My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMA30AHE3_A/I
- Part No.:
- TPSMA30AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA30AHE3_A/I.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,048
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMA30AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) in SMA (DO-214AC) package, designed to protect sensitive electronics against 10/1000 µs surge transients up to 400 W peak pulse power. It features a 30 V nominal breakdown voltage (VBR = 28.5–31.5 V), clamps at ≤41.4 V under 9.7 A peak pulse current, and operates reliably up to TJ = 185 °C - ideal for automotive power rail and sensor line protection.
For engineers reviewing the TPSMA30AHE3_A/I datasheet, TPSMA30AHE3_A/I pinout, TPSMA30AHE3_A/I application, or TPSMA30AHE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, unidirectional polarity, 1.0 W steady-state power dissipation, low clamping ratio (VC/VBR ≈ 1.38), and compatibility with high-reliability PCB layouts using 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for junction stability and low incremental surge resistance. Its 10/1000 µs waveform response delivers consistent clamping performance across temperature (−65 °C to +185 °C), with a typical VBR temperature coefficient of +0.088 %/°C.
The device is rated for 40 A non-repetitive forward surge current (8.3 ms half-sine), exhibits ≤3.5 V forward voltage at 25 A, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak - confirming suitability for automated SMT assembly in automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 V / 30.0 V / 31.5 V - defines precise voltage threshold at which avalanche conduction begins under 1 mA test current |
| VWM | 25.6 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA at 25 °C |
| VC @ IPPM | ≤41.4 V - clamping voltage during 9.7 A 10/1000 µs surge, limiting downstream IC stress |
| PPPM | 400 W - peak pulse power handling capability under standard lightning/surge waveform |
| TJ max. | +185 °C - enables operation in under-hood automotive or high-temperature industrial enclosures |
| Polarity | Unidirectional - protects only against positive transients relative to cathode; requires correct orientation on PCB |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 5.28 mm length, 4.50 mm width, and 2.29 mm height |
Pinout & Package
Package: SMA (DO-214AC), molded case with matte tin-plated leads, UL 94 V-0 flammability rating, and cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode reference node for unidirectional clamping | Connected to protected line; conducts when line voltage exceeds VBR relative to anode ground |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane; completes clamping current path during surge |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| 185 °C junction rating | Supports placement near heat sources (e.g., power converters) without derating in most ambient conditions |
| 400 W 10/1000 µs pulse capability | Meets ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 Level 3 surge immunity requirements |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage exposure to downstream MOSFETs, MCUs, or CAN transceivers during transient events |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow without moisture-related popcorning or delamination |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump and alternator ripple transients on 24 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 25.6 V. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V microcontrollers and LIN/CAN transceivers during ISO 7637-2 events. | Use Scenario: Protecting analog input lines of pressure, temperature, or position sensors exposed to EMI in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance TVS shunting fast-rising transients (<1 ns rise time) on signal traces before ADC front-end. Use Value: Maintains signal integrity by limiting voltage excursion to ≤41.4 V while adding <1 pF parasitic capacitance at 1 MHz. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding PoE-powered switches and base station RF modules against lightning-induced surges on 48 V DC inputs. IC Role / Device Role / Timing Role: Primary-level TVS on DC input stage, coordinated with upstream fuses and secondary filtering. Use Value: Absorbs 400 W surge energy without failure, enabling compliance with IEC 61000-4-5 (1.2/50 µs + 8/20 µs combo wave). | Use Scenario: Shielding BLDC motor driver ICs from inductive kickback during PWM commutation in washing machines and HVAC fans. IC Role / Device Role / Timing Role: Fast-response TVS across H-bridge high-side FET source and ground to clamp flyback spikes. Use Value: Limits VDS overshoot to safe levels (<42 V) for 60 V-rated MOSFETs, reducing need for oversized voltage ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | Same SMA package, 30 V VBR, but lower PPPM = 400 W (same rating), higher VC = 48.4 V at 8.3 A | Higher clamping voltage reduces margin for 3.3 V logic; less suitable for tight-voltage-margin designs | Select TPSMA30AHE3_A/I when clamping below 42 V is required for 24 V system interfaces |
| SMCJ30A | Larger SMC (DO-214AB) package, same VBR/VC, but higher PPPM = 1500 W and IPPM = 33.5 A | Requires larger PCB footprint and thermal relief; used where higher surge energy must be absorbed | Choose TPSMA30AHE3_A/I for space-constrained 24 V automotive modules where 400 W suffices |
Compared with SMAJ30A and SMCJ30A, the TPSMA30AHE3_A/I offers superior clamping performance in the same footprint as SMAJ30A while maintaining AEC-Q101 qualification - making it optimal for compact, high-reliability 24 V rail protection where voltage margin and automotive compliance are critical.
Availability
TPSMA30AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power inputs requiring stable component supply, AEC-Q101 traceability, and RoHS-compliant sourcing.
Supply support for TPSMA30AHE3_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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, thermal performance, and automotive qualification.
The TPSMA series belongs to Vishay's PAR® (Precision Avalanche Regulator) transient suppression platform, engineered specifically for high-temperature, high-surge environments in automotive and industrial applications where long-term parametric stability is mandatory.
FAQ
What is the exact breakdown voltage range for TPSMA30AHE3_A/I?
The TPSMA30AHE3_A/I has a guaranteed breakdown voltage range of 28.5 V to 31.5 V at 1.0 mA test current (IT), with a nominal value of 30.0 V. This specification is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet Document Number 88405, Revision 23-Jan-2024. The TPSMA30AHE3_A/I maintains this tolerance across its full operating temperature range.
Is TPSMA30AHE3_A/I AEC-Q101 qualified?
Yes, the TPSMA30AHE3_A/I is AEC-Q101 qualified. The "HE3" suffix denotes RoHS-compliant and AEC-Q101 qualified construction, verified per JEDEC standards for temperature cycling, highly accelerated life testing (HALT), and surge robustness. This qualification is explicitly stated in the Vishay datasheet for the TPSMA30AHE3_A/I family and applies to all HE3-suffixed variants.
What is the maximum clamping voltage of TPSMA30AHE3_A/I under surge conditions?
The TPSMA30AHE3_A/I clamps to a maximum of 41.4 V when subjected to its rated 9.7 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is specified in the Electrical Characteristics table of the official Vishay datasheet and represents worst-case clamping performance at TA = 25 °C.
Does TPSMA30AHE3_A/I support lead-free reflow soldering?
Yes, the TPSMA30AHE3_A/I supports lead-free reflow soldering with a maximum peak temperature of 260 °C, meeting J-STD-020 MSL Level 1 requirements. Its matte tin-plated terminals are solderable per J-STD-002 and JESD 22-B102, and it passes JESD 201 Class 2 whisker testing - ensuring process compatibility and long-term interconnect reliability.
How does the temperature coefficient affect TPSMA30AHE3_A/I's breakdown voltage?
The TPSMA30AHE3_A/I has a typical VBR temperature coefficient (αT) of +0.088 %/°C. This means its breakdown voltage increases linearly with junction temperature - e.g., at TJ = 125 °C, VBR rises by approximately 8.8 % above its 25 °C value. This behavior is documented in the Vishay datasheet and must be accounted for in high-temperature design margins.
TPSMA30AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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-214AC (SMA)
TPSMA30AHE3_A/I FAQ
1.How can I place an order for TPSMA30AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA30AHE3_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 TPSMA30AHE3_A/I reliable?
The price and inventory of TPSMA30AHE3_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 TPSMA30AHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMA30AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA30AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA30AHE3_A/I?
TPSMA30AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA30AHE3_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 TPSMA30AHE3_A/I?
For technical support, including TPSMA30AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA30AHE3_A/I requirements.
6.How does Aetrix verify that TPSMA30AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMA30AHE3_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 TPSMA30AHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMA30AHE3_A/I?
All TPSMA30AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA30AHE3_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 TPSMA30AHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMA30AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA30AHE3_A/I 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 …
