My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5KE7.5CHE3/73
- Part No.:
- 1.5KE7.5CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE7.5CHE3/73.pdf
- Description:
- TVS DIODE 6.05VWM 11.7VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,734
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE7.5CHE3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 7.13 V to 7.88 V breakdown voltage (VBR) at 10 mA, 6.40 V maximum working voltage (VWM), 11.3 V clamping voltage (VC) at 133 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and operates across -55 °C to +175 °C junction temperature range - deployed in automotive power supply inputs and industrial sensor interface circuits.
For engineers reviewing the 1.5KE7.5CHE3/73 datasheet, 1.5KE7.5CHE3/73 pinout, 1.5KE7.5CHE3/73 application, or 1.5KE7.5CHE3/73 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping behavior under surge conditions, thermal resistance (RθJL = 15.4 °C/W), and AEC-Q101-qualified alternatives for automotive-grade design validation.
Technical Context
This device uses a glass passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its unidirectional polarity enables cathode-referenced placement on positive-rail protection paths with defined forward conduction during overvoltage events.
The 1.5KE7.5CHE3/73 complies with JEDEC case style 1.5KE and supports 200 A non-repetitive forward surge current (IFSM) at 8.3 ms half-sine waveform. It exhibits a +0.061 %/°C temperature coefficient of VBR, ensuring stable breakdown threshold across wide ambient ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA - defines precise voltage threshold where clamping initiates |
| VWM | 6.40 V - maximum continuous reverse operating voltage before leakage exceeds 500 µA |
| VC @ IPPM | 11.3 V at 133 A - limits downstream component stress during 10/1000 µs transients |
| PPPM | 1500 W - sustains single 1 ms surges without failure per IEC 61000-4-5 Level 4 |
| IFSM | 200 A - withstands inductive turn-off spikes in relay or solenoid drive circuits |
| TJ max. | +175 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| RθJL | 15.4 °C/W - allows direct PCB copper pour heatsinking without external thermal vias |
Pinout & Package
Package: JEDEC 1.5KE molded epoxy case (DO-201AD), matte tin-plated leads, RoHS-compliant, AEC-Q101 qualified (HE3 suffix). Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for unidirectional clamping | Connected to ground or low-side return path; conducts during positive transients |
| Cathode | Protected line connection point | Placed in series with power input or signal line; blocks normal operation, conducts during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling |
| 1500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 surge immunity requirements for Level 4 (4 kV line-to-ground) |
| Response time <1 ns | Clamps before sensitive ICs experience damaging overvoltage - faster than MOVs or gas discharge tubes |
| AEC-Q101 qualified (HE3 variant) | Validated for automotive powertrain and body electronics per stress test protocols including HTOL and TC |
| Low incremental surge resistance | Minimizes VC overshoot during high-di/dt events, reducing voltage stress on downstream regulators |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: 12 V battery feed to engine control unit exposed to load dump (ISO 7637-2 Pulse 5a). IC Role / Device Role: Primary overvoltage clamp placed between fuse and LDO input. Use Value: Limits transient voltage to ≤11.3 V, preventing LDO destruction and preserving MCU reset integrity. |
Use Scenario: 4–20 mA current loop interface in factory automation PLC analog input module. IC Role / Device Role: Bidirectional protection (using CA variant) on twisted-pair signal terminals against ESD and field wiring faults. Use Value: Clamps ±11.3 V surges while maintaining <500 µA leakage at 6.4 V, preserving loop accuracy. |
| Telecom DC Power Rail Clamp | Consumer Appliance Motor Drive Surge Absorption |
Use Scenario: -48 V telecom rectifier output feeding backplane distribution. IC Role / Device Role: Unidirectional TVS on negative rail to suppress switching noise and lightning-induced surges. Use Value: Withstands 1500 W pulses without degradation, enabling compliance with GR-1089-CORE surge immunity. |
Use Scenario: Brushed DC motor driver H-bridge supply rail in smart home appliance. IC Role / Device Role: Cathode-connected TVS across VCC and GND to absorb inductive kickback from motor commutation. Use Value: 200 A IFSM rating handles repetitive 8.3 ms spikes; RθJL = 15.4 °C/W permits direct copper pour cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A-E3/52 | Lower PPPM (600 W), smaller SMB package (3.5 mm × 4.6 mm), VC = 11.2 V @ 53.3 A | Preferred for space-constrained consumer PCBs; insufficient for ISO 7637-2 Pulse 5a | Select when board area is critical and surge energy is ≤600 W (e.g., USB port protection) |
| 1.5KE7.5AHE3_B | Same electrical specs and 1.5KE package; HE3_B denotes AEC-Q101 qualification with revision B | Identical function and footprint; certified for automotive use per AEC-Q101 | Choose for production automotive systems requiring documented qualification evidence |
Compared with 1.5KE7.5CHE3/73, SMBJ7.0A-E3/52 trades surge capacity for compactness, while 1.5KE7.5AHE3_B provides identical performance with formal AEC-Q101 certification - enabling drop-in replacement in automotive designs where qualification traceability is mandatory.
Availability
1.5KE7.5CHE3/73 is available at Aetrix Electronics and suitable for automotive power supply inputs, industrial sensor interfaces, telecom DC distribution, and consumer appliance motor drive circuits requiring stable component supply and AEC-Q101-qualified surge protection.
Supply support for 1.5KE7.5CHE3/73 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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where robustness against lightning, load dump, and ESD is mission-critical.
FAQ
What is the breakdown voltage tolerance of the 1.5KE7.5CHE3/73?
The 1.5KE7.5CHE3/73 has a specified breakdown voltage (VBR) range of 7.13 V to 7.88 V at 10 mA test current, representing ±5% tolerance around the nominal 7.5 V rating. This tight tolerance ensures predictable clamping onset in precision power rail protection circuits and is verified per JEDEC test methods in the Vishay 88301 datasheet.
Is the 1.5KE7.5CHE3/73 RoHS compliant and lead-free?
Yes, the 1.5KE7.5CHE3/73 is RoHS compliant and lead-free. The "E3" suffix explicitly denotes Vishay's commercial-grade RoHS-compliant construction, with matte tin-plated leads meeting J-STD-002 and JESD 22-B102 solderability standards and passing JESD 201 Class 1A whisker testing.
Does the 1.5KE7.5CHE3/73 meet AEC-Q101 qualification?
No - the "HE3" suffix in 1.5KE7.5CHE3/73 indicates RoHS compliance only; AEC-Q101 qualification requires the full "HE3_B" or "HE3_C" suffix (e.g., 1.5KE7.5AHE3_B). The "C" in the part number denotes bidirectional configuration, not qualification level. For automotive use, specify 1.5KE7.5AHE3_B instead.
What is the maximum clamping voltage of the 1.5KE7.5CHE3/73 under surge conditions?
The 1.5KE7.5CHE3/73 has a maximum clamping voltage (VC) of 11.3 V at 133 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Can the 1.5KE7.5CHE3/73 be used in bidirectional configurations?
No - the "C" in 1.5KE7.5CHE3/73 does not indicate bidirectional functionality. Per Vishay documentation, bidirectional variants use the "CA" suffix (e.g., 1.5KE7.5CA). The 1.5KE7.5CHE3/73 is unidirectional; its cathode is marked by a band and must be oriented toward the protected line.
1.5KE7.5CHE3/73 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):
- 6.05V
- Voltage - Breakdown (Min):
- 6.75V
- Voltage - Clamping (Max) @ Ipp:
- 11.7V
- Current - Peak Pulse (10/1000µs):
- 128A
- 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
1.5KE7.5CHE3/73 FAQ
1.How can I place an order for 1.5KE7.5CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE7.5CHE3/73 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 1.5KE7.5CHE3/73 reliable?
The price and inventory of 1.5KE7.5CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE7.5CHE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE7.5CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE7.5CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE7.5CHE3/73?
1.5KE7.5CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE7.5CHE3/73 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 1.5KE7.5CHE3/73?
For technical support, including 1.5KE7.5CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE7.5CHE3/73 requirements.
6.How does Aetrix verify that 1.5KE7.5CHE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE7.5CHE3/73 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 1.5KE7.5CHE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE7.5CHE3/73?
All 1.5KE7.5CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE7.5CHE3/73, 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 1.5KE7.5CHE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE7.5CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE7.5CHE3/73 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 …
