# Non Isolated POL DC/DC Converter, ITE, DIP, 1 Output, 10 W, 5 V, 2 A
**URL**: https://novapart.co/products/B78C05-2R0/non-isolated-pol-dc-converter-ite-dip-1-output-10
**SKU**: B78C05-2R0
**Manufacturer**: PULSE ELECTRONICS
**Category**: Power & Line Protection || Power Supplies || DC / DC Converters || DC / DC Non Isolated Board Mount Converters - Fixed Output
**Price**: €3.7900
**Stock**: 50+
**Lead Time**: 80 days (indicative)
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Depth | 11.6mm |
| Width | 8.5mm |
| Height | 17.5mm |
| Product Range | B78C Series |
| No. Of Outputs | 1 Output |
| Output Power Max | 10W |
| Output Current Max | 2A |
| Output Voltage Nom | 5V |
| Input Voltage Dc Max | 36V |
| Input Voltage Dc Min | 6.5V |
| Dc / Dc Converter Type | DIP |
| Power Supply Applications | ITE |
| Dc / Dc Converter Mounting | Through Hole |
| Dc / Dc Converter Output Type | Fixed |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:4830049/)
## B78CXX-2R0 Series
Non-isolated DC-DC Converters
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## **Features**
- ⚫ Pin-Out Compatible with Lm78xx Linear Regulators
- ⚫ High Efficiency
- ⚫ Outstanding thermal derating performance
- ⚫ Short Circuit Protection
- ⚫ Over Current Protection
- ⚫ Lead Free Design, RoHS Compliant
- ⚫ Designed according to IEC/EN/UL 62368-1
## **Description**
The B78CXX-2R0 Series are non-isolated DC/DC converters suited to replace 2Amp LM78xx linear regulators. Designed with highly efficiency, allow the operating temperature range of these units to be -40°C to +85°C in a 11.6*8.5*17.5mm. Further features include wide 4.75 ~ 36VDC input voltage range, short-circuits protection and over current protection.
|Models and Ratings|Models and Ratings|Models and Ratings|Models and Ratings|Models and Ratings|Models and Ratings|Models and Ratings|Models and Ratings|
|---|---|---|---|---|---|---|---|
|Model Number|Input Voltage Range
(VDC)|Output Voltage
(VDC)|Output Current (mA)||Efficiency typ. (%)||Capacitive Load
max. (µF)|
||||Min. Load|Full Load|Min. Vin|Max. Vin||
|B78C03-2R0|4.75 - 36
12V nominal|3.3|0|2000|90|86|1200|
|B78C05-2R0|6.5 - 36
12V nominal|5|0|2000|93|90|660|
|B78C12-2R0|15 - 36
24V nominal|12|0|2000|97|93|470|
1 ey
PulseElectronics.com 1
V2 (2025.10.22)
B78CXX-2R0 Series Non-isolated DC-DC Converters
|Input Specifications
Input voltage range
See Models and Ratings table
~~|~~|Input Specifications
Input voltage range
See Models and Ratings table
~~|~~|Input Specifications
Input voltage range
See Models and Ratings table
~~|~~|Input Specifications
Input voltage range
See Models and Ratings table
~~|~~|Input Specifications
Input voltage range
See Models and Ratings table
~~|~~|
|---|---|---|---|---|
||Input filter||Capacitor Type|Capacitor Type|
||Input current|At no load|10 mA typ.|10 mA typ.|
||Input reverse polarity||Not allowed||
|Hot swap
Not supported
Output Specifications
Output current
2 A max.
~~|~~|||||
||Voltage accuracy|At 50% load|±4% max.|±4% max.|
||Minimum load||See Models and Ratings table|See Models and Ratings table|
||Line regulation|At full load|±0.8% max.|±0.8% max.|
||Load regulation|10% load to full load|±1.5% max.|±1.5% max.|
||Ripple and noise|20MHz bandwidth|75 mVp-p max.|75 mVp-p max.|
||Capacitive load||See Models and Ratings table|See Models and Ratings table|
||Over current protection||200% typ. of full load|200% typ. of full load|
||Short circuit protection||Continuous, automatic recovery|Continuous, automatic recovery|
||Transient recovery time|25% load step change (75% - 100% of Io)|25% load step change (75% - 100% of Io)
100 μs max.|100 μs max.|
|Temperature coefficient
±0.02% / °C max.
General Specifications
Efficiency
Nominal Vin and full load
See Models and Ratings table
~~es~~|||||
||Switching frequency|PWM|410 kHz typ.||
||Reliability, calculated MTBF|MIL-HDBK-217F, Ground Benign|2 × 106h||
||Operating ambient temperature|0.33m/s (65 FLM)|-40°C to +85°C||
||Storage temperature range||-55°C to +125°C||
|Relative humidity
95% RH max.
Physical Specifications
Case material
Plastic (UL 94 V-0)
~~Ce~~|||||
||Dimensions||11.6 × 8.5 × 17.5 mm||
||Weight||4 g typ.||
2 ey
PulseElectronics.com 2
V2 (2025.10.22)
B78CXX-2R0 Series Non-isolated DC-DC Converters
## **Characteristic Curves**
## Power Derating Curve
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0.33 m/s (65FLM)
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Efficiency vs Output Current
B78C03-2R0
B78C05-2R0
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3
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B78CXX-2R0 Series
Non-isolated DC-DC Converters
## **Design and feature configurations**
## EMI Filter
Input filter components are used to meet emissions requirement for the module. These components should be mounted as close as possible to the module; and all leads should be minimized to decrease EMI noise.
|EN55032 Class A|EN55032 Class A|EN55032 Class A|EN55032 Class A|
|---|---|---|---|
|Models|C1|C9|L1|
|B78C03-2R0
B78C05-2R0|10µF/50V
MLCC|10µF/50V
MLCC|PCM090704S-701
SMD CMC|
|B78C12-2R0|10µF/50V
MLCC|10µF/50V
MLCC|PCM090704S-102
SMD CMC|
## EN55032 Class B
|EN55032 Class B|EN55032 Class B|EN55032 Class B|EN55032 Class B|EN55032 Class B|EN55032 Class B|EN55032 Class B|
|---|---|---|---|---|---|---|
|Models|C1|C2, C3|C4, C5|C6|C7, C8, C9|L1|
|B78C03-2R0
B78C05-2R0|100µF/50V
Aluminum
electrolytic solid
capacitors|10µF/50V
MLCC|-|100µF/50V
Aluminum
electrolytic solid
capacitors|10µF/50V
MLCC|PCM090704S-701
SMD CMC|
|B78C12-2R0|100µF/50V
Aluminum
electrolytic solid
capacitors|100µF/50V
Aluminum
electrolytic solid
capacitors|10uF/50V
MLCC|100µF/50V
Aluminum
electrolytic solid
capacitors|10µF/50V
MLCC|PCM090704S-102
SMD CMC|
PulseElectronics.com
4
V2 (2025.10.22)
B78CXX-2R0 Series Non-isolated DC-DC Converters
## Typical Application
C1=100µF/50V, C2 =47µF/16V MLCC
## **Mechanical**
|**Pinout**|**Pinout**|
|---|---|
|PIN|Function|
|1|+Vin|
|2|GND|
|3|+Vout|
Dimensions in mm Tolerances: xx.x ±0.5 Tolerances: x.xx ±0.25 Pins: ±0.10
PulseElectronics.com 5
V2 (2025.10.22)
B78CXX-2R0 Series
Non-isolated DC-DC Converters
## **Wave Soldering Temperature Curve**
## **Carton Package**
## TUBE = 42PCS
INNER CARTON = 40 TUBE = 40*42 = 1680PCS EXPORT CARTON = 2 INNER CARTON = 2*1680 = 3360PCS
## For More Information:
Americas-prodinfonetworkamericas@pulseelectronics.com | Europe-comms-Apps-Europe@pulseelectronics.com | Asia-prodinfonetworkapac@pulseelectronics.com
Performance warranty of products offered on this datasheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be trademarks or registered trademarks of their respective owners. © Copyright, 2023. Pulse Electronics, Inc. All rights reserved.
PulseElectronics.com
6
V2 (2025.10.22)
## Links
- [View this product on Novapart](https://novapart.co/products/B78C05-2R0/non-isolated-pol-dc-converter-ite-dip-1-output-10)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/pulse-electronics/b78c05-2r0-r1/dc-dc-converter-5v-2a-24w/dp/4830049)
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