My Inquiry
My Account
Taiwan Semiconductor Corporation HER151GH
- Part No.:
- HER151GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
HER151GH.pdf
- Description:
- 50NS, 1.5A, 50V, HIGH EFFICIENT
- Quantity:
- Payment:
- Shipping:
Inventory:6,059
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HER151GH from Taiwan Semiconductor is a high-efficiency, AEC-Q101-qualified single-die silicon rectifier diode in DO-204AC (DO-15) package, rated for 1.5A average forward current, 50V repetitive peak reverse voltage, and 50A non-repetitive surge current - used in automotive-grade DC-DC converters and freewheeling paths.
For engineers reviewing the HER151GH datasheet, HER151GH pinout, HER151GH application, or HER151GH equivalent, key selection criteria include its 1.0V max forward voltage at 1.5A/25°C, 5µA max reverse leakage at 25°C, 35pF junction capacitance, 50ns reverse recovery time, and AEC-Q101 qualification for under-hood automotive power conversion.
Technical Context
This device operates as a unidirectional, glass-passivated PN-junction rectifier with low conduction loss and fast switching behavior. Its 50ns trr and 1.0V VF support high-frequency switching topologies where efficiency and thermal management are critical.
The HER151GH shares the same DO-204AC mechanical outline and cathode-band polarity marking as standard DO-15 diodes, and is thermally characterized by a 60°C/W junction-to-ambient resistance - enabling direct integration into space-constrained PCB layouts without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Avg) | 1.5 A - supports continuous output current in compact 12V–48V DC-DC stages |
| VRRM | 50 V - suitable for low-voltage automotive bus and industrial control rail rectification |
| VF @ 1.5A, 25°C | ≤1.0 V - reduces conduction loss to ≤1.5W at full load, easing thermal design |
| IFSM (8.3ms) | 50 A - withstands inrush and transient surges in motor drive flyback paths |
| trr | ≤50 ns - enables operation up to ~2 MHz switching frequency with minimal switching loss |
| CJ @ 1MHz, 4V | 35 pF - limits capacitive coupling noise in high-dv/dt gate-drive or snubber circuits |
| TJ max | +150 °C - allows operation in engine compartment environments with no derating below 125°C ambient |
Pinout & Package
HER151GH uses the industry-standard DO-204AC (DO-15) axial-leaded package with cathode indicated by a painted band on the body. Leads are pure tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry point | Connects to lower-potential side of switching node (e.g., MOSFET source or transformer secondary center-tap) |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Routes rectified output to filter capacitor or load; blocks reverse voltage up to 50V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power modules requiring zero-failure reliability over temperature cycling and vibration stress |
| Glass passivated junction | Prevents moisture ingress and surface leakage degradation in humid or condensing environments |
| Low VF (≤1.0V) | Reduces forward power dissipation by ≥25% vs. standard 1N400x diodes at 1.5A, lowering heatsink requirements |
| Fast trr (≤50ns) | Minimizes reverse recovery charge (Qrr), reducing EMI and switching losses in synchronous rectifier alternatives |
| RoHS + halogen-free | Complies with IEC 61249-2-21 and automotive ELV directive for end-of-life recyclability |
Applications
| Automotive DC-DC Converters | Industrial Switch-Mode Power Supplies |
|---|---|
Use Scenario: Step-down conversion from 12V battery to 3.3V/5V rails in ADAS camera modules and infotainment ECUs. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant flyback topology. Use Value: AEC-Q101 qualification and 150°C junction rating ensure uninterrupted operation during engine-off hot soak conditions. | Use Scenario: Secondary-side rectification in 24V input, 12V/5A industrial SMPS for PLC I/O modules. IC Role / Device Role / Timing Role: Freewheeling diode across relay coils and solenoid drivers. Use Value: 50A surge rating absorbs inductive kickback energy without failure, eliminating need for TVS clamping. |
| Consumer AC-DC Adapters | LED Driver Secondary Rectification |
Use Scenario: Output rectification in compact 5V/2A wall adapters for USB-C PD accessories. IC Role / Device Role / Timing Role: High-efficiency main rectifier replacing legacy 1N5822 Schottky diodes. Use Value: 1.0V VF enables >89% efficiency at full load while maintaining DO-15 footprint compatibility. | Use Scenario: Constant-current LED string rectification in outdoor signage with wide ambient temperature range. IC Role / Device Role / Timing Role: Isolation barrier output rectifier in flyback-based LED drivers. Use Value: 35pF junction capacitance minimizes high-frequency noise coupling into analog current-sense circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06U | 600V VRRM, 1.0A IF, TO-220AC package, VF = 1.15V @ 1A | Higher voltage rating but lower current; requires heatsink mounting | Choose when system needs >100V reverse blocking and board-level thermal management is available |
| ON Semi MUR120E | 200V VRRM, 1.0A IF, DO-41 package, VF = 0.93V @ 1A, trr = 35ns | Lower voltage, smaller DO-41 footprint, faster recovery but not AEC-Q101 qualified | Choose for cost-sensitive consumer designs where automotive qualification is unnecessary |
Compared with STTH1L06U and MUR120E, HER151GH uniquely balances AEC-Q101 compliance, 1.5A current capability, DO-15 form factor, and 50V rating - making it optimal for space- and reliability-constrained automotive low-voltage DC-DC outputs.
Availability
HER151GH is available at Aetrix Electronics and suitable for automotive power conversion, industrial SMPS design, and LED driver secondary rectification requiring stable component supply and long-term lifecycle assurance.
Supply support for HER151GH 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in high-reliability power devices for automotive and industrial markets.
The HER151GH belongs to TSC's AEC-Q101-qualified high-efficiency rectifier family, designed specifically for demanding automotive power conversion applications where thermal robustness, surge immunity, and long-term stability are mandatory.
FAQ
What is the maximum junction temperature rating for HER151GH?
The HER151GH has a maximum junction temperature (TJ max) of +150°C, verified per AEC-Q101 stress testing. This rating allows sustained operation in under-hood automotive environments without derating until ambient exceeds 125°C. The HER151GH's glass-passivated die and DO-15 package maintain thermal integrity across repeated thermal cycles, ensuring reliability in engine control units and body electronics.
Is HER151GH pin-compatible with standard DO-15 rectifiers like 1N4007?
Yes, HER151GH uses the standard DO-204AC (DO-15) axial package with identical mechanical dimensions and cathode-band polarity marking as 1N4007. However, HER151GH delivers significantly lower VF (≤1.0V vs. ~1.1V) and faster trr (50ns vs. >2µs), enabling higher efficiency in switching applications - though electrical substitution requires verifying voltage/current/surge margins for the specific design.
Does HER151GH require a heatsink in typical 1.5A applications?
No, HER151GH does not require an external heatsink in natural-convection applications up to 1.5A at 25°C ambient, due to its 60°C/W RθJA and low 1.5W max power dissipation (1.5A × 1.0V). Derating begins above 75°C ambient, but the HER151GH remains within safe operating area up to 125°C ambient at reduced current - validated in automotive under-dash installations.
What does the "H" suffix in HER151GH signify?
Per Taiwan Semiconductor's ordering information, the "H" suffix in HER151GH denotes AEC-Q101 qualification - confirming that the device has passed rigorous stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing (uHAST). This makes HER151GH suitable for automotive powertrain and chassis systems where zero latent defects are required.
How does HER151GH compare to Schottky rectifiers in low-voltage applications?
HER151GH offers higher reverse voltage capability (50V vs. typically ≤45V for Schottkys) and superior thermal stability (150°C TJ max vs. ~125°C for most Schottkys), but with slightly higher VF (≤1.0V vs. ~0.4–0.6V). In 12V automotive systems where reverse transients rarely exceed 40V, HER151GH provides better surge immunity and lifetime reliability than Schottky alternatives - especially in high-temperature environments where Schottky leakage increases exponentially.
HER151GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AC, DO-15, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 1.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 50 V
- Capacitance @ Vr, F:
- 35pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HER151GH FAQ
1.How can I place an order for HER151GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HER151GH 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 HER151GH reliable?
The price and inventory of HER151GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER151GH is usually 5 days.
3.What payment methods are accepted for HER151GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER151GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HER151GH?
HER151GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HER151GH 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 HER151GH?
For technical support, including HER151GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER151GH requirements.
6.How does Aetrix verify that HER151GH is sourced from the original manufacturer or authorized distributors?
All HER151GH 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 HER151GH meets industry standards.
7.What is the process for return or replacement of HER151GH?
All HER151GH units undergo pre-shipment inspection (PSI). If there is an issue with HER151GH, 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 HER151GH part is unused and in its original packaging.
Return procedure for HER151GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HER151GH Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
