My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5SMC36AHE3/57T
- Part No.:
- 1.5SMC36AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC36AHE3/57T.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,281
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC36AHE3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 36 V breakdown voltage (VBR = 34.2–37.8 V at IT = 1.0 mA), 30.8 V stand-off voltage (VWM), clamps to ≤49.9 V at 30.1 A peak pulse current (IPPM), and delivers 1500 W peak pulse power with a 10/1000 µs waveform - ideal for safeguarding automotive ECUs, industrial sensor interfaces, and DC power rails against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5SMC36AHE3/57T datasheet, 1.5SMC36AHE3/57T pinout, 1.5SMC36AHE3/57T application, or 1.5SMC36AHE3/57T equivalent, this part offers AEC-Q101 qualification, MSL Level 1 moisture sensitivity, RoHS-compliant matte tin plating, and DO-214AB (SMC) package compatibility - critical for automotive-grade reliability, automated SMT assembly, and high-reliability industrial designs requiring validated transient suppression performance.
Technical Context
The 1.5SMC36AHE3/57T operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response time (<1 ps) and low incremental surge resistance. Its clamping behavior is defined by a tightly controlled VBR range (34.2–37.8 V) and low temperature coefficient (0.099 %/°C), ensuring stable protection threshold across operating temperatures from –65 °C to +150 °C.
It is rated for 200 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), dissipates 6.5 W under continuous operation at TA = 50 °C, and exhibits RθJA = 75 °C/W and RθJL = 15 °C/W thermal resistance - confirming suitability for PCB layouts with 8.0 mm × 8.0 mm copper pads per terminal per JEDEC standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 34.2 V / 37.8 V at IT = 1.0 mA - defines precise avalanche onset window for repeatable clamping |
| VWM | 30.8 V - maximum continuous reverse voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | ≤49.9 V at IPPM = 30.1 A - ensures protected ICs see sub-50 V stress during 10/1000 µs surge |
| PPPM | 1500 W - enables handling of high-energy transients without failure (0.01 % duty cycle) |
| IFSM | 200 A - supports survival of repetitive inductive kick events in motor drive or relay circuits |
| TJ max. | +150 °C - allows operation in under-hood automotive or high-ambient industrial environments |
| Package | SMC (DO-214AB) - standardized 2-pin surface-mount outline with cathode band marking |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected circuit ground or low-side return | Must be tied to lowest potential node in protected path to enable proper clamping action |
| Cathode | Current exit point in forward bias; connected to protected line (e.g., 36 V rail or signal) | Banded end - connects to line being protected; reverse-biased during normal operation, avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - supports ECU, ADAS, and body control module deployment |
| 1500 W peak pulse power (10/1000 µs) | Withstands high-energy transients common in 12 V/24 V vehicle systems and industrial PLC I/O modules |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients - critical for protecting sensitive gate drivers and ADC inputs |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free reflow without prebaking - reduces manufacturing cost and process complexity |
| Glass passivated chip junction | Ensures long-term stability and low leakage (<1.0 µA at VWM) across temperature and humidity stress |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 36 V battery-fed control modules (e.g., HVAC actuators, lighting controllers) from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp positive transients above 30.8 V. Use Value: Limits voltage seen by downstream LDOs and microcontrollers to ≤49.9 V during 30.1 A surges - preventing latch-up and permanent damage. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA current loops) and CAN transceiver I/O pins in factory automation sensors. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt ESD and fast transients before reaching precision op-amps or bus drivers. Use Value: Sub-50 V clamping preserves signal integrity and avoids false triggering in 3.3 V/5 V logic interfaces exposed to field wiring noise. |
| DC-DC Converter Input Protection | Telecom Power Supply Surge Suppression |
|
Use Scenario: Input-stage protection for isolated 36 V input buck converters used in PoE-powered edge devices and IoT gateways. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of input filter capacitors and controller ICs. Use Value: Absorbs 1500 W surge energy without degradation, maintaining converter uptime during lightning-induced AC/DC supply spikes. |
Use Scenario: Secondary-side transient suppression on 48 V telecom rectifier outputs feeding base station radios and remote radio units. IC Role / Device Role / Timing Role: Standoff-rated TVS on output bus to limit voltage excursions during hot-swap events or cable fault conditions. Use Value: 30.8 V VWM aligns with 48 V nominal systems derated for ripple; 49.9 V clamping prevents overvoltage shutdown of RF front-end ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/57T | Lower peak power rating (400 W vs. 1500 W); same VWM/VBR but higher clamping voltage (60.0 V) | Not suitable for high-energy surge environments (e.g., automotive load dump); limited to low-power signal lines | Select only when space constraints prohibit SMC footprint and surge energy is <500 W |
| 1.5KE36A | Through-hole DO-201 package; identical electrical specs but incompatible with SMT assembly and higher thermal resistance (RθJA ≈ 100 °C/W) | Requires manual or wave soldering; unsuitable for high-density automotive PCBs or automated production | Choose only for legacy through-hole designs or prototyping where rework tolerance is prioritized over production efficiency |
Compared with SMAJ36A-E3/57T and 1.5KE36A, the 1.5SMC36AHE3/57T uniquely combines AEC-Q101 qualification, 1500 W surge capacity, and SMC package - making it the only option among the three qualified for volume automotive SMT production with full transient immunity compliance.
Availability
1.5SMC36AHE3/57T is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power supply designs requiring stable component supply, AEC-Q101 validation, and high-reliability transient suppression.
Supply support for 1.5SMC36AHE3/57T 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, power handling, and automotive-grade qualification.
The 1.5SMC Series was developed specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness, AEC-Q101 compliance, and standardized SMC packaging are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC36AHE3/57T at its rated peak pulse current?
The 1.5SMC36AHE3/57T clamps to a maximum of 49.9 V at its rated peak pulse current of 30.1 A (10/1000 µs waveform). This value is measured under standard test conditions per JEDEC and ensures downstream components remain within safe operating voltage limits during surge events. The 1.5SMC36AHE3/57T achieves this with low incremental resistance, minimizing overshoot beyond the specified VC.
Is the 1.5SMC36AHE3/57T qualified for automotive use?
Yes, the 1.5SMC36AHE3/57T carries AEC-Q101 qualification, confirmed by Vishay's documentation and ordering code suffix "HE3". This certification validates its performance under temperature cycling, humidity bias, mechanical shock, and other stress tests required for automotive electronics. The 1.5SMC36AHE3/57T is approved for use in engine control units, body electronics, and ADAS subsystems.
What does the "HE3" suffix mean in 1.5SMC36AHE3/57T?
The "HE3" suffix in 1.5SMC36AHE3/57T indicates RoHS-compliant construction and AEC-Q101 qualification. "H" denotes AEC-Q101 compliance, "E3" specifies RoHS-compliant matte tin plating and commercial-grade reliability. This distinguishes it from non-automotive variants like "E3/57T" (RoHS only) or "HM3/57T" (halogen-free + AEC-Q101).
What is the maximum operating temperature for the 1.5SMC36AHE3/57T?
The 1.5SMC36AHE3/57T has a maximum junction temperature (TJ) of +150 °C and an operating ambient temperature range of –65 °C to +150 °C. Its thermal resistance values (RθJA = 75 °C/W, RθJL = 15 °C/W) are specified with 8.0 mm × 8.0 mm copper pads - enabling reliable operation in under-hood automotive or industrial enclosures without forced cooling.
How does the 1.5SMC36AHE3/57T differ from bidirectional TVS diodes like 1.5SMC36CA?
The 1.5SMC36AHE3/57T is unidirectional and protects against positive-going transients only, with polarity marked by a cathode band. In contrast, 1.5SMC36CA is bidirectional and suppresses both polarities symmetrically. The 1.5SMC36AHE3/57T offers lower leakage and tighter VBR tolerance than its bidirectional counterpart - making it preferred for DC power rail protection where polarity is fixed and leakage must be minimized.
1.5SMC36AHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 30.1A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC36AHE3/57T FAQ
1.How can I place an order for 1.5SMC36AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC36AHE3/57T 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 1.5SMC36AHE3/57T reliable?
The price and inventory of 1.5SMC36AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC36AHE3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC36AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC36AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC36AHE3/57T?
1.5SMC36AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC36AHE3/57T 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 1.5SMC36AHE3/57T?
For technical support, including 1.5SMC36AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC36AHE3/57T requirements.
6.How does Aetrix verify that 1.5SMC36AHE3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC36AHE3/57T 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 1.5SMC36AHE3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC36AHE3/57T?
All 1.5SMC36AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC36AHE3/57T, 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 1.5SMC36AHE3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC36AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC36AHE3/57T 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 …
