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Vishay General Semiconductor - Diodes Division R3T2FPHM3/I
- Part No.:
- R3T2FPHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 8-PowerTDFN
- Datasheet:
-
R3T2FPHM3/I.pdf
- Description:
- HYBRID SOLUTION SURFACE-MOUNT CO
- Quantity:
- Payment:
- Shipping:
Inventory:6,040
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Product details
Overview
R3T2FPHM3/I from Vishay General Semiconductor is an automotive-qualified, surface-mount two-in-one discrete device integrating a 600 V / 3 A standard rectifier and a 27 V breakdown transient voltage suppressor (TVS) in a common-cathode FlatPAK 5 × 6 package. It delivers secondary ESD and surge protection for low-power DC/DC converters and sensor units while maintaining low forward voltage (0.86 V at 3 A, TJ = 125 °C) and high pulse power handling (200 W, 10/1000 μs).
For engineers reviewing the R3T2FPHM3/I datasheet, R3T2FPHM3/I pinout, R3T2FPHM3/I application, or R3T2FPHM3/I equivalent, this dual-function diode addresses space-constrained automotive subsystems requiring combined rectification and transient suppression with AEC-Q101 qualification, MSL Level 1 reliability, and halogen-free RoHS compliance.
Technical Context
The R3T2FPHM3/I implements a monolithic common-cathode configuration where both the rectifier and TVS share cathode terminals (pins 5–8), enabling compact integration without external interconnects. Its oxide planar chip junction ensures stable reverse leakage (<100 μA at 125 °C) and fast recovery (trr = 1.5 μs typical), while the TVS section provides precise 23.1 V stand-off voltage and clamping at ≤37.5 V under 5.3 A peak pulse current.
Thermal design is supported by low junction-to-mount thermal resistance (RθJM = 3.0 °C/W typical) and validated JEDEC-compliant derating curves for both rectifier forward current and TVS pulse power across -55 to +175 °C operating range. The device meets IEC 61000-4-2 air discharge (>15 kV) and AEC-Q101 human-body model (>8 kV) ESD immunity standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - blocks up to 600 V repetitive reverse voltage in rectifier mode, suitable for 400 V DC bus applications. |
| IF(AV) | 3 A - average forward current rating per diode at TA = 25 °C on 3 × 3 cm Al pad, enabling continuous operation in low-power converters. |
| VBR | 27.0 V (typ.) - TVS breakdown voltage at 1 mA, ensuring reliable triggering above system operating voltage (23.1 V stand-off). |
| PPPM | 200 W - peak pulse power dissipation with 10/1000 μs waveform, protecting against ISO 7637-2 load dump transients. |
| TJ max. | +175 °C - maximum junction temperature supports under-hood automotive placement without derating penalties. |
| CJ (TVS @ 0 V) | 330 pF - junction capacitance at zero bias, limiting signal distortion in low-speed data lines near protected circuits. |
| AEC-Q101 | Qualified - certified for automotive electronics per stress test requirements, including HBM >8 kV and CDM >1 kV. |
Pinout & Package
Package: FlatPAK 5 × 6 surface-mount package with matte tin-plated leads, UL 94 V-0 molding compound, and MSL Level 1 moisture sensitivity rating (peak reflow 260 °C). Dimensions: 5.00 × 6.20 mm footprint, 0.99 mm nominal height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | Rectifier Anode | Input terminals for AC/DC rectification path; electrically isolated from TVS section. |
| 3, 4 | TVS Anode | Transient input nodes for clamping surges on protected lines; separate from rectifier anodes. |
| 5, 6, 7, 8 | Common Cathode | Shared cathode connection for both rectifier and TVS functions; requires single PCB pour for thermal and electrical return. |
Key Features
| Feature | Design Value |
|---|---|
| Two-in-One Integration | Combines rectifier and TVS in one package, eliminating interconnect parasitics and reducing PCB area by ~40% vs. discrete solutions. |
| Oxide Planar Junction | Enables tight parameter distribution (VBR ±4.5%), low trr (1.5 μs), and stable IR drift over temperature and lifetime. |
| Automotive Qualification | AEC-Q101 qualified with whisker-resistant HM3 termination and JESD201 Class 2 plating for long-term solder joint reliability. |
| High Surge Robustness | Withstands 40 A non-repetitive surge (IFSM) and 5.3 A TVS peak pulse current, meeting ISO 16750-2 electrical load requirements. |
| Low Thermal Resistance | RθJM = 3.0 °C/W enables efficient heat transfer to heatsink or copper plane, supporting sustained 3 A operation at elevated ambient temperatures. |
Applications
| Secondary Protection for Sensor Units | Distributed Airbag Modules |
|---|---|
Use Scenario: Protecting LIN or CAN-connected pressure/acceleration sensors in engine bay or chassis locations exposed to load dump and ESD. IC Role / Device Role / Timing Role: Dual-role discrete: rectifies auxiliary supply and clamps transients on sensor signal/power lines. Use Value: Eliminates need for separate TVS + rectifier, reducing BOM count and improving layout symmetry for EMC performance. | Use Scenario: Safeguarding pyro-fuse control circuitry and diagnostic lines in decentralized airbag ECUs mounted near seat rails or pillars. IC Role / Device Role / Timing Role: Common-cathode architecture allows shared ground return between power rail rectification and safety-critical signal line clamping. Use Value: Ensures <100 ns response to ESD events while maintaining <0.86 V forward drop during normal 3 A supply operation. |
| Low-Power DC/DC Converters | Power Distributor Subsystems |
Use Scenario: Input-stage rectification and transient suppression in 12 V → 3.3 V/5 V buck converters powering ADAS cameras or radar modules. IC Role / Device Role / Timing Role: Rectifier handles continuous 3 A input current; TVS section clamps switching noise and coupling spikes from adjacent high-current paths. Use Value: CJ = 330 pF at 0 V avoids signal integrity degradation on feedback or enable lines routed near converter input. | Use Scenario: Secondary surge protection downstream of main fuse box in vehicle power distribution units feeding infotainment, lighting, or HVAC submodules. IC Role / Device Role / Timing Role: Acts as localized clamp at branch node, absorbing residual transients that pass through primary protection stages. Use Value: 200 W PPPM rating sustains repeated 10/1000 μs pulses without degradation, extending system-level surge endurance beyond ISO 7637-2 Pulse 5a limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-function rectifier/TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay SMBJ24AHE3/A | Standalone TVS only (24 V VBR); no integrated rectifier; DO-214AA package. | Requires external rectifier; larger board area; lacks common-cathode optimization for shared thermal path. | Select when only TVS protection is needed or when rectifier and TVS must be thermally decoupled. |
| Vishay R3T2FPKM3/I | Same rectifier specs but 33 V VBR TVS section; otherwise identical FlatPAK 5 × 6 footprint and pinout. | Suitable for 28 V systems (e.g., commercial truck DC/DC) where higher stand-off voltage is required. | Drop-in replacement if system operating voltage exceeds 24 V and clamping margin must be increased. |
Compared with R3T2FPHM3/I, SMBJ24AHE3/A adds design complexity and board area due to discrete implementation, while R3T2FPKM3/I offers identical mechanical fit but shifts TVS protection threshold-making it a direct variant rather than a functional alternative for 24 V applications.
Availability
R3T2FPHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, distributed airbag modules, and low-power DC/DC converters requiring stable component supply with AEC-Q101 traceability and extended temperature support.
Supply support for R3T2FPHM3/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 designs and manufactures discrete semiconductors for automotive, industrial, and computing applications, emphasizing reliability, miniaturization, and AEC-Q qualification.
The R3T2FPHM3/I belongs to Vishay's FlatPAK dual-function diode product line, engineered specifically for space-constrained automotive subsystems needing combined rectification and transient suppression without compromising thermal or ESD performance.
FAQ
What is the exact circuit configuration of the R3T2FPHM3/I?
The R3T2FPHM3/I uses a common-cathode configuration: pins 1 and 2 serve as independent rectifier anodes, pins 3 and 4 as independent TVS anodes, and pins 5–8 form a shared cathode terminal for both functions. This architecture enables compact integration while maintaining electrical separation between rectifier and TVS input paths.
Does the R3T2FPHM3/I meet automotive qualification standards?
Yes, the R3T2FPHM3/I is AEC-Q101 qualified and tested per human-body model (>8 kV), charged-device model (>1 kV), and IEC 61000-4-2 air discharge (>15 kV). Its FlatPAK 5 × 6 package carries HM3 suffix, indicating halogen-free, RoHS-compliant construction and JESD201 Class 2 whisker resistance.
What is the thermal resistance profile of the R3T2FPHM3/I?
The R3T2FPHM3/I has a typical junction-to-mount thermal resistance (RθJM) of 3.0 °C/W and a maximum junction-to-ambient resistance (RθJA) of 80 °C/W when mounted on a 3 × 3 cm aluminum pad. These values are measured per JEDEC 51-14 (transient dual interface) and JEDEC 51-2A standards respectively.
Can the R3T2FPHM3/I replace discrete rectifier and TVS components in existing designs?
Yes-the R3T2FPHM3/I is designed as a drop-in replacement for discrete rectifier + TVS combinations in space-constrained layouts. Its FlatPAK 5 × 6 footprint and common-cathode pinout simplify routing, though PCB land pattern must match the 5.00 × 6.20 mm outline and 8-pin terminal layout specified in Vishay document 98398.
What are the key TVS parameters of the R3T2FPHM3/I?
The R3T2FPHM3/I TVS section features VBR = 25.7–28.4 V (at 1 mA), VWM = 23.1 V, VC ≤ 37.5 V (at IPPM = 5.3 A, 10/1000 μs), and CJ = 330 pF at 0 V. These values ensure robust clamping of automotive transients while minimizing capacitive loading on protected signal lines.
R3T2FPHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- 8-PowerTDFN
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 5.3A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- FlatPAK 5x6 (Dual)
R3T2FPHM3/I FAQ
1.How can I place an order for R3T2FPHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for R3T2FPHM3/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 R3T2FPHM3/I reliable?
The price and inventory of R3T2FPHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R3T2FPHM3/I is usually 5 days.
3.What payment methods are accepted for R3T2FPHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R3T2FPHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R3T2FPHM3/I?
R3T2FPHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R3T2FPHM3/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 R3T2FPHM3/I?
For technical support, including R3T2FPHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R3T2FPHM3/I requirements.
6.How does Aetrix verify that R3T2FPHM3/I is sourced from the original manufacturer or authorized distributors?
All R3T2FPHM3/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 R3T2FPHM3/I meets industry standards.
7.What is the process for return or replacement of R3T2FPHM3/I?
All R3T2FPHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with R3T2FPHM3/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 R3T2FPHM3/I part is unused and in its original packaging.
Return procedure for R3T2FPHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R3T2FPHM3/I Tags
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