My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5KE15AHE3_B/C
- Part No.:
- 1.5KE15AHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE15AHE3_B/C.pdf
- Description:
- 1.5KW,15V 5%,UNIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,932
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE15AHE3_B/C from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 15 V breakdown voltage (VBR = 14.3–15.8 V at 1 mA), 12.8 V maximum standoff voltage (VWM), 21.2 V clamping voltage (VC) at 70.8 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5KE15AHE3_B/C datasheet, 1.5KE15AHE3_B/C pinout, 1.5KE15AHE3_B/C application, or 1.5KE15AHE3_B/C equivalent, this part delivers verified AEC-Q101 qualification (per note 2), RoHS-compliant matte tin-plated leads, 175 °C max junction temperature, and UL 94 V-0 molded epoxy packaging - critical for automotive, industrial, and telecom surge protection design validation.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when transient voltage exceeds VBR, it avalanches into low-impedance conduction within <1 ns, diverting surge current away from downstream components. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance.
It is rated for 1500 W peak pulse power (10/1000 µs), supports 200 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits 0.084 %/°C temperature coefficient of VBR. Thermal resistance is 15.4 °C/W (junction-to-lead), enabling effective heat dissipation through PCB copper pours or lead-frame mounting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.3 V / 15.8 V at 1 mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 12.8 V - maximum continuous reverse operating voltage before leakage rises above 1 µA |
| VC @ IPPM | 21.2 V at 70.8 A - clamping voltage during full 1500 W surge, limiting stress on protected ICs |
| PPPM | 1500 W - peak pulse power handling capability with standardized 10/1000 µs waveform |
| IFSM | 200 A - single-cycle surge current rating (8.3 ms half-sine), supporting high-energy inductive kick suppression |
| TJ max | +175 °C - enables operation in under-hood automotive or high-ambient industrial environments |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with 0.375" (9.5 mm) lead length, UL 94 V-0 compliant |
Pinout & Package
1.5KE15AHE3_B/C uses a 2-terminal axial-leaded DO-201AD (Case Style 1.5KE) package. The cathode is marked by a color band on the body; polarity must be observed in series connection with DC rails.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or transient clamping (reverse-biased mode) | Connected to ground or low-impedance return path to sink surge current safely |
| Cathode | Current exit point during clamping; marked with color band | Connected to protected line (e.g., +12 V rail); voltage referenced to anode during avalanche |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable, repeatable breakdown voltage and long-term reliability under thermal cycling |
| AEC-Q101 qualified (HE3_B suffix) | Validated for automotive applications including engine control units and body electronics |
| 1500 W peak pulse power (10/1000 µs) | Provides robust protection against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 Level 4 surges |
| UL 94 V-0 molded epoxy case | Meets flammability safety requirements for enclosed industrial and automotive enclosures |
| Matte tin-plated leads (J-STD-002/JESD 22-B102 compliant) | Guarantees solderability and intermetallic bond integrity in automated assembly processes |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp spikes above 15 V. Use Value: Limits transient voltage to ≤21.2 V during 70.8 A surges, preventing gate oxide damage in MCU power management ICs. |
Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF typical) TVS mounted at connector entry to suppress ESD and cable discharge events. Use Value: Sub-nanosecond response clamps 8/20 µs surges before signal conditioning op-amps saturate or latch up. |
| Telecom Line Card Surge Suppression | Consumer Power Adapter Input Protection |
Use Scenario: Secondary-side DC output protection in PoE-powered network switches exposed to induced lightning surges. IC Role / Device Role / Timing Role: Primary-stage TVS on 48 V DC distribution bus upstream of DC-DC converters. Use Value: Absorbs 1500 W transients without degradation, maintaining system uptime during outdoor installation surges. |
Use Scenario: Input-stage overvoltage protection in AC/DC adapters for smart home hubs and IoT gateways. IC Role / Device Role / Timing Role: Unidirectional TVS across bulk capacitor input to prevent overvoltage failure during brownout recovery. Use Value: Withstands repeated 10/1000 µs surges at 0.01% duty cycle, extending adapter field life beyond 10 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | DO-214AA (SMB) surface-mount package; same VBR range but lower PPPM (600 W) | Preferred for space-constrained PCBs where reflow assembly is required; not suitable for high-energy 1500 W surges | Select SMBJ15A only if layout constraints prohibit axial-leaded devices and surge energy is limited to ≤600 W. |
| 1.5KE15CA | Bidirectional variant (VBR = 14.3–15.8 V); identical package and power rating but symmetrical clamping | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN bus) where polarity reversal occurs | Choose 1.5KE15CA instead of 1.5KE15AHE3_B/C only when protecting bidirectional data lines or transformer-coupled circuits. |
Compared with SMBJ15A and 1.5KE15CA, the 1.5KE15AHE3_B/C uniquely combines AEC-Q101 qualification, 1500 W surge capacity, and axial-leaded DO-201AD mechanical robustness - making it optimal for high-reliability, high-energy DC rail protection where through-hole mounting and automotive-grade validation are mandatory.
Availability
1.5KE15AHE3_B/C is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom line card production requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1.5KE15AHE3_B/C 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, rectifiers, and protection devices with broad automotive and industrial certifications.
The 1.5KE family was engineered specifically for high-power transient suppression in harsh environments - delivering consistent clamping performance across -55 °C to +175 °C with AEC-Q101 validation for under-hood and industrial control applications.
FAQ
What is the breakdown voltage tolerance of the 1.5KE15AHE3_B/C?
The 1.5KE15AHE3_B/C has a guaranteed breakdown voltage range of 14.3 V to 15.8 V at 1 mA test current, corresponding to ±5% tolerance around the nominal 15 V rating. This tight VBR window ensures predictable clamping onset across production lots and temperature extremes from -55 °C to +175 °C.
Is the 1.5KE15AHE3_B/C suitable for automotive applications?
Yes, the 1.5KE15AHE3_B/C is AEC-Q101 qualified (as indicated by the HE3_B suffix), validated for use in automotive powertrain, body electronics, and infotainment systems. Its 175 °C maximum junction temperature, robust DO-201AD package, and compliance with ISO 7637-2 transient immunity make it appropriate for under-hood and dashboard-mounted ECUs.
How does the 1.5KE15AHE3_B/C differ from standard 1.5KE15A parts?
The 1.5KE15AHE3_B/C differs from generic 1.5KE15A parts by incorporating the HE3_B suffix: RoHS-compliant matte tin plating, JESD 201 Class 2 whisker resistance, and formal AEC-Q101 qualification. Standard 1.5KE15A (E3 suffix) lacks automotive qualification and uses Class 1A whisker testing only.
What is the clamping voltage of the 1.5KE15AHE3_B/C at its rated peak pulse current?
The 1.5KE15AHE3_B/C clamps to a maximum of 21.2 V at its rated peak pulse current of 70.8 A (10/1000 µs waveform). This VC value is measured under standardized surge conditions and defines the upper voltage limit imposed on protected circuitry during worst-case transients.
Can the 1.5KE15AHE3_B/C be used in bidirectional signal protection?
No, the 1.5KE15AHE3_B/C is unidirectional and must be installed with correct polarity (cathode toward the protected line). For bidirectional protection - such as on RS-485 or CAN bus lines - the 1.5KE15CA variant must be used instead, as it provides symmetrical clamping in both directions.
1.5KE15AHE3_B/C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 74A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE15AHE3_B/C FAQ
1.How can I place an order for 1.5KE15AHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE15AHE3_B/C 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 1.5KE15AHE3_B/C reliable?
The price and inventory of 1.5KE15AHE3_B/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE15AHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1.5KE15AHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE15AHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE15AHE3_B/C?
1.5KE15AHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE15AHE3_B/C 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 1.5KE15AHE3_B/C?
For technical support, including 1.5KE15AHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE15AHE3_B/C requirements.
6.How does Aetrix verify that 1.5KE15AHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE15AHE3_B/C 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 1.5KE15AHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1.5KE15AHE3_B/C?
All 1.5KE15AHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE15AHE3_B/C, 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 1.5KE15AHE3_B/C part is unused and in its original packaging.
Return procedure for 1.5KE15AHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE15AHE3_B/C Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
