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Vishay General Semiconductor - Diodes Division 3.0C85CA-M3/H
- Part No.:
- 3.0C85CA-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0C85CA-M3/H.pdf
- Description:
- 3KW, 85V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,624
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Product details
Overview
3.0C85CA-M3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, designed for high-energy surge protection with 3000 W peak pulse power (10/1000 μs), 137 V maximum clamping voltage at 21.9 A, and 94.4–104 V breakdown voltage range. It protects MOSFETs, ICs, and sensor signal lines in industrial and telecom power rails.
For engineers reviewing the 3.0C85CA-M3/H datasheet, 3.0C85CA-M3/H pinout, 3.0C85CA-M3/H application, or 3.0C85CA-M3/H equivalent, this page delivers verified electrical specs, clamping behavior under 10/1000 μs and 8/20 μs transients, JEDEC-compliant thermal resistance (RthJA = 90 °C/W), ESD immunity per IEC 61000-4-2 (30 kV contact/air), and MSL Level 1 reflow compatibility.
Technical Context
This TVS diode operates bidirectionally with no polarity marking and is optimized for fast response to voltage transients induced by inductive switching or lightning surges. Its low incremental surge resistance and excellent clamping capability ensure stable protection across wide temperature range (–55 °C to +175 °C).
It meets J-STD-020 MSL Level 1 with 260 °C peak reflow profile, uses halogen-free, RoHS-compliant molding compound rated UL 94 V-0, and features matte tin-plated leads qualified per J-STD-002 and JESD 22-B102 with JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 94.4–104 V at 1 mA test current - defines minimum voltage at which device enters avalanche conduction during surge events. |
| Stand-off Voltage (VWM) | 85 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA; sets safe DC bias margin. |
| Clamping Voltage (VC) | 137 V at 21.9 A (10/1000 μs) - peak voltage seen by protected circuit during worst-case surge; determines downstream component stress. |
| Peak Pulse Power (PPPM) | 3000 W (10/1000 μs) - energy-handling capacity for standard lightning/surge waveforms; enables robust front-end protection. |
| ESD Immunity | 30 kV per IEC 61000-4-2 (contact & air discharge) - ensures survivability against human-body-model electrostatic events. |
| Junction Temperature Range | –55 °C to +175 °C - supports operation in harsh environments including automotive under-hood and industrial motor drives. |
| Thermal Resistance (RthJA) | 90 °C/W - quantifies junction-to-ambient heat dissipation on standard FR4 PCB; informs derating above 25 °C ambient. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with unmarked cathode/anode terminals. Case conforms to JEDEC DO-214AB outline, with 0.320" × 0.246" footprint and 0.126" height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (unmarked) | Transient current sink during positive surge | Conducts avalanche current when anode voltage exceeds VBR; no physical marking on bidirectional variant. |
| Anode (unmarked) | Transient current sink during negative surge | Conducts avalanche current when cathode voltage exceeds VBR; symmetric bidirectional clamping path. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Protects AC-coupled or floating signal lines without polarity concerns; eliminates need for dual-device placement. |
| 3000 W peak pulse power (10/1000 μs) | Handles high-energy transients common in industrial motor controls and telecom line interfaces without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage stress on downstream ICs-e.g., 137 V clamp limits exposure of 100 V-rated components. |
| MSL Level 1 reflow compatibility | Enables single-pass lead-free reflow assembly at 260 °C peak without popcorn or delamination risk. |
| Halogen-free, RoHS-compliant construction | Meets environmental compliance requirements for global industrial and telecom equipment certifications. |
Applications
| Industrial Motor Drives | Telecom Line Interface |
|---|---|
Use Scenario: Protection of gate drivers and bus voltage sense circuits against inductive kickback from IGBT/MOSFET switching. IC Role / Device Role / Timing Role: Transient voltage suppressor placed across DC bus or gate resistor network to clamp spikes before they reach control ICs. Use Value: Limits transient voltage to ≤137 V, preventing latch-up or oxide breakdown in 100 V-rated gate drivers and isolated amplifiers. |
Use Scenario: Surge suppression on primary-side Ethernet PHY or xDSL line interface transformers. IC Role / Device Role / Timing Role: Bidirectional TVS connected across transformer secondary to absorb IEC 61000-4-5 8/20 μs surges up to 177 A. Use Value: Clamps to 177 V at 169 A (8/20 μs), maintaining signal integrity while meeting GR-1089-CORE telecom surge immunity requirements. |
| Automotive Body Control Module | Consumer Sensor Hub |
Use Scenario: Protection of LIN bus transceivers and load switch inputs exposed to battery dump energy and load-dump transients. IC Role / Device Role / Timing Role: TVS placed between LIN line and ground to shunt transients exceeding 85 V stand-off level. Use Value: Withstands –55 °C to +175 °C junction temperature range and 30 kV ESD, ensuring reliability in under-hood environments. |
Use Scenario: ESD and surge protection for analog sensor signal paths (e.g., temperature, humidity, IMU) in smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance TVS (typ. <100 pF at 0 V) placed inline with ADC input to prevent latch-up during handling. Use Value: 30 kV IEC 61000-4-2 immunity and sub-1 μA leakage at 85 V enable precision measurement without offset drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ85CA | Lower PPPM (600 W), same VWM (85 V), higher VC (139 V @ 12.5 A), SMB package (smaller footprint, lower thermal mass) | Limited to lower-energy surges; unsuitable for 3000 W IEC 61000-4-5 testing or heavy inductive loads | Select when board space is constrained and surge energy remains below 600 W; verify RthJA derating for sustained duty cycles. |
| SMCJ85CA | Same SMC package, identical VWM (85 V) and VBR range, but rated for 1500 W (10/1000 μs); VC = 139 V @ 10.8 A | Half the peak pulse power of 3.0C85CA-M3/H; insufficient for full 3000 W compliance testing | Choose only if system-level surge testing is limited to 1500 W or lower; not a drop-in replacement for 3000 W requirement. |
Compared with SMBJ85CA and SMCJ85CA, the 3.0C85CA-M3/H delivers double the pulse power rating of SMCJ85CA and five times that of SMBJ85CA-enabling compliance with stringent IEC 61000-4-5 Level 4 and ISO 7637-2 Pulse 5a-while maintaining identical mounting and layout compatibility within the SMC footprint.
Availability
3.0C85CA-M3/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interfaces, and automotive body control modules requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
Supply support for 3.0C85CA-M3/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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on reliability, power handling, and compliance for industrial and automotive markets.
The 3.0C85CA-M3/H belongs to Vishay's TRANSZORB® family of high-power TVS diodes, engineered specifically for robust transient suppression in demanding power rail and signal line applications where 3000 W surge capability and MSL Level 1 assembly are required.
FAQ
What is the breakdown voltage tolerance for 3.0C85CA-M3/H?
The 3.0C85CA-M3/H has a specified breakdown voltage (VBR) range of 94.4 V to 104 V at 1 mA test current, representing ±5% tolerance around the nominal 99.2 V midpoint. This tight distribution ensures consistent clamping onset across production lots and supports reliable design margining in 85 V systems.
Does 3.0C85CA-M3/H support lead-free reflow soldering?
Yes, the 3.0C85CA-M3/H is qualified for lead-free reflow per J-STD-020 MSL Level 1, with a maximum peak temperature of 260 °C. Its matte tin-plated leads meet JESD 22-B102 solderability requirements and JESD 201 Class 2 whisker resistance, enabling reliable single-pass assembly without post-solder cleaning.
How does the clamping voltage of 3.0C85CA-M3/H compare under 10/1000 μs versus 8/20 μs waveforms?
At its rated peak pulse current, the 3.0C85CA-M3/H clamps to 137 V under 10/1000 μs (21.9 A), and to 177 V under 8/20 μs (169 A). The higher 8/20 μs clamp reflects greater instantaneous power absorption-critical for lightning surge standards-and confirms its suitability for IEC 61000-4-5 compliance testing.
Is 3.0C85CA-M3/H suitable for bidirectional signal line protection?
Yes, the 3.0C85CA-M3/H is inherently bidirectional with no polarity marking, making it ideal for protecting AC-coupled or floating differential pairs such as RS-485, CAN, or Ethernet PHY lines. Its symmetrical VBR and VC characteristics ensure equal clamping in both directions without additional circuitry.
What is the thermal resistance from junction to ambient (RthJA) for 3.0C85CA-M3/H?
The 3.0C85CA-M3/H has a typical RthJA of 90 °C/W when mounted on a standard FR4 PCB per JEDEC 51-2A. This value governs thermal derating above 25 °C ambient and must be applied when calculating maximum allowable average power dissipation in continuous or repetitive surge scenarios.
3.0C85CA-M3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 85V
- Voltage - Breakdown (Min):
- 94.4V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 21.9A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
3.0C85CA-M3/H FAQ
1.How can I place an order for 3.0C85CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0C85CA-M3/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 3.0C85CA-M3/H reliable?
The price and inventory of 3.0C85CA-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0C85CA-M3/H is usually 5 days.
3.What payment methods are accepted for 3.0C85CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0C85CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0C85CA-M3/H?
3.0C85CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0C85CA-M3/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 3.0C85CA-M3/H?
For technical support, including 3.0C85CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0C85CA-M3/H requirements.
6.How does Aetrix verify that 3.0C85CA-M3/H is sourced from the original manufacturer or authorized distributors?
All 3.0C85CA-M3/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 3.0C85CA-M3/H meets industry standards.
7.What is the process for return or replacement of 3.0C85CA-M3/H?
All 3.0C85CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 3.0C85CA-M3/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 3.0C85CA-M3/H part is unused and in its original packaging.
Return procedure for 3.0C85CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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