IAQ1H Series — Quarter Brick High Voltage Input

Overview

High Voltage Input, Rugged Reliability

The IAQ1H series delivers isolated DC/DC conversion for 65V–160V high voltage bus systems in the industry-standard quarter brick package. Full metal enclosure provides exceptional EMI shielding and thermal performance. Designed for railway, industrial control, and defense applications requiring wide input range and reliable operation in extreme conditions.

177W

Max Output Power

160V

Max Input Voltage

4.57M

MTBF Hours

Wide Input Range

65V–160Vdc continuous input with 200V/100ms transient capability. Supports 72V, 110V, and 150V bus systems commonly found in railway and industrial applications.

Metal Enclosed Package

Six-sides metal enclosure with silicone potting. Full EMI shielding, 2.0kV I/O isolation, and superior thermal conduction. Designed for extreme environmental conditions.

High Reliability

MTBF >4.57M hours (Bellcore TR-332). 330KHz fixed frequency, OTP protection, industry-standard quarter brick 8-pin interface with remote control.

Models

Standard Models

Budgetary version available. Contact factory for actual product availability or custom input/output configurations.

Model Number	Input Range	Max Input	Vout	Iout	Max Output	Efficiency
IAQ1H240xxxE-05xxA	65–160V	57W	24V	2A	48W	89%
IAQ1H240xxxE-05xxB	65–160V	80W	24V	3A	72W	90%
IAQ1H120xxxE-13xx0	65–160V	177W	12V	13A	156W	88%
IAQ1H050xxxE-10xxB	36–160V	59W	5V	10A	50W	85%

Specifications

Technical Specifications

All specifications are typical at nominal input, full load, and 25°C unless otherwise noted.

Absolute Maximum Ratings

Operating Temperature	-50°C to +110°C
Storage Temperature	-55°C to +125°C
Input Voltage (Operation)	-0.5V to +160Vdc
Input Transient (100ms)	200V Maximum
I/O Isolation	2.0KVdc Minimum
Input to Case Isolation	1.0KVdc Minimum
Output to Case Isolation	1.0KVdc Minimum
Remote Control Voltage	-0.5V to +12Vdc

General Parameters

Switching Frequency	330KHz Typical
MTBF (Bellcore TR-332)	4.57 × 10⁶ hrs @ GB/25°C
OTP Trigger	110°C ±5°C
Weight (Enclosure)	58g

Control Functions

Remote Control (Logic High)	+3.0V to +6.5V
Remote Control (Logic Low)	0V to +1.0V
RC Pin Input Current	-0.5mA to +1.5mA

Input

Operation Voltage Range	+65V to +160Vdc
Reflected Ripple Current	20mA rms / 60mAp-p
Power ON Voltage	+61.4V to +65.0V
Power OFF Voltage	+56.2V to +59.8V
Off State Input Current	6mA Max
Latch-State Input Current	8mA Max
Input Capacitance	4.7µF Max

Output

Voltage Accuracy	±1.0% Typical
Line Regulation	±0.3%
Load Regulation	±0.3%
Temperature Drift	±0.03%/°C
Output Tolerance Band	±4% All Conditions
Ripple & Noise (20MHz)	3% Vₒ (1% Vₒ RMS)
Over Voltage Protection	115~130% Vₒ
Current Limit	108%~125%
Voltage Trim Range	±10%
Input Ripple Rejection	-50dB @ <1KHz
Step Load Response	±6% Vₒ / 500µS
Start-Up Delay	20ms / 250ms

Package

Form Factor	Quarter Brick 8-Pin
Enclosure Type	Metal, Silicone Potted
Profile Height	0.37" (E version)
Weight	58g
Base Plate	Aluminum alloy, anode oxide
Mounting	M3×0.5 threaded inserts
Max Torque	3.9 in-Ib (0.44Nm)

Pinout

Pin Configuration & Functions

Industry-standard quarter brick 8-pin interface. Remote control, sense lines, and trim for flexible system integration.

Input Side

Pin 1−INNegative input

Pin 2PCRemote control

Pin 3+INPositive input

Output Side

Pin 4+VoPositive output

Pin 5+SRemote sense

Pin 6TRIMVoltage adjust

Pin 7−SRemote sense

Pin 8−VoNegative output

Performance

Typical Performance

Efficiency curves, derating, transient response, and ripple characteristics.

Start-up · Transient response · Ripple · Efficiency · Derating — View full detail in PDF →

Mechanical

Mechanical Drawings

Standard quarter brick metal enclosed package with 8-pin interface. 0.37" low profile.

Metal Enclosed Package — Quarter brick, 8-pin — View full detail in PDF →

58g

Weight (Enclosed)

160V

Max Input Voltage

110°C

OTP Trigger Point

Ordering Info

Model Number System

Configure your IAQ1H part number. Contact factory for actual product availability or custom configurations.

Position	Code	Description
Series	IAQ1H	Immense-Amazon Quarter Brick
Output V	050 / 120 / 240 / 480	5V / 12V / 24V / 48V
Logic	P / N	Positive / Negative Enable
Pin Length	0 / 1 / 2 / 3	0.12" / 0.16" / 0.20" / 0.24"
Standoff	0 / 1 / 2	0.02" / 0.08" / 0.16"
Package	E	Metal Enclosure 0.37"
Current	xx	Output current rating
Suffix	xx / x	Purchase code + version

Need a Custom Configuration?

Contact our engineering team for custom input/output voltages or application-specific modifications.

Contact Us →