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Vishay General Semiconductor - Diodes Division TPSMP30AHM3_A/I
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- Part No.:
- TPSMP30AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP30AHM3_A/I.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:17,000
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Product details
Overview
TPSMP30AHM3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the eSMP® Series, designed for high-reliability automotive and industrial overvoltage protection. It features a 28.5 V to 31.5 V breakdown voltage (VBR), 25.6 V stand-off voltage (VWM), 400 W peak pulse power (PPPM), 9.7 A peak pulse current (IPPM), and 185 °C maximum junction temperature - deployed to protect signal lines and drive transistors in engine control units and ADAS sensor interfaces.
For engineers reviewing the TPSMP30AHM3_A/I datasheet, TPSMP30AHM3_A/I pinout, TPSMP30AHM3_A/I application, or TPSMP30AHM3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, DO-220AA (SMP) package with 1.0 mm profile, unidirectional polarity, low incremental surge resistance, and clamping voltage of 41.4 V at rated IPPM.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver fast response time (<1 ns), low clamping ratio (VC/VBR ≈ 1.35), and stable performance up to 185 °C junction temperature. Its unidirectional configuration enables robust protection against positive-going transients on DC-biased lines.
The device operates with 1.0 μA max reverse leakage at VWM, 2.5 V max forward voltage at 25 A, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its SMP (DO-220AA) package supports automated placement and provides thermal dissipation via 5.0 mm × 5.0 mm PCB copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V - defines reliable avalanche initiation threshold under 10 mA test current |
| VWM | 25.6 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| PPPM | 400 W - peak pulse power handling capability with 10/1000 μs waveform, enabling protection against ISO 7637-2 Pulse 1/2a/5a |
| IPPM | 9.7 A - peak surge current supported at clamping voltage, validated with derating above 25 °C |
| VC @ IPPM | 41.4 V - clamped voltage during full-rated surge, limiting stress on downstream ICs |
| TJ max | 185 °C - extended junction temperature rating supporting under-hood automotive deployment |
| Polarity | Unidirectional - suitable for DC-biased signal or power rail protection with cathode band marking |
Pinout & Package
Package: SMP (DO-220AA), surface-mount, halogen-free, RoHS-compliant, AEC-Q101 qualified. Dimensions: 3.61 mm × 2.18 mm × 1.0 mm (L × W × H); matte tin-plated terminals; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected line's lower-potential side (e.g., ground return or negative rail) |
| Cathode | Current exit point during forward conduction; avalanche node during reverse surge | Connected to protected line's higher-potential side (e.g., signal or supply rail); marked by color band |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| 185 °C junction rating | Enables operation in high-ambient environments such as engine compartments without thermal derating penalties |
| 1.0 mm typical height | Minimizes board space and profile for compact ECU and sensor module layouts |
| Low incremental surge resistance | Reduces VC overshoot during fast transients, improving protection margin for 3.3 V/5 V logic interfaces |
| MSL Level 1, 260 °C peak | Supports standard lead-free reflow without moisture sensitivity concerns or baking requirements |
Applications
| Automotive Engine Control Unit (ECU) | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protection of 12 V supply inputs and sensor signal lines (e.g., MAP, TPS) against load dump and inductive switching transients. IC Role / Device Role: Unidirectional TVS clamp placed between power rail and ground, absorbing energy from ISO 16750-2 pulses. Use Value: Clamps to 41.4 V at 9.7 A, preventing damage to MCU I/O and analog front-end circuitry while maintaining AEC-Q101 compliance. |
Use Scenario: Surge suppression on CAN_H/CAN_L differential pair in factory automation controllers exposed to EFT and lightning-induced surges. IC Role / Device Role: Discrete unidirectional TVS per line, mounted close to connector with dedicated ground plane. Use Value: 400 W PPPM and 1.0 μA leakage at 25.6 V ensure minimal bus loading and robust immunity to IEC 61000-4-4/5 events. |
| ADAS Camera Module Power Input | Consumer IoT Sensor Hub |
Use Scenario: Input protection for 5 V camera power rail subjected to hot-swap and capacitive discharge transients in rear-view systems. IC Role / Device Role: Primary TVS on main power path, upstream of LDO and image sensor. Use Value: 28.5–31.5 V VBR and 41.4 V VC provide safe margin above 5 V rail while surviving 1000 V/100 Ω ISO 7637-2 Pulse 5a. |
Use Scenario: Protection of I²C and UART signal lines connecting environmental sensors (temp/humidity/pressure) to host MCU in smart home hubs. IC Role / Device Role: Low-capacitance unidirectional clamp on bidirectional data lines referenced to 3.3 V supply. Use Value: 1.0 μA leakage at VWM avoids signal integrity degradation; 1.0 mm height enables co-placement with 0402 passives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | DO-214AC (SMA) package; 30 V VBR min; 400 W PPPM; 175 °C TJ max; higher profile (2.29 mm) | Less suitable for ultra-thin modules; requires larger pad layout; not AEC-Q101 qualified | Preferred where legacy SMA footprint exists and automotive qualification is not required |
| TPSMA6.8A | Same SMP package; lower VBR (6.45–7.14 V); 250 W PPPM; identical AEC-Q101 and MSL Level 1 ratings | Designed for 5 V rail protection; insufficient clamping margin for 12 V/24 V systems | Select only for sub-10 V applications requiring same form factor and automotive compliance |
Compared with SMAJ30A and TPSMA6.8A, the TPSMP30AHM3_A/I delivers superior thermal robustness (185 °C vs. 175 °C), lower profile (1.0 mm vs. 2.29 mm), and guaranteed AEC-Q101 compliance - making it the optimal choice for next-generation automotive and space-constrained industrial designs requiring high-power-density transient suppression.
Availability
TPSMP30AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial CAN nodes, ADAS camera modules, and consumer IoT sensor hubs requiring stable component supply, long-term lifecycle support, and AEC-Q101 assurance.
Supply support for TPSMP30AHM3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The TPSMP30AHM3_A/I belongs to Vishay's eSMP® PAR® TVS family, engineered specifically for high-power-density, high-temperature transient suppression in automotive and industrial control systems where space, thermal margin, and qualification rigor are critical.
FAQ
What is the breakdown voltage range of the TPSMP30AHM3_A/I?
The TPSMP30AHM3_A/I has a specified breakdown voltage (VBR) range of 28.5 V to 31.5 V at 10 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent avalanche initiation across production lots and temperature extremes, directly supporting design margining for 24 V automotive systems. The TPSMP30AHM3_A/I maintains this specification under full AEC-Q101 stress testing.
Is the TPSMP30AHM3_A/I suitable for 24 V automotive power rail protection?
Yes, the TPSMP30AHM3_A/I is explicitly qualified for 24 V system protection: its 25.6 V stand-off voltage (VWM) provides >10 % margin above nominal 24 V, while its 41.4 V clamping voltage (VC) stays well below the 45 V absolute maximum rating of most 24 V-rated MCUs and power ICs. The TPSMP30AHM3_A/I is AEC-Q101 certified and rated for 185 °C operation - meeting under-hood requirements.
Does the TPSMP30AHM3_A/I have a bidirectional configuration option?
No, the TPSMP30AHM3_A/I is unidirectional only, as confirmed in the Vishay datasheet revision 25-Apr-2022. It is designed for DC-biased lines where transients occur in one polarity - such as positive-going spikes on 12 V or 24 V rails. For AC or bipolar signal line protection, engineers must select a separate bidirectional variant (e.g., TPSMP30CA) or use back-to-back unidirectional devices.
What is the mounting pad layout recommendation for the TPSMP30AHM3_A/I?
Vishay specifies a 5.0 mm × 5.0 mm copper pad per terminal for optimal thermal and surge performance. The TPSMP30AHM3_A/I datasheet (Fig. 6, page 3) confirms this layout enables full 400 W PPPM rating at 25 °C ambient. Smaller pads reduce surge capability and increase junction temperature - the TPSMP30AHM3_A/I must be routed with minimum 0.5 mm solder mask defined clearance and internal ground plane connection for best results.
How does the TPSMP30AHM3_A/I compare to standard SMA-package TVS diodes in thermal performance?
The TPSMP30AHM3_A/I achieves 185 °C maximum junction temperature - 10 °C higher than typical SMA-package TVS diodes like SMAJ30A (175 °C). Its SMP (DO-220AA) package also offers lower thermal resistance due to optimized copper slug construction and shorter internal bond wires. In practice, the TPSMP30AHM3_A/I sustains higher average power dissipation in confined spaces, making it preferable for thermally aggressive automotive and industrial deployments.
TPSMP30AHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- PAR®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 9.7A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-220AA (SMP)
TPSMP30AHM3_A/I FAQ
1.How can I place an order for TPSMP30AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP30AHM3_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 TPSMP30AHM3_A/I reliable?
The price and inventory of TPSMP30AHM3_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 TPSMP30AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMP30AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP30AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP30AHM3_A/I?
TPSMP30AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP30AHM3_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 TPSMP30AHM3_A/I?
For technical support, including TPSMP30AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP30AHM3_A/I requirements.
6.How does Aetrix verify that TPSMP30AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMP30AHM3_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 TPSMP30AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMP30AHM3_A/I?
All TPSMP30AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP30AHM3_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 TPSMP30AHM3_A/I part is unused and in its original packaging.
Return procedure for TPSMP30AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP30AHM3_A/I Tags
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