errors to <1 LSB in 16-bit ADCs via sub-22 V clamping. |
Use Scenario: Protects 48 V PoE-derived power inputs in outdoor wireless base stations exposed to lightning-induced surges on tower-mounted cabling. IC Role / Device Role / Timing Role: First-stage protector on DC input before DC/DC conversion and hot-swap controllers. Use Value: Survives repeated 10/1000 μs surges up to 3 kA (derated) while maintaining <5 μA leakage at 13 V for low standby power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A-E3/57T (Vishay) | Same DO-214AC (SMA) package; lower 400 W PPPM; VC = 21.5 V @ 19.9 A; RθJA = 110 °C/W | Targeted at consumer-grade or non-automotive applications with lower surge energy requirements | Select when space-constrained layouts require smaller footprint and AEC-Q101 qualification is not mandatory |
| 1.5KE13A (ON Semiconductor) | Through-hole DO-201AE package; 1500 W PPPM; VC = 21.2 V @ 71 A; TJ max = 175 °C; no AEC-Q101 | Suitable for prototyping or legacy through-hole designs where reflow compatibility is not required | Choose only for cost-sensitive industrial prototypes where surface-mount assembly is unavailable or thermal derating is acceptable |
Compared with SMAJ13A-E3/57T and 1.5KE13A, the 3KASMC13AHE3_A/I provides 7.5× higher surge power handling, 10 °C higher junction temperature rating, and automotive-grade qualification - making it the sole option for production-grade AEC-Q101-compliant 12 V rail protection in SMC footprint.
Availability
3KASMC13AHE3_A/I is available at Aetrix Electronics and suitable for automotive ECU designs, industrial PLC power interfaces, and telecom RRU power inputs requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for 3KASMC13AHE3_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 high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The 3KASMC series belongs to Vishay's PAR® (Protected Anisotropic Rectifier) TVS platform, engineered specifically for AEC-Q101-compliant transient suppression in harsh-environment automotive power systems and high-temperature industrial controls.
FAQ
What is the exact breakdown voltage range of the 3KASMC13AHE3_A/I?
The 3KASMC13AHE3_A/I has a specified breakdown voltage (VBR) range of 14.4 V to 15.9 V at a test current of 1.0 mA, measured per ANSI/IEEE C62.35 standards. This range ensures consistent turn-on behavior across production lots and temperature extremes, and is confirmed in the Vishay document 89962, page 2, Electrical Characteristics table.
Is the 3KASMC13AHE3_A/I qualified for automotive use?
Yes, the 3KASMC13AHE3_A/I is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet (document 89962, page 1, FEATURES section and page 2, Notes section). This qualification covers stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT), validating its suitability for automotive powertrain and body electronics.
What does the "_A/I" suffix mean in 3KASMC13AHE3_A/I?
The "_A/I" suffix in 3KASMC13AHE3_A/I indicates the packaging configuration: "A" denotes the HM3 base part (RoHS-compliant, AEC-Q101 qualified), and "I" specifies the delivery mode as 13-inch diameter plastic tape and reel with 3500 units per reel, per Vishay's Ordering Information table on page 2 of document 89962.
What is the clamping voltage of the 3KASMC13AHE3_A/I under maximum surge current?
The 3KASMC13AHE3_A/I clamps to a maximum of 21.5 V when subjected to its rated peak pulse current of 140 A (10/1000 μs waveform), as published in the Electrical Characteristics table (page 2 of document 89962). This value defines the upper voltage limit imposed on protected circuits during worst-case surge events.
Does the 3KASMC13AHE3_A/I have a unidirectional or bidirectional configuration?
The 3KASMC13AHE3_A/I is unidirectional only, as clearly stated in the FEATURES section of the Vishay datasheet (document 89962, page 1): "Available in uni-directional polarity only." Its electrical characteristics table lists only reverse stand-off (VWM) and breakdown (VBR) parameters, with no forward breakdown data provided.
3KASMC13AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 140A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
3KASMC13AHE3_A/I FAQ
1.How can I place an order for 3KASMC13AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC13AHE3_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 3KASMC13AHE3_A/I reliable?
The price and inventory of 3KASMC13AHE3_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 3KASMC13AHE3_A/I is usually 5 days.
3.What payment methods are accepted for 3KASMC13AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC13AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC13AHE3_A/I?
3KASMC13AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC13AHE3_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 3KASMC13AHE3_A/I?
For technical support, including 3KASMC13AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC13AHE3_A/I requirements.
6.How does Aetrix verify that 3KASMC13AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 3KASMC13AHE3_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 3KASMC13AHE3_A/I meets industry standards.
7.What is the process for return or replacement of 3KASMC13AHE3_A/I?
All 3KASMC13AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC13AHE3_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 3KASMC13AHE3_A/I part is unused and in its original packaging.
Return procedure for 3KASMC13AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3KASMC13AHE3_A/I Tags
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