My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM6T36CAHE3_A/I
;;2.jpg)
- Part No.:
- SM6T36CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T36CAHE3_A/I.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,267
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM6T36CAHE3_A/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping ESD and surge transients on signal/power lines. It features 36 V standoff voltage (VWM), 49.9 V max clamping voltage at 12 A IPPM, 600 W peak pulse power (10/1000 μs), and AEC-Q101 qualification for automotive use.
For engineers reviewing the SM6T36CAHE3_A/I datasheet, SM6T36CAHE3_A/I pinout, SM6T36CAHE3_A/I application, or SM6T36CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (1.39), RoHS-compliant + AEC-Q101 qualified construction, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with breakdown voltage (VBR) of 38.0–42.0 V at 1 mA test current and clamping action triggered above 36 V reverse standoff. Its glass-passivated junction ensures stable leakage (<1 μA at VWM) and robust surge handling up to 12 A (10/1000 μs).
Thermal design relies on RθJA = 100 °C/W and RθJL = 20 °C/W, enabling operation from –65 °C to +150 °C junction temperature. The device meets MSL Level 1 (260 °C reflow peak) and supports high-reliability automotive applications via AEC-Q101 qualification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 38.0 V / 42.0 V at 1 mA - Ensures consistent breakdown threshold across production lots |
| VC @ IPPM | 49.9 V at 12.0 A (10/1000 μs) - Limits downstream voltage stress during surge events |
| PPPM | 600 W - Withstands industrial-grade lightning/surge transients per IEC 61000-4-5 |
| ID @ VWM | <1 μA - Minimizes standby power loss and signal integrity impact |
| TJ max | +150 °C - Supports under-hood automotive environments without derating |
| Package | SMB (DO-214AA) - Standardized surface-mount footprint compatible with IPC-7351B |
Pinout & Package
Package: SMB (DO-214AA), molded case with matte tin-plated leads, UL 94 V-0 rated compound, 0.220" × 0.130" body dimensions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Anode) | Bidirectional terminal | No polarity marking; terminals are functionally identical for symmetrical clamping |
| Anode (Cathode) | Bidirectional terminal | Same as above - enables protection of AC-coupled or floating signal lines without orientation constraints |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Protects against IEC 61000-4-5 Level 3 surges (1 kV source impedance) on 12 V automotive buses |
| AEC-Q101 qualified | Validated for automotive powertrain and ADAS modules requiring zero defect reliability over 15-year service life |
| Low clamping ratio (VC/VWM = 1.39) | Minimizes voltage overshoot during fast transients, preserving margin for 3.3 V/5 V logic interfaces |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free assembly without moisture sensitivity concerns or baking requirements |
| Glass passivated junction | Ensures stable leakage current and long-term parameter stability under thermal cycling and humidity stress |
Applications
| Automotive CAN Bus Protection | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L differential pair in vehicle body control modules from load dump and ESD. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector interface to shunt transients before reaching transceiver. Use Value: Maintains CAN signal integrity by limiting common-mode voltage excursion to ≤49.9 V during 12 A surge, preventing transceiver latch-up. | Use Scenario: Safeguarding analog outputs (4–20 mA, 0–10 V) of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) transient clamp on sensor output line, mounted adjacent to connector. Use Value: Prevents measurement drift and ADC saturation during 600 W surges induced by nearby motor contactors switching. |
| USB Type-C Port ESD Protection | DC Power Input Stage (12–24 V) |
Use Scenario: Secondary-level ESD protection for USB-C CC, SBU, and VCONN lines in automotive infotainment head units. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) bidirectional clamp co-located with connector to absorb ±15 kV HBM ESD. Use Value: Clamps ESD pulses below 50 V within 1 ns, protecting USB-C controller I/O pins rated for only 6 V absolute maximum. | Use Scenario: Input-stage surge suppression for 24 V DC power supplies feeding ADAS cameras or radar modules. IC Role / Device Role / Timing Role: Primary transient limiter placed after fuse but before DC-DC converter input capacitor. Use Value: Absorbs 600 W load-dump energy (ISO 7637-2 Pulse 5a) while maintaining <1 μA quiescent leakage to avoid battery drain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36CA | Same VWM (36 V) and VC (49.9 V), but 400 W PPPM rating and SMA package (higher RθJA = 150 °C/W) | Limited to lower-energy transients; unsuitable for AEC-Q101 automotive systems | Select when cost sensitivity outweighs automotive qualification and surge margin requirements |
| 1.5KE36CA | Higher PPPM (1500 W), DO-201 package (axial leaded), VWM = 36 V, VC = 58.1 V | Through-hole mounting only; higher clamping voltage reduces system-level protection margin | Choose for legacy through-hole designs where board space allows larger package and higher clamping is acceptable |
Compared with SMAJ36CA and 1.5KE36CA, SM6T36CAHE3_A/I delivers superior automotive reliability (AEC-Q101), tighter clamping (49.9 V vs. 58.1 V), and optimized SMT manufacturability in SMB footprint-making it the preferred choice for new automotive and industrial SMT designs demanding high surge immunity.
Availability
SM6T36CAHE3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, USB-C port protection, and 12–24 V DC power input stages requiring stable component supply and AEC-Q101 compliance.
Supply support for SM6T36CAHE3_A/I 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The SM6T Series is engineered specifically for high-reliability transient suppression in automotive, industrial, and telecom infrastructure-balancing low clamping voltage, robust surge handling, and AEC-Q101 validation in compact SMB packages.
FAQ
What is the clamping voltage of SM6T36CAHE3_A/I at its rated peak pulse current?
The SM6T36CAHE3_A/I has a maximum clamping voltage (VC) of 49.9 V when subjected to a 10/1000 μs waveform peak pulse current (IPPM) of 12.0 A. This value is measured under standardized test conditions per JEDEC standards and reflects the upper limit of voltage seen by protected circuitry during worst-case surge events.
Is SM6T36CAHE3_A/I suitable for automotive applications?
Yes, SM6T36CAHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use, as indicated by the "HE3" suffix and documentation in Vishay's official datasheet (Document Number: 88385). It supports under-hood and cabin applications including CAN bus, sensor interfaces, and power input stages.
What does the "CA" suffix in SM6T36CAHE3_A/I signify?
The "CA" suffix in SM6T36CAHE3_A/I denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SM6T36A), it has no polarity marking and functions identically regardless of voltage polarity applied across its terminals.
What is the thermal resistance from junction to ambient for SM6T36CAHE3_A/I?
The SM6T36CAHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes standard PCB layout per Vishay's recommended pad dimensions and is critical for calculating safe power dissipation limits at elevated ambient temperatures.
Does SM6T36CAHE3_A/I require orientation during PCB placement?
No, SM6T36CAHE3_A/I does not require specific orientation during PCB placement because it is a bidirectional TVS diode. The device has no cathode band or polarity marking, and its electrical behavior is identical in both directions-enabling simplified layout and reduced assembly errors in high-volume SMT production.
SM6T36CAHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 12A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBJ)
SM6T36CAHE3_A/I FAQ
1.How can I place an order for SM6T36CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T36CAHE3_A/I 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 SM6T36CAHE3_A/I reliable?
The price and inventory of SM6T36CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T36CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SM6T36CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T36CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T36CAHE3_A/I?
SM6T36CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T36CAHE3_A/I 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 SM6T36CAHE3_A/I?
For technical support, including SM6T36CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T36CAHE3_A/I requirements.
6.How does Aetrix verify that SM6T36CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SM6T36CAHE3_A/I 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 SM6T36CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SM6T36CAHE3_A/I?
All SM6T36CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T36CAHE3_A/I, 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 SM6T36CAHE3_A/I part is unused and in its original packaging.
Return procedure for SM6T36CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T36CAHE3_A/I 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 …
