My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM6T15CAHE3_B/H
- Part No.:
- SM6T15CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T15CAHE3_B/H.pdf
- Description:
- 600W,15V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,938
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM6T15CAHE3_B/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 15 V standoff voltage (VWM), 16.7 V breakdown voltage (VBR min), and 600 W peak pulse power (10/1000 μs). It clamps transients to ≤27.2 V at 28 A, operates from −65 °C to +150 °C, and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the SM6T15CAHE3_B/H datasheet, SM6T15CAHE3_B/H pinout, SM6T15CAHE3_B/H application, or SM6T15CAHE3_B/H equivalent, key selection criteria include bidirectional clamping capability, low clamping voltage under 28 A surge, AEC-Q101 qualification status, SMB package thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode uses a glass-passivated silicon junction to provide symmetrical clamping in both polarities, enabling robust protection of bidirectional signal lines without polarity sensitivity. Its low-inductance SMB package and 20 °C/W junction-to-lead thermal resistance support fast transient response and reliable power dissipation during repetitive surge events.
The device meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and is qualified to AEC-Q101 for automotive underhood and infotainment applications. Electrical characteristics-including VBR (14.3–15.8 V), VC (≤27.2 V @ 28 A), and ID (≤1.0 μA @ 12.8 V)-are fully specified and tested per JEDEC standards at TA = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 12.8 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 14.3 V / 15.8 V - Breakdown initiates within this range at 1.0 mA test current |
| VC @ IPPM | 27.2 V @ 28 A - Clamped voltage during 10/1000 μs surge, defining maximum stress on protected circuit |
| PPPM | 600 W - Peak pulse power handling capacity under standardized 10/1000 μs waveform |
| TJ max. | +150 °C - Maximum junction temperature, enabling operation in high-ambient automotive environments |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" PCB copper pads |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode / Anode (symmetrical) | Bidirectional transient conduction path | Either terminal serves as cathode or anode depending on transient polarity; no band marking required |
| Case (cathode/anode leads) | PCB solder connection and thermal path | Matte tin-plated leads compliant with J-STD-002; 0.2" × 0.2" copper pads recommended for thermal derating |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR and low leakage (<1.0 μA) over temperature and lifetime |
| AEC-Q101 qualification | Validated reliability for automotive powertrain, body control, and ADAS modules |
| Low-inductance SMB package | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulses) |
| MSL Level 1 rating | Enables single-pass reflow without moisture-related popcorn failure |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Lines |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver I/O pins from load-dump and inductive switching transients in vehicle door modules and seat controllers. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector interface to limit voltage excursions to <27.2 V. Use Value: Prevents damage to transceivers such as TJA1042 or SN65HVD230 during 12 V system surges up to 600 W. | Use Scenario: Safeguarding differential CAN_H/CAN_L signal pairs in factory automation PLCs exposed to relay coil flyback and ESD. IC Role / Device Role / Timing Role: Symmetrical TVS pair (one per line) suppressing common-mode and differential transients without distorting signal integrity. Use Value: Maintains CAN FD data rates up to 5 Mbps by limiting clamping-induced jitter and preserving rise/fall times. |
| Consumer Power Adapter Inputs | Telecom PoE Interface |
Use Scenario: Input-stage surge suppression on AC-DC adapters for smart home hubs subjected to lightning-induced surges on mains lines. IC Role / Device Role / Timing Role: Primary-level TVS across input rectifier output to clamp 10/1000 μs surges before bulk capacitor and controller IC. Use Value: Absorbs 600 W pulses while holding clamped voltage below 27.2 V, protecting PWM controllers like UC3842. | Use Scenario: Secondary-side transient protection on Power over Ethernet (PoE) data lines (IEEE 802.3af/at) in IP cameras and VoIP phones. IC Role / Device Role / Timing Role: Bidirectional clamp on each twisted-pair data line to suppress ESD (IEC 61000-4-2) and surge (IEC 61000-4-5). Use Value: Enables compliance with Class B immunity requirements without degrading 100BASE-TX signal eye diagram. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15CA | Same SMB package, identical VWM (12.8 V) and VC (27.2 V), but rated for 600 W with tighter VBR tolerance (14.3–15.8 V vs. 14.3–16.7 V); not AEC-Q101 qualified | Commercial-grade only; unsuitable for automotive production without additional qualification | Select when AEC-Q101 is not required and tighter VBR distribution is preferred |
| 1.5KE15CA | Through-hole DO-201 package, same VWM/VC specs, but higher RθJA (~50 °C/W on larger pads); 600 W rating requires larger PCB area | Not compatible with automated SMT lines; limited to prototyping or legacy through-hole designs | Select only for manual assembly or where thermal mass of leaded package improves low-frequency surge margin |
Compared with SMBJ15CA and 1.5KE15CA, SM6T15CAHE3_B/H uniquely combines AEC-Q101 qualification, SMB SMT compatibility, and validated performance on minimal 5.0 mm × 5.0 mm copper pads-making it the preferred choice for volume automotive and industrial SMT production where reliability and process compatibility are co-critical.
Availability
SM6T15CAHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, consumer power adapter inputs, and telecom PoE data lines requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SM6T15CAHE3_B/H 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, efficiency, and application-specific optimization.
The SM6T Series is designed specifically for high-reliability transient suppression in automotive, industrial, and communications systems-delivering consistent clamping performance, AEC-Q101 validation, and SMT-ready packaging for demanding surge environments.
FAQ
What is the clamping voltage of SM6T15CAHE3_B/H at its rated peak pulse current?
The SM6T15CAHE3_B/H has a maximum clamping voltage (VC) of 27.2 V when subjected to its rated peak pulse current of 28 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88385 and defines the upper voltage limit imposed on protected circuitry during surge events. The SM6T15CAHE3_B/H maintains this clamping performance across its full operating temperature range.
Is SM6T15CAHE3_B/H suitable for automotive applications?
Yes, SM6T15CAHE3_B/H is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix indicating RoHS-compliant and AEC-Q101 qualified construction. It is rated for operation from −65 °C to +150 °C and meets MSL Level 1 reflow requirements-making SM6T15CAHE3_B/H appropriate for engine control units, body electronics, and ADAS sensor modules where reliability under thermal and mechanical stress is critical.
What does the "CA" suffix indicate in SM6T15CAHE3_B/H?
The "CA" suffix in SM6T15CAHE3_B/H denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression in both forward and reverse directions. Unlike unidirectional variants (e.g., SM6T15A), SM6T15CAHE3_B/H has no polarity marking and functions identically regardless of voltage polarity-ideal for protecting AC-coupled or differential signal lines such as CAN, LIN, or USB data paths.
What is the standoff voltage (VWM) of SM6T15CAHE3_B/H and how is it used in circuit design?
The standoff voltage (VWM) of SM6T15CAHE3_B/H is 12.8 V, representing the maximum continuous reverse voltage the device can withstand without entering breakdown. In circuit design, VWM must exceed the normal operating voltage of the protected line-e.g., for a 12 V automotive bus, SM6T15CAHE3_B/H provides 0.8 V margin above nominal, ensuring no leakage or conduction during steady-state operation while remaining ready to clamp transients above that threshold.
How does the SMB (DO-214AA) package of SM6T15CAHE3_B/H affect thermal performance?
The SMB (DO-214AA) package of SM6T15CAHE3_B/H delivers 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 enables effective heat dissipation during transient events, though sustained power dissipation is limited to 5.0 W. For optimal thermal management, SM6T15CAHE3_B/H should be placed with minimum pad dimensions per Vishay's recommended layout to avoid derating penalties above 25 °C ambient.
SM6T15CAHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 28A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SM6T15CAHE3_B/H FAQ
1.How can I place an order for SM6T15CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T15CAHE3_B/H 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 SM6T15CAHE3_B/H reliable?
The price and inventory of SM6T15CAHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T15CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for SM6T15CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T15CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T15CAHE3_B/H?
SM6T15CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T15CAHE3_B/H 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 SM6T15CAHE3_B/H?
For technical support, including SM6T15CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T15CAHE3_B/H requirements.
6.How does Aetrix verify that SM6T15CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SM6T15CAHE3_B/H 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 SM6T15CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of SM6T15CAHE3_B/H?
All SM6T15CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T15CAHE3_B/H, 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 SM6T15CAHE3_B/H part is unused and in its original packaging.
Return procedure for SM6T15CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T15CAHE3_B/H 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 …
