My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5KE36CHE3/54
- Part No.:
- 1.5KE36CHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE36CHE3/54.pdf
- Description:
- TVS DIODE 29.1VWM 52VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,913
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE36CHE3/54 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 34.2 V to 37.8 V breakdown voltage (VBR) at 1 mA, 30.8 V maximum standoff voltage (VWM), 49.9 V clamping voltage (VC) at 30.1 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 transients and inductive switching surges.
For engineers reviewing the 1.5KE36CHE3/54 datasheet, 1.5KE36CHE3/54 pinout, 1.5KE36CHE3/54 application, or 1.5KE36CHE3/54 equivalent, this device delivers verified clamping performance, AEC-Q101 qualification (HE3 suffix), RoHS-compliant matte tin-plated leads, and JEDEC-standard 1.5KE case packaging - critical for automotive, industrial, and telecom surge protection design validation.
Technical Context
This TVS diode operates as a silicon avalanche clamp, responding in <1 ns to transient overvoltages and limiting voltage excursions across protected nodes. Its unidirectional polarity uses a cathode band marking and exhibits low incremental surge resistance, enabling precise clamping within ±5% of specified VC under standardized 10/1000 µs pulses.
The 1.5KE36CHE3/54 integrates glass-passivated junction technology for stable thermal performance up to 175 °C junction temperature and supports repetitive surge duty cycles ≤0.01%. Its 75 °C/W junction-to-ambient thermal resistance and 15.4 °C/W junction-to-lead resistance define PCB layout constraints for sustained power dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 34.2 V to 37.8 V at 1 mA - defines minimum voltage at which avalanche conduction begins, ensuring reliable turn-on before downstream component damage |
| Standoff Voltage VWM | 30.8 V max - maximum continuous reverse operating voltage without significant leakage, compatible with 24 V nominal systems |
| Clamping Voltage VC | 49.9 V at 30.1 A IPPM - peak voltage seen by protected circuit during 10/1000 µs surge, limiting stress on 50 V-rated components |
| Peak Pulse Power PPPM | 1500 W - energy-handling capacity for single 1 ms transients, sufficient for IEC 61000-4-5 Level 4 compliance |
| Peak Pulse Current IPPM | 30.1 A - maximum surge current supported before clamping voltage exceeds specification, defining series fuse or trace sizing |
| Junction Temperature Range | –55 °C to +175 °C - enables operation in under-hood automotive and industrial environments without derating |
| Thermal Resistance RθJA | 75 °C/W - determines required copper area and via count for thermal management on standard FR-4 PCBs |
Pinout & Package
Package: JEDEC Case Style 1.5KE - molded epoxy body with matte tin-plated axial leads, UL 94 V-0 rated, 0.375" (9.5 mm) lead length, 0.042" (1.07 mm) lead diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or common return path; forms cathode-referenced clamping configuration |
| Cathode | Protected line input | Marked with color band; connects to supply rail or signal line requiring overvoltage protection |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 surge immunity testing up to 4 kV open-circuit voltage |
| 0.01 % repetitive duty cycle rating | Enables use in systems with frequent but non-continuous transient events such as motor drive commutation |
| RoHS-compliant, JESD 201 Class 2 whisker resistance | Guarantees solder joint reliability in high-vibration environments without tin whisker growth risk |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control modules from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and LDO input to clamp spikes above 40 V. Use Value: Limits voltage to ≤49.9 V during 30.1 A surges, preventing latch-up or gate oxide rupture in downstream regulators and microcontrollers. |
Use Scenario: Shielding analog outputs of pressure sensors in factory automation PLCs from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt fast transients before reaching op-amp signal conditioning stage. Use Value: Sub-1 ns response ensures clamping occurs before 100 ns rise-time ESD pulses propagate into precision front-end circuitry. |
| Telecom DC Power Feeding Protection | Consumer Device USB Port Surge Suppression |
Use Scenario: Safeguarding PoE-powered network switches against induced surges on 48 V DC feeding lines. IC Role / Device Role / Timing Role: Primary TVS on midspan injector output, coordinated with secondary MOV-based protection. Use Value: 1500 W rating handles combined lightning-induced surges per IEC 61643-21, maintaining system uptime during outdoor deployment. |
Use Scenario: Adding robustness to USB-C power delivery circuits in portable monitors against accidental hot-plug transients. IC Role / Device Role / Timing Role: Unidirectional clamp on VBUS line upstream of USB PD controller to prevent overvoltage lockout. Use Value: 30.8 V VWM allows full 20 V PD3.1 operation while clamping to 49.9 V - below absolute maximum ratings of common PD controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/52 | Lower PPPM (400 W), SMA package (surface-mount), 36 V VBR, 58.1 V VC at 6.9 A | Targeted for space-constrained PCBs where 1.5KE axial lead placement is impractical | Select when board real estate is limited and surge energy requirements are ≤400 W |
| 1.5KE36A-E3/54 | Same electrical specs and 1.5KE package, but commercial-grade (non-AEC-Q101 qualified) | Suitable for non-automotive industrial or consumer applications where qualification is not mandated | Choose for cost-sensitive designs where AEC-Q101 is unnecessary and HE3 suffix adds no value |
Compared with 1.5KE36CHE3/54, SMAJ36A-E3/52 trades peak power and through-hole mechanical robustness for compactness, while 1.5KE36A-E3/54 retains identical protection performance without automotive qualification - enabling selection based on environmental validation needs and mounting constraints.
Availability
1.5KE36CHE3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom infrastructure requiring stable component supply with AEC-Q101 assurance and long-lifecycle support.
Supply support for 1.5KE36CHE3/54 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments, emphasizing rugged packaging, repeatable clamping, and qualification-ready variants for mission-critical power and signal line protection.
FAQ
What is the clamping voltage of the 1.5KE36CHE3/54 under a 10/1000 µs surge?
The 1.5KE36CHE3/54 has a maximum clamping voltage (VC) of 49.9 V at 30.1 A peak pulse current with a 10/1000 µs waveform. This value is measured per JEDEC standards and reflects the actual voltage imposed on the protected circuit during worst-case surge conditions - critical for verifying compatibility with downstream component voltage tolerances.
Is the 1.5KE36CHE3/54 suitable for automotive applications?
Yes, the 1.5KE36CHE3/54 is AEC-Q101 qualified (indicated by the HE3 suffix) and rated for operation from –55 °C to +175 °C. It meets automotive requirements for transient suppression in engine control, body electronics, and ADAS sensor modules - validated for thermal cycling, humidity resistance, and mechanical shock per AEC-Q101 test plan.
How does the 1.5KE36CHE3/54 differ from the standard 1.5KE36A-E3/54?
The 1.5KE36CHE3/54 includes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas the 1.5KE36A-E3/54 is commercial-grade only. Both share identical electrical parameters (VBR, VWM, VC, PPPM), but the HE3 variant adds automotive reliability validation and enhanced lead finish robustness for high-vibration environments.
What is the standoff voltage rating for the 1.5KE36CHE3/54?
The 1.5KE36CHE3/54 has a maximum standoff voltage (VWM) of 30.8 V, meaning it remains in high-impedance state below this DC or RMS voltage level. This allows safe integration into 24 V systems with margin for ripple and tolerance drift, while ensuring rapid conduction once transients exceed the 34.2–37.8 V breakdown range.
Does the 1.5KE36CHE3/54 require heatsinking for normal operation?
No external heatsink is required for single-pulse or low-duty-cycle surge events. With a 75 °C/W junction-to-ambient thermal resistance and 6.5 W steady-state power dissipation limit, the 1.5KE36CHE3/54 relies on PCB copper area and lead conduction for thermal management - typical layouts with ≥1 cm² of 2 oz copper per lead meet thermal needs for intermittent surge duty.
1.5KE36CHE3/54 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 29.1V
- Voltage - Breakdown (Min):
- 32.4V
- Voltage - Clamping (Max) @ Ipp:
- 52V
- Current - Peak Pulse (10/1000µs):
- 28.8A
- 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
1.5KE36CHE3/54 FAQ
1.How can I place an order for 1.5KE36CHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE36CHE3/54 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 1.5KE36CHE3/54 reliable?
The price and inventory of 1.5KE36CHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE36CHE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE36CHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE36CHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE36CHE3/54?
1.5KE36CHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE36CHE3/54 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 1.5KE36CHE3/54?
For technical support, including 1.5KE36CHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE36CHE3/54 requirements.
6.How does Aetrix verify that 1.5KE36CHE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE36CHE3/54 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 1.5KE36CHE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE36CHE3/54?
All 1.5KE36CHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE36CHE3/54, 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 1.5KE36CHE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE36CHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE36CHE3/54 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 …
