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Vishay T6N91CAHM3/H
- Part No.:
- T6N91CAHM3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
T6N91CAHM3/H.pdf
- Description:
- 600W,91V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,038
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Product details
Overview
T6N91CAHM3/H from Vishay General Semiconductor is a surface-mount bidirectional PAR® Transient Voltage Suppressor in DFN3820A package, rated for 91 V breakdown voltage (±5 %), 77.8 V stand-off voltage, and 600 W peak pulse power (10/1000 μs). It delivers 4.8 A peak pulse current and clamps to 125 V at that current, with 185 °C maximum junction temperature - designed for automotive-grade ESD and surge protection on sensor signal lines and MOSFET gate drivers.
For engineers reviewing the T6N91CAHM3/H datasheet, T6N91CAHM3/H pinout, T6N91CAHM3/H application, or T6N91CAHM3/H equivalent, this page provides verified electrical parameters, AEC-Q101 qualification status, thermal resistance values, IEC 61000-4-2 ESD immunity (30 kV contact/air), and package dimensions compliant with J-STD-020 MSL Level 1.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and low-leakage performance. Its bidirectional configuration enables symmetrical clamping across both polarities without polarity marking, supporting robust protection in AC-coupled or differential signal paths.
The DFN3820A package features side-wettable flanks for automated optical inspection and supports reflow profiles up to 260 °C peak. Thermal resistance is characterized per JEDEC 51-2A (RθJA = 140–175 °C/W) and JEDEC 51-14 (RθJM = 5–6.5 °C/W), enabling accurate thermal modeling in compact automotive PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 86.5–95.5 V at 1 mA test current - defines minimum voltage at which clamping initiates under transient stress |
| Stand-off Voltage VWM | 77.8 V - maximum continuous working voltage before leakage exceeds 1 μA, ensuring no false triggering during normal operation |
| Peak Pulse Power PPPM | 600 W (10/1000 μs waveform) - quantifies transient energy handling capability for automotive load-dump and ISO 7637-2 pulse 5a compliance |
| Clamping Voltage VC | 125 V at 4.8 A IPPM - determines maximum voltage seen by protected IC during worst-case surge, critical for MOSFET gate oxide safety margin |
| Junction Temperature Range | −65 °C to +185 °C - enables deployment in under-hood automotive environments and industrial motor control enclosures |
| ESD Immunity | 30 kV contact / 30 kV air per IEC 61000-4-2 - meets stringent EMC requirements for infotainment and ADAS sensor interfaces |
| Package | DFN3820A (3.95 mm × 2.18 mm × 0.88 mm) - ultra-low-profile leadless package compatible with AOI and high-density SMT assembly |
Pinout & Package
DFN3820A package: 2-terminal, bidirectional device with no cathode band; terminals are symmetric and non-polarized. Matte tin-plated leads meet J-STD-002 solderability and JESD 22-B102 reliability standards. HM3 suffix indicates halogen-free, RoHS-compliant, AEC-Q101 qualified construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity - no orientation required during placement |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; forms single-channel symmetrical clamping path between connected nodes |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD stress - required for Tier-1 supplier BOMs |
| Side-wettable flanks | Enables automated optical inspection of solder joint quality without X-ray, reducing post-reflow defect escape rate |
| Junction passivation | Optimized die surface treatment ensures <1 μA leakage at VWM and stable VBR over 15-year automotive lifetime |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without dry-packaging - simplifies manufacturing logistics |
| TJ = 185 °C capability | Supports operation adjacent to power electronics in engine control units without derating or thermal shutdown |
Applications
| Automotive Sensor Protection | Power MOSFET Gate Protection |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and analog sensor outputs (e.g., pressure, temperature) from load-dump transients and ESD events in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector interface or IC input pins to limit transient excursions below absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to 5 V or 3.3 V sensor signal chains while maintaining <1 μA leakage at 77.8 V operating voltage. |
Use Scenario: Safeguarding N-channel and P-channel MOSFET gates in motor driver half-bridges against voltage spikes induced by inductive kickback during PWM switching. IC Role / Device Role / Timing Role: Fast-response TVS placed between gate and source to clamp gate-source voltage to ≤125 V during 600 W surge events. Use Value: Ensures gate oxide integrity under ISO 7637-2 Pulse 5a (load dump) conditions without adding RC snubber complexity. |
| Infotainment Interface Protection | ADAS Camera Signal Line Protection |
Use Scenario: Shielding USB 2.0, HDMI, or LVDS data lines in head-unit displays and audio amplifiers from ESD discharge during user interaction or service operations. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF at 0 V) bidirectional clamp installed inline with high-speed signal traces to suppress transients without signal integrity degradation. Use Value: Maintains signal rise/fall times while passing IEC 61000-4-2 ±30 kV ESD testing without bit errors or display artifacts. |
Use Scenario: Guarding MIPI CSI-2 differential pairs connecting radar or surround-view cameras to domain controllers against cable-borne surges and board-level ESD. IC Role / Device Role / Timing Role: Symmetric clamping device mounted at camera module flex connector to absorb fast-rising transients before reaching serializer IC inputs. Use Value: Enables reliable image transmission under harsh electromagnetic environments (e.g., near ignition systems or DC-DC converters) with no added jitter or skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ90CA | DO-214AC package (larger footprint, 2.4 mm height), 90 V VBR, 600 W PPPM, RθJA ≈ 50 °C/W - higher thermal resistance limits power density | Preferred where manual rework or legacy through-hole compatibility is needed; unsuitable for ultra-thin automotive modules | Select SMAJ90CA only if DFN3820A's 0.88 mm profile conflicts with mechanical constraints or AOI infrastructure is unavailable |
| SMCJ90CA | DO-214AB package (7.11 mm × 6.22 mm), 90 V VBR, 1500 W PPPM, RθJA ≈ 25 °C/W - higher surge capacity but 3× larger area and 4× height | Used in industrial power supplies and EV charging stations where space is less constrained and higher energy absorption is mandatory | Choose SMCJ90CA when protecting 48 V bus lines or inverters requiring >1000 W surge handling - not a drop-in replacement for T6N91CAHM3/H |
Compared with SMAJ90CA and SMCJ90CA, the T6N91CAHM3/H offers superior board-area efficiency and thermal performance per unit volume in automotive sensor nodes, while maintaining identical clamping behavior and AEC-Q101 compliance - making it optimal for space-constrained, high-reliability signal-line protection.
Availability
T6N91CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, power MOSFET gate safeguarding, and infotainment interface hardening requiring stable component supply across production lifecycles.
Supply support for T6N91CAHM3/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 high-reliability diodes, MOSFETs, and TVS devices for automotive, industrial, and computing markets.
The T6N91CAHM3/H belongs to Vishay's PAR® family of surface-mount TVS diodes engineered specifically for AEC-Q101-compliant automotive electronics needing high-temperature stability, low-profile packaging, and repeatable clamping performance.
FAQ
What is the exact breakdown voltage range for T6N91CAHM3/H?
The T6N91CAHM3/H has a guaranteed breakdown voltage range of 86.5 V to 95.5 V at 1 mA test current, per the datasheet's electrical characteristics table. This ±5 % tolerance is specified for the CA variant and confirmed under TA = 25 °C conditions. The nominal value is 91.0 V, and the device maintains this specification across its full operating temperature range up to TJ = 185 °C.
Is T6N91CAHM3/H suitable for protecting CAN FD bus lines?
Yes, the T6N91CAHM3/H is suitable for CAN FD bus line protection due to its bidirectional clamping, 77.8 V stand-off voltage (well above CAN FD's 5 V common-mode range), and 30 kV IEC 61000-4-2 ESD rating. Its low leakage (<1 μA at VWM) prevents bus loading, and its 125 V clamping voltage ensures transceivers remain within safe operating limits during surge events.
Does T6N91CAHM3/H require a heatsink in typical automotive applications?
No, the T6N91CAHM3/H does not require an external heatsink in typical automotive applications. Its DFN3820A package achieves RθJM = 5–6.5 °C/W to the PCB mount pad, and with 600 W peak pulse power limited to short-duration transients (≤1000 μs), thermal accumulation is negligible. Continuous power dissipation remains well below 0.1 W under normal operation.
How does the HM3 suffix affect the T6N91CAHM3/H specification?
The HM3 suffix on T6N91CAHM3/H denotes halogen-free, RoHS-compliant construction with matte tin terminations, AEC-Q101 qualification, and JESD 201 Class 2 whisker resistance. It confirms compliance with automotive material standards and guarantees performance under high-reliability stress tests - distinct from industry-grade variants lacking the 'H' or 'M3' identifiers.
Can T6N91CAHM3/H be used in place of T6N90CAHM3/H?
No - T6N91CAHM3/H and T6N90CAHM3/H are not interchangeable. The T6N90CAHM3/H is not a defined part in Vishay's documentation; the closest valid part is T6N91CAHM3/H (91 V nominal) or T6N82CAHM3/H (82 V). Substituting based on approximate voltage values risks violating VWM margins or clamping thresholds - always verify against the exact marked device code and datasheet table.
T6N91CAHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- Package/Case:
- 2-VDFN
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 77.8V
- Voltage - Breakdown (Min):
- 86.5V
- Voltage - Clamping (Max) @ Ipp:
- 125V
- Current - Peak Pulse (10/1000µs):
- 4.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN3820A
T6N91CAHM3/H FAQ
1.How can I place an order for T6N91CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for T6N91CAHM3/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 T6N91CAHM3/H reliable?
The price and inventory of T6N91CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T6N91CAHM3/H is usually 5 days.
3.What payment methods are accepted for T6N91CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T6N91CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T6N91CAHM3/H?
T6N91CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T6N91CAHM3/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 T6N91CAHM3/H?
For technical support, including T6N91CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T6N91CAHM3/H requirements.
6.How does Aetrix verify that T6N91CAHM3/H is sourced from the original manufacturer or authorized distributors?
All T6N91CAHM3/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 T6N91CAHM3/H meets industry standards.
7.What is the process for return or replacement of T6N91CAHM3/H?
All T6N91CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with T6N91CAHM3/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 T6N91CAHM3/H part is unused and in its original packaging.
Return procedure for T6N91CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T6N91CAHM3/H Tags
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