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Vishay General Semiconductor - Diodes Division 1.5KE30CHE3/73
- Part No.:
- 1.5KE30CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE30CHE3/73.pdf
- Description:
- TVS DIODE 24.3VWM 43.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,104
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Product details
Overview
1.5KE30CHE3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power rails and signal lines. It features a 30 V breakdown voltage (VBR = 28.5–31.5 V at 1.0 mA), 1500 W peak pulse power (10/1000 µs), clamping voltage of 41.4 V at 36.2 A, and operates across –55 °C to +175 °C junction temperature. It is used in automotive power supply inputs and industrial motor drive control circuits to protect MOSFETs and microcontrollers from inductive switching transients.
For engineers reviewing the 1.5KE30CHE3/73 datasheet, 1.5KE30CHE3/73 pinout, 1.5KE30CHE3/73 application, or 1.5KE30CHE3/73 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), and real-world clamping behavior under standardized surge waveforms - all critical for ESD and lightning transient design validation.
Technical Context
This device uses a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its unidirectional polarity enables cathode-referenced clamping on positive-going transients, with VF = 3.5 V at 100 A forward surge current - critical for minimizing conduction loss during fault events.
The 1.5KE30CHE3/73 is rated for 1500 W peak pulse power per 10/1000 µs waveform at TA = 25 °C and derates linearly above 25 °C per Fig. 2; its 6.5 W steady-state power dissipation (PD) and RθJL = 15.4 °C/W support lead-mounted thermal management without heatsinking in moderate-duty applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V at 1.0 mA - defines precise clamping onset threshold for reliable overvoltage detection |
| VWM | 25.6 V - maximum continuous reverse working voltage; ensures no leakage conduction below system operating rail |
| VC @ IPPM | 41.4 V at 36.2 A - actual clamped voltage during 1500 W surge; determines protected IC's maximum stress level |
| IPPM | 36.2 A - peak pulse current capability under 10/1000 µs waveform; sets minimum surge current handling margin |
| PPPM | 1500 W - standardized surge energy absorption capacity; validates compliance with IEC 61000-4-5 Level 3/4 |
| TJ max | +175 °C - high-temperature operation enables use in engine bay or industrial enclosures without derating |
| RθJA | 75 °C/W - thermal resistance from junction to ambient; informs board layout and copper pour requirements |
Pinout & Package
Package: JEDEC Case Style 1.5KE - molded epoxy body with matte tin-plated leads; RoHS-compliant, AEC-Q101 qualified (HE3 suffix), UL 94 V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or return path; establishes clamping reference for positive transients on cathode side |
| Cathode | Protected line input | Connected to power rail or signal line; absorbs surge energy by conducting to anode when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable VBR tolerance (±5 %) and long-term reliability under thermal cycling and humidity stress |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 4 kV surge immunity testing without external series impedance |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements (HTOL, TC, HTRB) |
| Fast response time < 1 ns | Clamps before sensitive logic or analog circuitry experiences damaging overvoltage - critical for MCU I/O protection |
| Low incremental surge resistance | Minimizes voltage overshoot during rapid current rise; improves clamping predictability under real-world transients |
Applications
| Automotive Power Input Protection | Industrial Motor Drive Control |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input to clamp transients up to 35 V. Use Value: Limits voltage seen by downstream regulators to ≤41.4 V during 36.2 A surges, preventing latch-up or gate oxide damage. |
Use Scenario: Gate driver supply rail in 3-phase inverter modules subject to cross-conduction spikes. IC Role / Device Role / Timing Role: Clamping diode on isolated 15 V gate supply to suppress Miller-induced voltage spikes. Use Value: Responds in <1 ns to clamp 100 V/µs dv/dt events, maintaining gate voltage integrity during fast switching transitions. |
| Telecom Line Interface Protection | Consumer Appliance Power Supply |
Use Scenario: AC/DC adapter input stage connected to mains via long cables susceptible to induced lightning surges. IC Role / Device Role / Timing Role: Primary-level TVS on bridge rectifier output to absorb differential-mode surges. Use Value: Absorbs 1500 W pulses without degradation, meeting ITU-T K.20 and GR-1089-CORE Level 3 requirements. |
Use Scenario: Secondary-side 5 V rail in smart home appliances exposed to relay contact bounce and transformer ringing. IC Role / Device Role / Timing Role: Low-capacitance TVS on microcontroller VDD line to suppress sub-100 ns ringing. Use Value: Clamps 30 V transients to 41.4 V within 1 ns, protecting 3.3 V/5 V logic without adding signal distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A | Lower PPPM (600 W), smaller SMB package (RθJA = 110 °C/W), same VBR range | Not AEC-Q101 qualified; limited to consumer/industrial PCB space-constrained designs | Select SMBJ30A only if surge requirement is ≤600 W and thermal budget allows higher junction temperature rise. |
| 1.5KE30A-E3/54 | Same electrical specs and 1.5KE package, but commercial-grade (non-AEC-Q101) and E3-only (no HE3 suffix) | Lacks automotive qualification; suitable for cost-sensitive non-automotive applications with identical form factor | Choose 1.5KE30A-E3/54 when AEC-Q101 is not required and traceability to revision B is unnecessary. |
Compared with SMBJ30A and 1.5KE30A-E3/54, the 1.5KE30CHE3/73 uniquely combines AEC-Q101 qualification, 1500 W surge rating, and JEDEC 1.5KE mechanical compatibility - making it the only option for automotive-grade high-energy clamping where revision-controlled sourcing and thermal robustness are mandatory.
Availability
1.5KE30CHE3/73 is available at Aetrix Electronics and suitable for automotive power systems, industrial motor drives, telecom infrastructure, and consumer appliance designs requiring stable component supply, full revision traceability (HE3_B), and AEC-Q101 compliance.
Supply support for 1.5KE30CHE3/73 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, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1.5KE family was engineered for high-energy transient suppression in harsh environments, targeting applications demanding proven surge endurance, wide temperature operation, and automotive qualification - not just generic voltage clamping.
FAQ
What is the exact breakdown voltage range for 1.5KE30CHE3/73?
The 1.5KE30CHE3/73 has a guaranteed breakdown voltage range of 28.5 V to 31.5 V at a test current of 1.0 mA, per Vishay Document 88301. This tight ±5 % tolerance ensures predictable clamping onset across production lots and temperature extremes, directly supporting compliance with ISO 16750-2 load-dump test criteria. The 1.5KE30CHE3/73 maintains this specification under full AEC-Q101 qualification conditions.
Is 1.5KE30CHE3/73 AEC-Q101 qualified, and what does the 'HE3' suffix indicate?
Yes, the 1.5KE30CHE3/73 is AEC-Q101 qualified, as confirmed in Vishay Document 88301 Section "RATINGS AND CHARACTERISTICS CURVES" Note (2). The 'HE3' suffix denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. The '73' indicates tape-and-reel packaging per 13" diameter reel with 1400 units - a revision-controlled configuration validated for automotive production use.
What is the clamping voltage of 1.5KE30CHE3/73 under maximum surge conditions?
The 1.5KE30CHE3/73 clamps to 41.4 V at its peak pulse current of 36.2 A, measured using the standardized 10/1000 µs waveform. This value is not extrapolated - it is the maximum measured VC from Vishay's production test data in Document 88301 Table "ELECTRICAL CHARACTERISTICS". That clamping level ensures downstream 3.3 V or 5 V logic remains within safe operating area during worst-case transients.
Can 1.5KE30CHE3/73 be used in bidirectional configurations?
No, the 1.5KE30CHE3/73 is a unidirectional TVS diode - indicated by the absence of 'CA' in its part number. Bidirectional variants (e.g., 1.5KE30CAHE3/B) exist in the same family but have different internal construction and polarity marking. Using the 1.5KE30CHE3/73 in bidirectional applications would result in forward conduction on negative transients, causing failure. Always match polarity to circuit topology.
What is the thermal resistance and maximum junction temperature of 1.5KE30CHE3/73?
The 1.5KE30CHE3/73 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and a maximum junction temperature (TJ) of +175 °C, per Vishay Document 88301 "THERMAL CHARACTERISTICS" table. These values enable operation in under-hood automotive environments and sealed industrial enclosures without active cooling, provided PCB copper area meets minimum pad recommendations in the package outline.
1.5KE30CHE3/73 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):
- 24.3V
- Voltage - Breakdown (Min):
- 27V
- Voltage - Clamping (Max) @ Ipp:
- 43.5V
- Current - Peak Pulse (10/1000µs):
- 34.5A
- 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
1.5KE30CHE3/73 FAQ
1.How can I place an order for 1.5KE30CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE30CHE3/73 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 1.5KE30CHE3/73 reliable?
The price and inventory of 1.5KE30CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE30CHE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE30CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE30CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE30CHE3/73?
1.5KE30CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE30CHE3/73 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 1.5KE30CHE3/73?
For technical support, including 1.5KE30CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE30CHE3/73 requirements.
6.How does Aetrix verify that 1.5KE30CHE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE30CHE3/73 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 1.5KE30CHE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE30CHE3/73?
All 1.5KE30CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE30CHE3/73, 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 1.5KE30CHE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE30CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE30CHE3/73 Tags
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