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Vishay General Semiconductor - Diodes Division 1.5KE16HE3/54
- Part No.:
- 1.5KE16HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE16HE3/54.pdf
- Description:
- TVS DIODE 12.9VWM 23.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,442
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Product details
Overview
1.5KE16HE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a 16 V breakdown voltage (VBR = 15.2–16.8 V at 1.0 mA), 13.6 V maximum working voltage (VWM), 22.5 V clamping voltage (VC) at 66.7 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the 1.5KE16HE3/54 datasheet, 1.5KE16HE3/54 pinout, 1.5KE16HE3/54 application, or 1.5KE16HE3/54 equivalent, this part delivers verified AEC-Q101 qualification (HE3 suffix), RoHS-compliant matte tin-plated leads, JESD 201 Class 2 whisker resistance, and UL 94 V-0 molded epoxy packaging - critical for automotive-grade ESD and load-switch transient suppression where reliability under thermal stress and surge repetition is required.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: when reverse-biased 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 leakage (<1.0 µA at VWM) and repeatable clamping performance across temperature.
Thermal design relies on its 15.4 °C/W junction-to-lead thermal resistance and 75 °C/W junction-to-ambient rating, enabling effective heat dissipation through PCB copper pours or lead-frame mounting. The device sustains 200 A non-repetitive forward surge (8.3 ms half-sine) and maintains operation from –55 °C to +175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 15.2 V / 16.8 V at 1.0 mA - defines precise avalanche initiation threshold for accurate overvoltage trip point |
| VWM | 13.6 V - maximum continuous reverse operating voltage before leakage rises above 1.0 µA |
| VC @ IPPM | 22.5 V at 66.7 A - clamping voltage during 1500 W transient, limiting downstream voltage stress |
| PPPM | 1500 W - peak pulse power handling with 10/1000 µs waveform, suitable for IEC 61000-4-5 Level 4 surges |
| IFSM | 200 A - single half-sine surge current rating (8.3 ms), supports high-energy inductive switch-off events |
| TJ range | –55 °C to +175 °C - enables use in under-hood automotive, industrial motor drives, and outdoor power electronics |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with 0.375" lead length, UL 94 V-0 compliant epoxy body |
Pinout & Package
1.5KE16HE3/54 uses a 2-terminal axial-leaded DO-201AD package (Case Style 1.5KE). The cathode is marked by a color band on the body; polarity must be observed in series or parallel configurations for unidirectional clamping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for reverse-bias operation | Connected to system ground or low-side return path; forms shunt path during overvoltage |
| Cathode | High-side connection point | Connected to protected line (e.g., 12 V rail); color band identifies this terminal for correct orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance (±5 %) and low leakage (<1 µA) across temperature and lifetime |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units and body electronics per stress test requirements |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges up to 4 kV open-circuit / 2 kA short-circuit without degradation |
| UL 94 V-0 epoxy molding | Provides flame-retardant mechanical encapsulation essential for safety-critical industrial and transportation systems |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling, ensuring long-term solder joint integrity in harsh environments |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients (ISO 7637-2 Pulse 5a) and alternator ripple-induced spikes. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power rail and chassis ground, clamping within 1 ns to limit voltage to ≤22.5 V. Use Value: Prevents latch-up or gate oxide damage in microcontrollers and CAN transceivers during vehicle cranking or alternator field collapse. | Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in PLC modules exposed to relay-coil flyback noise. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-ground, cathode-to-signal line, absorbing ±1 kV EFT bursts per IEC 61000-4-4. Use Value: Maintains signal integrity below ADC input limits while surviving >100,000 surge events without parameter drift. |
| DC Power Supply Input Stage | MOSFET Gate Driver Protection |
Use Scenario: Secondary-side overvoltage clamp on 24 V industrial SMPS outputs subject to output capacitor failure or feedback loop loss. IC Role / Device Role / Timing Role: Standby protector across output terminals, activated only during fault conditions exceeding 13.6 V. Use Value: Limits fault voltage to 22.5 V, preventing damage to downstream regulators and enabling safe brownout recovery. | Use Scenario: Gate-source protection for N-channel power MOSFETs in motor H-bridge drivers subjected to shoot-through induced voltage spikes. IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF) TVS placed directly across gate and source pins to clamp dV/dt-induced ringing. Use Value: Suppresses gate oscillation above 16 V, avoiding false turn-on and reducing switching losses during PWM transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | DO-214AA package (SMB), lower 600 W PPPM, same VBR range (15.2–16.8 V), higher VC (26.0 V) | Suitable for space-constrained PCBs but requires derating for IEC 61000-4-5 Level 4 compliance | Select SMBJ16A only when board area is limited and surge energy is ≤600 W; verify layout thermal relief for sustained 6.5 W dissipation. |
| 1.5KE16A-E3/54 | Same 1.5KE package and electrical specs, but commercial-grade (non-AEC-Q101), no HE3 whisker qualification | Acceptable for consumer or industrial non-automotive use where extended temperature cycling and long-term whisker risk are not critical | Choose 1.5KE16A-E3/54 for cost-sensitive designs outside automotive qualification scope; avoid in under-hood or safety-critical systems. |
Compared with SMBJ16A and 1.5KE16A-E3/54, the 1.5KE16HE3/54 uniquely combines AEC-Q101 qualification, 1500 W surge capacity, and DO-201AD mechanical robustness - making it the only option among the three validated for automotive power rail protection requiring both high energy absorption and long-term reliability under thermal cycling.
Availability
1.5KE16HE3/54 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and DC power supply input-stage surge suppression requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE16HE3/54 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, thermal performance, and automotive qualification.
The 1.5KE family was engineered for high-energy transient suppression in demanding environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be mitigated without compromising response time or longevity.
FAQ
What is the breakdown voltage tolerance for 1.5KE16HE3/54?
The 1.5KE16HE3/54 has a specified breakdown voltage range of 15.2 V to 16.8 V at 1.0 mA test current, representing a ±5 % tolerance around the nominal 16 V rating. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage trip design in safety-critical circuits such as automotive power distribution modules where margin to downstream IC absolute maximum ratings is constrained.
Is 1.5KE16HE3/54 suitable for bidirectional transient suppression?
No, 1.5KE16HE3/54 is a unidirectional TVS diode and must be used with correct polarity - cathode connected to the protected line, anode to ground. For bidirectional protection, Vishay offers the 1.5KE16CA variant. Using 1.5KE16HE3/54 in reverse-biased AC applications would result in forward conduction and potential failure; always confirm polarity in schematic and layout for 1.5KE16HE3/54 placement.
What does the "HE3" suffix indicate in 1.5KE16HE3/54?
"HE3" denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. Specifically, "H" indicates AEC-Q101 qualification, "E3" confirms RoHS compliance and matte tin plating, and the "HE3" combination certifies suitability for automotive applications requiring extended temperature cycling, vibration endurance, and long-term solder joint reliability - distinguishing 1.5KE16HE3/54 from commercial-grade variants like 1.5KE16A-E3/54.
Can 1.5KE16HE3/54 be used in parallel to increase surge current handling?
Yes, multiple 1.5KE16HE3/54 devices can be paralleled to distribute surge current, but matching VBR (within ±1 %) and symmetrical PCB layout (equal trace inductance/resistance) are mandatory to ensure current sharing. Without matching, one device may absorb >80 % of the surge, leading to thermal runaway. Vishay recommends using a single higher-rated device (e.g., 1.5KE22HE3/54) instead of paralleling unless validated via surge testing with the exact 1.5KE16HE3/54 units in the target application.
What is the maximum allowable lead temperature during soldering for 1.5KE16HE3/54?
The maximum solder dip temperature for 1.5KE16HE3/54 is 275 °C for up to 10 seconds, per JESD 22-B106. Reflow profiles must comply with JEDEC J-STD-020 moisture sensitivity level (MSL) requirements - though this axial device is not moisture-sensitive, thermal shock from excessive localized heating can crack the epoxy body or delaminate the glass passivation. Always verify actual board-side temperature with thermocouple during process validation for 1.5KE16HE3/54 assembly.
1.5KE16HE3/54 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12.9V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.5V
- Current - Peak Pulse (10/1000µs):
- 63.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE16HE3/54 FAQ
1.How can I place an order for 1.5KE16HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE16HE3/54 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 1.5KE16HE3/54 reliable?
The price and inventory of 1.5KE16HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE16HE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE16HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE16HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE16HE3/54?
1.5KE16HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE16HE3/54 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 1.5KE16HE3/54?
For technical support, including 1.5KE16HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE16HE3/54 requirements.
6.How does Aetrix verify that 1.5KE16HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE16HE3/54 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 1.5KE16HE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE16HE3/54?
All 1.5KE16HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE16HE3/54, 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 1.5KE16HE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE16HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE16HE3/54 Tags
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