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Vishay General Semiconductor - Diodes Division 1.5KE16CHE3/73
- Part No.:
- 1.5KE16CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE16CHE3/73.pdf
- Description:
- TVS DIODE 12.9VWM 23.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,888
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Product details
Overview
1.5KE16CHE3/73 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 and automotive electronics.
For engineers reviewing the 1.5KE16CHE3/73 datasheet, 1.5KE16CHE3/73 pinout, 1.5KE16CHE3/73 application, or 1.5KE16CHE3/73 equivalent, this part delivers verified transient suppression performance for 12 V–15 V DC systems requiring AEC-Q101-qualified reliability, low clamping ratio (VC/VBR ≈ 1.49), and RoHS-compliant matte tin-plated leads solderable per J-STD-002.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 µA leakage at 13.6 V), but triggers into low-impedance conduction within <1 ns when transients exceed VBR, diverting surge current away from downstream components. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low temperature coefficient (0.086 %/°C).
The 1.5KE16CHE3/73 uses a DO-201AE (Case Style 1.5KE) axial package with cathode band marking, rated for TJ = –55 °C to +175 °C operation and capable of absorbing 200 A non-repetitive forward surge (8.3 ms half-sine) - enabling robust protection in motor drive control, power supply input stages, and CAN/LIN bus line conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 15.2 V / 16.8 V at 1.0 mA - defines precise clamping onset threshold for 12 V nominal systems |
| VWM | 13.6 V - maximum continuous reverse voltage before leakage exceeds 1.0 µA; sets safe operating margin below VBR |
| VC @ IPPM | 22.5 V at 66.7 A - limits protected circuit voltage during 1500 W transient, enabling 3.3 V/5 V IC survival |
| PPPM | 1500 W (10/1000 µs) - sustains lightning-induced surges per IEC 61000-4-5 Level 4 without degradation |
| IFSM | 200 A (8.3 ms half-sine) - handles inrush and fault currents in power supply front-ends |
| TJ max. | +175 °C - supports under-hood automotive placement and high-ambient industrial environments |
| RθJL | 15.4 °C/W - enables thermal design with short lead heatsinking; critical for repetitive surge duty |
Pinout & Package
Package: DO-201AE (Case Style 1.5KE), axial leaded, molded epoxy body meeting UL 94 V-0; cathode indicated by color band; matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to system ground or low-side return path in unidirectional clamp configuration |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line (e.g., 12 V rail); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures ±5% VBR tolerance and stable long-term leakage performance across –55 °C to +175 °C |
| 1500 W peak pulse power | Withstands 10/1000 µs surges up to 66.7 A - meets IEC 61000-4-5 Ed. 3, Level 4 immunity requirements |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units and body electronics per stress test protocol |
| Low clamping ratio (VC/VBR ≈ 1.49) | Minimizes overvoltage stress on downstream 16 V-rated components during transient events |
| RoHS-compliant matte tin plating | Enables lead-free reflow and wave soldering per JESD 22-B102; passes JESD 201 class 1A whisker test |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Shunt TVS placed between VBAT and GND upstream of LDO/regulator; clamps within <1 ns. Use Value: Limits voltage to ≤22.5 V during 100 V/500 ms transients, preventing damage to 3.3 V microcontrollers and CAN transceivers. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS on signal line referenced to local ground; suppresses ±8 kV contact ESD per IEC 61000-4-2. Use Value: Clamps induced transients to <25 V, preserving ADC input integrity and avoiding latch-up in op-amp front-ends. |
| DC Power Supply Input Stage | MOSFET Gate Driver Protection |
Use Scenario: Safeguarding AC/DC adapter secondary-side outputs against surge coupling from primary side or external surges. IC Role / Device Role / Timing Role: Primary-side TVS on +15 V output rail; absorbs 1500 W pulses without failure. Use Value: Maintains regulated output stability during 1 kV ring wave tests, eliminating need for redundant filtering or derating. | Use Scenario: Preventing gate oxide rupture in high-side N-channel MOSFETs driven by isolated gate drivers. IC Role / Device Role / Timing Role: TVS between gate and source pins; clamps Miller-induced spikes during fast switching transitions. Use Value: Limits gate-source voltage to ≤22.5 V, ensuring reliable operation at 100 kHz PWM with <10 ns rise times. |
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 (smaller footprint), lower PPPM = 600 W, VC = 26.0 V @ 23.1 A | Preferred for space-constrained PCBs; insufficient for IEC 61000-4-5 Level 4 | Select SMBJ16A only when board area is critical and surge energy is limited to <600 W. |
| 1.5KE16A-E3/54 | Same DO-201AE package and electrical specs, but commercial-grade (non-AEC-Q101) and tape-and-reel delivery mode differs (54 vs. 73) | Acceptable for non-automotive industrial use; lacks automotive qualification documentation | Choose 1.5KE16A-E3/54 for cost-sensitive consumer or computing applications where AEC-Q101 is not required. |
Compared with SMBJ16A and 1.5KE16A-E3/54, the 1.5KE16CHE3/73 uniquely combines AEC-Q101 qualification, 1500 W surge capacity, and standardized 73-tape packaging - making it the only option validated for under-hood automotive deployment with full IEC 61000-4-5 compliance.
Availability
1.5KE16CHE3/73 is available at Aetrix Electronics and suitable for automotive power rail 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 1.5KE16CHE3/73 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 engineered for harsh-environment operation.
The 1.5KE series was developed specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure - emphasizing AEC-Q101 qualification, tight VBR tolerance, and repeatable clamping performance under thermal stress.
FAQ
What is the breakdown voltage range of the 1.5KE16CHE3/73?
The 1.5KE16CHE3/73 has a guaranteed breakdown voltage (VBR) range of 15.2 V to 16.8 V at a test current of 1.0 mA, measured per JEDEC standard. This tight ±5% tolerance ensures predictable clamping behavior in 12 V systems and allows accurate margining against downstream component voltage ratings. The value is confirmed in Vishay's official datasheet document 88301, revision 09-Aug-2022.
Is the 1.5KE16CHE3/73 AEC-Q101 qualified?
Yes, the 1.5KE16CHE3/73 is AEC-Q101 qualified - explicitly stated in the "RATINGS AND CHARACTERISTICS CURVES" section of the Vishay datasheet (document 88301, note 2). The "HE3" suffix denotes RoHS compliance and AEC-Q101 qualification, covering devices from 1.5KE6.8AHE3_B through 1.5KE220AHE3_B. This makes the 1.5KE16CHE3/73 suitable for automotive powertrain and chassis modules.
What is the clamping voltage of the 1.5KE16CHE3/73 at its rated peak pulse current?
The 1.5KE16CHE3/73 clamps to a maximum of 22.5 V at its rated peak pulse current (IPPM) of 66.7 A, using the standard 10/1000 µs waveform. This clamping voltage is measured per JEDEC test conditions and reflects worst-case device behavior under surge stress. It directly determines the maximum overvoltage imposed on protected circuitry during transient events.
What package type does the 1.5KE16CHE3/73 use, and how is polarity marked?
The 1.5KE16CHE3/73 uses the DO-201AE axial package (Case Style 1.5KE), with leads spaced 0.375" (9.5 mm) apart. Polarity is marked by a cathode band on the body - the banded end is the cathode terminal, which connects to the protected line in unidirectional configurations. This marking aligns with JEDEC standard DO-201AE mechanical drawings in the Vishay datasheet.
Does the 1.5KE16CHE3/73 have a specified thermal resistance, and why does it matter?
Yes, the 1.5KE16CHE3/73 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, per the "THERMAL CHARACTERISTICS" table in the Vishay datasheet. This parameter is critical for estimating junction temperature rise during repetitive surge events or high ambient conditions - enabling thermal design validation to ensure TJ remains ≤175 °C and prevent parametric drift or premature failure.
1.5KE16CHE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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
1.5KE16CHE3/73 FAQ
1.How can I place an order for 1.5KE16CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE16CHE3/73 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 1.5KE16CHE3/73 reliable?
The price and inventory of 1.5KE16CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE16CHE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE16CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE16CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE16CHE3/73?
1.5KE16CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE16CHE3/73 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 1.5KE16CHE3/73?
For technical support, including 1.5KE16CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE16CHE3/73 requirements.
6.How does Aetrix verify that 1.5KE16CHE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE16CHE3/73 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 1.5KE16CHE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE16CHE3/73?
All 1.5KE16CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE16CHE3/73, 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 1.5KE16CHE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE16CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE16CHE3/73 Tags
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